Commitment Tracking Table - Part a - Version 50 Commitment Tracking Table Trans Mountain Pipeline ULC Table a - Version 50 - June 7, 2021

6/4/2021 Condition 6 Commitment Tracking Table - Part A - Version 50 Commitment Tracking Table Trans Mountain Pipeline ULC Table A - Version 50 - June 7, 2021

Project Stage Commitment Status Prior to Constructon To be completed prior to constructon of specifc facility or relevant secton of pipeline Scoping Work has not commenced During Constructon To be completed during constructon of specifc facility or relevant secton of pipeline In Progress Work has commenced or is partally complete Prior to Operatons To be completed prior to commencing operatons Superseded by Conditon Commitment has been superseded by NEB, BC EAO conditon, legal/regulatory requirement Operatons To be completed afer operatons have commenced, including post-constructon monitoring conditons Complete Commitment has been met Project Lifecycle Ongoing commitment Superseded by Management Plan Addressed by Trans Mountain Policy or plans, procedures, documents developed for Project No Longer Applicable Change in project design or executon Superseded by TMEP Notfcaton Task Force Program Addressed by the project specifc Notfcaton Task Force Program No Longer Applicable Change in project design or executon Note: Red text indicates a change in Commitment Status or a new Commitment, from the previously fled version Addressed by Constructon Line List and Constructon / Environmental As indicated Alignment Sheets

Project Stage for Superseded by Team Responsible for Source(s) of Commitment Commitment ID Commitment Made To Commitment Descripton Implementaton of Conditon (x) Additonal Comments Commitment Commitment Status Commitment Number

118 Commercial City of Burnaby Trans Mountain is commited to a Community Benefts program and these positve legacies are in City Burnaby IR No. Project Lifecycle Superseded by NEB 145 This commitment will be refected in the Community Beneft Program Progress Reports that will be additon to any increase in property taxes, employment, procurement opportunites, and workforce 1.44.01i Conditon fled by January 31st of each of the frst fve years afer commencing operaton of the TMEP facilites spending that might arise from the proposed Project. (per NEB Conditon 145). 482 Commercial NEB Trans Mountain will contnue to develop and implement an Environmental Stewardship program as NEB IR No. 3.036a Prior to Constructon Superseded by NEB 145 This commitment will be relfected in the Community Beneft Program Progress Reports that will be part of the Trans Mountain Expansion Project. Trans Mountain will negotate Memoranda of Conditon fled by January 31st of each of the frst fve years afer commencing operaton of the TMEP facilites Understanding (MOU) with key stakeholders in each community that could be involved in the (per NEB Conditon 145). Environmental stewardship is a required element of those reports. Environmental Stewardship Program. 483 Commercial NEB Trans Mountain will contnue to develop and implement its Community Benefts Program as detailed NEB IR No. 3.036b Project Lifecycle Superseded by NEB 145 This commitment will be refected in the Community Beneft Program Progress Reports that will be in the Applicaton and in the response to NEB IR 3.036a. Trans Mountain has and will contnue to Conditon fled by January 31st of each of the frst fve years afer commencing operaton of the TMEP facilites negotate Memoranda of Understanding (MOU) with key stakeholders in each community that will (per NEB Conditon 145). be involved in the Community Benefts Program for the Project. 666 Commercial City of New Westminster, Trans Mountain is commited to investng in community benefts initatves in municipalites and City New Project Lifecycle Superseded by NEB 145 This commitment will be refected in the Community Beneft Program Progress Reports that will be Metro Vancouver regions crossed by the Project. Westminster IR No. Conditon fled by January 31st of each of the frst fve years afer commencing operaton of the TMEP facilites 2.C.3.iiiMetro (per NEB Conditon 145). Vancouver IR No. 1.1.4.02b 2204 Commercial NEB Trans Mountain will ensure memorandums of understanding (MOUs) are drawn up as initatves are NEB IR No. 3.036b Prior to Constructon Superseded by NEB 145 This commitment will be refected in the Community Beneft Program Progress Reports that will be confrmed for the Environmental Stewardship Program. Conditon fled by January 31st of each of the frst fve years afer commencing operaton of the TMEP facilites (per NEB Conditon 145). 81 Corporate Robyn Allan Trans Mountain will pay the expenses related to the debt fnancing for the Trans Mountain Allan R IR No. 1.06 Project Lifecycle Complete This is a statement of fact and standard business practce, and Trans Mountain will contnue to pay Expansion Project. hh any applicable expenses related to TMEP debt fnancing in its capacity as owner. 85 Corporate NEB Trans Mountain will have in place a stand-alone liability policy to cover liabilites that may arise as a NEB IR No. 1.8a Prior to Constructon Complete Trans Mountain is maintaining appropriate liability insurance coverage for the constructon phase of result of the constructon actvites undertaken by the Project. Third-party contractors involved in the project. More broadly, Trans Mountain remains subject to the liability and fnancial resource the constructon of the Project will also be required to maintain their own separate insurance requirements set out in the Canadian Energy Regulator Act and the Pipeline Financial Requirements coverage. Regulatons (i.e. within the context of constructng near an actve pipeline). 865 Corporate Squamish Naton Trans Mountain will commit to paying all claims for which it is legally responsible; this could be the Squamish Naton IR Project Lifecycle Superseded by The aspects of liability and fnancial requirements for now addressed in sectons 136-172 of the case for a land-based spill from a pipeline or marine terminal incident if oil spill impacts occurred No. 2.15.c Legal/Regulatory Canadian Energy Regulator Act, as well as the associated Pipeline Financial Requirements within Squamish territory. Requirement Regulatons. Trans Mountain is subject to those requirements as a federally-regulated pipeline company. 87 Emergency City of Burnaby Trans Mountain will fle the emergency management plan documents for the existng system on City Burnaby Prior to Constructon Complete In accordance with CER Order AO-001-MO-006-2016, Trans Mountain fles with the CER annual Management August 1, 2014 along with a request, pursuant to the Filing Manual, that the NEB treat them Atachment - Table updates of its Emergency Response Plans (ERP). Additonally, the ERPs are available to interested confdentally. 1.07.11 c) partes on Trans Mountain's website. Commitment addressed by Filings C06023 (2020), A99117 (2019) and A91472 (2018), Trans Mountain Annual Filing to CER Order AO-001-MO-006-2016. 97 Emergency NEB, New Democratc Party Trans Mountain has agreed to partcipate and support the Scientfc Advisory Commitee process NEB IR No. 1.63a, Prior to Operatons Superseded by NEB 124 Commitment will be addressed by CER Conditon 124 - Implementng improvements to Trans Management of Canada and is working with the Canadian Energy Pipeline Associaton (CEPA) and the Canadian Associaton NEB IR No. 1.63b, Conditon Mountain’s Emergency Management Program. Note: Conditon to be fled at least 6 months prior to of Petroleum Producers (CAPP). NDP IR No. 1.1.5f commencing operatons. Filing A3W9H8 IR 1.63 page 363/364 98 Emergency Province of Britsh Columbia As part of the Project, Trans Mountain will undertake a risk assessment and gap analysis to Province BC IR No. Prior to Operatons Superseded by BC 31 Commitment will be addressed by BC EAO Conditon 31 - Oil Spill Containment and Recovery Management determine the need for additonal Oil Spill Containment and Recovery (OSCAR) units and the most 1.1.22a EAO (OSCAR) Units. Note: Conditon to be fled at least 6 months prior to commencing operatons. efectve locaton for placement of the additonal OSCARs.

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101 Emergency Simon Fraser University Trans Mountain acknowledges Simon Fraser University’s (SFU’s) interests and concerns about SFU IR No. 2.6.8 Prior to Operatons Superseded by NEB 90, 123 Commitment addressed by Filing A83970, Conditon 90, Consultaton on improvements to Trans Management consultaton opportunites for the updated Emergency Management Program (EMP) for the Trans Conditon Mountain’s Emergency Management Program, Sectons 4 & 5 pp. 4-5; Commitment will be Mountain Expansion Project and will invite SFU to partcipate in the process such as Trans Mountain addressed by CER Conditon 123 - Evacuaton Plans. Note: Conditon to be fled at least 6 months Emergency Management Program. prior to commencing operatons at the terminals. 104 Emergency NEB Trans Mountain will establish control points for the new and proposed pipeline and conduct a NEB IR No. 1.73a, Prior to Operatons Superseded by NEB 125 Commitment will be addressed by CER Conditon 125 - Emergency Response Plans for the Pipeline Management regular review once in operaton. NEB IR No. 1.73b Conditon and for the Edmonton, Sumas and Burnaby Terminal. Note: Conditon to be fled at least 6 months prior to commencing operatons. 105 Emergency NEB Trans Mountain will maintain its Community Awareness and Emergency Response (CAER) program Part 2 – Consultaton During Operatons Complete Trans Mountain ofers Community Awareness Emergency Response (“CAER”) presentatons to frst Management and include the Trans Mountain Expansion Project. Update No. 1 responders and emergency management departments in accordance with the Emergency Management Liaison/Contnuing Educaton Standard. The CAER presentatons are ofered every two years on a rotatng basis, by operatonal district. 106 Emergency NEB Trans Mountain will be part of a forthcoming collaboratve mutual aid protocol between members of Applicaton Volume Prior to Operatons Complete On 2014-01-01, Canadian Energy Pipeline Associaton (CEPA), Mutual Emergency Assistance Management the energy pipeline industry, spearheaded by the Canadian Energy Pipeline Associaton, to support 5B, s 5, 5-162 Agreement (MEAA) was signed by all CEPA company members. each other’s emergency response eforts as needed. 111 Emergency City of Abbotsford Trans Mountain will consult with the City of Abbotsford and its frst responders in Emergency City of Abbotsford IR Prior to Operatons Superseded by NEB 90, 117 Commitment addressed by Filing A83970, Conditon 90, Consultaton on improvements to Trans Management Management planning. No. 1.0 Conditon Mountain’s Emergency Management Program, Sectons 4 & 5 pp. 4-5 and Appendix C pg. 22; Commitment addressed by Filing C09290, Conditon 117, Reportng on Improvements to Trans Mountain’s Emergency Management Program, Secton 2 pp. 2-5, Appendix B pg. 16, and Appendix D pg. 20. 112 Emergency District of North Vancouver Trans Mountain is commited to engaging with the District of North Vancouver on the Notfcaton District of North During Operatons Complete Commitment addressed by Filing C06023 Trans Mountain Annual Filing to CER Order AO-001-MO- Management process regarding an unlikely event of a release. Vancouver IR No. 006-2016. Pleases see Secton 2.1.3 Other Notfcatons and 2.13.1 - Local Governments of the Trans 2.02.01h Mountain Terminal Emergency Response Plan (v.2020) . Additonally, please see Secton 6.7 Liaison Ofcer and Secton 6.7.1.5 External EOC Liaison of the Trans Mountain Incident Command System Guide (v.2020). 471 Emergency NEB Trans Mountain remains commited to partcipatng through its membership in Canadian Energy NEB IR No. 3.023a During Operatons In Progress Trans Mountain remains a member of CEPA and recently partcipated as part of the Technical Management Pipeline Associaton (CEPA) in the Province’s Land Base Spill Response initatve. Working Group during the Province of B.C.s engagement on phase two policy concepts to improve response in the event of spills. Phase two regulatons are now being considered and Trans Mountain remains commited to partcipatng in ongoing spill response engagement if/when invited. Please see htps://cepa.com/en/cepa-members/ for a list of CEPA's full members. 497 Emergency NEB Trans Mountain will provide the NEB with a copy of the design basis for the Westridge Marine NEB IR No. 3.065 Prior to Constructon Superseded by NEB 127 Commitment will be addressed by CER Conditon 127 - Terminal Fire Protecton and Firefghtng Management Terminal fre protecton system as a conditon of future Project approval. Conditon Systems. Note: Conditon to be fled at least 3 months prior to applying for leave to open at Westridge Marine Terminal. 532 Emergency NEB Trans Mountain commits to engaging with local emergency responders near the Edmonton Terminal NEB IR No.4 28c, Prior to Operatons Superseded by NEB 90, 117 Commitment addressed by Filing A83970, Conditon 90, Consultaton on improvements to Trans Management to ensure that they are aware of all of the available fre-protecton systems and procedures prior to Filing Conditon Mountain’s Emergency Management Program, Sectons 4 & 5 pp. 4-5 and Appendix C pg. 22; the commencement of operatons. A4K4W34.28c.1 pg Commitment addressed by Filing C09290, Conditon 117, Reportng on Improvements to Trans 119 Mountain’s Emergency Management Program, Secton 2 pp. 2-5, Appendix A pg. 14, and Appendix B pg. 16. 559 Emergency Art Jackson O/A Alpine Art Trans Mountain will be developing Geographic Response Plans (GRPs) for all the areas transited by Alpine Art IR No. 2.5 Prior to Operatons Superseded by NEB 125 Commitment will be addressed by CER Conditon 125 - Emergency Response Plans for the Pipeline Management its expanded pipeline system. pg 9 Filing ID Conditon and for the Edmonton, Sumas and Burnaby Terminal. Note: Conditon to be fled at least 6 months A4H7Y2 prior to commencing operatons. 569 Emergency Burnaby Teachers' Trans Mountain commits to working with individual schools or School Districts to fully support their BTA IR No. 2.7, Filing Prior to Operatons In Progress Commitment will be addressed by consultaton actvites to be undertaken. Management Associaton safety eforts and ensure their Emergency Response Plans are coordinated with Trans Mountain's. A4H7Z5IR # 2.7 page 9 583 Emergency City of Abbotsford Trans Mountain confrms that an analysis is currently underway and that work to date will result in City of Abbotsford IR During Operatons Complete In 2015, an Oil Spill Containment and Recovery (OSCAR) was repositoned to the Sumas Staton, Management an Oil Spill Containment and Recovery (OSCAR) unit being staged within the City of Abbotsford at No. 2.3.07a where it remains, as noted on the Equipment Placement Map (2020). The Equipment Placement the Sumas Pump Staton beginning in the summer of 2015. Map is available to interested partes on Trans Mountain's website. 587 Emergency City of Abbotsford Trans Mountain commits to contnued engagement with the City of Abbotsford on enhancements to City of Abbotsford IR Prior to Operatons Superseded by NEB 90, 117 Commitment addressed by Filing A83970, Conditon 90, Consultaton on improvements to Trans Management the Emergency Management Program (EMP). No. 2.2.01.a), Filing Conditon Mountain’s Emergency Management Program, Sectons 4 & 5 pp. 4-5 and Appendix C pg. 22; A4H7Z9IR# 2.1.01 pg Commitment addressed by Filing C09290, Conditon 117, Reportng on Improvements to Trans 1 Mountain’s Emergency Management Program, Secton 2 pp. 2-5, Appendix A pg. 14, and Appendix B pg. 16. 608 Emergency City of Burnaby Trans Mountain will consider risk sensitve monitoring and proximity audible warning systems as a City Burnaby IR No. Prior to Operatons Superseded by NEB 123 Commitment will be addressed by CER Conditon 123 - Evacuaton Plans. Note: Conditon to be fled Management possible opton in the course of its development of the enhanced Emergency Management Plan 2.024; Filing ID Conditon at least 6 months prior to commencing operatons at the terminals. (EMP). A4H8A1 pg 87 657 Emergency City of Kamloops Trans Mountain will consult with the City of Kamloops and its frst responders in Emergency City of Kamloops IR Prior to Operatons Superseded by NEB 90, 117 Commitment addressed by Filing A83970, Conditon 90, Consultaton on improvements to Trans Management Management planning. No. 2.12, Filing Conditon Mountain’s Emergency Management Program, Sectons 4 & 5 pp. 4-5 and Appendix C pg. 22; A4H8F3 pg 30-34 Commitment addressed by Filing C09290, Conditon 117, Reportng on Improvements to Trans Mountain’s Emergency Management Program, Secton 2 pp. 2-5, Appendix A pg. 14, and Appendix B pg. 16, and Appendix D pg. 26 & pg. 31.

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667 Emergency City of New Westminster Trans Mountain will consult with the City of New Westminster and its frst responders in Emergency City New Prior to Operatons Superseded by NEB 90, 117 Commitment addressed by Filing A83970, Conditon 90, Consultaton on improvements to Trans Management Management planning. Westminster IR No. Conditon Mountain’s Emergency Management Program, Sectons 4 & 5 pp. 4-5 and Appendix C pg. 22; 2.D.1, Filing A4H8F6 Commitment addressed by Filing C09290, Conditon 117, Reportng on Improvements to Trans 2E.iv, pg 70-73 Mountain’s Emergency Management Program, Secton 2 pp. 2-5, Appendix A pg. 14, and Appendix B pg. 16. 673 Emergency City of North Vancouver Trans Mountain will consult with the City of North Vancouver and its frst responders in Emergency City North Prior to Operatons Superseded by NEB 90, 117 Commitment addressed by Filing A83970, Conditon 90, Consultaton on improvements to Trans Management Management planning. Vancouver IR No. Conditon Mountain’s Emergency Management Program, Sectons 4 & 5 pp. 4-5; Commitment addressed by 2.2.4, Filing A4H8G1 Filing C09290, Conditon 117, Reportng on Improvements to Trans Mountain’s Emergency 2.2.4 a, pg 22-23 Management Program, Secton 2 pp. 2-5, Appendix A pg. 14, and Appendix B pg. 16. 680 Emergency City of Port Moody Trans Mountain will commit to engaging with Port Moody in the review of the Westridge Emergency City of Port Moody Prior to Operatons Superseded by NEB 90, 117 Commitment addressed by Filing A83970, Conditon 90, Consultaton on improvements to Trans Management Response Plan. IR No. 2.3.28, Filing Conditon Mountain’s Emergency Management Program, Sectons 4 & 5 pp. 4-5 and Appendix C pg. 22; A4H8G7 2.48 b-d pg Commitment addressed by Filing C09290, Conditon 117, Reportng on Improvements to Trans 171-174 Mountain’s Emergency Management Program, Secton 2 pp. 2-5 and Appendix B pg. 16. 686 Emergency Mets Naton of Alberta Geographic Response Plans (GRPs) will be developed and ready for applicaton, to any spills that may Gunn Méts Local 55 Prior to Operatons Superseded by NEB 125 Commitment will be addressed by CER Conditon 125 - Emergency Response Plans for the Pipeline Management Gunn Mets Local 55 potentally occur, prior to the expanded pipeline system beginning operatons. IR No. 2.18; Filing ID Conditon and for the Edmonton, Sumas and Burnaby Terminal. Note: Conditon to be fled at least 6 months A4H8S2 Pg 27-30 prior to commencing operatons. 734 Emergency City of Richmond Trans Mountain will consult with the City of Richmond and its frst responders in Emergency City of Richmond IR Prior to Operatons Superseded by NEB 90, 117 Commitment addressed by Filing A83970, Conditon 90, Consultaton on improvements to Trans Management Management planning. No. 2.2.12 Conditon Mountain’s Emergency Management Program, Sectons 4 & 5 pp. 4-5 and Appendix C pg. 22; Commitment addressed by Filing C09290, Conditon 117, Reportng on Improvements to Trans Mountain’s Emergency Management Program, Secton 2 pp. 2-5, Appendix A pg. 14, and Appendix B pg. 16. 736 Emergency City of Richmond As part of enhancing its Emergency Management Program prior to operaton of the expanded City of Richmond IR Prior to Operatons Superseded by NEB 125 Commitment will be addressed by CER Conditon 125 - Emergency Response Plans for the Pipeline Management pipeline system, Trans Mountain will be reviewing and augmentng its inventory of control points. No. 2.2.15; Filing ID Conditon and for the Edmonton, Sumas and Burnaby Terminal. Note: Conditon to be fled at least 6 months A4H817 Pg 17-18 prior to commencing operatons. 746 Emergency City of Vancouver Trans Mountain will invite the Vancouver Costal Health Authority and the Fraser Valley Health City of Vancouver IR Prior to Operatons Superseded by NEB 90, 117 Commitment addressed by Filing A83970, Conditon 90, Consultaton on improvements to Trans Management Authority to partcipate in Emergency Management Planning. No. 2.04.03, Filing Conditon Mountain’s Emergency Management Program, Sectons 4 & 5 pp. 4-5; Commitment addressed by A4H8I9 pg 56-58 Filing C09290, Conditon 117, Reportng on Improvements to Trans Mountain’s Emergency Management Program, Secton 2 pp. 2-5, Appendix A pg. 14 and Appendix D pg. 30-32. 747 Emergency City of Vancouver Trans Mountain will incorporate wording into the current Emergency Management Program (EMP) City of Vancouver IR Prior to Operatons Complete Secton 6.3.3.1 - Right of Way Pipeline Fire Response Checklist of The Westridge Marine Terminal Management documents for Westridge Marine Terminal during the 2015 annual update of the Emergency No. 2.04.06.a Emergency Response Plan was updated in September 2017 to reference the Transport Canada Response Plan (ERP) to ensure clarity around response actons during a fre event specifc to the Emergency Response Guidebook - 2016. Commitment addressed by Filings C06023 (2020), A99117 terminal based on the recommendatons in the Emergency response Guidebook (ERG) 2012. (2019) and A91472 (2018), Trans Mountain Annual Filing to CER Order AO-001-MO-006-2016. Secton 6.3.3.1-Right of Way Pipeline Fire Response Checklist of the Westridge Marine Terminal. 757 Emergency Katzie First Naton Afected Aboriginal groups will be invited to partcipate in Unifed Command in the event of an Katzie FN IR No. 2 During Operatons Complete Commitment addressed by Filings C06023 (2020), A99117 (2019) and A91472 (2018), Trans Management incident. 2.12a Mountain Annual Filing to CER Order AO-001-MO-006-2016. Please see Secton 8.9 Unifed Command of the Trans Mountain Pipeline Emergency Response Plan (2020). Additonally, please see Secton 2.4 Unifed Command and Secton 4.3 Indigenous and US Tribal Stakeholders of the Trans Mountain Incident Command System Guide (2020). 772 Emergency Province of Britsh Columbia Trans Mountain will consult with the Province of BC in Emergency Management planning. Province BC IR No. Prior to Operatons Superseded by NEB 90, 117 Commitment addressed by Filing A83970, Conditon 90, Consultaton on improvements to Trans Management 2.21, Filing Conditon Mountain’s Emergency Management Program, Sectons 4 & 5 pp. 4-5 and Appendix A pg. 18; A4H8W6pg 119-121 Commitment addressed by Filing C09290, Conditon 117, Reportng on Improvements to Trans Mountain’s Emergency Management Program, Secton 2 pp. 2-5, Appendix A pg. 14, and Appendix D pp. 20-32. 774 Emergency Province of Britsh Columbia As part of the Emergency Management Program (EMP) review Trans Mountain will review Province BC IR No. Prior to Operatons Superseded by NEB 123 Commitment will be addressed by CER Conditon 123 - Evacuaton Plans. Note: Conditon to be fled Management informaton regarding shelter-in-place to ensure suitable messaging is incorporated into responses 2.31g; Filing ID Conditon at least 6 months prior to commencing operatons at the terminals. plans and public awareness materials. A4H8W6 IR No 2.30g Pg 148-154 775 Emergency Province of Britsh Columbia For areas that may potentally be afected by an oil spill from Trans Mountain along the Fraser and Province BC IR No. Prior to Operatons Superseded by NEB 125 Commitment will be addressed by CER Conditon 125 - Emergency Response Plans for the Pipeline Management North Thompson Rivers Trans Mountain commits to identfy and map side channels that could be 2.32, Filing ID Conditon and for the Edmonton, Sumas and Burnaby Terminal. Note: Conditon to be fled at least 6 months used in containment and recovery of oil, to consider access to these side channels and include A4H8W6 Pg 158-160 prior to commencing operatons. access details in its Emergency Management Plan (EMP) documents, and identfy available boat launches on these side channels and the spill response equipment in their vicinity. 776 Emergency Wembley Estates Strata Trans Mountain is commited to ensuring a prompt and immediate response to any fre event that Wembley Estates IR Prior to Operatons Superseded by NEB 125 Commitment will be addressed by CER Conditon 125 - Emergency Response Plans for the Pipeline Management Council involves Trans Mountain Pipeline or Facilites to protect the public, employees, environment, and No. 2.2f, Filing ID Conditon and for the Edmonton, Sumas and Burnaby Terminal. Note: Conditon to be fled at least 6 months property. A4H9K1 Pg 4-6 prior to commencing operatons. 778 Emergency Tsleil-Waututh Naton Trans Mountain acknowledges the Tsleil-Waututh Naton's interests and concerns with regard to the Tsleil-Waututh Prior to Operatons In Progress Once engagement has been deemed concluded an evidence package will be completed. Management updated Emergency Management Program (EMP) for the Trans Mountain Expansion Project (the Naton IR No. 2.3.1a Project) and will invite the Tsleil-Waututh Naton to partcipate in the process described above. 781 Emergency Province of Britsh Columbia The current Emergency Management Programs will be updated to refect the new program name Province BC IR No. Prior to Constructon Complete References to the Regional Environmental Emergencies Team (REET) in Trans Mountain's Emergency Management and descripton of the Regional Environmental Emergencies Team (REET) in the spring of 2015. 2.43 Response Plans have been replaced with the Science Table within the Environment Unit, in accordance with current industry best practces. Please see Secton 10.0 Planning Secton and Secton 10.2 Planning Secton Organizatonal Chart of the Trans Mountain Pipeline Emergency Response Plan (2020).

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782 Emergency Province of Britsh Columbia Trans Mountain has evaluated and completed pre-spill SCAT (shoreline characterizaton) surveys Province BC IR No. Prior to Operatons Complete Pre-spill Shoreline Characterizaton data has been provided to WCMRC for use in their Geographic Management applicable to a potental spill at the Westridge Marine Terminal (WMT) and will be evaluatng the 2.48a Response Strategies for the Inlet. surveys and actvites as part of the enhanced emergency management review. 816 Emergency Fraser Valley Regional Trans Mountain will conduct a consultaton program as part of developing the updated Emergency FVRD IR No. 2.02, Prior to Operatons Superseded by NEB 90, 117 Commitment addressed by Filing A83970, Conditon 90, Consultaton on improvements to Trans Management District Management Plan (EMP) as described in the NEB draf conditons related to emergency Filing A4H8S0pg 39- Conditon Mountain’s Emergency Management Program, Sectons 4 & 5 pp. 4-5; Commitment addressed by management. 40 Filing C09290, Conditon 117, Reportng on Improvements to Trans Mountain’s Emergency Management Program, Secton 2 pp. 2-5, Appendix B pg. 16 and Appendix D pg. 21. 864 Emergency Squamish Naton In the event that a pipeline release somehow adversely impacts drinking water aquifer conditons Squamish Naton IR During Operatons Superseded by BC 26 Commitment will be addressed by the fling of BC EAO Conditon-26 Drinking Water. Conditon to be Management that supply Squamish Naton, Trans Mountain commits to working with the leadership of the Naton No. 2.12j EAO fled prior to operatons. to identfy surplus capacity from other drinking water sources in the area, while suitable replacement alternatves are established and implemented. 869 Emergency Cheam First Naton and Trans Mountain will consult with First Natons in the development of enhanced Emergency Response Cheam and Prior to Operatons Superseded by NEB 90, 117 Commitment addressed by Filing A83970, Conditon 90, Consultaton on improvements to Trans Management Chawathil First Naton Plans (ERPs) for the expanded pipeline system. Trans Mountain is in the planning stages for a Chawathil FN IR No. Conditon Mountain’s Emergency Management Program, Sectons 4 & 5 pp. 4-5 and Appendix D pg. 23; workshop series. The series is expected to commence in Q2 2015 and First Natons with an interest 2(b).1.2.b.a, Filing Commitment addressed by Filing C09290, Conditon 117, Reportng on Improvements to Trans in the Project or Aboriginal interests potentally afected by the Project will be invited to atend. A4J7I8pg 4 Mountain’s Emergency Management Program, Secton 2 pp. 2-5, Appendix C pg. 17, and Appendix D pp. 20-22. 898 Emergency Tsleil-Waututh Naton Trans Mountain will consult with the Tsleil-Waututh Naton in Emergency Management planning. Tsleil-Waututh Prior to Operatons In Progress Once engagement has been deemed concluded an evidence package will be completed. Management Naton IR No. 2.3.1a 901 Emergency Wembley Estates Strata Trans Mountain will consider risk sensitve monitoring and proximity audible warning systems as a Wembley Estates IR Prior to Operatons Superseded by NEB 123 Commitment will be addressed by CER Conditon 123 - Evacuaton Plans. Note: Conditon to be fled Management Council possible opton in the course of its development of the enhanced Emergency Management Program. No. 2.2g, Filing ID Conditon at least 6 months prior to commencing operatons at the terminals. A4H9K1 Pg 4-6 921 Emergency Simon Fraser University Trans Mountain will consult with Simon Fraser University in Emergency Management planning. SFU IR No. 2.1.3 Prior to Operatons Superseded by NEB 90, 123 Commitment addressed by Filing A83970, Conditon 90, Consultaton on improvements to Trans Management Conditon Mountain’s Emergency Management Program, Sectons 4 & 5 pp. 4-5; Commitment will be addressed by CER Conditon 123 - Evacuaton Plans. Conditon to be fled at least 6 months prior to commencing operatons at the terminals. 922 Emergency Simon Fraser University Trans Mountain commits to contnued engagement with Simon Fraser University (SFU) on issues SFU IR No. 2.1.4 Prior to Operatons Superseded by NEB 90, 123 Commitment will be addressed by CER Conditon 123 - Evacuaton Plans. Note: Conditon to be fled Management such as safety, 24 hour access and risk mitgaton which outline the hazards and risks that the Conditon at least 6 months prior to commencing operatons at the terminals. Burnaby Terminal poses to SFU, as part of the Emergency Management Plan (EMP) consultaton process. 923 Emergency Simon Fraser University Trans Mountain confrms that Simon Fraser University (SFU) will be added to a notfcaton list in the SFU IR No. 2.1.4 Prior to Operatons Complete Commitment addressed by Filings C06023 (2020), A99117 (2019) and A91472 (2018), Trans Management event of an emergency at Burnaby Terminal that may impact SFU. Mountain Annual Filing to CER Order AO-001-MO-006-2016. Please see Secton 2.13.4 - Agency Contacts of the Trans Mountain Pipeline Emergency Response Plan (2020); Westridge Marine Terminal Emergency Response Plan (2020); and Terminals & Tank Farms Emergency Response Plan (2020). 924 Emergency Simon Fraser University Although the full details of the Emergency Management Plan (EMP) documents are not appropriate SFU IR No. 2.1.6 Prior to Operatons Superseded by NEB 90, 123 Commitment will be addressed by CER Conditon 123 - Evacuaton Plans. Note: Conditon to be fled Management to include as part of public fling, Trans Mountain is willing to meet with Simon Fraser University to Conditon at least 6 months prior to commencing operatons at the terminals. discuss Trans Mountain’s existng and updated EMP documents. 933 Emergency Calvin Taplay As with all schools in proximity to its pipeline and terminals, Trans Mountain remains willing and Taplay C IR No. Prior to Operatons In Progress Once engagement has been deemed concluded an evidence package will be completed. Management able to review Westridge Elementary School’s emergency response plan and provide input and 2.073, Filing advice on the plan if this is requested. A4H9G6pg 89 939 Emergency District of North Vancouver Trans Mountain will consult with the District of North Vancouver in Emergency Management District of North Prior to Operatons Superseded by NEB 90, 117 Commitment addressed by Filing A83970, Conditon 90, Consultaton on improvements to Trans Management planning. Vancouver IR No. Conditon Mountain’s Emergency Management Program, Sectons 4 & 5 pp. 4-5; Commitment addressed by 2.01.2, Filing Filing C09290, Conditon 117, Reportng on Improvements to Trans Mountain’s Emergency A4H8L7pg 7-17 Management Program, Secton 2 pp. 2-5, Appendix A pg. 14, and Appendix B pg. 16. 1594 Emergency Cheam First Naton and Consultaton regarding Emergency management planning with First Natons will occur during Cheam and Prior to Operatons Superseded by NEB 90, 117 Commitment addressed by Filing A83970, Conditon 90, Consultaton on improvements to Trans Management Chawathil First Naton individual sessions to be scheduled with each afected First Naton commencing in Q 2, 2015. Chawathil FN IR No. Conditon Mountain’s Emergency Management Program, Sectons 4 & 5 pp. 4-5 and Appendix D pg. 23; 2(b).1.2.c.b, Filing Commitment addressed by Filing C09290, Conditon 117, Reportng on Improvements to Trans A4J7I8pg 4-6 Mountain’s Emergency Management Program, Secton 2 pp. 2-5, Appendix C pg. 17, and Appendix D pp. 20-22. 1596 Emergency Province of Britsh Columbia Trans Mountain will review its wildlife care requirements for the Project as part of its Emergency Province BC IR No. Prior to Operatons Complete Trans Mountain has a Wildlife Management Plan which is posted on the Trans Mountain External Management Management Program (EMP) consultaton with the Province of BC. 2.37 website. 1597 Emergency Province of Britsh Columbia Trans Mountain will develop Geographic Response Plans (GRPs) which will become a part of the Province BC IR No. Prior to Operatons Superseded by NEB 125 Commitment will be addressed by CER Conditon 125 - Emergency Response Plans for the Pipeline Management enhanced Emergency Management Program (EMP). 2.35, Filing ID Conditon and for the Edmonton, Sumas and Burnaby Terminal. Note: Conditon to be fled at least 6 months A4H8W6 Pg 167-169 prior to commencing operatons. 1598 Emergency Peters Band Afected Aboriginal groups will be invited to partcipate in Unifed Command and encouraged to put Peters Band IR No. During Operatons Complete Commitment addressed by Filing C06023 Trans Mountain Annual Filing to CER Order AO-001-MO- Management forth their objectves and priorites along with other members of Unifed Command, to be directly 2(b). 2.4a 006-2016. Please see Secton 8.9 Unifed Command of the Trans Mountain Pipeline Emergency involved in emergency response decision and defniton of clean up criteria, and to receive real tme Response Plan (2020). Additonally, please see Secton 2.4 Unifed Command and Secton 4.3 updates throughout the course of the emergency. Indigenous and US Tribal Stakeholders of the Trans Mountain Incident Command System Guide (2020). 1615 Emergency Sto:lo Collectve As part of the workshop series described in the response to Recommendaton 2 Trans Mountain will Sto:lo Collectve Prior to Operatons In Progress Once engagement has been deemed concluded an evidence package will be completed. Management ofer a focused workshop to review Emergency Response Management planning. Recommendaton #7, #17, #57, #72

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1617 Emergency Sto:lo Collectve Trans Mountain will discuss additonal emergency response management (ERM) elements with Sto:lo Collectve Prior to Operatons In Progress Once engagement has been deemed concluded an evidence package will be completed. Management Sto:lo representatves. Recommendaton #10, #18, #19, #20, #84 1618 Emergency Sto:lo Collectve Trans Mountain will adhere to three-tered response structure during its emergency response to any Sto:lo Collectve During Operatons Complete Commitment addressed by Filing C06023 Trans Mountain Annual Filing to CER Order AO-001-MO- Management incident. Recommendaton 006-2016. Please see the Emergency Levels secton of the Trans Mountain Pipeline Emergency #10, #18, #84 Response Plan (2020). 1619 Emergency Sto:lo Collectve Trans Mountain will host 1-day Community Awareness and Emergency Response (CAER) Sto:lo Collectve During Operatons In Progress Once engagement has been deemed concluded an evidence package will be completed. Management presentaton for Sto:lo representatves. Recommendaton #10, #18, #84 1631 Emergency Sto:lo Collectve In the event of a spill in S’ólh Téméxw, Sto:lo representaton will be invited to partcipate in Unifed Sto:lo Collectve During Operatons Complete Commitment addressed by Filing C06023 Trans Mountain Annual Filing to CER Order AO-001-MO- Management Command as part of the Incident Command Structure (ICS). Recommendaton 006-2016. Please see Secton 8.9 Unifed Command of the Trans Mountain Pipeline Emergency #43 Response Plan (2020). Additonally, please see Secton 2.4 Unifed Command and Secton 4.3 Indigenous and US Tribal Stakeholders of the Trans Mountain Incident Command System Guide (2020). 1632 Emergency Sto:lo Collectve In the event of a spill or leak, Trans Mountain would be responsible for additonal monitoring of Sto:lo Collectve During Operatons Complete Commitment addressed by Filing C06023 Trans Mountain Annual Filing to CER Order AO-001-MO- Management residual efects and remediaton of impacts directly related to and caused by the spill. Recommendaton 006-2016. Please see Secton 8.18 Terminatng/Downgrading the Response, Secton 10.4.1 #43 Demobilizaton Procedures of the Trans Mountain Pipeline Emergency Response Plan (v.2020). 1657 Emergency Sto:lo Collectve Trans Mountain is commited to engagement regarding Community Awareness and Emergency Sto:lo Collectve Prior to Operatons In Progress Once engagement has been deemed concluded an evidence package will be completed. Management Response (CAER). Additonal reportng requests can be discussed. Recommendaton #85 2294 Emergency District of North Vancouver Trans Mountain must fle with the NEB for approval, at least 90 days prior to applying for leave to Reply Argument - Prior to Operatons Superseded by NEB 127 Commitment will be addressed by CER Conditon 127 - Terminal Fire Protecton and Firefghtng Management open, a report prepared by an independent body confrming the adequacy of the proposed fre Appendix A Conditon Systems. Note: Conditon to be fled at least 3 months prior to applying for leave to open at protecton and frefghtng systems implemented or planned to be implemented at the Westridge Comments on NEB Westridge Marine Terminal. Marine Terminal. Trans Mountain will provide a copy of the report to interested local governments. Draf Conditons - Conditon 109a 3650 Emergency Village of Valemount Trans Mountain will appoint an Operatons liaison to serve on Emergency Services commitee. Non-Regulatory During Operatons Complete Trans Mountain and Village of Valemount have met on several occasions to discuss the EM Program Management Commitment and Trans Mountain remains commited to serve on commitees, as appropriate, if/when invited and to ongoing emergency management engagement. The Village of Valemount partcipated in the planning of and atended the North Thompson Full-Scale Exercise held in Valemount in September 2019. Additonally, Village of Valemount was invited and atended the Valemount EM3 (2016) and EM4 (2018) emergency management workshops. An evidence package has been completed and includes samples of invitatons, meetng notes, and the post-exercise report. 3775 Emergency Kamloops Fire Department Trans Mountain will meet with the Kamloops Fire Department to develop a mutual aid agreement. Non-Regulatory Prior to Operatons Complete On 2015-11-01, Mutual Aid Agreement was signed between KMC and City of Kamloops. Management Commitment 3786 Emergency Workshop Partcipants Trans Mountain will ofer CAER training to frst responders in the BC Interior. SEEMP (Fraser Prior to Operatons Complete Trans Mountain ofers Community Awareness Emergency Response (“CAER”) presentatons to frst Management Valley), 7/14/2015, responders and emergency management departments in accordance with the Emergency Staketracker Management Liaison/Contnuing Educaton Standard. The CAER presentatons are ofered every two years on a rotatng basis, by operatonal district. An evidence package has been completed and includes samples of invitatons to presentatons. 3789 Emergency Emergency Management BC Trans Mountain will invite Kamloops Emergency Management Workshop atendees to partcipate in Community Beneft During Operatons Complete Kamloops Fire Rescue was invited and atended the Kamloops District Full Scale Exercises held in Management Emergency Management Exercises and Training and will follow-up with atendees regarding Agreement, Kamloops on May 18-19, 2016 and February 11-12, 2020. Additonally, Kamloops Fire Rescue were additonal inputs to the Geographic Response Plans. Training may include security awareness where 2/15/2016, invited and atended the Kamloops EM3 (2016) and EM4 (2018) emergency management appropriate. Staketracker workshops, which provided informaton and the opportunity to comment on the Geographic Response Plans. Trans Mountain and Kamloops Fire Rescue have also met on several occasions to discuss the EM Program. An evidence package for this correspondence has been completed which includes exercise invites and afer acton reports, meetng notes, and invitatons. 5 Environment Adams Lake Indian Band All hydro statc test water to be released directly or indirectly into a watercourse/wetland/lake will ALIB IR No. 1.2.6a Prior to Constructon Superseded by NEB 72 Commitment addressed by CER Conditon 72, CER Filing ID C01961, Conditon 72 Pipeline be tested prior to and during release. Any parameters to be tested that are not measurable in the Conditon Environmental Protecton Plan, Secton 15.0 and Water Withdrawal and Discharge Procedures feld will be tested prior to release, not during release. Hydro statc test water will be tested and Management Plan in Secton 8.5 of Appendix G, Pages: 90, 92, G-154 to G-156. verifed as meetng guidelines for contaminant concentratons before it is released in accordance with approval/permit/notfcaton conditons. 7 Environment NEB Trans Mountain will review and consider concerns raised by Aboriginal communites regarding the NEB IR No. 1.22e Prior to Constructon Superseded by NEB 98 Commitment addressed by CER Conditon 98, CER Filing ID C00105, Conditon 98 Plan for roles and responsibilites of the Aboriginal Monitors. Conditon Indigenous Group Partcipaton in Constructon Monitoring, Appendix A, Page: A-14 to A-21. 16 Environment Parents From Cameron Noise management plans that will be developed for the Project constructon will incorporate the Cameron School Prior to Constructon Superseded by NEB 74, 80, 86 Commitment addressed by CER Conditon 74, 80, 86. CER Filing IDs C09038, C08036, C06875, Elementary School Burnaby components of the NEB Draf Conditon No. 29 (Pipeline Environmental Protecton Plan) of the NEB’s Parents IR No. 1.2.1a Conditon C06343, C05703, C05553, C04017, C02395, C01524, C00856, C00689, C00377, A84115, A84761, Leter – Draf Conditons and Regulatory Oversight (NEB 2014) limit the efect of noise at sensitve Conditon 74 HDD Noise Management Plan, Plans address this commitment. CER Filing ID C06928, receptors and include a monitoring component to verify efectveness of controls. Conditon 80 Terminals Constructon Noise Management Plan, Plan addresses this commitment. Conditon 86, CER Filing ID C05211, Conditon 86 BMT Constructon Noise Management Plan, Plan addresses this commitment. 24 Environment City of Abbotsford Trans Mountain will commit to meetng the specifcatons of the Ledgeview Golf Course in its City of Abbotsford IR During Operatons In Progress Proof of completon will be the completed and accepted restoraton Plan for Ledgeview Golf Course. restoraton methods (for example, type of soil, grass). No. 1.25b.ii

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26 Environment City of Abbotsford Trans Mountain commits to consultng with the City of Abbotsford concerning the erosion and City of Abbotsford IR During Constructon No Longer This commitment is no longer applicable. Work not occurring at Sumas Pump Staton. Facilites sediment control of the Sumas Drainage Canal Dyke and to implementng mitgaton measures. No. 1.17a Applicable scope of work is outlined in Conditon 78, CER Filing ID C06991, Facilites EPP, Appendix D, Page: D-1 to D-9. 32 Environment City of Burnaby The Trans Mountain contractor (yet to be determined) will select a wildlife-proof garbage container City Burnaby IR No. Prior to Constructon Superseded by NEB 72,78,81 Commitment addressed by CER Conditon 72, 78, 81. CER Filing ID C01961, Conditon 72 Pipeline suitable for the volume of material expected. 1.19.10f Conditon EPP, Secton 7.0, Page: 30. CER Filing ID C06991, Conditon 78 Facilites EPP, Secton 6.0, Page: 6-5, CER Filing ID C08265, Conditon 81 Westridge Marine Terminal EPP, Secton 6.0, Page: 6-6. 34 Environment City of Burnaby Trans Mountain will conduct constructon noise monitoring at the Westridge Marine Terminal which City Burnaby IR No. Prior to Constructon Superseded by NEB 74, 80, 86 Commitment addressed by CER Conditon 80, 86, CER Filing ID C06928, Conditon 80 Terminals will incorporate the components of the NEB Draf Conditon No. 33 of the NEB’s Leter – Draf 1.29.01b Conditon Constructon Noise Management Plan, Secton 3.0, Page: 7 to 11. Conditon 86, CER Filing ID Conditons and Regulatory Oversight (NEB 2014). For noise during operatons, a monitoring program C05211, Conditon 86 BMT Constructon Noise Management Plan, Secton 7.0, Page: 16. will be conducted at the terminal as outlined in Secton 9.10 of Volume 6A, Environmental Compliance of the Applicaton. 38 Environment Halston Hills Co-op Trans Mountain will endeavour to limit the amount of tree removal adjacent to the Halston Hills Co- Halston Hills IR Project Lifecycle In Progress Proof of completon will be the Constructon Plan to show the clearing areas, and the Conditon 151 op. Depending on factors such as locaton, land-use, etc., replantng of trees may be undertaken No.1.4g.i Post-constructon monitoring plan to demonstrate the reclamaton. within the temporary workspace locatons that were cleared as part of the proposed constructon. Final clearing and restoraton requirements will be determined through detailed engineering and design. 39 Environment Terence Inskip If the original grade within the constructon footprint cannot be restored, the fnal restoraton of the Inskip T IR No. 1b During Constructon Superseded by NEB 72 Commitment addressed by CER Conditon 72, CER Filing ID C01961 Conditon 72 Pipeline slopes will ensure that a stable slope angle and profle are achieved and that the slopes within the Conditon Environmental Protecton Plan, Secton 13.1, Page: 66. CER Filing ID A86570, Conditon 72 constructon footprint are blended/naturalized to the extent practcal. Reclamaton Management Plan, Secton 2.2, Page: 8. 40 Environment Parents From Cameron Trans Mountain will manage noise through applicable NEB Draf Conditons No. 29 through 33, and Cameron School Project Lifecycle Superseded by NEB 72, 74, 78, 80, 81, Commitment addressed by CER Conditon 72, 74, 78, 80, 81, 141. CER Filing ID C01961, Conditon 72 Elementary School Burnaby 57 relatng to updated Environmental Protecton Plans, Horizontal Directonal Drilling Noise Parents IR No. 1.2.2a Conditon 141 Pipeline EPP, Secton 7.0, Page: 21 to 22, CER Filing IDs C09038, C08036, C06875, C06343, C05703, Management Plan, a Noise Management Plan for pump statons, facilites and Westridge Marine C05553, C04017, C02395, C01524, C00856, C00689, C00377, A84115, A84761, Conditon 74 HDD Terminal, and post-constructon noise surveys at select terminals. Noise Management Plan, Plans address this commitment. CER Filing ID C06991, Conditon 78 Facilites EPP, Secton 6.0, Page: 6-4, CER Filing ID C05815, Conditon 78 TCLI EPP, Secton 7.0, Page: 22, CER Filing ID C06928, Conditon 80 Terminals Constructon Noise Management Plan, Plan addresses this commitment. CER Filing ID C08265, Conditon 81 Westridge Marine Terminal EPP, Secton 6.0, Page: 6-5, Commitment will be addressed by CER Conditon 141, Not yet fled (within 3 months afer commencing operatons), CER Conditon 141 Post-constructon noise surveys. 45 Environment Simpcw First Naton Aboriginal monitors will be invited to atend kick-of meetngs (Spread 3). SIMPCW F N IR No. Prior to Constructon Complete Proof of completon will be the atendance records for the kick-of meetngs. 1.149a 46 Environment City of Abbotsford The Reclamaton Plan will be fnalized before constructon. Trans Mountain will consult with the City City of Abbotsford IR During Constructon In Progress Proof of completon will be the approved City of Abbotsford Reclamaton Strategy. of Abbotsford to develop the reclamaton strategy for City lands that may be disturbed during No. 2.2.09c) constructon of the TMEP. 48 Environment NEB An Agricultural Monitor who is familiar with soils, drainage and agricultural producton will be in NEB IR No. 2.045b Prior to Constructon Superseded by NEB 72 Commitment addressed by CER Conditon 72, CER Filing ID C01961 Conditon 72 Pipeline place for the Lower Mainland of BC. Environmental Inspectors will be in place in all geographic areas. Conditon Environmental Protecton Plan, Secton 7.0, Page: 24. 49 Environment NEB In the case where use of an impact hammer is deemed necessary for engineering reasons, Trans Applicaton Volume During Constructon Superseded by NEB 81 Commitment addressed by CER Conditon 81, CER Filing ID C08265, Conditon 81 Westridge Marine Mountain will implement underwater noise mitgaton such as bubble curtains at the Westridge 5A, 7-467. Conditon Terminal EPP, Secton 8.0, Page: 8-3. Marine Terminal. 52 Environment NEB Trans Mountain will develop and implement a Worker Code of Conduct policies, which will cover Applicaton Volume Prior to Constructon Superseded by NEB 59 Commitment addressed by CER Conditon 59, CER Conditon 59 Worker Accommodate Strategy, CER guidance on the safe and respectul use of community facilites. 5B, 7-150. Conditon Filing ID A85812, Appendix E Worker Code of Conduct, Page E-1 to E-3. 61 Environment NEB Trans Mountain will work with Environment Canada and comply with the Migratory Birds Applicaton Volume During Constructon Superseded by NEB 72, 78, 81 Commitment addressed by CER Conditon 72, 78, 81. CER Filing ID C01961, Conditon 72 Pipeline Conventon Act and Migratory Birds Sanctuary Regulatons related to the Project components and 5A, Technical Update Conditon EPP, Secton 7.0, Page: 19, Conditon 72, CER Filing ID C00470 (Spread 1), RSMT Secton 4.2, Page 8. impacts. Trans Mountain will conduct clearing and preconstructon actvites outside the minimum No. 1 and CER Filing ID C00475 (Spread 2), RSMT Secton 4.2, Page: 10. CER Filing ID C05272 (Spread 3/4a), migratory bird restricted actvity period (RAP) of May 1 to July 31 where practcal. Consultaton Update RSMT Secton 4.2, Page: 11. CER Filing ID C03930 (Spread 4b), RSMT Secton 4.2, Page: 8. CER Filing No. 2 - Part 2 Table ID C04634 (Spread 5a), RMST Secton 4.2, Page: 21. CER Filing ID C05600 (Spread 5b), RSMT Secton 1.6.2-1 4.2, Page: 19. CER Filing ID C03931 (Spread 7), RSMT Secton 4.2, Page 17. CER Filing ID C06991, Conditon 78 Facilites EPP, Secton 6.0, Appendix D, Page: 6-2, Table D-1. CER Filing ID C08265, Conditon 81 Westridge Marine Terminal EPP, Secton 6.0, Appendix D, Page: 6-3, Table D-1. 63 Environment NEB Trans Mountain will, as soon as weather and soil conditons permit and insofar as it is practcable so Applicaton Volume During Constructon Superseded by NEB 72 Commitment addressed by CER Conditon 72, CER Filing ID C01961, Conditon 72 Pipeline EPP, to do, bury and maintain the Pipeline in a manner that will not interfere with the drainage or 2, appendix E. Conditon Secton 12.0, Page: 62 to 63. ordinary cultvaton of the Lands, and will restore all drains damaged or disturbed by the operaton, according to good drainage practce. 65 Environment Adams Lake Indian Band In the unlikely event existng sediment contaminaton is identfed at a watercourse crossing during ALIB IR No. 1.2.3a.2, During Constructon Superseded by NEB 72 Commitment addressed by CER Conditon 72, CER Filing ID C01961, Conditon 72 Pipeline EPP, constructon, Trans Mountain will implement remedial measures in the Contaminaton Discovery Volume 6B Appendix Conditon Secton 1.0 of Appendix B, Page: B-3. Contngency Plan in Appendix B of Volume 6B of the Applicaton. B (A3S2S3 PDF page 165) 67 Environment NEB Any salvaged topsoil or stripping will be segregated and stockpiled along the constructon right-of- Pre-Applicaton During Constructon Superseded by NEB 72, 78, 81 Commitment addressed by CER Conditon 72, 78, 81. CER Filing ID C01961, Conditon 72 Pipeline way, and at facility sites in low-profle berms or in piles adjacent to the site perimeter. Project Descripton, Conditon EPP, Secton 10.0, Page: 54. CER Filing ID C06991, Conditon 78 Facilites EPP, Secton 8.0, Page: 8-2 p 18. CER Filing ID C08265, Conditon 81 Westridge Marine Terminal EPP, Secton 7.3, Page: 7-6. 69 Environment NEB The contractor(s), subcontractors and the Inspector(s) will be provided with copies of all Applicaton Volume Prior to Constructon Superseded by NEB 72, 78, 81 Commitment addressed by CER Conditon 72, 78, 81. CER Filing ID C01961, Conditon 72 Pipeline approvals/licenses and permits including the most recent updates and revisions, and will comply 5A, 7-128. Conditon EPP, Secton 4.0, Page: 8 CER Filing ID C06991, Conditon 78 Facilites EPP, Secton 4.0, Page: 4-1, CER with all conditons presented to Trans Mountain. Filing ID C08265, Conditon 81 Westridge Marine Terminal EPP, Secton 4.0, Page: 4-1.

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70 Environment NEB To avoid or reduce efects of a drilling mud release on surface water quality, Trans Mountain will Applicaton Volume During Constructon Superseded by NEB 72 Commitment addressed by CER Conditon 72, CER Filing ID C01961 Conditon 72 Pipeline contnually monitor for sediment release (i.e., turbidity and total suspended solids [TSS]) throughout 5A, 7-70. Conditon Environmental Protecton Plan, Appendix B, Bentonite Fluid Release Contngency Plan, Appendix G, the crossing constructon period. In the event of a release into a watercourse, Trans Mountain will Water Quality Monitoring secton, Page: B-8, G-143. immediately suspend drilling actvites and implement measures outlined in the Drilling Mud Release Contngency Plan to reduce efects of drilling mud release into the watercourse. Any releases would be reported to Fisheries and Oceans Canada (DFO) and Alberta Environment and Sustainable Resource Development (AESRD) or BC Ministry of Environment (MOE) and clean up and monitoring will be carried out untl water quality is returned to existng (background) conditons. 73 Environment NEB Trans Mountain will consult with and inform landowners of the potental to be afected by emissions Applicaton Volume Prior to Constructon Superseded by NEB 72 Commitment addressed by CER Conditon 72, CER Filing ID C01961, Conditon 72 Pipeline EPP, from constructon actvites prior to commencement of these actvites in proximity to the respectve 5A, 7-89 Conditon Secton 7.0 Page: 22. landowners. 75 Environment Peters Band Before constructon, Trans Mountain will collect baseline water quality data from existng water Peters Band IR No. Prior to Constructon Superseded by NEB 46, 72 Commitment addressed by Conditon 46, 72, CER Filing ID A90938, Conditon 46 Contaminaton supply wells in areas of the reserve that are identfed as having potental for contaminated soils. The 2(b).2.5(b) Conditon Identfcaton and Assessment Plan, Secton 4.0, Page: 8 to 9. Conditon 72, CER Filing ID C01961, wells will be resampled afer trenching and when constructon in the area has been completed. Conditon 72 Pipeline EPP, Secton 1.0 in Appendix B, Page: B-3 to B-5. Sampling data will be compared to the baseline conditons. 86 Environment City of Burnaby Clearing operatons for pipeline in the City of Burnaby will not entail any burning actvites. Clearing City Burnaby IR No. Prior to Constructon Superseded by NEB 72 Commitment addressed by CER Conditon 72, CER Filing ID C01961 Conditon 72 Pipeline actvites for Burnaby will follow non-burning protocols as outlined in Secton 8 of the Environmental 1.33.27c Conditon Environmental Protecton Plan, Secton 7.0 and 8.0, Page: 28, 38, 40. Protecton Plan (EPP), Volume 6B. 100 Environment Adams Lake Indian Band Prior to constructon, a vegetaton survey will be conducted to identfy if any species that require ALIB F-IR No. 1.4.5c Prior to Constructon Superseded by NEB 40, 42 Commitment addressed by CER Conditon 40, 42, CER Filing ID A90904, Conditon 40 Rare Ecological special consideraton before, during and afer constructon are present along the constructon right- Conditon Community and Rare Plant Populaton Management Plan, Secton 4.0, Appendix D, E, Page: 17 to 21, of-way. If warranted, detailed vegetaton (including rare plants) assessments will be completed at D-2 to D-17, E-2 to E-19. Rare plant supplemental surveys, results of all surveys, and pre-disturbance sites where reclamaton problems are identfed in the Environmental Issues List. surveys provided in pages listed. CER Filing ID A84318, Conditon 42 Grasslands Survey and Mitgaton Plan, Secton 3.3, Page: 13 describes the vegetaton surveys completed prior to constructon. 113 Environment Adams Lake Indian Band, Trans Mountain plans to hire qualifed Aboriginal monitors for Environmental monitoring and ALIB IR No. 1.6.04, During Constructon Superseded by NEB 98 Commitment addressed by CER Conditon 98, CER Filing ID C00105, Conditon 98 Plan for Neskonlith Indian Band inspecton jobs during the constructon of the Project. Neskonlith IB IR No. Conditon Indigenous Group Partcipaton in Constructon Monitoring, Secton 3.0, Page: 5. 1.II.2e 128 Environment Sto:lo Collectve Trans Mountain will discuss the opportunity for Sto:lo partcipaton in pre-constructon weed Sto:lo Collectve Prior to Constructon In Progress Commitment is in progress. Trans Mountain contnues to engage with Sto:lo on weed and surveys. Recommendaton vegetaton management. Commitment will be complete with engagement logs between Trans #35 Mountain and Sto:lo, and partcipaton records, if applicable. 156 Environment City of Burnaby Trans Mountain will review the status of the current storm water discharge permit for Westridge City Burnaby IR No. Prior to Constructon Complete Ministry of Environment Amended Permit 3678 under the Provisions of the Environmental Marine Terminal with the BC Ministry of Environment to determine if the existng permit will remain 1.20.02a Management Act dated June 11, 2020. Permit provides authorizaton to discharge efuent to in efect, if the existng permit will require an amendment, or if a new permit will be required. Burrard Inlet from a jet fuel storage and crude oil shipping facility. 175 Environment Metro Vancouver Trans Mountain will engage with Metro Vancouver regarding their request for stack testng and Metro Vancouver IR Prior to Constructon Complete Meetngs were held with Metro Vancouver. Dates where stack testng and/or dispersion modelling dispersion modelling when engineering plans are further advanced. No. 1.1.6.03g were discussed include the following: September 25, 2014 and November 13, 2014. 177 Environment Province of Britsh Columbia Trans Mountain plans to identfy all water wells within the Project Footprint prior to constructon. Province BC IR No. Prior to Constructon Superseded by NEB 93 Commitment addressed by CER Conditon 93, CER Filing ID A84458, Conditon 93 Water Well 1.1.38c Conditon Inventory, Secton 2.0, Page: 6. 195 Environment NEB A master watercourse crossing table will be created by combining the Fish Habitat list and the NEB IR No. 2.101e Prior to Constructon Superseded by NEB 43 Commitment addressed by CER Conditon 43, CER Filing ID C00815, Conditon 43 Watercourse Hydrology list to ensure that all watercourses have been captured and accounted for and submited (Filing ID A3Z4T9), Conditon Crossing Inventory Update (Appendix A-D), CER Filing ID C08399 (Spread 4b update), CER Filing ID as part of Technical Update No. 3 on September 4, 2014. NEB F-IR No. 2.101e C08687 (Spread 1 and 2 update), CER Filing ID C10251 (Spread 5a update). Complete documents (Filing ID A4A7Y8), address this commitment. NEB F-IR No. 2.101e- Atachment 1 (A4A7Y9) 196 Environment Sto:lo Collectve Trans Mountain will discuss the opportunity for Sto:lo partcipaton in pre-constructon weed Sto:lo Collectve Project Lifecycle In Progress Commitment is in progress. Trans Mountain contnues to engage with Sto:lo on weed and surveys. Recommendaton vegetaton management. Commitment will be complete with engagement logs between Trans #35 Mountain and Sto:lo, and partcipaton records, if applicable. 206 Environment City of Burnaby Trans Mountain land agents will work with private property owners and Trans Mountain City Burnaby IR No. Prior to Constructon Superseded by NEB 72 Commitment addressed by CER Conditon 72, CER Filing ID A86570, Conditon 72 Reclamaton Reclamaton, in conjuncton with Trans Mountain Permitng, on reclamaton plans for afected 1.33.09d;NEB Route Conditon Management Plan, Secton 1.6, 5.11 Page: 5, 39. areas. Where deep trenchless methods are used the green belts will not be disturbed. Hearing TMEP Evidence Seg 7 Burnaby 224 Environment Sto:lo Collectve Trans Mountain will contnue to engage Stó:lō representatves through all phases of the Project. Sto:lo Collectve During Operatons In Progress Proof of completon will be the Conditon 96 Reports on engagement with Indigenous groups – Vegetaton monitoring is part of the Post Constructon Environmental Monitoring (PCEM) program Recommendaton constructon to be fled with the CER every 6 months untl commencing operatons. and vegetaton re-establishment will be compared to a similar reference plant community located #38, 39 adjacent to, or within, the vicinity of the constructon right-of-way and pre-constructon conditons. Discuss the opportunity for Stó:lō partcipaton and input into the planned monitoring scheduled . 234 Environment Sto:lo Collectve Trans Mountain will contnue to engage Stó:lō representatves through all phases of the Project. Sto:lo Collectve During Operatons In Progress Proof of completon will be the Conditon 96 Reports on engagement with Indigenous groups – Vegetaton monitoring is part of the Post Constructon Environmental Monitoring (PCEM) program Recommendaton constructon to be fled with the CER every 6 months untl commencing operatons. and vegetaton re-establishment will be compared to a similar reference plant community located #38, 39 adjacent to, or within, the vicinity of the constructon right-of-way and pre-constructon conditons. Discuss the opportunity for Stó:lō partcipaton and input into the planned monitoring scheduled .

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255 Environment Squamish Naton In the event of a spill that were to impact Squamish land Trans Mountain will commit to meet with Squamish Naton IR During Operatons In Progress Proof of completon will copy of meetng minutes should a spill occur that impacts Squamish land. Squamish to understand the remediaton concerns and interests, and work to resolve any issues that No. 2.04(h) are not resolved in the inital clean up. 258 Environment Adams Lake Indian Band A minimum of two Environmental compliance audits per year for each individual prime contractor ALIB IR No. 1.6.07 During Constructon In Progress Proof of completon will be the environmental compliance audits completed by a third-party (mainline constructon) or constructon spread will be conducted by a qualifed, third-party consultant at a regular interval. consultant. 259 Environment Adams Lake Indian Band Trans Mountain will prepare a spoted owl mitgaton plan for the Project, following the guidelines ALIB IR No. 1.5.5, Prior to Constructon Superseded by NEB 38 Commitment addressed by CER Conditon 38 and 44, Filing ID A85803, Conditon 38 Sowaqua and recommendatons provided by BC Ministry of Forests, Lands and Natural Resource Operatons NEB IR No. 1.46c Conditon Spoted Owl Mitgaton Plan, Document covers this commitment. CER Filing ID A90906, Conditon 44 (MFLNRO), which have been applied on previous development projects (refer to NEB IR No. 1.46a Williamson's Sapsucker and Lewis’s Woodpecker Mitgaton and Habitat Restoraton Plan, Appendix and c). Trans Mountain will ensure consultaton with BC MFLNRO and Environment Canada A, Page: A-3 to A-11. regarding feld survey and mitgaton planning for Williamson’s sapsucker and Lewis’s woodpecker critcal habitat contnues over the planning phase of the Project to develop appropriate mitgaton that meets regulatory expectatons and conservaton objectves. 260 Environment Adams Lake Indian Band As part of the Post-Constructon Environmental Monitoring (PCEM) program, Trans Mountain will ALIB IR No. 1.5.7e During Operatons Superseded by NEB 47 Commitment addressed by CER Conditon 47, Filing ID A90912, Conditon 47 Access Management monitor the success of access control measures implemented along segments of the constructon Conditon Plan, Secton 5.0 (Table 5.1), Page 34. right-of-way by visually assessing evidence of human access. 261 Environment Adams Lake Indian Band In areas where natural recovery is unsuccessful, remedial measures will be implemented and may ALIB F-IR No. 1.5.6a Project Lifecycle Superseded by NEB 71 Commitment addressed by CER Conditon 71, Filing ID A90936, CER Conditon 71 Riparian Habitat include but not be limited to: soil stability or erosion control measures, seeding areas using an Conditon Management Plan, Secton 6.4, Page: 54. approved natve seed mix, plantng tree and/or shrubs, or additonal access control measures to assist in vegetaton establishment, survival and growth. 265 Environment Adams Lake Indian Band Measurable targets will be developed as part of the Post Constructon Environmental Monitoring ALIB IR No. 1.5.2a,c, During Operatons Superseded by NEB 151 Commitment addressed by CER Conditon 151, Not yet fled (on or before 31 January following the (PCEM) program, by which the success of mitgaton measures can be measured and the need for ALIB IR No. 1.6.2a,b Conditon frst, third, and ffh complete growing seasons afer completng fnal clean-up), Conditon 151 Post- adaptve measures identfed. constructon environmental monitoring reports. 266 Environment Adams Lake Indian Band Should the potental for serious harm to fsh that are part of, or support, a commercial, recreatonal, ALIB IR No. 1.3.21 Prior to Constructon Superseded by NEB 110 Commitment addressed by CER Conditon 110, Authorizaton(s) under paragraph 35(2)(b) of the or Aboriginal (CRA) fshery unless authorized by the Department of Fisheries and Oceans Canada Conditon Fisheries Act and Species at Risk permit(s) – pipeline, CER Filing ID C06333, DFO Authorizaton and (DFO) be confrmed either during the self-assessment or upon Natonal Energy Board (NEB) or DFO SARA Permit for Coquihalla, Secton 4.0, Page: 4 CER Filing ID C07943, DFO Authorizaton for review, Trans Mountain will develop an appropriate Conceptual Fish Ofset Plan (Ofset Plan). Brunete Tributaries, Secton 4.0, Page: 5, and DFO Authorizaton for Swif Creek, Secton 4.0, Page: 5. 267 Environment Adams Lake Indian Band Trans Mountain commits to developing and implementng a mitgaton strategy for potentally ALIB IR No. 1.5.7d Prior to Constructon Superseded by NEB 56 Commitment addressed by CER Conditon 56, Filing ID A90913, Conditon 56 Grizzly Bear Mitgaton afected grizzly bear populatons that have an elevated conservaton status. This grizzly bear Conditon Plan, Plan addressees this commitment. mitgaton strategy will include objectves consistent with current regulatory guidelines and will be developed in consultaton with the appropriate regulatory authorites. 268 Environment Adams Lake Indian Band Where required under the Canadian Environmental Assessment Act, 2012 and the Natonal Energy ALIB IR No. 1.6.09b During Operatons Superseded by NEB 151 Commitment will be addressed by CER Conditon 151, Not yet fled (on or before 31 January Board Filing Manual, follow-up programs will be developed to compare predicted efects of the Trans Conditon following the frst, third, and ffh complete growing seasons afer completng fnal clean-up), Mountain Expansion Project to post-constructon conditons. Conditon 151 Post-constructon environmental monitoring reports. 269 Environment Adams Lake Indian Band, Wherever feasible, watercourse crossing constructon actvites will be tmed to occur within the ALIB IR No. 1.3.13a, Prior to Constructon Superseded by NEB 43, 72 Commitment addressed by CER Conditon 43 and 72, CER Filing ID C00815, Conditon 43 Kwantlen First Naton, least risk biological windows to avoid causing serious harm to fshes and remain in compliance with ALIB IR No. 1.3.24b, Conditon Watercourse Crossing Inventory Update (Appendix A-D), CER Filing ID C08399 (Spread 4b update), Township of Langley the Fisheries Act. Kwantlen FN IR No. CER Filing ID C08687 (Spread 1 and 2 update), CER Filing ID C10251 (Spread 5a update). Complete 1.05.3, Langley IR documents address this commitment. CER Filing ID C01961, Conditon 72 Pipeline EPP, Secton 7.0, No. 1.01b Page: 27. 270 Environment Angelika Hacket, NEB Trans Mountain commits to common energy pipeline industry practces to minimize direct Hacket A IR No. Project Lifecycle Superseded by NEB 52, 53, 54, 55, 72, Commitment addressed by CER Conditon 52, 53, 54 CER Filing ID A84415, Conditon 52 Air greenhouse gas emissions during constructon and operaton of the pipeline. 1.2.1b, NEB IR No. Conditon 79, 85 Emissions Management Plan for WMT, Secton 5.0, Page: 29 Conditon 53, CER Filing ID A84416, 2.019b, NEB IR No. Fugitve Emissions Management Plan for WMT, Secton 8.0, Page: 16. Conditon 54, CER Filing ID 1.32, NEB IR No. A84796, Conditon 54 Fugitve Emissions Management Plan for Edmonton Terminal, Secton 6.0, 1.31, NEB IR No. Page: 8 to 9 Conditon 54, Fugitve Emissions Management Plan for Sumas and Burnaby Terminals, 1.33b Secton 6.0, Page: 8 to 9 Conditon 55, CER Filing ID A83059, Conditon 55, Fugitve Emissions Management Plan for Pump Statons, Secton 3.0, Page: 4 Conditon 72, CER Filing ID C01961, Conditon 72 Pipeline EPP, Secton 1.0, Page: 1 Conditon 79, CER Filing ID C08441, Conditon 79 Air Emissions Management Plan for Sumas and Burnaby Terminals, Secton 4.0, Page: 23 Conditon 79, CER Filing ID A84102, Air Emissions Management Plan for Edmonton Terminal, Secton 4.0, Page: 7 to 11. Conditon 85, CER Filing ID A85269, Conditon 85, Air Emissions Management Plan for BMT, Secton 5.0, Page: 8. 271 Environment Asini Wachi Nehiyawak Trans Mountain will notfy all relevant aboriginal groups regarding the development of the post AWNTB IR No. During Operatons Superseded by NEB 151 Commitment will be addressed by CER Conditon 151, Not yet fled (on or before 31 January Traditonal Band constructon monitoring Plan for reactvaton actvites. 1.05.1b Conditon following the frst, third, and ffh complete growing seasons afer completng fnal clean-up), Conditon 151 Post-constructon environmental monitoring reports. 272 Environment Sto:lo Collectve Trans Mountain welcomes the opportunity to discuss the establishment of infrastructure and Sto:lo Collectve Prior to Constructon Superseded by NEB 98 Commitment addressed by CER Conditon 98, CER Filing ID C00105, Conditon 98 Plan for capacity for Sto:lo to implement on-going processes of air and water quality monitoring. Recommendaton Conditon Indigenous Group Partcipaton in Constructon Monitoring, Entre Plan outlines Trans Mountain's #53 engagement with Indigenous Groups and the Scope of the Indigenous Monitors. 273 Environment BC Nature and Nature Trans Mountain will provide an update on routng in Surrey Bend Regional Park, Colony Farms and BC Nature Nature Prior to Constructon Complete Technical Update No. 1, CER Filing ID A3Z8F9, Figure 2.2-13, Figure 2.2-14A, Figure 2.2-14B, Canada Brunete River Greenway in Technical Update No. 1, to be submited to the NEB in Q3 2014. The Cda IR No. 1.16a Technical Update No. 1, CER Filing ID A3Z8G0, Figure 2.2-15. update will include additonal informaton and a map of the proposed and alternatve corridors being considered.

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274 Environment BC Nature and Nature Trans Mountain is supportve of a collaboratve approach to long-term monitoring for marine birds BC Nature Nature Project Lifecycle In Progress Proof of completon will be the meetng minutes with Environment and Climate Change Canada Canada, City of Burnaby and will endeavour to meet with Environment Canada (EC) to discuss the potental for development Cda IR No. 1.12b, where potental for development of a long-term monitoring program as a partnership with others is of a long-term monitoring program as a partnership with others. City Burnaby IR No. discussed. 1.27.07c 277 Environment BC Parks, NEB All access roads and trails would be reclaimed or deactvated and revegetated in consultaton with BC Parks boundary During Constructon Superseded by NEB 72 Commitment is addressed by CER Conditon 72, CER Filing ID A86570, Secton 5.4, Page: 22 to 23. BC Parks and other stakeholders. adjustment Conditon applicaton (August 2014) 279 Environment BC Parks, NEB At pre-determined locatons where vegetaton is disturbed by constructon, the use of plant BC Parks boundary During Constructon Superseded by NEB 72 Commitment addressed by CER Conditon 72, CER Filing ID A86570, Conditon 72 Reclamaton transplants may be considered. Optons for woody species revegetaton include installaton of adjustment Conditon Management Plan, Secton 5.0, 5.9 Page: 19, 30. nursery grown plant plugs, installaton of locally sourced dormant woody species transplants, and applicaton (August seeding of natve grass. 2014) 280 Environment BC Parks, NEB During constructon, Trans Mountain will ensure that all equipment arriving on site is clean and free BC Parks boundary Prior to Constructon Superseded by NEB 72 Commitment addressed by Conditon 72, CER Filing ID C01961, Conditon 72 Pipeline EPP, Secton of soils and plant materials. Where areas of concern for invasive plant species are identfed, adjustment Conditon 7.0, Page: 25. machine clean-of statons will be installed to mitgate for the potental for the spread of weeds. applicaton (August 2014) 284 Environment BC Parks, NEB Seed mixes will be developed in consultaton with the BC Parks conservaton specialist and will BC Parks boundary Prior to Constructon Superseded by NEB 72 Commitment addressed by CER Conditon 72, CER Filing ID A86570, Conditon 72 Reclamaton consist of species natve to the park. adjustment Conditon Management Plan, Secton 6.2 Page: 42. applicaton (August 2014) 285 Environment BC Parks, NEB Temporary fencing that will protect newly seeded and planted areas from livestock grazing or BC Parks boundary During Constructon Superseded by NEB 72 Commitment addressed by CER Conditon 72, CER Filing ID C01961, Conditon 72 Pipeline EPP, unauthorized access may be necessary at some sites in the Project Footprint. The need, type and adjustment Conditon Secton 14.3, Page: 87. extent of the fencing will be determined in consultaton with the land owner or land manager. applicaton (August 2014) 286 Environment John Black Trans Mountain will conduct a wildlife survey at the Burnaby Terminal prior to clearing and Black J IR No. 1.2.1a During Constructon Superseded by NEB 78 Commitment addressed by CER Conditon 78, CER Filing ID C06991, Conditon 78 Facilites EPP, constructon actvites. Conditon Secton 6.0, Page 6-2. 287 Environment Burnaby Residents Trans Mountain has commited to fling the detailed human health risk assessment with the Natonal BROKE IR No. 1.7e, Prior to Constructon Complete The Human Health Risk Assessment of Westridge Marine Terminal Technical Report was fled with Opposing Kinder Morgan Energy Board on June 16, 2014. BROKE IR No. 1.3c, the Natonal Energy Board on June 16, 2014 (Intrinsik 2014), CER Filing IDs A3Y1F4 and A3Y1F5. Expansion - BROKE, City of City Burnaby IR No. Burnaby, Tsleil-Waututh 1.01.09d, Tsleil- Naton Waututh Naton IR No. 1.4.2b 288 Environment Canadian Parks and An afected area analysis for Old Growth Management Areas (OGMAs) has been completed and will CPAWS IR No. 1.2.1 Prior to Constructon Superseded by NEB 76 Commitment addressed by CER Conditon 76, CER Filing ID A84120, Conditon 76 Old Growth Wilderness Society - BC be updated when the constructon right-of-way is fnalized . Trans Mountain is working with the BC Conditon Management Areas Mitgaton and Replacement Plan, Secton 1.4, 6.0, Page: 5, 19. Chapter Ministry of Forests, Lands and Natural Resource Operatons to complete OGMA mitgaton commitments. 289 Environment Canadian Parks and Trans Mountain will fle the spoted owl mitgaton plan with the NEB 6 months prior to commencing NEB IR No. 1.46c, Prior to Constructon Superseded by NEB 38 Commitment addressed by CER Conditon 38, CER Filing ID A85803, Conditon 38 Sowaqua Spoted Wilderness Society - BC constructon in Wildlife Habitat Areas. CPAWS IR No. 1.2.4, Conditon Owl Mitgaton Plan, Document covers this commitment. Chapter, NEB, New NDP IR No. 1.1.8f Democratc Party of Canada 290 Environment Canadian Parks and Trans Mountain will provide an update on consultaton related to the mitgaton strategy for the NEB IR No. 1.47c, Prior to Constructon Superseded by NEB 56 Commitment addressed by CER Conditon 56, Filing ID A90913, Conditon 56 Grizzly Bear Mitgaton Wilderness Society - BC North Cascades Grizzly Bear Populaton Unit with the fling of NEB IR Round 2 responses in Q3 2014. CPAWS IR No. 1.2.4, Conditon Plan, Appendix A, Page: A-4 to A-6. Chapter, NEB, New NDP IR No. 1.1.8f Democratc Party of Canada 291 Environment Canadian Parks and Trans Mountain will provide details of mitgaton strategies for Lewis’s woodpecker and Williamson’s NEB IR No. 1.45c, Prior to Constructon Superseded by NEB 44 Commitment addressed by CER Conditon 44, CER Filing ID A90906, Conditon 44 Williamson's Wilderness Society - BC sapsucker in NEB IR Round 2 responses in Q3 2014. CPAWS IR No. 1.2.4, Conditon Sapsucker and Lewis’s Woodpecker Mitgaton and Habitat Restoraton Plan. Entre plan addresses Chapter, NEB, New NDP IR No. 1.1.8f this commitment. Democratc Party of Canada 292 Environment Canadian Parks and Trans Mountain will provide results of meetng with Environment Canada (EC) and BC Ministry of CPAWS IR No. 1.2.4, Prior to Constructon Complete Conditon 44, Williamson’s Sapsucker and Lewis’s Woodpecker Mitgaton and Habitat Restoraton Wilderness Society - BC Forests, Lands and Natural Resource Operatons (MFLNRO) related to Lewis's woodpecker and NEB IR No. 1.45b, Plan, CER Filing ID A90906, Appendix A, Table A-2 and Table A-3, Page: A-3 to A-4, A-6. Chapter, NEB, New Williamson's sapsucker during NEB IR Round 2. NDP IR No. 1.1.8f Democratc Party of Canada 293 Environment Canadian Parks and Trans Mountain will provide results of meetng with Environment Canada (EC) during NEB IR Round NEB IR No. 1.44c Prior to Constructon Superseded by NEB 44 Commitment addressed by CER Conditon 44, CER Filing ID A90911 Conditon 44 Pacifc Water Wilderness Society - BC 2. and d Conditon Shrew Mitgaton and Habitat Restoraton Plan Appendix A (Table A-2 and Table A-3) Page: A-4 to A- Chapter, NEB, New 10. CER Filing ID A90905, Conditon 44 Coastal Giant Salamander Mitgaton and Habitat Restoraton Democratc Party of Canada Plan, Appendix A (Table A-2 and Table A-3), Page: A-2 to A-5. CER Filing ID A85074, Conditon 44 Townsend’s Mole Mitgaton and Habitat Restoraton Plan, Appendix B (Table B-2 and Table B-3), Page: B-4 to B-6. 294 Environment Canadian Parks and Trans Mountain will update the Project Pipeline Environmental Protecton Plan with additonal site- CPAWS IR No. 1.2.4, Prior to Constructon Superseded by NEB 75 Commitment addressed by CER Conditon 75, CER Filing ID C01961, Pipeline EPP (Appendix G Wilderness Society - BC specifc mitgaton measures for watercourses identfed as critcal Nooksack dace habitat, to be fled NEB IR No. 1.52d, Conditon Nooksack Dace (NDC) and Salish Sucker (SSU) Management Plan), Secton 8.1 in Appendix G, Page: Chapter, NEB, New at least 90 days prior to constructon. NEB IR No. 1.52e, G-132 to G-143. Democratc Party of Canada NDP IR No. 1.1.8f

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295 Environment Canadian Parks and If the results of the Stage 2 watercourse assessment change any of the conclusions presented in the CPAWS IR No. 1.2.4, Prior to Constructon Complete Conditon 43 Watercourse Crossing Inventory, CER Filing ID A82366, A82369, A82390, A82392, Wilderness Society - BC Environmental and Socio-Economic Assessment (Volume 5A of the Applicaton), Trans Mountain will NEB IR No. 1.52a, A82395, A82397, A82400, A82405, A82409, Updated Conditon 43 Appendix A-D, CER Filing ID Chapter, Catherine Jensen, submit an update to the NEB in Q4 2014. NEB IR No. 1.52b, C00815. City of Coquitlam, NEB, NEB IR No. 1.52c , Neskonlith Indian Band, NEB IR No. 1.52d, New Democratc Party of NEB IR No. 1.52e, Canada, Pro Informaton Pro NEB IR No. 1.53a, Environment United People NEB IR No. 1.53b, Network NEB IR No. 1.53c NEB IR No. 1.53d, NEB IR No. 1.53e, NEB IR No. 1.53f, NEB IR No. 1.53g, NEB IR No. 1.53h, NEB IR N 296 Environment City of Abbotsford Abbotsford – Sumas Aquifer will be assessed as a high consequence area. Technical Update Prior to Constructon Complete Trans Mountain Pipeline (TMPL) Risk Results dated August 11, 2014, CER Filing ID A4A4E9, A4A4F0, No. 1 and Atachment A, PDF Page: 39. Consultaton Update No. 2 - Part 5 Update Stakeholder Engagement Part 01. Table 1.6.3-1 297 Environment City of Abbotsford, NEB Vedder Aquifer will be assessed as a high consequence area. Technical Update Prior to Constructon Complete Trans Mountain Pipeline (TMPL) Risk Results dated August 11, 2014, CER Filing ID A4A4E9, A4A4F0, No. 1 and Atachment A, PDF Page: 38 to 39. Consultaton Update No. 2 - Part 5 Update Stakeholder Engagement Part 01. Table 1.6.3-1 298 Environment City of Burnaby A Post-Constructon Environmental Monitoring program will be conducted following constructon to City Burnaby IR No. During Operatons Superseded by NEB 151 Commitment will be addressed by CER Conditon 151, Not yet fled (on or before 31 January monitor any potental efects of the actvites on adjacent vegetaton. 1.38.02b Conditon following the frst, third, and ffh complete growing seasons afer completng fnal clean-up), Conditon 151 Post-constructon environmental monitoring reports. 300 Environment City of Burnaby If contaminated soil is encountered during constructon, Trans Mountain will implement the City Burnaby IR No. Prior to Constructon Superseded by NEB 72, 78, 81 Commitment addressed by CER Conditon 72, 78, 81. CER Filing ID C01961, Conditon 72 Pipeline Contaminaton Discovery Contngency Plan as identfed in Secton 5.2.4 of Volume 5A and Secton 1, 1.43.03f Conditon EPP, Secton 1.0 of Appendix B, Page: B-3 CER Filing ID C06991, Conditon 78 Facilites EPP, Secton Appendix B of Volume 6B. 1.0 of Appendix B, Page: B-3 CER Filing ID C08265, Conditon 81 Westridge Marine Terminal EPP, Secton 1.0 of Appendix B, Page: B-3. 301 Environment City of Burnaby Trans Mountain is completng additonal dispersion modelling to inform engineering design related City Burnaby IR No. Prior to Constructon Complete Trans Mountain met with the LFVAQCC on September 25, 2014 and November 13, 2014 to discuss to terminal operatons during product loading and unloading. This informaton will be provided in 1.28.02a, City the Project. Members of the LFVAQCC include Environment Canada, the Province of Britsh the Technical Update No. 1 in Q3 2014. Burnaby IR No. Columbia (BC Ministry of the Environment), Metro Vancouver, Port Metro Vancouver and the Fraser 1.28.03a, FVRD IR Valley Regional District. Responses to Lower Fraser Valley Air Quality Coordinatng Commitee No. 1.02a, FVRD IR Informal Informaton Requests from September 25 and November 13, 2014 Meetngs Air Quality, No. 1.09a, GoC EC IR Human Health Risk and Marine Spill Assessments Trans Mountain Expansion Project, CER Filing ID No. 1.063, GoC EC IR A64686. No. 1.096c, GoC EC IR No. 1.103a, Living Oceans IR No. 1.21a, Living Oceans IR No. 1.58b, Metro Vancouver IR No. 1.1.6.01b, Metro Vancouver IR No. 1.1.6.02a, Metro Vancouver IR No. 1.1.6.03a, Metro Vancouver IR No. 1.1.6.03b, Metro Vancouver IR No. 1.1.6.03h 302 Environment City of Burnaby Trans Mountain will add a statement to the Environmental protecton plans for the Pipeline, City Burnaby IR No. Prior to Constructon Complete Proof of Completon for Pipeline and Westridge: CER Conditons 72, 78, 81. CER Filing ID C01961, Facilites and Westridge Marine Terminal components of the Trans Mountain Expansion Project that 1 - 20.04b Conditon 72 Pipeline EPP, Secton 6.0, Page 17. CER Filing ID C05815, Conditon 78 Temporary it will contnue to work with local municipalites to develop weed control plans that will be required Constructon Lands and Infrastructure EPP, Secton 6.0, Page 17. CER Filing ID C08265, Conditon 81 for the Project. Westridge Marine Terminal EPP, Secton 7.0, Page 7-2. Proof of Completon for Facilites will be updated following fling.

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303 Environment City of Burnaby Trans Mountain will adopt all mitgaton measures recommended in Technical Report 5C-3 of Volume City Burnaby IR No. During Constructon Superseded by NEB 74, 80, 86, 141 Commitment addressed by CER Conditon 74, 80, 86, 141. CER Filing IDs C09038, C08036, C06875, 5C, Terrestrial Noise and Vibraton Technical Report (RWDI December 2013). 1.27.02a Conditon C06343, C05703, C05553, C04017, C02395, C01524, C00856, C00689, C00377, A84115, A84761, Conditon 74 HDD Noise Management Plan, Plans address this commitment. CER Filing ID C06928, Conditon 80 Terminals Constructon Noise Management Plan, Plan addresses this commitment. Conditon 86, CER Filing ID C05211, Conditon 86 BMT Constructon Noise Management Plan, Plan addresses this commitment Commitment will be addressed by CER Conditon 141, Not yet fled (within 3 months afer commencing operatons), CER Conditon 141 Post-constructon noise surveys. 304 Environment City of Burnaby Trans Mountain will commit to supplying Living Oceans with the hourly meteorological data that has City Burnaby Prior to Constructon Complete Proof of completon will be the transmital records of the data to Living Oceans. been collected since the commissioning of the Automated Monitoring System (SAM) units at the Atachment - Table Burnaby Terminal by August 15th, 2014. 1.04.14h 305 Environment City of Burnaby Trans Mountain will prepare an Air Emissions Management Plan for the Westridge Marine Terminal City Burnaby IR No. Prior to Constructon Superseded by NEB 52 Commitment addressed by CER Conditon 52, CER Filing ID A84415, Air Emissions Management Plan as per NEB Draf Conditon No. 19 (August 2015) which will involve installing a new ambient air 1.04.14h, City Conditon for Westridge Marine Terminal, Plan addresses this commitment. quality monitoring staton. Burnaby IR No. 1.28.01c, City Burnaby IR No. 1.03.07f, City Burnaby IR No. 2.085, City Burnaby IR No. 2.086, NEB IR No. 1.35a, DNV IR No. 1.5.03d, Metro Vancouver IR No. 1.1.6.03i, FVRD IR No. 2.19. 306 Environment Sto:lo Collectve Trans Mountain welcomes the opportunity to discuss the establishment of infrastructure and Sto:lo Collectve Project Lifecycle Superseded by NEB 98 Commitment addressed by CER Conditon 98, CER Filing ID C00105, Conditon 98 Plan for capacity for Sto:lo to implement on-going processes of air and water quality monitoring. Recommendaton Conditon Indigenous Group Partcipaton in Constructon Monitoring, Entre Plan outlines Trans Mountain's #53 engagement with Indigenous Groups and the Scope of the Indigenous Monitors. 309 Environment District of North Vancouver Trans Mountain will install a new ambient air quality monitoring staton at the Westridge Marine District of North Prior to Constructon Superseded by NEB 52 Commitment addressed by CER Conditon 52, CER Filing ID A84415, Air Emissions Management Plan Terminal as per NEB Draf Conditon No. 21 (April 2014). Vancouver IR No. Conditon for Westridge Marine Terminal. Conditon 52b addresses this commitment. Locatons shown in 1.5.03d Figure 1, Page: 5. 310 Environment Environment Canada Trans Mountain proposes to meet with Environment Canada (EC) and the other intervenors involved Environment Canada Prior to Constructon Complete Trans Mountain met with the LFVAQCC on September 25, 2014 and November 13, 2014 to discuss in the Lower Fraser Valley Air Quality group who are interested, in Q3 2014 to clarify assumptons Atachment - Table the Project. Members of the LFVAQCC include Environment Canada, the Province of Britsh and methodology for an updated marine air quality/greenhouse gas assessment using the Marine 1.058 Columbia (BC Ministry of the Environment), Metro Vancouver, Port Metro Vancouver and the Fraser Emission Inventory Tool (MEIT) to be conducted in 2015. (IR: EC requests that the Proponent re- Valley Regional District. Responses to Lower Fraser Valley Air Quality Coordinatng Commitee evaluate the Base Case with berth and anchorage emissions included.) Informal Informaton Requests from September 25 and November 13, 2014 Meetngs Air Quality, Human Health Risk and Marine Spill Assessments Trans Mountain Expansion Project, CER Filing ID A64686. 311 Environment Environment Canada, Metro Trans Mountain recognizes that updatng the photochemical modeling using the updated Marine Environment Prior to Constructon Complete Reply Evidence Appendix 33C - Air Quality Modelling, Updated Community Mult-scale Air Quality Vancouver Emission Inventory Tool (MEIT) would be valuable to Environment Canada (EC), Metro Vancouver Canada- Atachment (CMAQ) Photochemical Modelling for the TMEP, CER Filing ID A4S7I6. (MV) and Fraser Valley Regional District (FVRD) and commits to undertaking a similar modeling efort - Table 1.076a) but using the updated MEIT when it is available. This update using the Community Mult-Scale Air Quality model would not include all of the additonal scenarios (i.e., another ozone episode, typical ozone episode under other meteorological conditons, seasonal and annual tme periods) jointly requested by EC, MV and FVRD. 313 Environment Fraser Valley Regional Trans Mountain is commited to conductng water quality monitoring during constructon. FVRD IR No. 1.27b During Constructon Superseded by NEB 72 Commitment addressed by CER Conditon 72, CER Filing ID C01961 Conditon 72 Pipeline District Conditon Environmental Protecton Plan, Appendix G, Water Quality Monitoring secton, Page: G-143. 314 Environment Fraser Valley Watersheds In the event an amphibian salvage is needed, a specifc plan will be developed for that locaton. FVWC IR No. 1.2.4 During Constructon Superseded by NEB 72 Commitment addressed by CER Conditon 72, CER Filing ID C01961 Conditon 72 Pipeline Coaliton Conditons of the amphibian salvage permit will be adhered to. Conditon Environmental Protecton Plan, Secton 14.3, Page: 85. 315 Environment Environment Canada, NEB If a wetland is determined to not be on the trajectory to returning to pre-constructon functonal NEB IR No. 2.051b, Prior to Constructon Superseded by NEB 41 Commitment addressed by CER Conditon 41, CER CER CER Filing ID A90909, Conditon 41 Wetland conditon at the end of the Wetland Functon Post-constructon Monitoring Program (i.e., post- GoC EC IR No. 2.051 Conditon Survey and Mitgaton Plan, Secton 5.3, 7.1, 7.2.3, Page: 29, 42, 45 constructon functonal conditon category is less than the pre-constructon category), Trans Mountain will discuss the next steps with the NEB and Environment Canada (EC) to achieve the goal of “no net loss” of wetland functon. 316 Environment Environment Canada Trans Mountain is commited to working with provincial regulatory agencies, tenure holders, EC P-IR No. 1.16 Prior to Constructon Superseded by NEB 37 Commitment addressed by CER Conditon 37, CER Filing ID A85071, Conditon 37a Preliminary Aboriginal communites and other stakeholders to identfy opportunites to address potental Conditon Caribou Habitat Restoraton Plan, Secton 4.0 and Appendix B Page: 14, B-1 to B-13. residual Project efects on southern mountain caribou habitat. 318 Environment Environment Canada Trans Mountain will meet with Environment Canada (EC) in April 2014 to discuss a collaboratve, EC P-IR No. 1.19 Prior to Constructon Complete Trans Mountain met with Environment Canada to discuss long term monitoring program for industry-wide approach to the development of a long-term monitoring program for marine birds. ofshore birds in the Strait of Juan de Fuca in on May 23, 2017. 320 Environment Environment Canada Trans Mountain will ensure Peacock vinyl lichen (Leptogium polycarpum) is included in Table B3 GoC EC IR No. 1.048 Prior to Constructon No Longer Conditon 40, CER Filing ID A90904, Rare Plants and Rare Ecological Communites Management Plan, which lists potental rare plant and lichen species for the BC component of the proposed project. Applicable Secton 4.1, Page: 17. Volume 5C, ESA - Biophysical Technical Reports Project Vegetaton Technical Report, CER Filing ID A56012, Secton 4.3.2, Table 4.3.2.1 Federal Species of Concern Along the BC Porton of the Proposed Pipeline Corridor, Page: 4-25.

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321 Environment Environment Canada Trans Mountain will contnue to consult with Environment Canada (EC) regarding recommendatons GoC EC IR No. 1.046 Prior to Constructon Superseded by NEB 40 Commitment addressed by CER Conditon 40, Filing ID A90904, Conditon 40 Rare Ecological and site-specifc mitgaton for Species at Risk Act (SARA) listed vegetaton species that exist along Conditon Community and Rare Plant Populaton Management Plan, Secton 3.3.2.2, 5.1, Page: 13, 23. the Project footprint. 322 Environment Environment Canada Where conficts in mitgaton measures such as tming windows may arise, Trans Mountain will GoC EC IR No. 1.054 Prior to Constructon Superseded by NEB 37, 38, 44, 56 Commitment addressed by CER Conditon 37, 38, 44, 56, Conditon 37, Filing ID A85071, Conditon consult with the appropriate provincial regulatory agencies to determine practcal and efectve Conditon 37a Preliminary Caribou Habitat Restoraton Plan, Appendix B, Page: B-3 to B-10; CER Conditon 38, mitgaton. CER Filing ID A85803, Conditon 38 Sowaqua Spoted Owl Mitgaton Plan, Appendix B, Page: B-3 to B-7; Conditon 44, CER Filing ID A90910, Conditon 44 Western Screech-Owl Mitgaton and Habitat Restoraton Plan, Appendix A, Page: A-3 to A-8. CER Filing ID A86567, American Badger Mitgaton and Habitat Restoraton Plan, Appendix A, Page: A-3 to A-9. CER Filing ID A90911 Conditon 44 Pacifc Water Shrew Mitgaton and Habitat Restoraton Plan Appendix A, Page: A-4 to A-10. CER Filing ID A90905, Conditon 44 Coastal Giant Salamander Mitgaton and Habitat Restoraton Plan, Appendix A, Page: A-2 to A-5. CER Filing ID A86567, Conditon 44 Townsend’s Mole Mitgaton and Habitat Restoraton Plan, Appendix B, Page: B-4 to B-6; CER Filing ID A90906, Conditon 44 Williamson’s Sapsucker and Lewis’s Woodpecker Mitgaton and Habitat Restoraton Plan, Appendix A, Page: A-3 to A-9; CER Filing ID A90907, Conditon 44 Oregon Spoted Frog Mitgaton and Habitat Restoraton Plan, Appendix B, Page: B-3 to B-7; CER Filing ID A86567, Conditon 44 Barn Owl Mitgaton and Habitat Restoraton Plan, Appendix A, Page: A-3 to A-6; CER Filing ID A86567, Conditon 44 Great Basin Spadefoot Mitgaton and Habitat Restoraton Plan, Appendix A, Page: A-4 to A-8; CER Filing ID A86567, Conditon 44 Oregon Forestsnail Mitgaton and Habitat Restoraton Plan, Appendix A, Page: A-3 to A-7 CER Filing ID A86567, Conditon 44 Western Ratlesnake and Great Basin Gophersnake Mitgaton and Habitat Restoraton Plan, Appendix A, Page: A-3 to A-6; CER Conditon 56, CER Filing ID A90913, Conditon 56 Grizzly Bear Mitgaton Plan, Appendix A, Page: A-4 to A-6. 323 Environment Natural Resources Canada Environmental Inspectors will log the locatons of highly vulnerable aquifers where mitgaton GoC NRCan IR No. During Constructon Superseded by NEB 72 Commitment addressed by CER Conditon 72 EAS/RSMT, CER Filing ID C00470, Spread 1, Secton 7.2, measures are needed. These locatons will be documented in the Constructon As-Built report. 1.04.1 Conditon Page: 18, CER Filing ID C00475, Spread 2, Secton 7.2, Page: 42. CER Filing ID C05272, Spread 3/4a, Secton 7.2, Page: 49,. Filing ID C03930, Spread 4b, Secton 7.2, Page: 23. CER Filing ID C04634, Spread 5a: Secton 7.2, Page 68, CER Filing ID C05600, Spread 5b: Secton 7.2, Page 43, Spread 6: Not yet fled with updated data, CER Filing ID C03931, Spread 7: Secton 7.2, Page 36. 324 Environment Natural Resources Canada In the event that highly decayed logs with suitability to provide wildlife habitat are encountered, GoC NRCan IR No. Prior to Constructon Superseded by NEB 44 Commitment addressed by CER Conditon 44, CER Filing ID A90906, Conditon 44 Williamson’s they will be set aside during constructon and then replaced onto the right-of-way during fnal clean- 1.06.0 Conditon Sapsucker and Lewis’s Woodpecker Mitgaton, Table 5, Page: 29 CER Filing ID A85185, Conditon 44 up, where possible. Western Ratlesnake and Great Basin Gopher snake Mitgaton and Habitat Restoraton Plan, Table 5, Page: 24. Oregon Forest snail Mitgaton and CER Filing ID A85185, Conditon 44 Habitat Restoraton Plan, Table 5, Page: 28. 326 Environment Parks Canada Agency The restoraton program for works conducted within Jasper Natonal Park that cause disturbance to GoC Parks IR No. Prior to Constructon Superseded by NEB 72 Commitment addressed by CER Conditon 72, CER Filing ID A86570, Conditon 72 Reclamaton soil and vegetaton will be based on classifcatons according to the soil and vegetaton types as 1.2.3 Conditon Management Plan, Appendix I, Page: I-1 to I-12. described in the Ecological Land Classifcaton system for Jasper Natonal Park. 327 Environment Parks Canada Agency Trans Mountain is commited to monitor specifc issues beyond the fve years in Jasper Natonal GoC Parks IR No. Project Lifecycle Complete The fnal version of the MODERs are in Appendix F of the Rev 3 Reactvaton EPP. To be fled with the Parks if Environmental issues warrant. Trans Mountain is commited to the standards outlined in the 1.2.7 CER. Line Leaseholders Working Group. 328 Environment Parks Canada Agency Trans Mountain is commited to the Management Objectve / Desired End Result with respect to GoC Parks IR No. Prior to Constructon Superseded by NEB 72 Commitment addressed by CER Conditon 72, Not yet fled, CER Conditon 72, Reactvaton EPP, Heritage Resources for reactvaton actvites in Jasper Natonal Park. 1.3.3 Conditon Appendix F, Page: F-1 to F-10. 329 Environment Parks Canada Agency Trans Mountain is commited to working with the Parks Canada Agency in developing a set of GoC Parks IR No. Prior to Constructon Superseded by NEB 72 Commitment addressed by CER Conditon 72, Not yet fled, CER Conditon 72, Reactvaton EPP, Management Objectves / Desired End Results that addresses commemoratve integrity for the 1.3.1 Conditon Appendix F, Page: F-1 to F-10. proposed reactvaton actvites on the Trans Mountain Expansion Project. 330 Environment Metro Vancouver Trans Mountain commits to meet with Metro Vancouver to discuss the methodology and results Metro Vancouver Prior to Constructon Complete A meetng took place on November 13, 2014 at the Environment Canada Ofce in Vancouver. related to meetng applicable ambient air quality objectves. Atachment - Table Documentaton of correspondence with Metro Vancouver to discuss air quality were provided to 1.1.6.04b the CER as part of CVA2021-395 Round 1, IR#7. 331 Environment Metro Vancouver Trans Mountain will install a new ambient monitoring staton at the Westridge Marine Terminal in Metro Vancouver IR Prior to Constructon Superseded by NEB 52 Commitment is addressed by CER Conditon 52, CER Filing ID A84415, Conditon 52 Air Emissions 2015 to meet the requirements of NEB Draf Conditon 21 (April 2014) which requires the methods No. 1.1.6.03i Conditon Management Plan for WMT, Secton 3.2, Page: 6. On April 8, 2021, Trans Mountain fled a leter with and schedule for ambient monitoring of contaminants of potental concern in air including the CER requestng confrmaton that Conditon 52 has overtaken and replaced Commitment 331, partculate mater, carbon monoxide, nitrogen dioxide, sulphur dioxide, hydrogen sulphide and with carbon monoxide appropriately excluded from the Air Emissions Management Plan for the volatle organic compounds. Westridge Marine Terminal (Filing ID C12320). 332 Environment Sto:lo Collectve Trans Mountain welcomes the opportunity to discuss infrastructure and capacity for Sto:lo heritage Sto:lo Collectve Prior to Constructon Superseded by NEB 98 Commitment addressed by CER Conditon 98, CER Filing ID C00105, Conditon 98 Plan for resource management technical involvement as constructon monitors, to ensure protecton of sites, Recommendaton Conditon Indigenous Group Partcipaton in Constructon Monitoring, Secton 4.5, Page: 10. and to ensure Sto:lo practces are maintained. #54 333 Environment Township of Langley Trans Mountain will ensure that all constructon equipment is free of invasive species seeds or debris Langley IR No. 1.09c Prior to Constructon Superseded by NEB 45, 72 Commitment addressed by CER Conditon 45, 72, CER Filing ID A86546, Conditon 45 Weed and when it arrives on the constructon right-of-way. General pipeline constructon mitgaton measures Conditon Vegetaton Management Plan, Secton 5.2, Page 16. CER Filing ID C01961, Conditon 72 Pipeline EPP, regarding weeds and vegetatve debris that may be applicable to the pipeline throughout all phases Secton 7.0, Page 25. of constructon are outlined in the Applicaton, Secton 7.0 of the Pipeline Environmental Protecton Plan (Volume 6B) as well as the Weed and Vegetaton Management Plan (Secton 14.0 of Appendix C of Volume 6B). These mitgaton measures will be implemented, as warranted, by Trans Mountain, its Contractors and subcontractors prior to and during constructon.

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334 Environment Tsartlip First Naton Archaeological heritage resource informaton received from partcipatng communites will be Tsartlip FN IR No. Prior to Constructon Superseded by NEB 72, 78, 81, 100 Commitment addressed by CER Conditon 72 and 100, CER Filing ID C01853, Conditon 100 Heritage reviewed in order to confrm mitgaton measures including those found in the Environmental 1.2.7.1 Conditon Resources and Sacred and Cultural Sites Plan, Secton 4.0 , Page: 17 to 23, CER Filing ID C04634, CER Protecton Plans (Volume 6B, 6C and 6D). Filing ID C05600, CER Filing ID C03931, Conditon 72 EAS/RSMT for Spreads 5a, 5b, 6 (not yet fled), 7, Secton 3.0 (RSMT), Spread 5a: Page 10, Spread 5b: Page 7 to 9, Spread 6: Not yet fled, Spread 7: Page 8. CER Filing ID C05815, Conditon 78 Temporary Constructon Lands and Infrastructure, Appendix D, Page: D-1 to D-9 CER Filing ID C06991, Conditon 78 Facilites EPP, Appendix D, Page: D- 1 to D-9. CER Filing ID C08265, Conditon 81 Westridge Marine Terminal EPP, Appendix D, Page: D-1. 335 Environment Upper Nicola Band An Avian Protecton Plan will be prepared for the Project that will provide more detail on the Upper Nicola Band - Prior to Constructon No Longer An avian protecton plan was proposed to mitgate the efects of powerlines on avian species. Given potental efects and proposed mitgaton measures. Atachment - Table Applicable that the powerlines are not under consideraton for the Project, this commitment no longer applies. 1.16fUpper Nicola EAO Leter 313339 dated January 18, 2018. Band IR No. 1.16j (Filing ID: A3Y3V1) 337 Environment Vancouver Fraser Port Trans Mountain will complete post-constructon noise monitoring at the Westridge Marine Terminal PMV IR No. 1.3.2, During Operatons Superseded by NEB 141 Commitment addressed by CER Conditon 141, Not yet fled (must be fled within 3 months afer Authority DBA Port Metro as per NEB Draf Conditon No. 57 (April 2014) relatng to post-constructon noise surveys at select Cameron School Conditon commencing operatons), Conditon 141 Post-constructon Noise Surveys. Vancouver terminals. Parents IR No. 1.2.2a, PMV IR No. 1.3.2, Miller IR No. 2.03b 338 Environment NEB An estmaton of old growth areas impacted by the Project will be provided in the frst half of 2015 NEB IR No. 2.053e Prior to Constructon Superseded by NEB 76 Commitment addressed by CER Conditon 76, CER Filing ID A84120, Conditon 76 Old Growth once the constructon right-of-way and footprint is further delineated. Conditon Management Areas Mitgaton and Replacement Plan, Secton 3.0, 6.0, Page: 8 to 15. 339 Environment NEB Appendix M of the Pipeline Environmental Protecton Plan will be updated 90 days prior to NEB IR No. 1.18e, Prior to Constructon Superseded by NEB 72 Commitment addressed by CER Conditon 72, CER Filing ID C00470 (Spread 1), RSMT Secton 2.0, commencing constructon. NEB IR No. 1.18d Conditon Page 6. CER Filing ID C00475 (Spread 2), RSMT Secton 2.0, Page: 7. CER Filing ID C05272 (Spread 3/4a), RSMT Secton 2.0, Page: 7. CER Filing ID C03930 (Spread 4b), RSMT Secton 2.0, Page: 6. CER Filing ID C04634 (Spread 5a), RMST Secton 2.0, Page: 8 to 9. CER Filing ID C05600 (Spread 5b), RSMT Secton 2.0, Page: 6. CER Filing ID C03931 (Spread 7), RSMT Secton 2.0, Page 6. 340 Environment NEB Appropriate mitgaton (e.g., scheduling to avoid periods when birds congregate, protectve bufers) Technical Update During Constructon Superseded by NEB 72, 78, 81 Commitment addressed by CER Conditon 72, 78, 81. CER Filing ID C01961, Conditon 72 Pipeline will be implemented to reduce the potental Project efects on migratory birds. No. 1 and Conditon EPP, Secton 7.0, Page: 19. Conditon 72, CER Filing ID C00470 (Spread 1), RSMT Secton 4.2, Page 8. Consultaton Update CER Filing ID C00475 (Spread 2), RSMT Secton 4.2, Page: 10. CER Filing ID C05272 (Spread 3/4a), No. 2 Part 5, Part 01, RSMT Secton 4.2, Page: 11. CER Filing ID C03930 (Spread 4b), RSMT Secton 4.2, Page: 8. CER Filing Table 1.6.3-1 ID C04634 (Spread 5a), RMST Secton 4.2, Page: 21. CER Filing ID C05600 (Spread 5b), RSMT Secton 4.2, Page: 19. CER Filing ID C03931 (Spread 7), RSMT Secton 4.2, Page 17. CER Filing ID C06991, Conditon 78 Facilites EPP, Secton 6.0, Appendix D, Page: 6-2, Table D-1 CER Filing ID C08265, Conditon 81 Westridge Marine Terminal EPP, Secton 6.0, Appendix D, Page: 6-3, Table D-1. 341 Environment NEB Appropriate mitgaton (e.g., soil handling, erosion control) and monitoring actvites will be Pre-Applicaton During Constructon Superseded by NEB 72 Commitment addressed by CER Conditon 72, CER Filing ID C01961, Conditon 72 Pipeline EPP, implemented during constructon to maximize reclamaton success. Project-generated garbage or Project Descripton, Conditon Secton 10.0, 13.0, Page: 50 to 55, 65 to 69. debris will be removed regularly from along the constructon right-of-way and facility sites. Afer the p 21. pipeline trench has been backflled, and once weather and soil conditons permit, cleanup and reclamaton actvites will start along the disturbed portons of the pipeline right-of-way. This will be done using bulldozers, backhoes, graders and farm equipment, where required. The topsoil or stripping will be replaced, and cross ditches and diversion berms will be installed on moderate and steep slopes to reduce the risk of erosion. 342 Environment NEB As part of Trans Mountain’s commitment to Environmental protecton, Trans Mountain will minimize Technical Update During Operatons Superseded by NEB 41 Commitment addressed by CER Conditon 41, CER Filing ID A90909, Conditon 41 Wetland Survey potental adverse impacts to wetlands by repairing any erosion control or restoraton features untl No. 1 & Consultaton Conditon and Mitgaton Plan, Secton 5.5, Page: 33. permanent revegetaton is successful. Update No. 2 - Part 2 Table 1.6.2-1 343 Environment City of Burnaby, NEB As with all of its constructon Projects, Trans Mountain will reclaim any areas that are afected by the Applicaton Volume During Operatons Superseded by NEB 72 Commitment addressed by CER Conditon 72, CER Filing ID A86570, Conditon 72 Reclamaton Project. Trans Mountain is commited to reclamaton of the pipeline right-of-way and surrounding 5B, 3-64;NEB Route Conditon Management Plan, Plan addresses this commitment. areas following constructon. Hearing TMEP Evidence Seg 7 Burnaby; NEB Route Hearing Transcript Seg 7 Vol 2 344 Environment NEB Details of mitgaton strategies for Pacifc water shrew will be provided with the fling of NEB IR NEB IR No. 1.44c Prior to Constructon Superseded by NEB 44 Commitment addressed by Conditon 44, Filing ID A90911, Conditon 44 Pacifc Water Shrew Round 2 responses in Q3 2014. Conditon Mitgaton and Habitat Restoraton Plan, Secton 5.0, Page: 24 to 36. 345 Environment NEB Due to the existng cumulatve efects risk for grizzly bear and management guidance to avoid NEB F-IR No. 2.034b, Prior to Constructon Superseded by NEB 56, 72 Commitment addressed by CER Conditon 56 and 72, Filing ID C01961, Conditon 72 Pipeline EPP, further efects, Trans Mountain will implement mitgaton measures to minimize efects on this NEB IR No. 2.034b Conditon Secton 6.3 in Appendix G and Secton 4.3 in Appendix H of the Pipeline EPP, Page: G-95, H-48 species (see response to NEB IR No. 1.47 [Filing ID A3W9H8]). Conditon 72 RSMT, CER Filing ID C00475, (Spread 2), RSMT Secton 4.2, Page: 11. CER Filing ID C05272 (Spread 3/4a), RSMT Secton 4.4, Page: 13. CER Filing ID C03930 (Spread 4b), RSMT Secton 4.4, Page: 12. CER Filing ID C04634 (Spread 5a), RMST Secton 4.4, Page: 42. CER Filing ID C05600 (Spread 5b), RSMT Secton 4.4, Page: 25. 347 Environment NEB For acoustc environment, the monitoring results will be fled with the NEB within 6 months of NEB IR No. 2.067e During Operatons Superseded by NEB 141 Commitment will be addressed by CER Conditon 141, Not yet fled (within 3 months afer conductng the inital measurements. Measurement programs will be scheduled within the frst 6 Conditon commencing operatons), CER Conditon 141 Post-constructon noise surveys. months of normal operatons, but will be weather and actvity dependent.

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348 Environment NEB In the event the schedule changes and clearing actvites are planned during the migratory bird Technical Update Prior to Constructon Superseded by NEB 72, 78, 81 Commitment addressed by CER Conditon 72, 78, 81. CER Filing ID C01961, Conditon 72 Pipeline restricted actvity period, a migratory bird nest sweep will be conducted. In the event an actve nest No. 1 and Conditon EPP, Secton 7.0, Page: 19. Conditon 72, CER Filing ID C00470 (Spread 1), RSMT Secton 4.2, Page 8. is found, a protectve bufer will be established around the nest. The size of the bufer will be Consultaton Update CER Filing ID C00475 (Spread 2), RSMT Secton 4.2, Page: 10. CER Filing ID C05272 (Spread 3/4a), infuenced by the status of the bird. Typically a 30 m bufer is applied to a songbird nest and a 100 m No. 2 - Part 5, Part RSMT Secton 4.2, Page: 11. CER Filing ID C03930 (Spread 4b), RSMT Secton 4.2, Page: 8. CER Filing bufer around waterfowl or raptor nests. 01 Table 1.6.2-1 ID C04634 (Spread 5a), RMST Secton 4.2, Page: 21. CER Filing ID C05600 (Spread 5b), RSMT Secton 4.2, Page: 19. CER Filing ID C03931 (Spread 7), RSMT Secton 4.2, Page 17. CER Filing ID C06991, Conditon 78 Facilites EPP, Secton 6.0, Appendix D, Page: 6-2, Table D-1 CER Filing ID C08265, Conditon 81 Westridge Marine Terminal EPP, Secton 6.0, Appendix D, Page: 6-3, Table D-1. 350 Environment NEB The need and methods for a bear den sweep will be discussed with the appropriate regulatory NEB IR No. 2.037b During Constructon In Progress Consultaton records with the appropriate government authority, if required. agency in the event constructon actvity is scheduled to coincide with the period when bears are denning and habitat suitability for denning is high. 351 Environment NEB To meet Environmental commitments and permit requirements during Project actvites, Trans Applicaton Volume Project Lifecycle Superseded by NEB 72 Commitment addressed by CER Conditon 72, CER Filing ID C03070, Conditon 72 Environmental Mountain will implement an Environmental inspecton and monitoring program that includes 6A, 3-1. Conditon Compliance Management Plan, Plan addresses this commitment. management oversight, on-site Environmental inspecton, various available Environmental training programs for all on-site personnel and access to other Environmental resources (e.g., wildlife biologists, water quality monitors) on an as needed basis. 352 Environment NEB To protect riparian habitat and watersheds, crossings of wetlands and watercourses will be planned Technical Update During Constructon Superseded by NEB 43, 72 Commitment addressed by CER Conditon 72, 43, CER Filing ID C01961, Secton 7.0, 10.0, Secton during suitable ground and weather conditons, with the consideraton for sensitve fsh and wildlife No. 1 and Conditon 13.0 in Appendix B Page: 22, 29, 51 to 52, B-36 to B-40, CER Filing ID C00815, Conditon 43 Update tming windows. Consultaton Update Watercourse Crossing Inventory Appendix A to D, Appendix A and B. No. 2 - Part 2 Table 1.6.3-1 353 Environment Sto:lo Collectve Trans Mountain welcomes the opportunity to discuss infrastructure and capacity for Sto:lo heritage Sto:lo Collectve Project Lifecycle Superseded by NEB 98 Commitment addressed by CER Conditon 98, CER Filing ID C00105, Conditon 98 Plan for resource management technical involvement as constructon monitors, to ensure protecton of sites, Recommendaton Conditon Indigenous Group Partcipaton in Constructon Monitoring, Secton 4.5, Page: 10. and to ensure Sto:lo practces are maintained. #54 354 Environment NEB Pending project approval, Trans Mountain is commited to consider a conservaton ofset program NEB IR No. 2.042c Prior to Constructon Superseded by NEB 40, 41, 42, 128, 142, Commitment addressed by CER Conditon 40, 41, 42, 128, 142, 154, 155, 156, 157, CER Filing ID for the entre Project that results in a net beneft. TMEP is commited to exceed minimum standards Conditon 154, 155, 156, 157 A90904, Conditon 40 Rare Ecological Communites and Rare Plant Populaton management Plan, in areas with acknowledged biodiversity values. Secton 7.0, Page: 47 to 53. Filing ID A90909, Conditon 41 Wetland Survey and Mitgaton Plan, Appendix E, Page: E-1 (1 to 22 in Appendix E). Filing ID A84318, Conditon 42 Grasslands Survey and Mitgaton Plan, Secton 7.0, Page: 43 to 50. Not yet fled (to be fled at least 3 months prior to applying for leave to open), Conditon 128 Ofset Management Plan for residual efects on caribou habitat. Not yet fled (within 4 months afer commencing operatons), Conditon 142 GHG Emissions Ofset Plan. Not yet fled (on or before 31 January afer the ffh complete growing season afer completng fnal clean-up), Conditon 154 Riparian Habitat Reclamaton Evaluaton Report and Ofset Plan. Not yet fled (on or before 31 January afer the ffh complete growing season afer completng fnal clean-up), Conditon 155 Rare Ecological Community and Rare Plant Populaton Mitgaton Evaluaton Report and Ofset Plan. Not yet fled (on or before 31 January afer the ffh complete growing season afer completng fnal clean-up), Conditon 156 Wetland Reclamaton Evaluaton Report and Ofset Plan. Not yet fled (on or before 31 January afer the tenth complete growing season afer completng fnal clean-up), Conditon 157 Grasslands Reclamaton Evaluaton Report and Ofset Plan. 355 Environment NEB Trans Mountain is commited to best practces in reclamaton, always striving for opportunites Technical Update Project Lifecycle Superseded by NEB 72 Commitment addressed by CER Conditon 72, CER Filing ID A86570, Conditon 72 Reclamaton leading to advancement. As with all of its constructon projects, Trans Mountain will reclaim any No. 1 and Conditon Management Plan, Secton 1.0 Page: 1. areas that are afected by the Project. Trans Mountain is commited to full reclamaton of the Consultaton Update pipeline right-of-way and surrounding areas following constructon. No. 2 - Part 2 Table 1.6.3-1 356 Environment Sto:lo Collectve During the constructon phase, Trans Mountain will discuss any unantcipated adverse efects on Sto:lo Collectve During Constructon Superseded by NEB 13 Commitment addressed by CER Conditon 13, CER Filing ID A84618, CER Conditon 13 Socio- Sto:lo businesses related to the constructon of the Project during the mutually agreed to on-going Recommendaton Conditon Economic Efects Monitoring Plan, Secton 3.0 (Table 3), Page 13 to 15. engagement between Sto:lo and Trans Mountain. Additonal mitgaton will be developed, as #71 required, if and as such adverse efects are identfed. 357 Environment NEB Trans Mountain will conduct a Post Constructon Environmental Monitoring (PCEM) program during Applicaton Volume During Operatons Superseded by NEB 151 Commitment will be addressed by CER Conditon 151, Not yet fled (on or before 31 January a period up to the frst fve complete growing seasons (or during years one, three and fve) following 1, secton 3.1.3. Conditon following the frst, third, and ffh complete growing seasons afer completng fnal clean-up), commissioning of the Project and as a consequence of conditons that may be atached to the Conditon 151, Post-constructon environmental monitoring reports. Certfcate of Public Convenience and Necessity (CPCN). 358 Environment NEB Trans Mountain will consult with Fisheries and Oceans Canada (DFO) to determine whether the NEB IR No. 1.56 Prior to Constructon Superseded by NEB 132 Commitment will be addressed by CER Conditon 132, Not yet fled (at least 3 months prior to Pacifc Salmon Foundaton mult-year comprehensive ‘Salish Sea Marine Survival Project’ initatve Conditon commencing operatons), CER Conditon 132, Marine Mammal Protecton Program. can also be considered to be a scientfcally defensible and useful recovery measure for resident killer whales by restoring an adequate and accessible food supply. 359 Environment NEB Trans Mountain will develop and implement an Environmental educaton program to ensure that all Applicaton Volume During Constructon Complete Trans Mountain Developed an Environmental Compliance and Educaton Training Program. A individuals involved in the constructon of the Project understand the Environmental requirements 6A, 6-1. descripton of the program is found in the Environmental Compliance Management Plan, Secton of the Project and their role and responsibilites with regard to meetng those requirements. 5.0, Page: 9 to 11. 360 Environment NEB Trans Mountain will fle Mitgaton Plans for Lewis’s woodpecker and Williamson’s sapsucker with the NEB F-IR No. 1.45c Prior to Constructon Superseded by NEB 44 Commitment addressed by Conditon 44, CER Filing ID A90906, Conditon 44 Williamson’s Sapsucker NEB at least 4 months prior to commencing constructon. Conditon and Lewis’s Woodpecker Mitgaton and Habitat Restoraton Plan, Plan addresses this commitment.

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361 Environment NEB Trans Mountain will fle Mitgaton Plans for Townsend’s mole and Pacifc giant salamander with the NEB F-IR No. 1.44d Prior to Constructon Superseded by NEB 44 Commitment addressed by Conditon 44, CER Filing ID A90905, Conditon 44 Coastal Giant NEB at least 4 months prior to commencing constructon. Conditon Salamander Mitgaton and Habitat Restoraton Plan, Plan addresses this commitment CER Filing ID A85074, Conditon 44 Townsend’s Mole Mitgaton and Habitat Restoraton Plan, Plan addresses this commitment. 362 Environment NEB Trans Mountain will implement a monitoring program to determine the efectveness of the erosion Applicaton Volume During Constructon Superseded by NEB 81 Commitment addressed by CER Conditon 81, CER Filing ID C08265, Conditon 81 Westridge Marine and sediment control mitgaton measures during constructon in preventng terrestrial sediment 5A, 7-407. Conditon Terminal EPP, Secton 7.1, 8.0 Page: 7-2, 8-3. loading into the marine environment. 363 Environment NEB Trans Mountain will implement recommendatons from Alberta Culture and will provide the NEB Applicaton Volume Prior to Constructon Superseded by NEB 100 Commitment addressed by CER Conditon 100, CER Filing ID C01853, Conditon 100 Heritage with a copy of the Historical Resources Act clearance leter as per the approval conditons. Trans 5B, Secton 7.2.1.3, Conditon Resources and Sacred and Cultural Sites Plan, Secton 3.0, Page: 4 to 6. Mountain will also implement recommendatons from BC Archaeology Branch and will provide the page 7-10 NEB with a copy of the Heritage Conservaton Act acceptance leter as per the approval conditons. 365 Environment NEB Trans Mountain will provide advance notfcaton to regulatory authorites responsible for fsh and Applicaton Volume Prior to Constructon Superseded by NEB 72,78 Commitment addressed by CER Conditon 72, 78, CER Filing ID C01961, Conditon 72 Pipeline EPP, wildlife management with fnal routng informaton, including maps, as well as constructon schedule 5B, 7-108. Conditon Secton 5.0, Page: 11 to 13.Conditon 78, CER Filing ID C05815, Conditon 78, Temporary informaton, so they can communicate this informaton broadly in wildlife and fur management Constructon Lands and Infrastructure EPP, Secton 5.0, Page: 14 to 15, Conditon 78, CER Filing ID areas. Trans Mountain will also directly notfy afected tenure holders so they can select alternate C06991, Conditon 78 Facilites EPP, Secton 5.0, Page: 5-1 to 5-3. areas for their actvites. 366 Environment NEB Trans Mountain will report any rare plants or rare lichens identfed to the provincial conservaton Applicaton Volume Project Lifecycle In Progress Commitment addressed by CER Conditon 40, CER Filing ID A90904, Conditon 40 Rare Ecological data centre. 5A, 8-114. Community and Rare Plant Populaton Management Plan, Appendix A and D, Page A-12, D-4. CVA2021-395 IR#24 Round 1 Response: a) Trans Mountain has not yet reported any rare plants or rare lichens to the provincial conservaton data centres (CDCs). As stated in Table A-3 and Appendix D of Conditon 40, Trans Mountain will report data to the CDCs, including any updates from follow- up surveys. Data on tracked occurrences will be provided and updated with the results of any follow-up surveys when they are complete. 367 Environment NEB Trans Mountain will work with Environment Canada (EC) and comply with the Migratory Birds Part 2 – Consultaton Prior to Constructon No Longer The Project no longer crosses the Cheam Lake Wetlands Regional Park, as outlined in the EAS Conventon Act and Migratory Birds Sanctuary Regulatons, as well as any provincial and territorial Update No. 1 Applicable (Spread 6, to be fled with the CER). Commitment addressed by Conditon 72, CER Filing ID C01961, wildlife agencies related to the Project components and impacts. Clearing and pre-constructon Conditon 72 Pipeline EPP, Secton 7.0, Page: 19. actvites will be conducted outside the minimum migratory bird restricted actvity period (RAP) of May 1 to July 31, where practcal. In the event that the schedule changes and clearing actvites are planned during the migratory bird RAP, a migratory bird nest sweep will be conducted. In the event that an actve nest is found, a protectve bufer will be established around the nest. The size of the bufer will be infuenced by the status of the bird. Typically a 30 m bufer is applied to a songbird nest and a 100 m bufer is applied around waterfowl or raptor nests. Recommended mitgaton measures are identfed in Volume 6B – Pipeline Environmental Protecton Plan. 368 Environment NEB Trans Mountain will work with provincial regulatory authorites, tenure holders and other Applicaton Volume Project Lifecycle Superseded by NEB 36, 37 Commitment addressed by CER Conditon 36, 37, CER Filing ID A84436, Conditon 36 Pre- stakeholders to identfy opportunites to address potental residual Project efects on caribou 5A, 7-271. Conditon Constructon Caribou Habitat Assessment, Appendix B, Page B-3. CER Filing ID A85071, Conditon habitat. 37a Preliminary Caribou Habitat Restoraton Plan, Secton 4.0 and Appendix B, Page: 14, B-1 to B-13 369 Environment NEB Trans Mountain will work with the appropriate regulatory authorites to develop a mitgaton Applicaton Volume Project Lifecycle Superseded by NEB 56 Commitment addressed by CER Conditon 56, Filing ID A90913, Conditon 56 Grizzly Bear Mitgaton strategy to address the Project’s incremental cumulatve efect on grizzly bear in the North Cascades 5A, 8-151. Conditon Plan, Appendix A, Page: A-4 to A-6. Plan was prepared in consultaton with the appropriate Grizzly Bear Populaton Unit (GBPU). government authorites. 370 Environment NEB Trans Mountain will work with various provincial and federal agencies with responsibilites related to NEB IR No. 2.027 Prior to Constructon Superseded by NEB 52, 53, 54, 79 Commitment addressed by CER Conditon 52, 53, 54 CER Filing ID A84415, Conditon 52 Air air emissions from the Project components. Conditon Emissions Management Plan for WMT, Appendix A, Page: A-8 to A-20 Conditon 53, CER Filing ID A84416, Fugitve Emissions Management Plan for WMT, Appendix A, Page: A-3 to A-9. Conditon 54, CER Filing ID A84796, Conditon 54 Fugitve Emissions Management Plan for Sumas and Burnaby Terminals, Appendix A, page: A-4 to A-5, Conditon 54, CER Filing ID A84796, Conditon 54 Fugitve Emissions Management Plan for Edmonton Termina, Appendix A, Page A-2 Conditon 79, CER Filing ID C08441, Conditon 79 Air Emissions Management Plan for Sumas and Burnaby Terminals, Appendix A, Page: A-7 to A-15 Conditon 79, CER Filing ID A84102, Air Emissions Management Plan for Edmonton Terminal, Appendix A, Page: A-8 to A-9. 371 Environment Pro Informaton Pro If herbicide is to be applied in close proximity to a certfed organic farm the contractors will be PIPEUP IR No. 1.6.3 Prior to Constructon Superseded by NEB 45, 72 Commitment addressed by CER Conditon 45, 72, CER Filing ID A86546, Conditon 45 Weed and Environment United People supervised by a qualifed Environmental professional to ensure that the farms are not afected by Conditon Vegetaton Management Plan, Secton 5.2, 5.2.3, Page 16, 25 CER Filing ID C01961, Conditon 72 Network the actvity. If weeds need to be controlled through a certfed organic farm, Trans Mountain will Pipeline EPP, Secton 7.0, Page 26. coordinate an acceptable soluton with the landowner/land manager to mitgate the weed concerns. 373 Environment C.G.L.A.P. - Collaboratve Trans Mountain is commited to systematc and tmely communicaton with farm operators. Based CGLAP IR No. 2.8b Prior to Constructon Superseded by NEB 72 Commitment addressed by CER Conditon 72, CER Filing ID C01961, Conditon 72 Pipeline EPP, Group of Landowners on this communicaton, detailed biosecurity measures will be developed collaboratvely between the Conditon Secton 5.0, 7.0, Secton 2.2 and 2.3 in Appendix G Page: 12, 25, 26, G-24 to G-25, G-33, G-37 to G- Afected by Pipelines farm operator and Trans Mountain. 38. 375 Environment C.G.L.A.P. - Collaboratve Trans Mountain will meet with the BC Agricultural Land Commission (ALC) again in the fall of 2014 to CGLAP IR No. 2.1a Prior to Constructon Complete Leter from ALC received on May 11, 2015 confrms meetngs and telephone calls between Group of Landowners review Trans Mountain’s commitments to agriculture and obtain further input from the BC Management Consultants Ltd. On behalf of Trans Mountain. Afected by Pipelines Agricultural Land Commission (ALC). 376 Environment C.G.L.A.P. - Collaboratve Where a landowner raises a concern, the Agricultural Monitor will take core soil samples across the CGLAP IR No. 2.5f Project Lifecycle Scoping Proof of completon will be the Conditon 151 Post-constructon environmental monitoring reports. Group of Landowners constructon right-of-way and of right-of-way to assess conditons, defne anomalies, and make Afected by Pipelines recommendatons to resolve identfed concerns.

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377 Environment Sto:lo Collectve During the constructon phase, Trans Mountain will discuss any unantcipated adverse efects on Sto:lo Collectve During Constructon Superseded by NEB 13 Commitment addressed by CER Conditon 13, CER Filing ID A84618, CER Conditon 13 Socio- Sto:lo businesses related to the constructon of the Project during the mutually agreed to on-going Recommendaton Conditon Economic Efects Monitoring Plan, Secton 3.0 (Table 3), Page 13 to 15. engagement between Sto:lo and Trans Mountain. Additonal mitgaton will be developed, as #71 required, if and as such adverse efects are identfed. 388 Environment Environment Canada At Westridge Marine Terminal, Trans Mountain will undertake Marine Bird Monitoring as a EC P-IR No 1.21 Prior to Constructon Superseded by NEB 151 Commitment will be addressed by CER Conditon 151, Not yet fled (on or before 31 January component of the Post Constructon Environmental Monitoring program. Trans Mountain will meet Conditon following the frst, third, and ffh complete growing seasons afer completng fnal clean-up), with Environment Canada to discuss the monitoring program. Conditon 151 Post-constructon environmental monitoring reports. 406 Environment NEB Through the proposed Marine Mammal Protecton Program and other regional collaboratve NEB IR No. 1.38 Prior to Operatons Superseded by NEB 132 Commitment will be addressed by CER Conditon 132, Not yet fled (at least 3 months prior to initatves, Trans Mountain commits to implementng mitgaton measures that are within its control Conditon commencing operatons), CER Conditon 132 Marine Mammal Protecton Program. to implement to manage potental Environmental efects (both Project-related and cumulatve) on marine mammals. 408 Environment NEB Trans Mountain is commited to working with Fisheries and Oceans Canada (DFO), partcipatng NEB IR No. 1.51 Prior to Constructon Superseded by NEB 110 Westridge Marine Terminal Applicaton for Authorizaton under Paragraph 35(2)(b) of the Fisheries Aboriginal communites, Vancouver Fraser Port Authority DBA Port Metro Vancouver and other Conditon Act available, if required. Conditon 109a Authorizaton(s) under paragraph 35(2)(b) of the Fisheries stakeholders to identfy the most appropriate means of ofsetng serious harm to marine fsh and Act - Westridge Marine Terminal 17-HPAC-00071, CER Filing ID A85941, Fisheries Act Atúhorizaton - fsh habitat. Trans Mountain will submit a preliminary marine fsh habitat ofsetng plan to the NEB Amendment, 19-HPAC-00753, CER Filing ID C05214. in Q 3 2014. 419 Environment City of Burnaby Post-constructon monitoring will contnue untl remediaton measures are considered to be City Burnaby IR No. During Operatons Superseded by NEB 151 Commitment will be addressed by CER Conditon 151, Not yet fled (on or before 31 January efectve and issues are resolved in Old Growth Management Areas. 1.04.14k Conditon following the frst, third, and ffh complete growing seasons afer completng fnal clean-up), Conditon 151 Post-constructon environmental monitoring reports. 427 Environment Parks Canada Agency The Company’s Jasper Natonal Park Operatons and Maintenance Environmental Protecton Plan GoC Parks IR No. Prior to Constructon Complete In accordance with Commitment 427, Trans Mountain’s 2017 Reactvaton EPP was developed for will be revised and updated prior to reactvaton. 1.2.4 Parks Canada to incorporate the standards and environmental protecton measures set out in the Pipeline and Facilites EPPs into the O&M components of the Project. The Reactvaton EPP was submited to Parks Canada on August 14, 2017, and has been in use since this date. 453 Environment City of Burnaby Trans Mountain will adopt any additonal measures required by the NEB such as those set out in NEB City Burnaby IR No. Prior to Constructon Superseded by NEB 80, 141 Commitment addressed by CER Conditon 80, 141, CER Filing ID C06928, Conditon 80 Terminals Draf Conditon No. 33 of the NEB’s Leter – Draf Conditons and Regulatory Oversight (NEB 2014). 1.27.02b Conditon Constructon Noise Management Plan, Plan addresses this commitment. Commitment will be addressed by CER Conditon 141, Not yet fled (within 3 months afer commencing operatons), CER Conditon 141 Post-constructon noise surveys. 456 Environment Regional District of Fraser- Trans Mountain will contnue to work with the communites of Valemount and the Regional District RD of Fraser-Fort Prior to Constructon Superseded by NEB 59 Commitment addressed by CER Conditon 59, CER Conditon 59 Worker Accommodaton Strategy, Fort George on implementng and enforcing procedures that discourage disregard for the sensitvity of that George IR No. 1.04b Conditon CER Filing ID A85812, Appendix A, Page A-6 to A-18. environment, by its employees and contractors. 458 Environment NEB The Socio-Economic Efects Monitoring Program will include monitoring indicators related to NEB IR No. 1.17d.6 Prior to Constructon Superseded by NEB 13 Commitment addressed by CER Conditon 13, CER Filing ID A84618, CER Conditon 13 Socio- worker/community interacton and worker conduct. Conditon Economic Efects Monitoring Plan, Secton 3.0 (Table 3), Page 13 to 15. 459 Environment NEB Trans Mountain will consult with key stakeholders (e.g., governments, local/regional service NEB IR No. 1.17d Prior to Constructon Superseded by NEB 13 Commitment addressed by CER Conditon 13, CER Filing ID A84618, CER Conditon 13 Socio- providers, Aboriginal communites, municipalites) regarding the socio-economic efects monitoring Conditon Economic Efects Monitoring Plan, Secton 2.0, Page 11. framework, indicators to be monitored, methods of reportng, and the level of local/regional interest in partcipatng in socio-economic efects monitoring. The monitoring framework and process will then be fnalized and shared publically. 462 Environment NEB Trans Mountain will fle a consultaton update with the Board on Trans Mountain’s consultatons NEB Cond IR No. Prior to Constructon Superseded by NEB 59 Commitment addressed by CER Conditon 59, CER Conditon 59 Worker Accommodaton Strategy, with municipal and provincial authorites regarding its waste management plans at each of the 21.4a Conditon CER Filing ID A85812, Appendix A, Page A-6 to A-18. Conditon 59 Waste Management Plan - proposed camp sites at the tme copies of camp permits are fled with the Board. Valemount (VAL028), CER Filing ID C07327. Conditon 59 Waste Management Plan- Clearwater (CLE011), CER Filing ID C08823 464 Environment NEB In order to reduce the potental efects of disturbing contaminated soils during project actvites, NEB Cond IR No. Project Lifecycle In Progress Proof of completon will be the transmital records for the Phase 1 Reports. Trans Mountain commits to providing contractors with a site plan showing areas of potental 42.5 concern for high and moderate risk sites for the applicable temporary work spaces in Spread 4. 465 Environment NEB Trans Mountain will also fle the waste management plan for each camp with the Board at this tme, NEB Cond IR No. Prior to Constructon Superseded by NEB 59 Commitment addressed by CER Conditon 59, CER Conditon 59 Worker Accommodaton Strategy, which will include a descripton of the assessment of the potental impacts related to waste 21.4a Conditon CER Filing ID A85812, Secton 4.1 Page: 23 to 24. management and a descripton of all associated mitgaton measures. 469 Environment NEB Trans Mountain is commited to meetng the applicable ambient air quality objectves at the NEB IR No. 3.019b During Operatons Superseded by NEB 79 Commitment addressed by CER Conditon 79, CER Filing ID A84102, Air Emissions Management Plan Edmonton Terminal. Conditon for Edmonton Terminal, Secton 1.2, Page: 1. 470 Environment NEB Trans Mountain will establish a Groundwater Monitoring Program for Albreda Pump Staton in 2015. NEB IR No. 3.022c.2 Prior to Constructon Complete Monitoring wells were installed at the Albreda Pump Staton in May 2015. Trans Mountain prepared This is scheduled as part of the annual additon to the Groundwater Monitoring Program. a Phase II Environmental Site Assessment - Albreda Pump Staton which outlines the Groundwater Monitoring Program for the Albreda Pump Staton in December 2016. 473 Environment NEB Trans Mountain commits to produce site-specifc mitgaton measures for all rare plant, rare lichen NEB IR No. 3.026 Prior to Constructon Superseded by NEB 40 Commitment addressed by CER Conditon 40, CER Filing ID A90904, Conditon 40 Rare Ecological and rare ecological community occurrences observed on the fnal Project footprint. Conditon Community and Rare Plant Populaton Management Plan, Appendix E, Page: E-1. 474 Environment NEB The locaton of all sensitve vegetaton features and their site-specifc mitgaton measures will be on NEB IR No. 3.026 Prior to Constructon Superseded by NEB 72 Commitment addressed by CER Conditon 72, CER Filing ID C00470 (Spread 1), RSMT Secton 5.1, the Environmental alignment sheets (EAS), which will be reissued prior to constructon. The EAS will Conditon Page 12. EAS, Page: All. CER Filing ID C00475 (Spread 2), RSMT Secton 5.1, Page: 15, EAS, Page: All. illustrate the features and provide guidance to mitgaton measures and management plans provided CER Filing ID C005272 (Spread 3/4a), RSMT Secton 5.1, Page: 15, EAS, Page: All. CER Filing ID in the Environmental Protecton Plan and Management Plans. C03930 (Spread 4b), RSMT Secton 5.1, Page: 14, EAS, Page: All. CER Filing ID C04634 (Spread 5a), RMST Secton 5.1, Page: 42, EAS, Page: All. CER Filing ID C05600 (Spread 5b), RSMT Secton 5.1, Page: 28, EAS, Page: All. CER Filing ID C03931 (Spread 7), ESMT Secton 5.1, Page 25, EAS, Page: All.

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475 Environment NEB The fnal Reclamaton Plan will be completed prior to constructon in consultaton with BC Parks. NEB IR No. 3.026d Prior to Constructon Superseded by NEB 72 Commitment addressed by CER Conditon 72, CER Filing ID A86570, Conditon 72 Reclamaton Conditon Management Plan, Appendix J, Page: J-7, J-9 to J-10. 476 Environment NEB Trans Mountain commits to contnue the discussions with BC Ministry of Forests, Lands and Natural NEB IR No. 3.027c Prior to Constructon Superseded by NEB 76 Commitment addressed by CER Conditon 76, CER Filing ID A84120, Conditon 76 Old Growth Resource Operatons (MFLNRO) and coordinatng OGMA mitgaton requirements. Conditon Management Areas Mitgaton and Replacement Plan, Secton 6.2, Page: 20. 477 Environment NEB Trans Mountain commits to reviewing replacement optons for Old Growth Management Areas NEB IR No. 3.027 Prior to Constructon Superseded by NEB 76 Commitment addressed by CER Conditon 76, CER Filing ID A84120, Conditon 76 Old Growth (OGMAs) if unavoidable adverse efects result from the Project. Conditon Management Areas Mitgaton and Replacement Plan, Secton 6.3, Page: 26, 29. 478 Environment NEB Trans Mountain remains commited to conductng ground-based surveys at all wetlands NEB IR No. 3.028a Prior to Constructon Superseded by NEB 41 Commitment addressed by CER Conditon 41, CER Filing ID A90909, Conditon 41 Wetland Survey encountered by the Project prior to constructon, where access is available. Conditon and Mitgaton Plan, Secton 4.4.2.1, Page: 14. 479 Environment NEB Trans Mountain will advise the NEB in the event that it is unable to complete surveys of wetlands NEB IR No. 3.028 Prior to Constructon Superseded by NEB 41 Commitment addressed by CER Conditon 41, CER Filing ID A90909, Conditon 41 Wetland Survey not previously surveyed prior to constructon and will provide the NEB with a summary of its Conditon and Mitgaton Plan, Secton 4.4.2.1, Page: 14. atempts to obtain access. 480 Environment NEB Approximately 117 wetlands crossed by the proposed pipeline corridor will be targeted for NEB IR No. 3.028 Prior to Constructon Superseded by NEB 41 Commitment addressed by CER Conditon 41 , CER Filing ID A90909, Conditon 41 Wetland Survey supplemental surveys prior to constructon, subject to land access. Conditon and Mitgaton Plan, Secton 4.4.2.1, Page: 14. 481 Environment NEB Trans Mountain has commited to prepare a Mitgaton Plan (NEB F-IR No. 1.44d [Filing ID A3Z4T4]), NEB IR No. 3.029c Prior to Constructon Superseded by NEB 44 Commitment addressed by Conditon 44, CER Filing ID A85074, Conditon 44 Townsend’s Mole and provide an assessment of Townsend’s mole. Conditon Mitgaton and Habitat Restoraton Plan, Plan addresses this commitment. 484 Environment NEB Trans Mountain will develop and implement Environmental ofset projects to focus on parks and NEB IR No. 3.036a, Project Lifecycle Superseded by NEB 41, 42, 44, 71, 76, Commitment addressed by CER Conditon 41, 42, 71, 76, 154, 156, 157 Filing ID A90909, Conditon protected areas, BC interior grasslands, species at risk and their habitat, aquatc ecosystems, and old NEB IR No. 3.037 Conditon 154, 156, 257 41 Wetland Survey and Mitgaton Plan, Appendix E, Page: E-1 (Page 1 to 22). Filing ID A84318, growth management areas. Conditon 42 Grasslands Survey and Mitgaton Plan, Secton 7.0, Page: 43 to 50. CER Filing ID A90936, Conditon 71 Riparian Habitat Management Plan, Secton 7.0, Page: 57 to 64. CER Filing ID A84120, Conditon 76 Old Growth Management Areas Mitgaton and Replacement Plan, Secton 6.3, Page: 23 to 29. Commitment addressed by Conditon 44, CER Filing ID A90910, Conditon 44 Western Screech-Owl Mitgaton and Habitat Restoraton Plan, Secton 1.3, Page: 3. CER Filing ID A86567, American Badger Mitgaton and Habitat Restoraton Plan, Secton 1.3, Page: 2 to 3. CER Filing ID A90911 Conditon 44 Pacifc Water Shrew Mitgaton and Habitat Restoraton Plan, Secton 1.3, Page: 2 to 3. CER Filing ID A90905, Conditon 44 Coastal Giant Salamander Mitgaton and Habitat Restoraton Plan, Secton 1.3, Page: 2 to 3 CER Filing ID A86567, Conditon 44 Townsend’s Mole Mitgaton and Habitat Restoraton Plan, Secton 1.3, Page: 2 to 3 CER Filing ID A90906, Conditon 44 Williamson’s Sapsucker and Lewis’s Woodpecker Mitgaton and Habitat Restoraton Plan, Secton 1.3, Page: 2 to 3 CER Filing ID A90907, Conditon 44 Oregon Spoted Frog Mitgaton and Habitat Restoraton Plan, Secton 1.3, Page: 2 CER Filing ID A86567, Conditon 44 Barn Owl Mitgaton and Habitat Restoraton Plan, Secton 1.3, Page: 2 CER Filing ID A86567, Conditon 44 Great Basin Spadefoot Mitgaton and Habitat Restoraton Plan, Secton 1.3, Page: 2 CER Filing ID A86567, Conditon 44 Oregon Forestsnail Mitgaton and Habitat Restoraton Plan, Secton 1.3, Page: 2 to 3 CER Filing ID A83046, Conditon 44 Western Ratlesnake and Great Basin Gophersnake Mitgaton and Habitat Restoraton Plan, Secton 1.3, Page: 2 Not yet fled (on or before 31 January afer the ffh complete growing season afer completng fnal clean-up), Conditon 154 Riparian Habitat Reclamaton Evaluaton Report and Ofset Plan Not yet fled (on or before 31 January afer the ffh complete growing season afer completng fnal clean-up), Conditon 156 Wetland Reclamaton Evaluaton Report and Ofset Plan Not yet fled (on or before 31 January afer the tenth complete growing season afer completng fnal clean-up), Conditon 157 Grasslands Reclamaton Evaluaton Report and Ofset Plan Not yet fled (at least six months before the commencement of operatons), BC EAO Conditon 16, Wildlife Species at Risk Mitgaton and Preliminary Ofset Plan. 485 Environment NEB Trans Mountain is commited to providing a summary of the proposed ofset projects to the NEB NEB IR No. 3.037 Prior to Operatons Superseded by BC 21 Commitment addressed by EAO Conditon 21, not yet fled, to be submited for EAO’s approval six once they are defned and the necessary approvals / permits to construct and operate in the four EAO months before the commencement of Operatons. Plan to be fled with the CER to meet this proposed BC provincial parks and one recreaton area have been granted. commitment. 486 Environment NEB Trans Mountain will include additonal site-specifc mitgaton measures for watercourses identfed NEB IR No. 3.039 Prior to Constructon Superseded by NEB 75 Commitment addressed by CER Conditon 75. Mitgaton measures are outlined in Conditon 72, CER as critcal Nooksack dace and Salish sucker habitat in the fnal Pipeline Environmental Protecton Conditon Filing ID C01961, Conditon 72 Pipeline EPP, Secton 8.1 in Appendix G, Page: G-138, G-142 to G-143. Plan, to be fled with the NEB, at least 90 days prior to constructon in accordance with NEB draf conditon No. 29. 487 Environment NEB Trans Mountain will obtain necessary permits under the Species at Risk Act (SARA) for the salvage of NEB IR No. 3.042 Prior to Constructon Superseded by NEB 110 Commitment addressed by CER Conditon 110, Authorizaton(s) under paragraph 35(2)(b) of the all relevant freshwater fshes. Conditon Fisheries Act and Species at Risk permit(s) – pipeline, CER Filing ID C05089 SARA Permit for Litle Sundance Creek CER Filing ID C06333, DFO Authorizaton and SARA Permit for Coquihalla CER Filing ID C07943, DFO Authorizaton for Brunete Tributaries and Swif Creek. 488 Environment NEB Trans Mountain will contnue dialogue with all Aboriginal communites, where freshwater species at NEB IR No. 3.042 Prior to Constructon Superseded by NEB 75 Commitment addressed by CER Conditon 75, CER Filing ID C01961, Pipeline EPP (Appendix G risk are concerned. Conditon Nooksack Dace (NDC) and Salish Sucker (SSU) Management Plan), Secton 3.3 in Appendix A, Page: E-7 to E-9. 510 Environment NEB Spawning surveys will be conducted before and during constructon (where practcal/feasible) at NEB IR No. 3.38d.1 Prior to Constructon Superseded by NEB 72, 43 Commitment addressed by CER Conditon 72 and 43, Conditon 43, CER Filing ID A82366, crossings with high potental spawning habitat, and where spawning exclusion devices (e.g., Conditon Watercourse Crossing Inventory, Appendix A and B provides the feld results for presence of placement of snow-fence or other matng over spawning substrate) are not already in use. spawning habitat. CER Filing ID C01961, Conditon 72 Pipeline EPP, Secton 7.0, 14.1, Page: 32 to 33, 77 provides spawning deterrent measures. 511 Environment Natural Resources Canada Trans Mountain commits to updatng the air quality assessments for the Westridge Marine Terminal GoC NRCan IR No. Prior to Constructon Superseded by NEB 52 Commitment addressed by CER Conditon 52, CER Filing ID A84415, Air Emissions Management Plan in 2015 to inform engineering design. Trans Mountain has also commited to Vancouver Fraser Port 2.01 Conditon for Westridge Marine Terminal, Appendix F Supplemental Air Quality Technical Report No. 3 dated Authority DBA Port Metro Vancouver that an additonal air quality assessment will be prepared April 7, 2017. when the design engineering has adequately progressed.

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512 Environment Natural Resources Canada Trans Mountain has confrmed that they will meet with the Lower Fraser Valley Air Quality GoC NRCan IR No. Prior to Constructon Complete Reply Evidence Appendix 33C - Air Quality Modelling, Updated Community Mult-scale Air Quality Coordinatng Commitee (LFVAQCC) in Q1 2015 to develop a work plan for an updated 2.01, FVRD IR No. (CMAQ) Photochemical Modelling for the TMEP, CER Filing ID A4S7I6. Reply Evidence Appendix 33A photochemical modelling study that will be completed in Q3 2015. 2.10, Metro - Leter From Metro Vancouver – April 17, 2015, CER Filing ID A4S7I4. Vancouver IR No. 2.3.1. 517 Environment Natural Resources Canada Trans Mountain is commited to working with Aboriginal groups and other interested partes to GoC NRCan IR No. Prior to Constructon Superseded by NEB 109 Commitment addressed by CER Conditon 109. Westridge Marine Terminal Applicaton for identfy the most appropriate means of ofsetng serious harm to marine fsh and fsh habitat. 2.08 Conditon Authorizaton under Paragraph 35(2)(b) of the Fisheries Act available, if required. Conditon 109a Authorizaton(s) under paragraph 35(2)(b) of the Fisheries Act - Westridge Marine Terminal 17- HPAC-00071, CER Filing ID A85941, Fisheries Act Authorizaton - Amendment, 19-HPAC-00753, CER Filing ID C05214. 518 Environment Environment Canada Trans Mountain is commited to meetng federal and provincial water quality guidelines for the GoC EC IR No. 2.017 During Constructon Superseded by NEB 72 Commitment addressed by CER Conditon 72, CER Filing ID C01961, Conditon 72 Pipeline EPP, protecton of aquatc life during all stages of constructon. Conditon Secton 8.2 in Appendix G, Page: G-146. 519 Environment Environment Canada If the Natonal Energy Board (NEB) and Fisheries and Oceans Canada (DFO) determine that GoC EC IR No. 2.017 Prior to Constructon Superseded by NEB 109 Commitment addressed by CER Conditon 109, CER Filing ID A85941, CER Conditon 109 constructon of the Westridge Marine Terminal is likely to result in serious harm to fsh, Trans Conditon Authorizaton(s) under paragraph 35(2)(b) of the Fisheries Act –Westridge Marine Terminal, Mountain will implement marine fsh habitat ofsetng measures to counterbalance this serious Conditon 4. Conditons that relate to ofsetng (Conditon 4.1), Page 7. harm. 520 Environment Environment Canada If required through Parks Canada Agency's development permit applicaton process, Trans Mountain GoC EC IR No. Prior to Constructon Complete A PCA Developement Permit Applicaton was submited to Parks Canada on February 15, 2017. The will complete further efects assessment for the reactvaton actvites in accordance with the Parks 2.024b, GoC Parks IR efects assessment as part of the applicaton was included in the Development Permit Applicaton, Canada Directve on Implementaton of Canadian Environmental Assessment Act, 2012. No. 2.132 and no further assessments were requested (Supplemental IR fled on August 4, 2017), and Development Permit addendums were fled on December 22, 2017 and March 18, 2019. 521 Environment Environment Canada Upon completon of the In-Line Inspectons, Trans Mountain will complete feld surveys as needed GoC EC IR No. 2.024 Prior to Constructon Superseded by NEB 72 Commitment addressed by CER Conditon 72, Not yet Filed, Conditon 72 Reactvaton EPP, Secton prior to commencing reactvaton actvites along the Darfeld to Black Pines segment to inform the Conditon 6.0, Page: 30. development of mitgaton measures to avoid, reduce and mitgate Project efects on wetlands, vegetaton and wildlife species at risk and migratory birds, depending on the extent and nature of the reactvaton actvites. 522 Environment Environment Canada Trans Mountain is commited to the implementaton of mitgaton to ensure that the Project’s GoC EC IR No. During Operatons Superseded by NEB 37 Commitment addressed by CER Conditon 37, CER Filing ID A85071, Conditon 37a Preliminary contributon to caribou mortality risk is efectvely mitgated. 2.026c Conditon Caribou Habitat Restoraton Plan, Secton 6.2 and Table 3, Page: 24 to 32. 523 Environment Environment Canada Trans Mountain will assess whether length of trenchless crossing can be extended to provide a GoC EC IR No. Prior to Constructon Complete Trans Mountain has completed a review of the trenchless crossings. The results of the investgaton bufer zone(s) at each crossing site, where practcable for the locatons identfed in GoC EC IR No. 2.029b are presented in CER Conditon 37(a), CER Filing ID A85071, Conditon 37a Preliminary Caribou 2.029a. Habitat Restoraton Plan, Secton 5.2, Page: 16. 524 Environment Environment Canada Trans Mountain will provide Environment Canada (EC) with a map and spatal data (i.e. shape fles) GoC EC IR No. 2.030 Prior to Constructon Superseded by NEB 36 Commitment addressed by CER Conditon 36, CER Filing ID A84436, Conditon 36 Pre-Constructon of the constructon footprint within the Project’s Caribou Regional Study Area. Conditon Caribou Habitat Assessment, Secton 1.0 (Figure 1), Appendix D, Page: 3, Map Sheet 1 to 48. 525 Environment Environment Canada Trans Mountain commits to schedule a meetng with Environment Canada (EC) to review the area of GoC EC IR No. 2.035 Prior to Constructon Complete A meetng was held with Environment Canada on July 3, 2014. The purpose of the meetng was to Project overlap/interacton with critcal habitat. Review critcal habitat (CH) in relaton to the proposed Trans Mountain Expansion Project (TMEP), Provide update on terrestrial wildlife feld work and routng since submission of the Applicaton in December 2013, Review specifc locatons that are known to encounter CH and Discuss any Informaton Requests (IRs) that need clarifcaton. 526 Environment Tsawwassen First Naton Trans Mountain will contnue to consult with BC Ministry of Forests, Lands and Natural Resource GoC EC IR No. 2.036 Prior to Constructon Superseded by NEB 44 Commitment addressed by CER Conditon 44, CER Filing ID A90907, Conditon 44 Oregon Spoted Operatons (MFLNRO) in regards to Oregon spoted frog. Conditon Frog Mitgaton and Habitat Restoraton Plan, Secton 5.2, Appendix B, Page: 18, Page B-2. 527 Environment Environment Canada If clif/caves that may provide suitable habitat for spoted bat (i.e., vertcal clif faces with warm GoC EC IR No. 2.037 Prior to Constructon Complete An assessment of suitable habitat was completed, and no suitable vertcal clif faces with warm aspects and heights of approximately 40 m to 400 m) or known caves occur within the Project aspects and heights of approximately 40 m to 400 m or known caves were identfed. Trans Footprint, Trans Mountain will contact BC Ministry of Forests, Lands and Natural Resource Mountain has not identfed any vertcal clifs (with crevices, warm aspects and heights from 40‐ Operatons (MFLNRO) to discuss the appropriate survey method for determining if the clif/cave is 400m) within the pipeline constructon footprint. The pipeline constructon footprint has been used by spoted bat. refned in detail. As part of this process, Project Engineers have studied their Spreads to develop constructon plans, including blastng plans, and 3D grade plans using LiDAR. Within the range of spoted bat (i.e., Spread 5A, KP 806.47 to KP 990.26) vertcal clifs suitable for spoted bat roostng/hibernaton do not occur within the pipeline constructon footprint. Detailed studies specifc to spoted bat such as radio‐tracking, mist netng, inventories of bats, or use of acoustc monitoring is not deemed warranted. Therefore, Trans Mountain has not contacted BC MFLNRO to discuss this further. 528 Environment Environment Canada Trans Mountain will conduct spoted owl surveys in the Sowaqua Spoted Owl Wildlife Habitat Area GoC EC IR No. 2.038 Prior to Constructon Complete Surveys were completed in 2013, 2015, 2016, 2017, 2018, 2019. Dates are as follows: 2013: June in 2015 and 2016. 13/14, 14/15; June 24/25, 25/26; September 9/10, 10/11; 2015: May 20/21, 21/22; June 25/26, 26/27; September 8/9, 9/10; 2016: June 2/3, 14/15; June 15/16, 21/22; September 8/9, 9/10; 2017: May 24/25, 25/26; June 11/12, 12/13; August 21/22, 22/23; 2018: May 28/29, 29/30; July 16/17, 17/18; September 11/12, 12/13; 2019: May 9/10, 10/11; June 4/5, 6/7; September 10/11, 11/12; 2019. 529 Environment Environment Canada Trans Mountain will fnalize reclamaton strategies before constructon and will determine seed GoC EC IR No. 2.045 Prior to Constructon Superseded by NEB 72 Commitment addressed by CER Conditon 72, CER Filing ID A86570, Conditon 72 Reclamaton mixes in consultaton with the appropriate Crown land managers. Conditon Management Plan, Secton 5.6.1 Page: 24. 534 Environment Environment Canada Informaton on mortality and collision events during constructon will be compiled by the GoC EC IR No. Prior to Constructon Superseded by NEB 81 Commitment addressed by CER Conditon 81, CER Filing ID C08265, Conditon 81 Westridge Marine Environmental Monitor and included, as applicable, in post-constructon monitoring reports for the 2.050b Conditon Terminal EPP, Secton 6.0 Page: 6-3. Westridge Marine Terminal. 535 Environment Environment Canada Trans Mountain is commited to the goal of “no net loss” of wetland functon and plans to meet this GoC EC IR No. 2.054 During Operatons Superseded by NEB 41 Commitment addressed by CER Conditon 41 , CER Filing ID A90909, Conditon 41 Wetland Survey goal through mitgaton measures, post-constructon monitoring and, if warranted, compensaton. Conditon and Mitgaton Plan, Appendix E, Page: E-1 (Page 1 to 22).

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538 Environment Environment Canada Trans Mountain will provide CALMET model input fles for Burnaby Terminal Regional Study Area as GoC EC IR No. 2.059 Prior to Constructon Complete Email communicaton was sent on February 6, 2015 with data for IR 2.059b. requested. 544 Environment Environment Canada Trans Mountain will ensure all constructon right-of-way clearing actvites and site reclamaton GoC EC IR No. 2.122 During Constructon No Longer Regulaton repealed by BC Reg. 40/2019, Efectve March 6, 2019. actvites around the Chilliwack and Cascades Forest District boundary are in accordance with the Applicable Plant Protecton Act – Balsam Woolly Adelgid (B.C. Reg. 414/92). The movement of any tree of Abies species will not be moved to any place outside of the quarantne area. Additonally, logs of Abies species that are moved out of the quarantne zone must be transported and stored in water and promptly processed to avoid the spread of the Balsam Woolly Adelgid. 548 Environment Environment Canada Trans Mountain has commited to further environmental impact analysis in accordance with Parks GoC EC IR No. 2.132 Prior to Constructon Complete A PCA Development Permit Applicaton was submited to Parks Canada on February 15, 2017. The Canada Directve on Implementaton of CEAA 2012 following the results of the In-Line Inspectons of efects assessment as part of the applicaton was included in the Development Permit Applicaton, the 24-inch pipeline. and no further assessments were requested (Supplemental IR fled on August 4, 2017), and Development Permit addendums were fled on December 22, 2017 and March 18, 2019. 550 Environment Environment Canada Trans Mountain is commited to working with Parks Canada in developing and implementng a set of GoC EC IR No. 2.137 Prior to Constructon Superseded by NEB 72 Commitment addressed by CER Conditon 72, Not yet fled, CER Conditon 72, Reactvaton EPP, Management Objectves / Desired End Results with appropriate monitoring and performance Conditon Appendix F, Page: F-1 to F-10. criteria to ensure ecological integrity management objectves of Jasper Natonal Park are achieved during reactvaton. 552 Environment Environment Canada Trans Mountain will meet the requirements of the Parks Canada directve on human burials in GoC EC IR No. 2.141 Prior to Constructon Complete This commitment is addressed Conditon 72 Reactvaton Pipeline EPP, CER Filing ID C11146, Table 4- Natonal Park and Natonal Historic Sites setngs: Management Directve 2.3.1: Human Remains, 1, Page: 13. Cemeteries and Burial Grounds (Parks Canada 2000). 554 Environment Environment Canada Trans Mountain is willing to consider proposals from Parks Canada Agency to contribute to a positve GoC EC IR No. 2.148 Prior to Constructon Complete A meetng was held on September 15, 2015 to review the EPPs and identfy potental net benefts legacy or net beneft to Jasper Natonal Park and Mount Robson Provincial Park. for further developments. 557 Environment Environment Canada Wetland functon post-constructon monitoring will be conducted to review the area of disturbance GoC EC IR No. 2.052 Prior to Constructon Superseded by NEB 41 Commitment addressed by CER Conditon 41, CER Filing ID A90909, Conditon 41 Wetland Survey and determine whether implemented mitgaton measures were successful and to identfy any Conditon and Mitgaton Plan, Secton 6.0 and 7.0, Page: 39 to 46 describes the performance indicators and wetlands where remedial measures should be implemented to assist with the wetland functon monitoring. recovery if warranted. 562 Environment BC Nature and Nature Trans Mountain commits to consultng with appropriate regulatory agency if there are scheduling BC Nature Nature During Constructon In Progress Meetng minutes with Appropriate Government Authorites, where required due to scheduling Canada conficts related to the sensitve periods for amphibians and the constructon schedule. Cda IR No. 2.38 conficts related to the sensitve periods for amphibians and the constructon schedule. 578 Environment City of Abbotsford The Reclamaton Management Plan for the Project will be developed prior to constructon and will City of Abbotsford IR Prior to Constructon Superseded by NEB 71 Commitment addressed by CER Conditon 71, CER Filing A90936, Conditon 71 Riparian Habitat incorporate re-vegetaton principles for riparian areas in BC that are included in the Riparian Areas No. 2.2.07d, City of Conditon Management Plan, Secton 5.2, Page: 24 to 44. Regulaton (RAR) revegetaton guidelines (BC Ministry of Environment 2012). Abbotsford IR No. 2.2.09d 595 Environment Adams Lake Indian Band Trans Mountain will develop a marine water and sediment sampling plan for use during dredging (if ALIB IR No. 2.03.01 Prior to Constructon No Longer Commitment addressed by CER Conditon 35, CER Filing ID A81712, Conditon 35 Marine Sediment dredging is required). Applicable Management Plan, Page 1 and 2. Dredging no longer required. 596 Environment Adams Lake Indian Band Environmental sampling (if required) will be conducted by a Qualifed Environmental Professional ALIB IR No. 2.03.02b Project Lifecycle Superseded by NEB 72 Commitment addressed by CER Conditon 72, CER Filing ID C01961, Conditon 72 Pipeline EPP, (QEP)-led crew. Conditon Secton 14.1, Page: 77. 597 Environment Adams Lake Indian Band Trans Mountain is commited to further engagement with the Adams Lake Indian Band (ALIB) to ALIB IR No. 2.03.11 During Constructon Superseded by NEB 110 Commitment addressed by CER Conditon 110, Authorizaton(s) under paragraph 35(2)(b) of the discuss ideas regarding an ofset plan (fsh habitat ofset plan) should it be required. Conditon Fisheries Act and Species at Risk permit(s) - pipeline. Proof of completon would be DFO Authorizaton or SARA Permit, if this is required. 598 Environment Adams Lake Indian Band Trans Mountain will provide Draf species-specifc mitgaton plans to Adams Lake Indian Band (ALIB) ALIB IR No. 2.05.5 Prior to Constructon Complete Conditon 44, Williamson’s Sapsucker and Lewis’s Woodpecker Mitgaton and Habitat Restoraton for review. Plan, CER Filing ID A90906, Appendix A, Secton 3.3, Page: A-13 to A-14 Conditon 44, Western Screech-Owl Mitgaton and Habitat Restoraton Plan, CER Filing ID A83034, Appendix A, Secton 3.3, Page: A-11 to A-12 American Badger Mitgaton and Habitat Restoraton Plan, CER Filing ID A83034, Appendix A, Secton 3.3, Page: A-11 to A-12. 599 Environment Upper Nicola Band Trans Mountain is commited to the review of the informaton on huntng, trapping, gathering or Upper Nicola Band Prior to Constructon Complete Conditon 97, Updated Traditonal Land Use and Traditonal Marine Resource Use Investgaton fshing in the area of the Coldwater and Nicola Rivers upon receipt for consideraton in project IR No. 2(c).02 Report, CER Filing ID A85811. planning and contnued engagement with Upper Nicola to discuss mitgaton measures to minimize potental impacts. Trans Mountain notes that the constructon planning schedule requires that this policy be received no later than May 1, 2015. 601 Environment C.G.L.A.P. - Collaboratve Trans Mountain will consult with the Collaboratve Group of Landowners Afected by Pipelines CGLAP IR No. 2.5c Prior to Constructon Complete In email correspondence between Trans Mountain and Peter Reus received on Feburary 6, 2018, Group of Landowners (CGLAP) in developing a list of suitable candidates for an Agricultural Monitor for the Fraser Valley. Peter Reus confrmed that Bruce McTavish is a good choice for CGLAP and acceptable as the Afected by Pipelines agricultural monitor. 606 Environment NEB Trans Mountain commits to monitoring the spawning deterrents at each of the sites where installed, NEB Cond IR No. During Constructon In Progress Proof of completon will be the resource specialist report. to ensure that the deterrents do not shif during open water fows (Spread 2). 15.1b 617 Environment City of Burnaby Wildlife feld work for the Westridge Delivery Pipelines will be completed in 2015 in selected areas City Burnaby IR No. Prior to Constructon Complete Conditon 72, Spread 7 Tunnel RSMT/EAS, CER Filing ID C02201, Conditon 78, Facilites EPP, CER where habitat disturbance will occur associated with the proposed entry and exit points of the 2.074a Filing ID C06991, Appendix D, Page D-9, Conditon 81, Westridge Marine Terminal EPP, CER Filing ID tunnel. C08265, Appendix D, Page: D-2. Aerial Waterbird surveys were completed on May 29, 2015. 618 Environment City of Burnaby An Archaeological Impact Assessment (AIA) will also be conducted on the proposed entry and exit City Burnaby IR No. Prior to Constructon Superseded by NEB 100 Commitment addressed by CER Conditon 100, CER Filing ID C01853, Conditon 100 Heritage points for the tunnel in 2016. 2.074a Conditon Resources and Sacred and Cultural Sites Plan, Secton 3.2, Page: 5 to 6. 619 Environment City of Burnaby If historic contaminaton is discovered on City lands, Trans Mountain commits to notfying the City of City Burnaby IR No. Prior to Constructon Superseded by NEB 72 Commitment addressed by CER Conditon 72, CER Filing ID C01961, Conditon 72 Pipeline EPP, Burnaby and providing a detailed remedial strategy. 2.079b Conditon Secton 1.0 of Appendix B, Atachment B-1, Page: B-3, B1-1.

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620 Environment City of Burnaby Trans Mountain plans to engage with the City of Burnaby regarding the development of an Air City Burnaby IR No. Prior to Constructon Superseded by NEB 52 Commitment addressed by CER Conditon 52, CER Filing ID A84415, Air Emissions Management Plan Emissions Management Plan for the Westridge Marine Terminal per NEB Draf Conditon 19 (August 1.04.14h, City Conditon for Westridge Marine Terminal. Conditon 52j addresses this commitment, Appendix B, Page B-2 (E-1 2015). Burnaby IR No. in PDF). 1.28.01c, City Burnaby IR No. 2.085, City Burnaby IR No. 2.086, FVRD IR No. 2.19, Metro Vancouver IR No. 1.1.6.03i. 623 Environment City of Burnaby If the Burrard Streets Alternatve Alignment is selected, Trans Mountain commits to ensuring that City Burnaby IR No. Prior to Constructon No Longer This commitment is no longer applicable as the Burnaby Mountain tunnel is the proposed Heron Creek is not crossed and silt fencing will be installed to manage run-of to ensure that this 2.094 Applicable authorized route. Conditon 72, CER Filling ID C02201, Westridge Delivery Line EAS, Page All. Other creek is not adversely afected. conditons applicable to the tunnel installaton have also been satsfed. 624 Environment City of Burnaby In the event that the proposed alternatve pipeline corridor for the Westridge Delivery Lines is City Burnaby IR No. Prior to Constructon No Longer Commitment is no longer applicable. The fnalized pipeline alignment is at Burnaby Mountain selected for constructon, a search for heron nests will be completed in the area of Heron Creek and 2.095 Applicable (greater than 60 m from Heron Creek and Burrard Inlet Conservaton Area). Conditon 72, Filing ID the Burrard Inlet Conservaton Area. C02201, Westridge Delivery Line EAS, Page All. 630 Environment City of Burnaby Trans Mountain will discuss the need for additonal wildlife feld work specifc to species of special City Burnaby IR No. Prior to Constructon Complete Meetng with BC FLNRO took place on April 14, 2015 and March 22, 2016 with the conservaton status outside of areas mapped as critcal habitat by Environment Canada (EC) with BC 2.115 Thompson/Okanagan Region. Meetngs with the South Coast Region took place on March 19, 2015 Ministry of Forests, Lands and Natural Resource Operatons (MFLNRO). and February 15, 2016. During these meetngs, wildlife feld work related to critcal habitat identfed by ECCC was discussed. 635 Environment City of Burnaby Any disturbance to existng riparian vegetaton or compensaton areas will be re-established by Trans City Burnaby IR No. During Constructon Superseded by NEB 71 Commitment addressed by CER Conditon 71, CER Filing A90936, Conditon 71 Riparian Habitat Mountain during the constructon and reclamaton phases of the project. 2.136;NEB Route Conditon Management Plan, Secton 5.2, Page: 24. Hearing TMEP Evidence Seg 7 Burnaby 647 Environment The City of Edmonton Trans Mountain will work with the City of Edmonton to determine where landscaping will be City of Edmonton IR Project Lifecycle In Progress Proof of completon will be the tree management plan and additonal landscaping requirements as required in areas of the Whitemud Extension pipeline corridor afected by constructon. No. 2.2.3b accepted by the City of Edmonton. 653 Environment City of Kamloops Trans Mountain will review the new City of Kamloops Park Management Plan (if complete) prior to City of Kamloops IR During Constructon Complete City of Kamloops did not complete the Park Management Plan (search for updated plan completed reclamaton planning. No. 2.05 on Nov 24, 2020). 658 Environment City of New Westminster Trans Mountain will discuss potental overlap of the sensitve life-history phases of species with City New Prior to Constructon Superseded by NEB 110 Commitment addressed by CER Conditon 110, CER Filing ID C07943, Conditon 110 Authorizatons special conservaton status with the appropriate regulatory authority with respect to the Brunete Westminster IR No. Conditon under the Fisheries Act and Species at Risk permits, Brunete River 19-HPAC-00570. Authorizaton Conservaton Area. 2.A.3 requires addresses this commitment. 660 Environment City of New Westminster Trans Mountain is commited to exploring ways to help the further recovery of aquatc ecosystems in City New Prior to Constructon Complete Per CVIR 2021-395 IR Package 3 (IR#22), Trans Mountain has obtained Fisheries Act Authorizaton the Brunete River Conservaton Area that may be afected by TMEP. Westminster IR No. (19-HPAC-00570) for the works adjacent to the Brunete River. As part of the Applicaton for 2.A.3.vii Authorizaton, Trans Mountain’s detailed ofsetng plan outlines enhancement to both instream habitat and riparian areas along reaches of the Brunete River. Both these projects will contribute to an overall enhancement of the Brunete River watershed. The approved authorizaton and linked ofset plan demonstrate our commitment to explore the recovery of aquatc ecosystems in the Brunete River Conservaton Area. 662 Environment NEB Trans Mountain commits to monitoring the efectveness of spawning deterrents within spread 6 to NEB Cond IR No. During Constructon In Progress Proof of completon will be the resource specialist report. confrm success. 15.1b 669 Environment NEB Trans Mountain commits to additonal spawning surveys if deterrents cannot be installed at Swif NEB Cond IR No. Prior to Constructon Complete Summary of 2017 Spawning Deterrent Monitoring and Maintenance Actvites and Efectveness Creek or Albreda River (BC-82a). 15.1a Monitoring report was submited to the CER via email on March 29, 2018 as part of CV1718-332. 670 Environment NEB Trans Mountain commits to developing site-specifc mitgaton, remediaton and/or monitoring NEB Cond IR No. Prior to Constructon Superseded by NEB 46 Proof of Completon: CER Filing ID C08055, Conditon 46 Site-Specifc Management Plan – measures during constructon to manage impacted materials appropriately and ensure worker 1.18e Conditon Surrey/Langley Industrial Area. The Plan addresses this commitment. health and safety and protecton of the environment, at the S&R Mills and adjacent City of Surrey lands frontng 19399 98A Ave, within the pipeline constructon area. Site-specifc plans will be fled with NEB 2 months prior to constructon in the area of the high risk site. 671 Environment NEB Trans Mountain commits to developing a site-specifc plan to address mitgaton and remedial NEB Cond IR No. Prior to Constructon Complete CER Filing ID C00706, Conditon 46 Site-Specifc Management Plan – Ellerslie. The Plan addresses measures specifc to the contaminants of concern for the Former Ellerslie Waste Management 20.1.13c, d this commitment. Facility (FEWMF) site to prevent the pipeline trench from becoming a conduit for contaminaton. Site-specifc plans will be fled with NEB 2 months prior to constructon in the area of the high risk site. 672 Environment NEB Trans Mountain commits to developing a health and safety plan to mitgate against worker and NEB Cond IR No. Prior to Constructon Complete CER Filing ID C00706, Conditon 46 Site-Specifc Management Plan – Ellerslie, Secton 7.0, Page: 19. public exposure to the contaminants of concern at the Former Ellerslie Waste Management Facility 20.1.13c (FEWMF) site. Site-specifc plans will be fled with NEB 2 months prior to constructon in the area of the high risk site. 674 Environment NEB Trans Mountain will provide the supplemental wildlife and vegetaton data (that will be collected in NEB Cond IR No. During Constructon Complete Conditon 71 CER Filing ID A88882, Riparian Habitat Management Plan Updated Appendix E. August and September 2017) and the updated riparian habitat functon assessment to the Board, on 29.3c or before December 31, 2017. 677 Environment NEB Trans Mountain commits to restoring riparian habitat within the 30 m reserve strip of the Brunete NEB Cond IR No. Prior to Operatons Scoping Proof of completon is the Conditon 151 Post-constructon environmental monitoring reports. River that is disturbed as a result of constructon actvites, using a High Reclamaton Target criteria. 30.2b

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681 Environment NEB Trans Mountain commits to updatng the Water Quality Monitoring Plan for the Coquihalla River NEB Cond IR No. During Constructon Scoping Proof of completon is the Site-Specifc plan for the Coquihalla River (BC-654). (BC-654, in Hope) crossing, with parts a) - f) as identfed in NEB IR No. 35.4. 35.4 687 Environment NEB Trans Mountain will fle the results of the air emissions monitoring program during operatons at the NEB Cond IR No. During Operatons Scoping Proof of completon are the annual reports outlining the results of the air emissions monitoring Edmonton Terminal with the Board annually. 32.5 program at Edmonton Terminal to be fled with the CER. 688 Environment NEB Trans Mountain will fle the results of the air emissions monitoring program during operatons at the NEB Cond IR No. During Operatons Scoping Proof of completon are the annual reports outlining the results of the air emissions monitoring Sumas Terminal with the Board annually. 32.5 program at Sumas Terminal to be fled with the CER. 689 Environment NEB Trans Mountain will fle the results of the air emissions monitoring program during operatons at the NEB Cond IR No. During Operatons Scoping Proof of completon are the annual reports outlining the results of the air emissions monitoring Burnaby Terminal with the Board annually. 32.5 program at Burnaby Terminal to be fled with the CER. 690 Environment Mets Naton of Alberta Trans Mountain commits to not disturbing any known burial sites or cemeteries registered with Gunn Méts Local 55 During Constructon Complete No known burial sites will be disturbed under the current route. All future potental route changes Gunn Mets Local 55 Service Alberta under the Cemeteries Act or registered with Alberta Culture and Tourism under the IR No. 2.26 will avoid any sites. Should a burial site be identfed during constructon, the Heritage Resources Historical Resources Act during the Project. Discovery Contngency Plan and Traditonal Land Use Sites Discovery Contngency Plan, Secton 6.0 and 12.0, respectvely will be implemented. 691 Environment Mets Naton of Alberta Mets Naton of Alberta Gunn Mets Local 55 will be informed and consulted regarding all sacred Gunn Méts Local 55 During Constructon Superseded by NEB 72 Commitment addressed by CER Conditon 72, CER Filing ID C01961, Conditon 72 Pipeline EPP, Gunn Mets Local 55 sites that may be discovered during constructon of the Project through their traditonal territory. IR No. 2.29 Conditon Secton 12 in Appendix B, Page: B-33 to B-35. 692 Environment Mets Naton of Alberta In the event a heritage site is discovered, a qualifed Heritage Resource specialist will develop, if Gunn Méts Local 55 During Constructon Superseded by NEB 72 Commitment addressed by CER Conditon 72, CER Filing ID C01961, Conditon 72 Pipeline EPP, Gunn Mets Local 55 warranted, an appropriate mitgaton plan in consultaton with the Lead Environmental Inspector(s), IR No. 2.30 Conditon Secton 6.0 in Appendix B, Page: B-17 to B-18. the Lead Actvity Inspector(s) and the Constructon Manager, and/or appropriate regulatory authority, as well as the applicable Aboriginal communites. 693 Environment Natural Resources Canada Trans Mountain has previously commited to update its assessment of air quality as the Project’s GoC F-IR No. 2.01 Prior to Constructon Complete Human Health Risk Assessment of Westridge Marine Terminal for the Trans Mountain Expansion engineering design nears or reaches completon. If this air quality assessment reveals further Project – 2017 Update, CER Filing ID A86300. increases in the concentratons of Project-related air pollutants over populated areas under the Base, Applicaton or Cumulatve Cases, Trans Mountain will update the human health risk assessment (HHRA). If Trans Mountain updates the HHRA, it would undertake to submit the updated assessment as a conditon of approval on any Certfcate that the NEB may grant. 694 Environment Peters Band Trans Mountain will retain Environmental Inspectors and Monitors with an understanding of the Peters Band IR No. During Constructon Superseded by NEB 46, 72 Commitment addressed by CER Conditon 46 and 72. CER Filing ID C01961 Conditon 72 Pipeline Contaminated Sites Regulaton (B.C. Reg. 4/2014) and sampling protocols (BC Ministry of 2(b).2.5(a) Conditon EPP, Sectoion 1.0 in Appendix B, Page: B-3 to B-5. Conditon 46, CER Filing ID A90938, Contaminaton Environment 2009). If sampling is required it will be conducted under the directon of a Identfcaton and Assessment Plan, Secton 5.2, Page: 21. Contaminated Sites Approved Professional (CSAP). 695 Environment Mets Naton of Alberta Trans Mountain is commited to the development of the Reclamaton Management Plan. The Gunn Méts Local 55 Prior to Constructon Superseded by NEB 72 Commitment addressed by CER Conditon 72, CER Filing ID A86570, Conditon 72 Reclamaton Gunn Mets Local 55 Reclamaton Management Plan will also be developed in consultaton with landowners, Aboriginal IR No. 2.48 Conditon Management Plan. The plan addresses this commitment. communites and the applicable Crown land managers. 696 Environment Horse Lake First Naton Trans Mountain is commited to retain Aboriginal Monitors and is developing the details of Horse Lake FN IR No. Prior to Constructon Superseded by NEB 98 Commitment addressed by CER Conditon 98, CER Filing ID C00105, Conditon 98 Plan for Aboriginal Monitor partcipaton through contnued engagement with Aboriginal groups. 2.1 Conditon Indigenous Group Partcipaton in Constructon Monitoring, Entre Plan outlines Trans Mountain's plan and commitment to retain Indigenous Monitors. 699 Environment Horse Lake First Naton Trans Mountain will consult with Horse Lake First Naton during the development of the detailed Horse Lake FN IR No. Prior to Constructon Complete An email was sent out to Horse Lake First Naton representatves requestng feedback to the Reclamaton Management Plan. 2.4b Reclamaton Management Plan, CER Filing ID A85996. Consultaton records are provided in Secton 3.3 of Appendix J, Appendix K, Page: J-17, K-1. 702 Environment Peters Band Trans Mountain commits to having Inspectors and Monitors responsible for identfying and Peters Band IR No. During Constructon Superseded by NEB 72 Commitment addressed by CER Conditon 72, CER Filing ID C01961, Conditon 72 Pipeline EPP, mitgatng Environmental efects, including contaminaton. 2(b).2.5(b) Conditon Secton 6.0, 11.0, Appendix G, Page: 14, 58, G-45. 706 Environment Peters Band Trans Mountain will use chemical monitoring of groundwater on Peters Band reserve lands in areas Peters Band IR No. Prior to Constructon Superseded by NEB 46, 72 Commitment addressed by Conditon 46, CER Filing ID A90938, Conditon 46 Contaminaton where the contaminated sites review identfes a risk of contaminaton and there are relevant 2(b).2.5(b) Conditon Identfcaton and Assessment Plan, Secton 4.0, Page: 8 to 9. Conditon 72, CER Filing ID C01961, accessible water wells available. Conditon 72 Pipeline EPP, Secton 1.0 in Appendix B, Page: B-3 to B-5. 707 Environment Living Oceans Society Trans Mountain will provide the requested input fles used to perform the CALMET/CALPUFF Living Oceans IR No. Prior to Constructon In Progress Proof of completon will be the transmital records of the data to Living Oceans. dispersion modelling for the Marine Air Quality and Greenhouse Gas Marine Transportaton 2.1 Technical Report for the Trans Mountain Expansion Project, Supplemental Report No. 2 (December 2014) (Marine Supplemental Report No. 2) (Filing ID A4F5H8) directly to Living Oceans on a USB stck (Living_Oceans_IR_No._2.1 – Atachment 1). 708 Environment Living Oceans Society Notwithstanding the limitatons due to confdentality and intellectual property outlined above, in Living Oceans IR No. Prior to Constructon In Progress Proof of completon will be the transmital records of the data to Living Oceans. additon to the name lists, run scripts, and emission descriptons, Trans Mountain agrees to supply 2.2 the fles that are specifc to the estmated Project emissions at the tme of the Applicaton, outside of the Natonal Energy Board fling process. Trans Mountain will send these fles directly to the Intervenor on a USB stck (Living_Oceans_IR_No._2.2 - Atachment 1). 710 Environment Township of Langley Trans Mountain Pipeline ULC (Trans Mountain) commits to pre-constructon sampling of water wells Langley IR No. 2.08.a Prior to Constructon Superseded by NEB 93 Commitment addressed by CER Conditon 93, CER Filing ID A84458, Conditon 93 Water Well that are 10 m deep or less within 150m of the proposed right-of-way. Conditon Inventory, Secton 2.0, Appendix D, Page: 6, D-1. 712 Environment NEB Prior to constructon, Trans Mountain commits to completng an intrusive investgaton within the NEB Cond IR No. Prior to Constructon Complete Trans Mountain prepared the Summary of Soil Sampling Investgaton Kilometre Post 98 – Project constructon footprint in the vicinity of the Former Asbestos Dump identfed by the Gunn 53.1b Wabamun, Alberta in August 2018. The purpose of the investgaton was to confrm the presence/ Méts to confrm the presence/absence of asbestos. absence of a former dump area, potentally containing buried asbestos. 715 Environment NEB In order to reduce the potental efects of disturbing contaminated soils during project actvites, NEB Cond IR No. Project Lifecycle In Progress Proof of completon will be the transmital records for the Phase 1 Reports. Trans Mountain commits to providing contractors with a site plan showing areas of potental 42.5 concern for high and moderate risk sites for the applicable temporary work spaces in Spread 5A.

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716 Environment Township of Langley Trans Mountain is commited to removing all constructon materials during fnal clean-up and Langley IR No. During Constructon Superseded by NEB 72 Commitment addressed by CER Conditon 72, CER Filing ID C01961, Conditon 72 Pipeline EPP, reclamaton. 2.12.b Conditon Secton 13.0, Page: 64. 718 Environment NEB In order to reduce the potental efects of disturbing contaminated soils during project actvites, NEB Cond IR No. Project Lifecycle In Progress Proof of completon will be the transmital records for the Phase 1 Reports. Trans Mountain commits to providing contractors with a site plan showing areas of potental 42.5 concern for high and moderate risk sites for the applicable temporary work spaces in Spread 5B. 719 Environment Township of Langley Trans Mountain is prepared to discuss with the Township of Langley the need for and costs of Langley IR No. 2.13.e Prior to Constructon Complete A TWG meetng occurred on August 28, 2018 which included discussions related to erosion control additonal inspecton to ensure potental issues related to erosion control and sedimentaton are and sediment management during constructon. managed during constructon. 720 Environment Township of Langley Trans Mountain commits to meet with the Township of Langley to further discuss the concerns Langley IR No. Prior to Constructon Superseded by NEB 71 Commitment addressed by CER Conditon 71, CER Filing A90936, Conditon 71 Riparian Habitat regarding riparian vegetaton. 2.14.b Conditon Management Plan, Appendix C, Page: C-8. 724 Environment NEB Trans Mountain commits to identfying the Former Asbestos Dump identfed by the Gunn Mets in NEB Cond IR No. Prior to Constructon Complete Conditon 72, Spread 2 Environmental Alignment Sheets, CER Filing ID C00475, Page: AB-037. the updated Environmental Alignment Sheets. 53.1d 726 Environment NEB In the event that either of the 2 Horizontal Directon Drills (HDDs) planned for Pacifc water shrew NEB Cond IR No. During Constructon Superseded by NEB 44 Commitment addressed by CER Conditon 44, CER Filing ID A90911, Conditon 44 Pacifc Water critcal habitat fail and a contngency crossing method is required, Trans Mountain commits to 8.2b Conditon Shrew Mitgaton and Habitat Restoraton Plan, Secton 5.2, Page: 26. providing a descripton of any appropriate site-specifc mitgaton and habitat enhancement measures, and reclamaton prescriptons in the compliance fling for NEB Conditon 108 (Contngency Watercourse Crossings). 728 Environment NEB Trans Mountain commits to using 'the collecton of natve seed from component species of rare NEB Cond IR No. Prior to Constructon Superseded by NEB 42 Commitment addressed by CER Conditon 42, CER Filing ID A84318, Conditon 42 Grasslands Survey ecological communites, and propagatng new plants from the seed (rooted plugs)' as the primary 10.4 Conditon and Mitgaton Plan, Secton 5.3.5, Page: 32. method to restore species to the rare ecological communites. If seed of the component species is not available, plant salvage and transplant will be used. 729 Environment NEB Trans Mountain commits that, if there is no change from baseline to Post-Constructon NEB Cond IR No. Prior to Operatons Superseded by NEB 42 Commitment addressed by CER Conditon 42, CER Filing ID A84318, Conditon 42 Grasslands Survey Environmental Monitoring (PCEM) targets or if there is an upward trend, Trans Mountain will 10.5 Conditon and Mitgaton Plan, Secton 6.0, Page: 40. consider the mitgaton and reclamaton measures to be resolved successfully, however monitoring at the locaton will contnue untl the fnal tenth year of PCEM, when all transects will be monitored. 731 Environment NEB Trans Mountain commits to establishing additonal post-constructon environmental monitoring NEB Cond IR No. During Operatons Superseded by NEB 42 Commitment addressed by CER Conditon 42, CER Filing ID A84318, Conditon 42 Grasslands Survey (PCEM) transects in natve grassland areas if environmental issues are identfed during overfights or 10.5 Conditon and Mitgaton Plan, Secton 8.2, Page: 51. during operatons maintenance actvites. 735 Environment NEB Trans Mountain commits that funding to BC Parks for grasslands ofsets will include funds for NEB Cond IR No. Prior to Operatons Superseded by BC 21 Commitment addressed by EAO Conditon 21, not yet fled, to be submited for EAO’s approval six monitoring and reportng on the implementaton and efectveness of ofset measures. 10.6b EAO months before the commencement of Operatons. 741 Environment NEB Trans Mountain commits that if feedback is received from Environment and Climate Change Canada NEB Cond IR No. During Operatons Superseded by NEB 37 Commitment addressed by CER Conditon 37, Not yet fled (on or before 1 November afer the frst related to the quantfcaton of direct and indirect habitat disturbance as outlined in the Pre- 12.3 Conditon complete growing season afer completng fnal clean-up.) Conditon 37b Final Caribou Habitat constructon Caribou Habitat Assessment fled June 2017, it will be considered and incorporated into Restoraton Plan any updated analyses required to address NEB Conditon 37b(vi) (Final Caribou Habitat Restoraton Plan). 742 Environment NEB Trans Mountain commits to the monitoring of survivorship of planted tree seedlings as part of the 5- NEB Cond IR No. During Operatons Superseded by NEB 38 Commitment addressed by CER Conditon 38, CER Filing ID A85803, Conditon 38 Sowaqua Spoted year Post-Constructon Environmental Monitoring (PCEM), using the measurable target of a 14.10a Conditon Owl Mitgaton Plan, Secton 6.0, 7.3 (Table 10), Page: 27, 31. minimum 80% survivorship of supplemental tree plantng within 5 years, in the Sowaqua Spoted Owl WHA. 744 Environment NEB Trans Mountain commits to the monitoring of retenton and replacement of identfed suitable nest NEB Cond IR No. During Constructon Superseded by NEB 38 Commitment addressed by CER Conditon 38, CER Filing ID A85803, Conditon 38 Sowaqua Spoted trees, using the measurable target that for each identfed suitable nest tree for spoted owl that 14.10h Conditon Owl Mitgaton Plan, Secton 5.3 (Table 6), Page: 19. may be removed within the Sowaqua Spoted Owl WHA, it will be retained or replaced with an alternate nestng habitat feature. 748 Environment Squamish Naton Trans Mountain commits to completng an assessment of the potental for serious harm resultng Squamish Naton IR During Operatons In Progress As the commitment sets out, Trans Mountain will make any such applicable assessment on a case- from a spill during the operaton phase, including appropriate cleanup, mitgaton, and potental No. 2(c).01.g specifc basis during the operatons phase. ofset measures if warranted. The assessment will be completed on a case-by-case basis, as required (i.e., where there may be potental for adverse efects to fsh and fsh habitat). 751 Environment Upper Nicola Band Should additonal unmapped fsh-bearing watercourses be identfed during survey or a route walk Upper Nicola Band Prior to Constructon Superseded by NEB 72 Commitment addressed by CER Conditon 72, CER Filing ID C01961, Conditon 72 Pipeline EPP, prior to constructon, Trans Mountain will assess these watercourses for the potental for Serious IR No. 2(c).06.e Conditon Secton 14.1, Page: 83. Harm. 754 Environment Katzie First Naton Provide Katzie First Naton with a 1:5,000 scale map (Reference (i), map number Katzie FN IR No. 2 Prior to Constructon Complete Files were transferred via secure fle transfer on March 25, 2015. 201501_MAP_TERA_HER_00669_REV0) of all known archaeological sites located within 500 m of 2.02 the Project Footprint, including sites DgRp-10, DhRq-17, DgRq-85, DhRq-36 and DhRq-43 if they are not already captured. 755 Environment Katzie First Naton Wildlife surveys within Surrey Bend Regional Park will be conducted once land access is granted. Katzie FN IR No. 2 Prior to Constructon Complete Conditon 7, CER Filing ID A82140, South Fraser Perimeter Road Route Realignment Environmental 2.04 and Socio-Economic Assessment, Secton 3.9, Page: 11. 758 Environment Upper Nicola Band Trans Mountain is commited to applying appropriate mitgaton strategies during the constructon Upper Nicola Band During Constructon Superseded by NEB 43 Commitment addressed by CER Conditon 43 , CER Filing ID A82366, A82369, A82390, A82392, of all the Project’s watercourse crossings. Specifc to watercourses that provide fsh habitat, the IR No. 2(c).07.e Conditon A82395, A82397, A82400, A82405, A82409 (original fling) , CER Filing ID C00815, Conditon 43 Project will incorporate standard measures outlined by the Fisheries and Oceans Canada (DFO) Watercourse Crossing Inventory Update (Appendix A-D), CER Filing ID C08399 (Spread 4b update), Measures to Avoid Causing Harm to Fish and Fish Habitat and, if warranted, alternatve or CER Filing ID C08687 (Spread 1 and 2 update), CER Filing ID C10251 (Spread 5a update). Complete supplemental mitgaton measures. documents address this commitment.

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763 Environment NEB Trans Mountain will take a proactve approach to Burnaby Mountain tunneling operatons and NEB IR No. 4 3c Prior to Constructon Superseded by NEB 72 Commitment addressed by CER Conditon 72, CER Filing ID C08263, Burnaby Mountain Tunnel EPP, associated actvites and will require all machinery and equipment to be maintained and operated to Conditon Secton 7.0, Page 7-7. manufacturer’s standards and to the regulatory conditons of air emissions and constructon permits. 765 Environment Province of Britsh Columbia Trans Mountain will accurately refect the locaton of drinking water supply sources within 100 m of Province BC IR No. Prior to Constructon Superseded by NEB 93 Commitment addressed by CER Conditon 93, CER Filing ID A84458, Conditon 93 Water Well the pipeline, its facility, or areas that could be impacted from a release as modeled in Applicaton 2.11 Conditon Inventory, Secton 2.0, Appendix D, Page: 4, D-1. Volume 7, Secton 3 (Filing ID A3S4V5) based on informaton available from Provincial and Municipal permitng agencies. 766 Environment Province of Britsh Columbia Trans Mountain will work with communites that have specifc concerns related to protecton of Province BC IR No. During Operatons Superseded by NEB 130 Commitment addressed by CER Conditon 130, Not yet fled (at least 3 months prior to commencing municipal water sources and will consider installaton of monitoring wells in strategic locatons. 2.12 Conditon operatons), Conditon 130 Groundwater Monitoring Program. 768 Environment NEB Trans Mountain will restore disturbed riparian zones. NEB IR No. 4 7a During Constructon Superseded by NEB 71 Commitment addressed by CER Conditon 71, CER Filing A90936, Conditon 71 Riparian Habitat Conditon Management Plan, Secton 5.2, Page: 24. 773 Environment NEB Trans Mountain will include a Dust Mitgaton Plan as a component of the Fugitve Emissions NEB IR No. 4 03a.4 Prior to Constructon Superseded by NEB 53 Commitment addressed by Conditon 53, Fugitve Emissions Management Plan for the Westridge Management Plans which must be submited to the Natonal Energy Board (NEB) at least four Conditon Marine Terminal, CER Filing ID A84416. Sectons 3.0 and 4.0 ID, Page: 5, 9 to 10. months prior to commencing constructon in accordance with NEB Draf Conditon (April 2014) 20 (Westridge Marine Terminal) of the NEB’s Leter. 777 Environment NEB With respect to mitgaton measures, Trans Mountain will align with the broader strategies identfed NEB IR No. 4.07 Prior to Constructon Superseded by NEB 75 Commitment addressed by CER Conditon 75, CER Filing ID C01961, Pipeline EPP (Appendix G in the Recovery Strategy for Nooksack dace and Salish sucker. Conditon Nooksack Dace (NDC) and Salish Sucker (SSU) Management Plan), Secton 3.3 in Appendix A, Page: E-7 to E-9. 780 Environment NEB Trans Mountain will ensure that adequate riparian setbacks are maintained for all watercourse NEB IR No. 4 7c During Constructon Superseded by NEB 71, 72 Commitment addressed by CER Conditon 71, 72, CER Filing ID C01961, Conditon 72 Pipeline EPP, crossings and that the amount of riparian vegetaton removal is limited during constructon. Conditon Secton 8.0, 14.1, Secton 8.6 in Appendix G of the Pipeline EPP (Riparian Habitat Management secton) Page: 35, 79, G-158. 784 Environment NEB Trans Mountain will revise additonal site-specifc mitgaton measures for watercourses identfed as NEB IR No. 4.07 Prior to Constructon Superseded by NEB 75 Commitment addressed by CER Conditon 75. Mitgaton measures are outlined in Conditon 72, CER critcal Nooksack dace to include similar riparian reserve measures proposed for Salish sucker which Conditon Filing ID C01961, Conditon 72 Pipeline EPP, Secton 8.1 in Appendix G, Page: G-132. will be included in fnal Pipeline Environmental Protecton Plan, to be fled with the NEB, at least 90 days prior to constructon in accordance with NEB draf conditon No. 29. 792 Environment NEB Trans Mountain will include additonal site-specifc mitgaton measures for watercourses identfed NEB IR No. 4.07 Prior to Constructon Superseded by NEB 75 Commitment addressed by CER Conditon 75. Mitgaton measures are outlined in Conditon 72, CER as critcal Nooksack dace and Salish sucker habitat in the fnal Pipeline Environmental Protecton Conditon Filing ID C01961, Conditon 72 Pipeline EPP, Secton 8.1 in Appendix G, Page: G-138, G-142 to G-143. Plan, to be fled with the NEB, at least 90 days prior to constructon in accordance with NEB draf conditon No. 29. 796 Environment NEB Although no Oregon spoted frog were identfed during the March 2015 surveys, Trans Mountain NEB IR No. 4 10 Prior to Constructon Superseded by NEB 44 Commitment addressed by CER Conditon 44, CER Filing ID A90907, Conditon 44 Oregon Spoted will contnue to work with BC Ministry of Forests, Lands and Natural Resource Operatons (MFLNRO) Conditon Frog Mitgaton and Habitat Restoraton Plan, Secton 5.2, Appendix B, Page: 18, Page B-2. to discuss mitgaton measures for Oregon spoted frog. 798 Environment NEB Trans Mountain will update Table L2 of the Pipeline Environmental Protecton Plan (EPP) to more NEB IR No. 4 10 Prior to Constructon Superseded by NEB 44 Commitment addressed by Conditon 44, Western Screech-Owl Mitgaton and Habitat Restoraton clearly link the mitgaton measures already listed in the EPP to Western barn owl. Conditon Plan, CER Filing ID A90910, Appendix A, Page: A-3 to A-8. American Badger Mitgaton and Habitat Restoraton Plan, CER Filing ID A85074, Appendix A, Page: A-3 to A-9. 800 Environment NEB Trans Mountain will prepare Mitgaton Plans for the Oregon forest snail and Oregon spoted frog. NEB IR No. 4 10 Prior to Constructon Superseded by NEB 44 Commitment addressed by CER Conditon 44, CER Filing ID A90907, Conditon 44 Oregon Spoted Conditon Frog Mitgaton and Habitat Restoraton Plan, Plan addresses this commitment. CER Filing ID A85185, Conditon 44 Oregon Forest snail Mitgaton and Habitat Restoraton Plan, Plan addresses this commitment. 803 Environment NEB Trans Mountain will specifcally update Table L2 in the Pipeline Environmental Protecton Plan (EPP), NEB IR No. 4 10 Prior to Constructon Superseded by NEB 44 Commitment addressed by Conditon 44, Western Screech-Owl Mitgaton and Habitat Restoraton to link mitgaton measures already provided in the EPP to species with early candidate critcal Conditon Plan, CER Filing ID A90910, Appendix A, Page: A-3 to A-8. American Badger Mitgaton and Habitat habitat of the American badger (jefersonii subspecies), Western barn owl and Western screech owl Restoraton Plan, CER Filing ID A85074, Appendix A, Page: A-3 to A-9. (macfarlanei and kennicoti subspecies). 804 Environment Upper Nicola Band Soil inspecton site 71BH will be added to the revised Environmental Alignment Sheets when they Upper Nicola Band Prior to Constructon Superseded by NEB 72 Commitment addressed by CER Conditon 72, CER Filing ID C03921, Spread 5a Environmental are submited in advance of constructon. IR No. 2.17b Conditon Alignment Sheets, Page BC-113. 806 Environment Upper Nicola Band Buntzen and shallow Buntzen soils were identfed during a supplemental soil survey. These soil units Upper Nicola Band Prior to Constructon Superseded by NEB 72 Commitment addressed by CER Conditon 72, CER Filing ID C0463, Spread 5a RSMT, Secton 8.1, will be mapped in relaton to the Project footprint on the Environmental Alignment Sheets that will IR No. 2.24c Conditon Page: 71, 74, EAS, Page: All, CER Filing ID C05600, Spread 5b RSMT, Secton 8.1, Page: 45, 48, EAS, be issued prior to the commencement of constructon. Page: All. 807 Environment Upper Nicola Band Detailed reclamaton strategies for sensitve areas will be fnalized before constructon and Upper Nicola Band Prior to Constructon Superseded by NEB 72, 78, 81 Commitment addressed by Conditon 72, 78, 81, CER Filing ID A86570, Conditon 72 Reclamaton appropriate seed mixes and seeding strategies will be developed in consultaton with the land owner IR No. 2.24d Conditon Management Plan, Appendix E, Page: 1 to 41 (appendix E) covers KP 806.6 to KP 990.3. or appropriate regulatory agency. 808 Environment Upper Nicola Band Trans Mountain will consult with the Upper Nicola Band First Naton regarding their concerns during Upper Nicola Band Prior to Constructon Superseded by NEB 72 Commitment addressed by CER Conditon 72, CER Filing ID A86570, Conditon 72 Reclamaton the development of detailed reclamaton planning and prior to the fnalizaton of the Reclamaton IR No. 2.24f Conditon Management Plan, Appendix J, Page: J-13 to J-16, K-4. Management Plan.

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809 Environment NEB Trans Mountain will consult with the appropriate regulatory authority to discuss project routng in NEB IR No. 4 10 Prior to Constructon Superseded by NEB 44 Commitment addressed by Conditon 44, CER Filing ID A90910, Conditon 44 Western Screech-Owl relaton to early candidate critcal habitat and recommend feld visit to review the presence of Conditon Mitgaton and Habitat Restoraton Plan, Appendix A, Page: A-3 to A-8. CER Filing ID A85074, biophysical atributes of key critcal habitat. American Badger Mitgaton and Habitat Restoraton Plan, CER Filing ID A85074, Appendix A, Page: A-3 to A-9. CER Filing ID A90911 Conditon 44 Pacifc Water Shrew Mitgaton and Habitat Restoraton Plan Appendix A, Page: A-4 to A-10. CER Filing ID A90905, Conditon 44 Coastal Giant Salamander Mitgaton and Habitat Restoraton Plan, Appendix A, Page: A-2 to A-5. CER Filing ID A85074, Conditon 44 Townsend’s Mole Mitgaton and Habitat Restoraton Plan, Appendix, Page: B- 4 to B-6 CER Filing ID A90906, Conditon 44 Williamson’s Sapsucker and Lewis’s Woodpecker Mitgaton and Habitat Restoraton Plan, Appendix A, Page: A-3 to A-9 CER Filing ID A90907, Conditon 44 Oregon Spoted Frog Mitgaton and Habitat Restoraton Plan, Appendix B, Page: B-3 to B-7 CER Filing ID A85074, Conditon 44 Barn Owl Mitgaton and Habitat Restoraton Plan, Appendix A, Page: A-3 to A-6 CER Filing ID A85074, Conditon 44 Great Basin Spadefoot Mitgaton and Habitat Restoraton Plan, Appendix A, Page: A-4 to A-8 CER Filing ID A85074, Conditon 44 Oregon Forestsnail Mitgaton and Habitat Restoraton Plan, Appendix A, Page: A-3 to A-7 CER Filing ID A85074, Conditon 44 Western Ratlesnake and Great Basin Gophersnake Mitgaton and Habitat Restoraton Plan, Appendix A, Page: A-3 to A-6. 811 Environment Upper Nicola Band The requested Watercourse Crossing Summary Table will be updated closer to constructon, should Upper Nicola Band Prior to Constructon Superseded by NEB 43 Commitment addressed by CER Conditon 43 , CER Filing ID A82366, A82369, A82390, A82392, additonal unmapped watercourses be identfed and assessed during the survey or a fnal route IR No. 2.31e Conditon A82395, A82397, A82400, A82405, A82409, Conditon 43 Watercourse Crossing Inventory original walk. fling , CER Filing ID C00815, Update (Appendix A-D), CER Filing ID C08399, Spread 4b update, CER Filing ID C08687, Spread 1 and 2 update, CER Filing ID C10251, Spread 5a update. Complete documents address this commitment. 812 Environment Upper Nicola Band Estmates for riparian disturbance will be assessed and updated, should additonal unmapped Upper Nicola Band Prior to Constructon Superseded by NEB 71 Commitment addressed by CER Conditon 71, CER Filing A90936, Conditon 71 Riparian Habitat defned watercourses be identfed during survey or a route walk prior to constructon. IR No. 2.31f Conditon Management Plan, Secton 3.2, Page: 11. 815 Environment Fraser Valley Regional Trans Mountain will work with the Fraser Health Authority (FHA), regarding Project constructon FVRD IR No. 2.02 Prior to Constructon Superseded by NEB 94 Commitment addressed by CER Conditon 94, CER Filing ID A84464, Conditon 96 Consultaton District actvites to identfy and develop resolutons to potental and specifed concerns for the protecton Conditon Report – Protecton of Municipal Water Sources, Table 5, Page: 24. of drinking water supplies in the Fraser Valley Regional District (FVRD). 818 Environment NEB Trans Mountain commits to ensuring that any updates to performance indicators and targets NEB Cond IR No. During Operatons Superseded by NEB 38 Commitment addressed by CER Conditon 38, CER Filing ID A85803, Conditon 38 Sowaqua Spoted included in the re-fled Sowaqua Spoted Owl Mitgaton Plan will be provided in the relevant 14.10i Conditon Owl Mitgaton Plan, Secton 7.4, Page: 32. sectons of the Post-Constructon Environmental Monitoring (PCEM) reports for Sowaqua spoted owl. 820 Environment NEB Trans Mountain commits to considering, where sufcient supplemental material and storage is NEB Cond IR No. During Constructon Superseded by NEB 38 Commitment addressed by CER Conditon 38, CER Filing ID A85803, Conditon 38 Sowaqua Spoted available and wildfre risk guidelines allow, replacement of 75 m3/ha of coarse woody debris within 14.7 Conditon Owl Mitgaton Plan, Secton 5.3 (Table 6), Page: 21. the Project Footprint in the Sowaqua Spoted Owl Wildlife Habitat Area. 821 Environment Fraser Valley Regional Trans Mountain commits to consult with the Lower Fraser Valley Air Quality Coordinatng Commitee FVRD IR No. 2.10, Prior to Constructon Complete Reply Evidence Appendix 33C - Air Quality Modelling, Updated Community Mult-scale Air Quality District commencing in Q1 2015 in the development of the Community Mult-Scale Air Quality (CMAQ) GoC NRCan IR No. (CMAQ) Photochemical Modelling for the TMEP, CER Filing ID A4S7I6. Reply Evidence Appendix 33A modelling plan for additonal CMAQ modelling. 2.01, Metro - Leter From Metro Vancouver – April 17, 2015, CER Filing ID A4S7I4. Vancouver IR No. 2.3.1. 826 Environment Fraser Valley Regional Trans mountain will engage Fraser Valley Regional District during the development of the Dust FVRD IR No. 2.18 Prior to Constructon Superseded by NEB 52, 79 Commitment addressed by CER Conditon 52, 79, 85, Consultaton requirements. Feedback on draf District Management Plan. Conditon plans was requested on November 29, 2016. Feedback was received on Conditon 79 on March 3, 2017. 827 Environment Fraser Valley Regional Trans Mountain will begin engagement with the Fraser Valley Regional District regarding the FVRD IR No. 2.19, Prior to Constructon Superseded by NEB 52 Commitment addressed by CER Conditon 52, CER Filing ID A84415, Air Emissions Management Plan District development of an Air Emissions Management Plan for the Westridge Marine Terminal. Metro Vancouver IR Conditon for Westridge Marine Terminal, Appendix B, Page: B-1. No. 1.1.6.03i, City Burnaby IR No. 2.085, City Burnaby IR No. 2.086, City Burnaby IR No. 1.04.1.4h, City Burnaby IR No. 1.28.0.1c. 828 Environment Fraser Valley Regional Trans Mountain will consult with Fraser Valley Regional District (FVRD) on the Fugitve Emissions FVRD IR No. 2.20 Prior to Constructon Complete Commitment addressed by CER Conditon 54, CER Filing ID A84796, Conditon 54 Fugitve Emissions District Management Plan for those portons pertaining to Sumas Tank Terminal within FVRD. Management Plan for Edmonton Terminal, Appendix B, Page: B-2. 830 Environment North Shore NOPE Trans Mountain has commited to undertaking updated air quality assessments to inform NSNOPE IR No. Prior to Constructon Complete Air modelling was updated again in 2016 and submited with the AEMPs for Conditons 52, Air engineering design. 2.03c Emissions Management Plan for WMT (CER Filing ID A84415), Appendix F, Conditon 79, Air Emissions Management Plan for the Edmonton, Sumas and Burnaby Terminals (CER Filing ID A84102 and CER Filing ID C08441), Appendix G. 831 Environment North Shore NOPE Trans Mountain is commited to demonstratng ongoing ability to meet the applicable ambient air NSNOPE IR No. Prior to Constructon Superseded by NEB 52 Commitment addressed by CER Conditon 52, CER Filing ID A84415, Air Emissions Management Plan quality objectves at the Westridge Marine Terminal for the fnal engineering design of the facilites. 2.03c Conditon for Westridge Marine Terminal, Secton 3.7. Page: 12. 832 Environment North Shore NOPE Trans Mountain intends to contnue air quality modelling in 2015 to determine tank design, updated NSNOPE IR No. Prior to Constructon Complete Air modelling was updated again in 2016 and submited with the AEMPs for Conditons 52, Air vapour control specifcatons, and any other related design change, using an iteratve process. 2.03c Emissions Management Plan for WMT (CER Filing ID A84415), Appendix F, Conditon 79, Air Emissions Management Plan for the Edmonton, Sumas and Burnaby Terminals (CER Filing ID A84102 and CER Filing ID C08441), Appendix G.

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833 Environment Natural Resources Canada Trans Mountain will update the human health risk assessment (HHRA) for the Burrard Inlet area if GoC NRCan F-IR No. Prior to Operatons Complete Human Health Risk Assessment of Westridge Marine Terminal for the Trans Mountain Expansion revisions to air dispersion modelling based on fnal or near fnal engineering design result is 2.01 Project – 2017 Update, CER Filing ID A86300. increases in the concentratons of air pollutants over populated areas for the Base, Applicaton and Cumulatve cases. 841 Environment NEB Trans Mountain commits to extending passive monitoring of ambient SO2 and NO2 concentratons NEB Cond IR No. During Operatons Complete CER Conditon 52, CER Filing ID A84415, Air Emissions Management Plan for Westridge Marine at the Westridge Marine Terminal during operatons for fve consecutve years. 18.1 Terminal, Secton 3.1, Page: 6. 842 Environment NEB Trans Mountain commits to fling annual reports that summarize the ambient air quality monitoring NEB Cond IR No. During Operatons Superseded by NEB 52 Commitment addressed in CER Conditon 52, CER Filing ID A84415, Air Emissions Management Plan program during operatons at the Westridge Marine Terminal with the NEB. These annual reports 18.3 Conditon for Westridge Marine Terminal, Sectons 3.7, 6.0, 7.0, Page: 12, 29, 30. will include an assessment of the measurement results with respect to compliance with the applicable ambient air quality objectves as well as any additonal mitgaton measures that might result from the monitoring results. 843 Environment NEB Trans Mountain commits to considering and incorporatng feedback on the Conditon 54 Fugitve NEB Cond IR No. Prior to Constructon Superseded by NEB 54 Commitment addressed by CER Conditon 54, CER Filing ID A84796, Conditon 54 Fugitve Emissions Emissions Management Plan for Edmonton, Sumas and Burnaby Terminals, as appropriate. Where 22.4; NEB Cond IR Conditon Management Plan for Edmonton Terminal, Appendix A, Page: A-1 to A-5 Conditon 54, Fugitve feedback or concerns will not be incorporated, Trans Mountain will respond to Aboriginal groups to No. 22.5 Emissions Management Plan for Sumas and Burnaby Terminals, Appendix A, Page: A-1 to A-8. explain why. 844 Environment NEB Trans Mountain commits to updatng the Westridge Marine Terminal Environmental Facility Drawing NEB Cond IR No. Prior to Constructon Complete Conditon 81, CER Filing ID C08265, Conditon 81 Westridge Marine Terminal EPP, Appendix E, Figure to include the locaton of any stck nests found in the area prior to clearing, along with appropriate 25.13 EFD-17 was updated to include WILD-172. no disturbance bufers delineated. 845 Environment NEB Trans Mountain commits to updatng the Westridge Marine Terminal Environmental Protecton Plan NEB Cond IR No. Prior to Constructon Superseded by NEB 81 Conditon 81, CER Filing ID C08265, Conditon 81 Westridge Marine Terminal EPP, Secton 6.0. 7.2, and alignment sheets to include mitgaton measures outlined in the Bald Eagle Nest Management 25.13 Conditon Appendix D, Appendix E, Page: 6-2, 7-4, Table D-1, Figure EFD-17. Plan. 846 Environment Strata NW 313 In additon to constructon management personnel, Trans Mountain will have constructon and Strata NW313 IR No. During Constructon Superseded by NEB 72 Commitment addressed by CER Conditon 72, CER Filing ID C03070, Conditon 72 Environmental Environmental inspectors in place during constructon to ensure Environmental Protecton Plan (EPP) 2.03b Conditon Compliance Management Plan, Plan addresses this commitment. measures are implemented as needed and as commited to. 848 Environment NEB Trans Mountain commits to updatng the Westridge Marine Terminal Environmental Protecton Plan NEB Cond IR No. Prior to Constructon Complete 81 Conditon 81, CER Filing ID C08265, Conditon 81 Westridge Marine Terminal EPP. "Species at Risk" is to include changes to proposed mitgaton measures resultng from concerns raised by Environment 25.14 defned in the Glossary on Page: iv “This assessment will: investgate the efects to the shoreline, and Climate Change Canada in the May 30, 2017 fling of ECCC-CWS Additonal Comments on Trans sediment, water and wildlife in detail; provide comparisons of concentratons of parameters of Mountain Expansion Project Management and Mitgaton Plans. concern with applicable guideline concentratons; and provide recommendatons for remedial actvites, if warranted.” was added to Marine Spill Contngency Plan, Page: B-10 "Migratory Bird Damage or Danger Permit in the list of Federal environmental permits" was added to the list of permits in Table 4-1 (previously Table 4.8-1 on Page: 4-2. 849 Environment NEB During constructon at the WMT, Trans Mountain commits to installing and maintaining permanent NEB Cond IR No. During Constructon Superseded by NEB 81 Commitment addressed by CER Conditon 81, CER Filing ID C08265, Conditon 81 Westridge Marine deterrent devices to prevent birds from nestng in areas that could cause damage or danger to 25.14 Conditon Terminal EPP, Secton 7-4, Page: 7-9. infrastructure, or injury to the birds themselves. Nest deterrents will be installed outside of the primary nestng period (March 26 to August 17) for migratory birds, as per Environment and Climate Change Canada guidelines, and may include visual, physical, or energized deterrents depending on the type of infrastructure. 853 Environment Stk'emlupsemc Te Trans Mountain will implement mitgaton to ensure Project personnel are prohibited from fshing on SSN IR No. 2.10.01 Prior to Constructon Superseded by NEB 47, 72 Commitment addressed by CER Conditon 47, 72, Filing ID A90912, Conditon 47 Access Secwepemc Jacko Lake during constructon actvites and eforts will be made to provide contnuous access to Conditon Management Plan, Secton 3.4.6, 3.4.6.5, Page: 18 to 20 CER Filing ID C04634, Conditon 72 Spread Jacko Lake. 5a Resource Specifc Mitgaton Table, Sectons 3.0 and 7.0, Page: 10, 60. 855 Environment Stk'emlupsemc Te Trans Mountain will ensure that an appropriately qualifed professional will conduct any nest sweeps SSN IR No. 2.32 Prior to Constructon Superseded by NEB 72, 44 Commitment addressed by Conditon 44 and conditon 72. Proof of completon is included in the Secwepemc or species-specifc surveys on Stkemlupsemc Te Secwepemc Naton (SSN) territory. Conditon following documents: Spread 5a RSMT, CER Filing ID C04634, Secton 4.3, Page: 22 to 41. Pipeline EPP, CER Filing ID C01961, Secton 6.0, 7.0, Page: 16, 19 Secton 6.4.1.1 in Appendix G of the Pipeline EPP, Williamson’s Sapsucker and Lewis’s Woodpecker Mitgaton and Habitat Restoraton Plan, Page: G-96 to G-97 Secton 6.4.1.5 in Appendix G of the Pipeline EPP, Great Basin Spadefoot Mitgaton and Habitat Restoraton Plan, Page: G-107 to G-108 Secton 6.4.1.7 in Appendix G of the Pipeline EPP, Western Ratlesnake and Great Basin Gophersnake Mitgaton and Habitat Restoraton Plan, Page: G-113 to G-114 Secton 6.4.2.2 in Appendix G of the Pipeline EPP, American Badger Mitgaton and Habitat Restoraton Plan, Page: G-119 Secton 6.4.2.3 in Appendix G of the Pipeline EPP, Western Screech-Owl Mitgaton and Habitat Restoraton Plan, Page: G-121 to G-122. 856 Environment Stk'emlupsemc Te Trans Mountain will include Stkemlupsemc Te Secwepemc Naton (SSN) in discussions with BC SSN IR No. 2.32 Prior to Constructon Superseded by NEB 44, 72 Commitment addressed by Conditon 44 and conditon 72. Proof of completon is included in the Secwepemc Ministry of Forests, Lands and Natural Resource Operatons if sensitve species are found within SSN Conditon following documents: Spread 5a RSMT, CER Filing ID C04634, Secton 4.3, Page: 22 to 41. Pipeline territory. EPP, CER Filing ID C01961, Secton 14.0 of Appendix B of the Pipeline EPP, Page: B-43, Secton 6.4.1.1 in Appendix G of the Pipeline EPP, Williamson’s Sapsucker and Lewis’s Woodpecker Mitgaton and Habitat Restoraton Plan, Page: G-97, Secton 6.4.1.5 in Appendix G of the Pipeline EPP, Great Basin Spadefoot Mitgaton and Habitat Restoraton Plan, Page: G-108, Secton 6.4.1.7 in Appendix G of the Pipeline EPP, Western Ratlesnake and Great Basin Gophersnake Mitgaton and Habitat Restoraton Plan, Page: G-114, Secton 6.4.2.2 in Appendix G of the Pipeline EPP, American Badger Mitgaton and Habitat Restoraton Plan, Page: G-119, Secton 6.4.2.3 in Appendix G of the Pipeline EPP, Western Screech-Owl Mitgaton and Habitat Restoraton Plan, Page: G-122. 857 Environment Samson Cree Naton Trans Mountain is commited to contnued engagement with Aboriginal groups when the Samson Cree Naton Prior to Constructon Superseded by NEB 72 Commitment addressed by Conditon 72, CER Filing ID A86570, Conditon 72 Reclamaton Reclamaton Management Plan is being fnalized. IR No. 2.1.4a Conditon Management Plan, Secton 3.3 in Appendix J, K Page: J-12 to J-17, K-1 to K-4. 858 Environment Samson Cree Naton The Reclamaton Management Plan will be developed in consultaton with Aboriginal communites, Samson Cree Naton Prior to Constructon Superseded by NEB 72 Commitment addressed by Conditon 72, CER Filing ID A86570, Conditon 72 Reclamaton landowners and applicable Crown land managers. IR No. 2.1.4c Conditon Management Plan, Appendix J, K Page: J-1 to J-18, K-1 to K-4.

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867 Environment New Democratc Party of To ensure that the sub tdal rock reef is successful and meets Fisheries and Oceans Canada's (DFO’s) NDP IR No. 2.1.7.b During Operatons Superseded by NEB 109 Commitment addressed by CER Conditon 109, CER Filing ID A85941, CER Conditon 109 Canada policy of maintaining or improving the productvity and sustainability of commercial, recreatonal or Conditon Authorizaton(s) under paragraph 35(2)(b) of the Fisheries Act –Westridge Marine Terminal, Aboriginal (CRA) fsheries, Trans Mountain will monitor the reef annually for fve years. Conditon 4. Conditons that relate to ofsetng (Conditon 4.4), Page 7. 872 Environment NEB Trans Mountain commits to submitng an updated Worker Accommodaton Strategy incorporatng NEB Cond IR No. Prior to Constructon Complete Conditon 59, Worker Accommodaton Strategy, CER Filing ID A85812. Updates in document address and clearly showing changes regarding the Clearwater and Cheam camps that are included in the 54.1 this commitment. responses to NEB Conditon IR 54.2 and 54.3. The updated Worker Accommodaton Strategy will be fled prior to constructon. 873 Environment Cheam First Naton and Cheam First Naton and Chawathil First Naton are jointly conductng independent, third-party Cheam and Project Lifecycle In Progress Proof of completon will be the EAS or RSMT document prepared with the detailed locatons. Chawathil First Naton Traditonal Land and Resource Use (TLRU) studies. Upon receipt of the reports, Trans Mountain will Chawathil FN IR No. incorporate the results into project planning and the Environmental Alignment Sheets as 2(b).1.3.b appropriate. 877 Environment Vancouver Fraser Port If it is identfed during the development of the constructon specifcatons for Westridge Marine PMV IR No. 2.05a Prior to Constructon In Progress Proof of completon will the the updated Rev 8 WMT EPP, to be fled with the CER. Authority DBA Port Metro Terminal (WMT) that abrasive blastng or coatng will be required over water, Trans Mountain will Vancouver consult with Vancouver Fraser Port Authority DBA Port Metro Vancouver Environmental Programs Department staf to develop appropriate controls. Any controls will be included in the WMT Environmental Protecton Plan (EPP). 879 Environment Vancouver Fraser Port At all tmes during constructon, Trans Mountain will have a constructon management and PMV IR No. 2.05a During Constructon In Progress Proof of completon would be the as-built reportng, or EI reports. Authority DBA Port Metro inspecton team located at Westridge Marine Terminal (WMT), responsible for monitoring and Vancouver enforcing compliance with the Environmental Protecton Plan (EPP). It is antcipated that during high actvity periods, a dedicated environmental inspector will be assigned to the constructon management and inspecton team. 880 Environment Vancouver Fraser Port If an impact or hydraulic hammer is used for in-water pile installaton, Trans Mountain will monitor PMV IR No. 2.07a During Constructon Superseded by NEB 81 Commitment addressed by CER Conditon 81, CER Filing ID C08265, Conditon 81 Westridge Marine Authority DBA Port Metro both underwater pressure levels (measured in kPa) and underwater sound levels (measured in dB) Conditon Terminal EPP, Secton 8.0, Page: 8-4. Vancouver during pile driving. 881 Environment Vancouver Fraser Port Trans Mountain will consult with Vancouver Fraser Port Authority DBA Port Metro Vancouver (PMV) PMV IR No. 2.07c Prior to Constructon No Longer Commitment addressed by CER Conditon 35, CER Filing ID A81712, Conditon 35 Marine Sediment Authority DBA Port Metro if disposal of sediment on PMV lands or water is proposed. Applicable Management Plan, Page 1 and 2. Dredging no longer required. Vancouver 882 Environment Vancouver Fraser Port Trans Mountain will consult Vancouver Fraser Port Authority DBA Port Metro Vancouver and PMV IR No. 2.08 Prior to Constructon No Longer Commitment addressed by CER Conditon 35, CER Filing ID A81712, Conditon 35 Marine Sediment Authority DBA Port Metro Environment Canada (EC), in relaton to disposal optons, when the volume and chemical and Applicable Management Plan, Page 1 and 2. Dredging no longer required. Vancouver physical propertes of contaminated sediment are known. 883 Environment NEB Trans Mountain commits to updatng the Board if any further consultaton feedback resultng in NEB Cond IR No. Prior to Constructon Superseded by NEB 59 Commitment addressed by CER Conditon 59, CER Conditon 59 Worker Accommodaton Strategy, outstanding issues and concerns is received regarding the fnal Clearwater camp site (CLE011). 54.2 Conditon CER Filing ID A85812, Appendix A, Page A-6 to A-18. 884 Environment Vancouver Fraser Port Trans Mountain will endeavour to meet with Vancouver Fraser Port Authority DBA Port Metro PMV IR No. 2.14 Prior to Constructon Complete Meetng with VFPA was held on January 22, 2016 and November 22, 2016. Authority DBA Port Metro Vancouver (PMV) in spring 2015 to discuss the proposed pre-constructon survey and other aspects Vancouver of the Preliminary Marine Fish Habitat Ofsetng Plan. Trans Mountain will ensure that PMV is aforded the opportunity to be included in any upcoming discussions with Fisheries and Oceans Canada. If Trans Mountain proceeds with constructon of the proposed sub tdal reef, PMV will be copied on the compliance and efectveness monitoring reports, and will be included in the planning for any required correctve actons that might arise out of the monitoring. 885 Environment Vancouver Fraser Port Trans Mountain will implement marine fsh habitat ofsetng measures to ofset any serious harm to PMV IR No. 2.15a Prior to Constructon Superseded by NEB 109 Commitment addressed by CER Conditon 109, CER Filing ID A85941, CER Conditon 109 Authority DBA Port Metro fsh that are part of, or support, commercial, recreatonal or Aboriginal (CRA) fsheries. Conditon Authorizaton(s) under paragraph 35(2)(b) of the Fisheries Act –Westridge Marine Terminal, Vancouver Conditon 4. Conditons that relate to ofsetng (Conditon 4.1), Page 7. 889 Environment Vancouver Fraser Port Trans Mountain commits to working with Vancouver Fraser Port Authority DBA Port Metro PMV IR No. 2.24 Prior to Constructon Superseded by NEB 52 Commitment addressed by CER Conditon 52, CER Filing ID A84415, Air Emissions Management Plan Authority DBA Port Metro Vancouver (PMV) to develop an Air Management Plan that is consistent with the requested level of Conditon for Westridge Marine Terminal, Appendix B, Page: B-1 Vancouver Fraser Port Authority Applicaton, Vancouver detail from PMV as part of PMV’s permit applicaton process. Consultaton and Engagement Summary Report, August 2019. 890 Environment Vancouver Fraser Port Trans Mountain commits to providing emissions and dispersion modelling results for a Future PMV IR No. 2.25 Prior to Constructon Complete This commitment is addressed by the Westridge Marine Terminal Upgrade and Expansion Project Authority DBA Port Metro without Project Scenario, consistent with the requested pollutants and averaging periods from Applicaton to Vancouver Fraser Port Authority dated May 2017, which included the Air Emissions Vancouver Vancouver Fraser Port Authority DBA Port Metro Vancouver (PMV), as part of PMV’s permit Management Plan for WMT. applicaton process. 891 Environment Vancouver Fraser Port Trans Mountain commits to providing annual emissions for the requested contaminants in the Base PMV IR No. 2.25 Prior to Constructon Superseded by NEB 52, 79 Commitment addressed by CER Conditon 52 CER Filing ID A84415, Conditon 52 Air Emissions Authority DBA Port Metro Case, Applicaton Case, Project Efects and Cumulatve Case, and consistent with the requested level Conditon Management Plan for WMT, Secton 3.0, Page: 4 to 5. Conditon 79, CER Filing ID C08441, Conditon Vancouver of detail, as part of Vancouver Fraser Port Authority DBA Port Metro Vancouver's permit applicaton 79 Air Emissions Management Plan for Sumas and Burnaby Terminals, Secton 3.1, Page: 10 process. Conditon 79, CER Filing ID A84102, Air Emissions Management Plan for Edmonton Terminal, Secton 3.1, Page: 4. 892 Environment Vancouver Fraser Port Trans Mountain commits to providing maximum predicted concentratons for all applicable PMV IR No. 2.25 Prior to Constructon Superseded by NEB 79 Conditon 79, CER Filing ID C08441, Conditon 79 Air Emissions Management Plan for Sumas and Authority DBA Port Metro averaging periods for the Background, Burnaby Terminal, Westridge Marine Terminal, Marine and Conditon Burnaby Terminals, Secton 3.1, Appendix E, Page: 10, E-1 Conditon 79, CER Filing ID A84102, Air Vancouver Total, consistent with the requested level of detail and methodology from Vancouver Fraser Port Emissions Management Plan for Edmonton Terminal, Secton 3.0, Appendix D, 4 to 5, Page: D-1. Authority DBA Port Metro Vancouver (PMV), as part of the PMV permit applicaton process. 894 Environment Shxw’owhámel First Naton In the event of a leak or rupture from a pipeline or facility within Shxw’owhámel First Naton(SFN) SFN IR No. 2.5.1e2 Prior to Operatons Superseded by NEB 72 Commitment addressed by CER Conditon 72, CER Filing ID C01961, Conditon 72 Pipeline EPP, Traditonal Territory, Trans Mountain Pipeline ULC (Trans Mountain) will follow the remedial steps Conditon Secton 11.0 ofAppendix B, Page: B-27 to B-31. outlined in the Natonal Energy Board (NEB) Remediaton Process Guide (2011) to ensure that the groundwater contaminaton is remediated to applicable remediaton standards.

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895 Environment Sto:lo Collectve All sensitve resources identfed on the Environmental Alignments Sheets and Environmental tables Sto Lo Collectve IR Prior to Constructon Superseded by NEB 72 Commitment addressed by CER Conditon 72, CER Filing ID C01961, Conditon 72 Pipeline EPP, within the immediate vicinity of the right-of-way will be clearly marked before the start of clearing. No. 2.1.2 Conditon Secton 5.0, 6.0, Page: 12, 16. Trans Mountain will provide Aboriginal communites with the antcipated constructon schedule and proposed pipeline corridor maps, a minimum of two weeks prior to the start of constructon in the vicinity of their respectve communites. 902 Environment Metro Vancouver Trans Mountain gathered new informaton in 2014 and will conduct additonal measurements of Metro Vancouver IR Prior to Constructon Complete RWDI performed a tanker loading measurement survey in Feb 2015. The results were provided in a volatle organic compounds (VOCs) emissions during the tanker loading at the Westridge Marine No. 2.1.03 memo dated June 5, 2015, Summary of VOC Emissions within the Levelton Sampling Reports, 2014- Terminal for a variety of crude oil products in 2015. 2015 Westridge Marine Terminal. 903 Environment Metro Vancouver The Google Earth fle including all modeled buildings and stacks in Burnaby Terminal and Westridge Metro Vancouver IR Prior to Constructon Complete Email confrmaton of submission of the USB memory stck was created by RWDI and sent on Marine Terminal for Base Case will be provided directly to Metro Vancouver on a USB stck. Trans No. 2.1.08b February 19, 2015. Mountain will also provide these fles to the Natonal Energy Board and any other Intervenor on request. 904 Environment Metro Vancouver Trans Mountain has commited to be under all applicable ambient air quality objectves and they are Metro Vancouver IR Prior to Constructon Complete Reply Evidence Appendix 33C - Air Quality Modelling, Updated Community Mult-scale Air Quality commited to mitgate to the appropriate emission levels and stack design to achieve those No. 2.1.10a (CMAQ) Photochemical Modelling for the TMEP, CER Filing ID A4S7I6. Reply Evidence Appendix 33A predicted concentratons. Trans Mountain has also commited to resolve the variability in the - Leter From Metro Vancouver – April 17, 2015, CER Filing ID A4S7I4. Volatle Organic Compound (VOC) measurements and refne the HYSYS model by Q2, 2015 by: undertaking additonal sampling surveys at Westridge Marine Terminal; selectng the most reliable VOC dataset; re-running the calibrated HYSYS model to re-calculate Project VOC emissions; re- running the CALPUFF dispersion model to demonstrate that predicted concentratons will contnue to be less than the ambient objectves; and, matching the needed level of emission control with the appropriate equipment package. 908 Environment Metro Vancouver Trans Mountain will conduct annual combuston efciency testng of the Westridge Marine Terminal Metro Vancouver IR During Operatons Superseded by NEB 53 Conditon 53, CER Filing ID A84416, Fugitve Emissions Management Plan for WMT, Secton 5.1.4.3, existng and proposed VCU. No. 2.2.1b Conditon Page: 14. 909 Environment Metro Vancouver Trans Mountain will consult with the Lower Fraser Valley Air Quality Coordinatng Commitee Metro Vancouver IR Prior to Constructon Complete Reply Evidence Appendix 33C - Air Quality Modelling, Updated Community Mult-scale Air Quality commencing in Q1 2015 in the development of the Community Mult-Scale Air Quality (CMAQ) No. 2.3.1, GoC (CMAQ) Photochemical Modelling for the TMEP, CER Filing ID A4S7I6. Reply Evidence Appendix 33A modelling plan for additonal CMAQ modelling. NRCan IR No. 2.01, - Leter From Metro Vancouver – April 17, 2015, CER Filing ID A4S7I4. FVRD IR No. 2.10 910 Environment Metro Vancouver Reclamaton at fsh-bearing watercourses, including riparian areas, will be conducted to stabilize the Metro Vancouver IR During Constructon Superseded by NEB 71, 72 Commitment addressed by CER Conditon 71, 72, CER Filing ID C01961, Conditon 72 Pipeline EPP, bed and banks, riparian areas and approach slopes. No. 2.7.2a Conditon Secton 13.2, Secton 6.1 in Appendix H of the Pipeline EPP (Riparian Habitat Reclamaton secton) Page: 68, H-61 to H-80. 913 Environment Metro Vancouver Trans Mountain, in cooperaton with local communites, Aboriginal groups, regulatory authorites, Metro Vancouver IR Project Lifecycle In Progress Proof of completon will be the PCEM reports required by DFO for the Fisheries Act Authorizaton. and other stakeholders is commited to exploring ways through the Environmental stewardship No. 2.7.6b program to help further recovery of fsh habitat that may be afected by TMEP actvites in or near the Brunete Fraser Greenway. 915 Environment Metro Vancouver Trans Mountain, is willing to work in cooperaton with Metro Vancouver as well as other local Metro Vancouver IR Prior to Constructon Superseded by NEB 7 Commitment addressed by CER Conditon 7, CER Filing ID A82140, Conditon 7 South Fraser government, Aboriginal groups, regulatory authorites, and other stakeholders to explore ways to No. 2.7.6c Conditon Perimeter Road Route Realignment Environmental and Socio-Economic Assessment, Appendix C, help further the recovery of aquatc ecosystems and species at risk that may be afected by TMEP Page: C-1 to C-7. actvites in Surrey Bend Park, near Brunete River Greenway. 916 Environment Metro Vancouver Trans Mountain will provide the requested CALMET input fles, which were used in the Terrestrial Metro Vancouver IR Prior to Constructon Complete Email confrmaton of submission of the USB memory stck was created by RWDI and sent on assessment, directly to Metro Vancouver (and the Natonal Energy Board or any other Intervenor No. 2.1.04d February 19, 2015. upon request) via USB memory stck. 917 Environment Metro Vancouver Trans Mountain will provide the requested 12 monthly CALMET input fles, which were used in the Metro Vancouver IR Prior to Constructon Complete Email confrmaton of submission of the USB memory stck was created by RWDI and sent on Marine assessment, directly to Metro Vancouver (and the Natonal Energy Board or any other No. 2.1.04e February 19, 2015. Intervenor upon request) via USB memory stck. 918 Environment Metro Vancouver Trans Mountain will provide the requested 5 seasonal geo-data fles, which were used in the Metro Vancouver IR Prior to Constructon Complete Email confrmaton of submission of the USB memory stck was created by RWDI and sent on Terrestrial assessment, directly to Metro Vancouver (and the Natonal Energy Board or any other No. 2.1.04f February 19, 2015. Intervenor upon request) via USB memory stck. 919 Environment Metro Vancouver Trans Mountain will provide the requested .data fles directly to Metro Vancouver via USB memory Metro Vancouver IR Prior to Constructon Complete Email confrmaton of submission of the USB memory stck was created by RWDI and sent on stck. No. 2.1.04g February 19, 2015. 929 Environment Simon Fraser University Trans Mountain is commited to meetng the applicable ambient air quality objectves at the SFU IR No. 2.5.10.1 Prior to Constructon Superseded by NEB 52, 53 Commitment addressed by CER Conditon 52, 53, CER Filing ID A84415, Conditon 52 Air Emissions Westridge Marine Terminal and this is the primary criterion for determining tank design and vapour Conditon Management Plan for WMT, Secton 1.2, Page: 1 Conditon 53, CER Filing ID A84416, Fugitve control confguratons. Emissions Management Plan for WMT, Secton 1.5, Page: 2. 930 Environment Simon Fraser University Resource specifc mitgaton measures, as appended to the Facilites Environmental Protecton Plan SFU IR No. 2.5.18.1 Prior to Constructon Complete Resource-Specifc Mitgaton Tables are found in Appendix D of the Conditon 78 Facilites EPP, CER (EPP), will be provided in the Issued for Constructon version of the Facilites EPP. Filing ID C06991, Page: D-1 to D-9. 936 Environment Tsawout First Naton Trans Mountain will consider additonal issues and concerns, traditonal use sites, or features Tsawout FN IR No. Project Lifecycle In Progress Proof of completon will be the Conditon 96 Reports on engagement with Indigenous groups – identfed through ongoing engagement with Tsawout First Naton for incorporaton into Project 2.55b constructon to be fled with the CER every 6 months untl commencing operatons. planning under the guidance of existng marine transport regulatons and mitgaton recommendatons made to date. 940 Environment NEB Trans Mountain will update the NEB if any further consultaton feedback resultng in outstanding NEB Cond IR No. Prior to Constructon Superseded by NEB 59 Commitment addressed by CER Conditon 59, CER Conditon 59 Worker Accommodaton Strategy, issues and concerns is received regarding the Fraser Valley/Cheam camp site (CHE053). 54.3 Conditon CER Filing ID A85812, Appendix A, Page A-6 to A-18.

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942 Environment NEB Trans Mountain commits to incorporatng any future Project footprint updates within caribou range NEB Cond IR No. Prior to Operatons Superseded by NEB 128 Commitment will be addressed by CER Conditon 128, Not yet fled (at least 3 months prior to into the quanttatve metrics to be completed for the Preliminary Ofset Measures Plan (OMP) (NEB 60.1 Conditon applying for leave to open), Conditon 128a, Ofset Measures Plan for residual efects on caribou Conditon 128a), which requires a quantfcaton of the area of caribou habitat directly and indirectly habitat. disturbed. (Spread 3) 943 Environment Peters Band Trans Mountain will monitor areas of known and potental contaminaton during constructon. In the Peters Band IR No. During Constructon Superseded by NEB 46, 72, 78, 81 Commitment addressed by CER Conditon 46, 72, 78, 81. CER Filing ID C01961, Conditon 46 event contaminaton is discovered during constructon, the Contaminaton Discovery Contngency 2(b). 2.4b Conditon Contaminaton Identfcaton and Assessment Plan, Secton 3.2.2.1 of Appendix G in the Pipeline Plan will be implemented (Appendix B of the Pipeline Environmental Protecton Plan [Volume 6B; EPP, Page: G-55 to G-57. CER Filing ID C01961, Conditon 72 Pipeline EPP, Secton 1.0 of Appendix B, Filing ID A3S2S3] and Facilites Environmental Protecton Plan [Volume 6C; Filing ID A3S2S6]). Page: B-3 CER Filing ID C06991, Conditon 78 Facilites EPP, Secton 1.0 of Appendix B, Page: B-3 CER Filing ID C08265, Conditon 81 Westridge Marine Terminal EPP, Secton 1.0 of Appendix B, Page: B-3. 944 Environment Peters Band Trans Mountain will be updatng the preliminary inventories and re-assessing potentally Peters Band IR No. Prior to Constructon Superseded by NEB 46 Commitment addressed by CER Conditon 46, CER Filing ID A90938, Conditon 46 Contaminaton contaminated areas prior to constructon based on the fnal project footprint. 2(b). 2.4 Conditon Identfcaton and Assessment Plan, Plan addresses this commitment. 945 Environment Peters Band Trans Mountain is willing to investgate the use of chemical monitoring of groundwater should Peters Band IR No. Prior to Operatons Superseded by NEB 46, 72 Commitment addressed by Conditon 46, CER Filing ID A90938, Conditon 46 Contaminaton contaminaton be discovered during constructon of the Project. 2(b). 2.5b Conditon Identfcaton and Assessment Plan, Secton 4.0, Page: 8 to 9. Conditon 72, CER Filing ID C01961, Conditon 72 Pipeline EPP, Secton 1.0 in Appendix B, Page: B-3 to B-5. 947 Environment Peters Band Herbicide applicaton will be monitored shortly afer treatment for efectveness of the treatment Peters Band IR No. Project Lifecycle Superseded by NEB 45 Commitment addressed by CER Conditon 45, CER Filing ID A86546, Conditon 45 Weed and and impact on the environment. 2(b). 2.5c Conditon Vegetaton Management Plan, Secton 6.0, Page: 28 to 29. 949 Environment Peters Band In the event of groundwater contaminaton caused by the Trans Mountain Pipeline system, Trans Peters Band IR No. Project Lifecycle Superseded by NEB 72 Commitment addressed by CER Conditon 72, CER Filing ID C01961, Conditon 72 Pipeline EPP, Mountain will work with the leadership of the Peters Band to identfy surplus capacity from other 2(b). 3.12 Conditon Secton 7.0, Secton 4.2 in Appendix G, Page: 22, G-69. drinking water sources in the area, while suitable interim water supply replacement alternatves are established and implemented. 951 Environment Georgia Strait Alliance Trans Mountain will consult with potentally afected communites, Aboriginal groups, local and Georgia Strait Prior to Constructon Superseded by NEB 13 Commitment addressed by CER Conditon 13, CER Filing ID A84618, CER Conditon 13 Socio- regional authorites, and service providers regarding the Socio-Economic Efects Monitoring Plan. Alliance IR No. Conditon Economic Efects Monitoring Plan, Secton 2.0, Page 11. 2(b).12c 954 Environment NEB In the event that a contngency crossing of the Raf River is required, Trans Mountain commits to NEB Cond IR No. Project Lifecycle In Progress To be determined. If a contngency method is needed, the proof of completon will be the Pre- completng a quanttatve pre-constructon habitat assessment of the Project Footprint for the 60.1 constructon habitat assessment. If the trenchless crossing is successful, this will be no longer contngency route. applicable. 999 Environment Terence Inskip The porton of the existng right-of-way in the Lac du Bois Protected Area that falls within the Inskip T IR No. 1c During Constructon Superseded by NEB 72 Commitment addressed by CER Conditon 72, CER Filing ID A86570, Conditon 72 Lac du Bois constructon footprint of the proposed Project will be recontoured to ensure that a stable profle is Conditon Grasslands Protected Area Reclamaton Plan, Secton 5.2, Appendix A, Page: 36, 39, A-12. achieved and that the disturbed area within the constructon footprint is blended/naturalized to the extent practcal. Trans Mountain will be consultng with BC Parks regarding additonal recontouring as a potental benefts/ ofset for the Lac du Bois protected area. 1001 Environment NEB Trans Mountain has followed up with Ministry of Forests, Lands, Natural Resource Operatons & NEB Cond IR No. Prior to Constructon Complete Conditon 37, Preliminary Caribou Habitat Restoraton Plan, CER Filing ID A85071, Appendix B, Page: Rural Development for further informaton regarding mineral licks, and commits to updatng 60.1 B-5. Environment and Climate Change Canada-Canadian Wildlife Service if additonal informaton is provided. (Spread 3) 1018 Environment NEB In order to reduce the potental efects of disturbing contaminated soils during project actvites, NEB Cond IR No. Project Lifecycle In Progress Proof of completon will be the transmital records for the Phase 1 Reports. Trans Mountain commits to providing contractors with a site plan showing areas of potental 42.5 concern for high and moderate risk sites for the applicable temporary work spaces in Spread 6. 1082 Environment NEB In order to reduce the potental efects of disturbing contaminated soils during project actvites, NEB Cond IR No. Project Lifecycle In Progress Proof of completon will be the transmital records for the Phase 1 Reports. Trans Mountain commits to providing contractors with a site plan showing areas of potental 42.5 concern for high and moderate risk sites for the applicable temporary work spaces in Spread 7. 1086 Environment NEB In order to reduce the potental efects of disturbing contaminated soils during project actvites, NEB Cond IR No. Project Lifecycle In Progress Proof of completon will be the transmital records for the Phase 1 Reports. Trans Mountain commits to providing contractors with a site plan showing areas of potental 42.5 concern for high and moderate risk sites for the applicable temporary work spaces in Spread 3. 1291 Environment City of Burnaby Trans Mountain commits to feld-verifying the status of the heron colony near Westridge Marine City Burnaby F-IR Prior to Constructon Complete CH2M Willdlife Technical Lead provided email confrmaton on January 16, 2018 that a site visit to Terminal prior to constructon, in either 2014 or 2015. No. 1.27.08b verify the heron colony and heron actvity was completed as part of Terrestrial Ecosystem Mapping (TEM) on June 16, 2014 by EDI/ CH2M. The colony was not observed during the survey. 1311 Environment Fraser Valley Watersheds Prior to constructon, Trans Mountain will engage the Fraser Valley Watersheds Coaliton and other FVWC IR No. 1.4.2 Prior to Constructon Complete Fraser Valley Watershed Coaliton declined to partcipate in further engagement. Coaliton interested stakeholder groups on constructon-related mitgaton measures and restoraton plans for the Stewart Creek site on the pipeline right-of-way. Specifc restoraton measures will be incorporated into the Pipeline Environmental Protecton Plan and associated volumes. 1312 Environment Fraser Valley Watersheds Trans Mountain commits to working cooperatvely to plan restoraton where any disturbance of a FVWC IR No. 1.4.3 Project Lifecycle In Progress Proof of completon will be accepted Reclamaton/Restoraton Strategies. Coaliton Fraser Valley Watershed Coaliton restoraton project is required. 1328 Environment Brian Kingman Mitgaton for raptor nests on the Kingman property will include the following: Avoid the tming Kingman B IR No. During Constructon In Progress Proof of completon will be the nest management plan if constructon occurs during the restricted window for red-tailed hawk (January 26 to August 10) and bald eagle (January 5 to August 31) if 1.3a tming period. If constructon occurs outside this tming window, this commitment is no longer possible. In the event clearing and constructon actvity occur within this tming window, a site visit applicable. will be conducted to determine the status of the nest (i.e., actve or inactve), to confrm the species of raptor, and the locaton of the nest relatve to the proposed pipeline right-of-way. In the event an actve raptor nest is found, a Nest Management Plan addressing various mitgaton (including nest monitoring during the breeding period) is recommended.

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1329 Environment Brian Kingman Trans Mountain will conduct a site visit to determine the status of the nest (i.e., actve or inactve), Kingman B IR No. During Constructon In Progress Proof of completon will be the survey results. to confrm the species of raptor, and the locaton of the nest relatve to the proposed pipeline right- 1.3a of-way. 1394 Environment Natural Resources Canada Trans Mountain will commit to re-visitng the Human Health Risk Assessment (HHRA), if the fnal GoC NRCan IR No. Prior to Constructon Complete Human Health Risk Assessment of Westridge Marine Terminal for the Trans Mountain Expansion engineering design results in material increases to the predicted concentratons due to the Project 2.01 Project – 2017 Update, CER Filing ID A86300. and these changes could reasonably afect human health. 1406 Environment NEB Trans Mountain commits to incorporatng any future Project footprint updates within caribou range NEB Cond IR No. Prior to Operatons Superseded by NEB 128 Commitment will be addressed by CER Conditon 128, Not yet fled (at least 3 months prior to into the quanttatve metrics to be completed for the Preliminary Ofset Measures Plan (OMP) (NEB 60.1 Conditon applying for leave to open), Conditon 128a, Ofset Measures Plan for residual efects on caribou Conditon 128a), which requires a quantfcaton of the area of caribou habitat directly and indirectly habitat disturbed. (Spread 4) 1407 Environment NEB Trans Mountain has followed up with Ministry of Forests, Lands, Natural Resource Operatons & NEB Cond IR No. Prior to Constructon Complete Conditon 37, Preliminary Caribou Habitat Restoraton Plan, CER Filing ID A85071, Appendix B, Page: Rural Development for further informaton regarding mineral licks, and commits to updatng 60.1 B-5. Environment and Climate Change Canada-Canadian Wildlife Service if additonal informaton is provided. (Spread 4) 1433 Environment C.G.L.A.P. - Collaboratve Trans Mountain will retain an independent Professional Agrologist to lead the post-constructon CGLAP IR No. 1.4c During Operatons Scoping Proof of completon is the Conditon 151 Post-constructon environmental monitoring reports. Group of Landowners Environmental monitoring program and assist in determining crop yields and quality. Trans Mountain Afected by Pipelines will select a qualifed professional agrologist with experience in assessment of crops that will be encountered in the Fraser Valley on farm lands afected by pipeline constructon. Potental candidates for the positon will require qualifcatons that include: Registered Professional Agrologist with experience in constructon methods for linear utlity projects, familiarity with the crops and agricultural conditons of the Fraser Valley, and experience in crop monitoring techniques. 1471 Environment Metro Vancouver, NEB, New Three months prior to the start of pile installaton, a draf Marine Mammal Protecton Program will NEB IR No. 1.56, Prior to Constructon Superseded by NEB 81, 132 Commitment addressed by CER Conditon 81, 132, CER Filing ID C08265, Conditon 81 Westridge Democratc Party of Canada, be developed and submited to the Natonal Energy Board (NEB) for review. This draf will include Metro Vancouver IR Conditon Marine Terminal Environmental Protecton Plan, Secton 8.0 Marine Constructon, Page: 30 to 35. Val Veirs further details on constructon mitgaton and the monitoring program, as well as an update on the No. 1.1.5.07.1, NDP Not yet fled (at least 3 months prior to commencing operatons), CER Conditon 132, Marine status of the marine transportaton collaboratve initatves, including a summary of all consultaton IR No. 1.1.8f, Veirs V Mammal Protecton Program. actvites to date, and planned ‘next steps’. Copies will also be made available to appropriate IR No. 1.2 regulatory authorites, Aboriginal communites, and other interested stakeholders for comment. The Marine Mammal Protecton Program will be a living document and, therefore, may go through multple iteratons over the life of the Project as the various programs develop over tme; all updates will be fled with the NEB. 1601 Environment Sto:lo Collectve A copy of the draf Archaeological Impact Assessment (AIA) fnal report will be forwarded in Sto:lo Collectve Prior to Constructon Complete The 2016 Archaeological Impact Assessment Annual Report for the Trans Mountain Expansion confdence to the Sto:lo Collectve for review, comment and proposed edits before submission of the Atachment - Table Project was submited to Sto:lo Naton on March 3, 2017. report to Britsh Columbia Ministry of Forests, Lands and Natural Resource Operatons (BC MFLNRO) 3a Archaeology Branch. Once accepted by BC MFLNRO Archaeology Branch, a copy of the fnal AIA report will be forwarded in confdence to the Sto:lo Collectve. 1612 Environment Sto:lo Collectve As part of the workshop series described in the response to Recommendaton 2, Trans Mountain will Sto:lo Collectve Prior to Constructon Complete Trans Mountain’s Writen Evidence for STSA (Segments 5, 6 and 7) – Phase 1, CER Filing ID C04751, ofer a focused workshop to review the draf Environmental Protecton Plan (EPP) and Recommendaton #3 Appendix G - TTML Engagement Logs (Feb 2018 - Oct 2019), May 23, 2019, Page: 64 to 69. Environmental Alignment Sheets (EAS). Trans Mountain will submit up to date versions of the EPP and EAS to Sto:lo representatves. 1616 Environment Sto:lo Collectve As part of the workshop series described in the response to Recommendaton 2 Trans Mountain will Sto:lo Collectve Prior to Constructon Complete Meetng was held on November 6, 2020 where watercourses were discussed. include the subjects of aquatcs and water crossings. Recommendaton #9, #21 1620 Environment Sto:lo Collectve Where water quality monitoring fails to meet the parameters of established guidelines and is not in Sto:lo Collectve During Constructon Superseded by NEB 72 Commitment addressed by CER Conditon 72, CER Filing ID C01961, Conditon 72 Pipeline EPP, compliance with regulatory requirements, Trans Mountain will report the incident to Sto:lo Recommendaton Conditon Appendix B, Atachment B1 Spill Scene Checklist, Page: B1-1. representatves within the requested tmeframe. #11 1621 Environment Sto:lo Collectve Trans Mountain remains commited to ongoing engagement with Sto:lo representatves to discuss Sto:lo Collectve Prior to Constructon Complete Conditon 72, EAS/RSMT for Spread 5a, CER Filing ID C03921, RSMT Secton 3.0, Page: 10, EAS Page: the inclusion of existng Sto:lo knowledge into the updated EPPs for the Project. Recommendaton All. Conditon 72, EAS/RSMT for Spread 5b, CER Filing ID C05600, Secton 3.0, Page: 7, EAS Page: All. #12 Conditon 72, EAS/RSMT for Spread 7, CER Filing ID C03931, Secton 3.0, Page: 8, EAS Page: All. 1622 Environment Sto:lo Collectve Trans Mountain's procurement team and Chief Environmental Inspector will discuss the Sto:lo Collectve Prior to Operatons Superseded by NEB 98 Commitment addressed by CER Conditon 98, CER Filing ID C00105, Conditon 98 Plan for requirements and existng capacity re: qualifed monitoring personnel and services with the Sto:lo Recommendaton Conditon Indigenous Group Partcipaton in Constructon Monitoring, Entre Plan outlines Trans Mountain's representatves. #13, #14, #26, #40, plan and commitment to retain Indigenous Monitors. #41, #52 1625 Environment Sto:lo Collectve If clearing in Old Growth Management Areas (OGMAs) within the S’ólh Téméxw becomes an Sto:lo Collectve Project Lifecycle In Progress Proof of completon will be the records of delivery for cedar to the interested Indigenous groups. approved constructon requirement, Trans Mountain will discuss Sto:lo’s desire to salvage cedar with Recommendaton the OGMA regulator and the terms for commercial harvest will be negotated (Spread 5B). #29 1627 Environment Sto:lo Collectve Trans Mountain welcomes the opportunity to discuss the development and operaton of businesses Sto:lo Collectve Prior to Constructon In Progress Proof of completon will be the contracts to use greenhouses to propagate natve plants. and or greenhouses that can be used to propagate natve plants. Recommendaton #33 1628 Environment Sto:lo Collectve Trans Mountain will discuss the opportunity for Sto:lo partcipaton in pre-constructon weed Sto:lo Collectve Prior to Constructon No Longer Weed surveys were not conducted at (WMT, Spread 6, Spread 7) in 2016 or 2017. (Because of the surveys. Recommendaton Applicable data already collected in previous vegetaton surveys, separate weed surveys were not required). #35

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1629 Environment Sto:lo Collectve Trans Mountain will provide advance notfcaton of planned herbicide applicaton to the Sto:lo Sto:lo Collectve Project Lifecycle Superseded by NEB 45 Commitment addressed by CER Conditon 72, CER Filing ID C01961, Conditon 72 Pipeline EPP, representatves. Recommendaton Conditon Secton 7.0, Page: 26 (Measure 81). #37 1630 Environment Sto:lo Collectve Trans Mountain will contnue to engage Stó:lō representatves through all phases of the Project. Sto:lo Collectve During Operatons In Progress Proof of completon will be the Conditon 96 Reports on engagement with Indigenous groups – Vegetaton monitoring is part of the Post Constructon Environmental Monitoring (PCEM) program Recommendaton constructon to be fled with the CER every 6 months untl commencing operatons. and vegetaton re-establishment will be compared to a similar reference plant community located #38, 39 adjacent to, or within, the vicinity of the constructon right-of-way and pre-constructon conditons. Discuss the opportunity for Stó:lō partcipaton and input into the planned monitoring scheduled. 1634 Environment Sto:lo Collectve Trans Mountain will recognize places names (such as on Project maps, signs and fencing) during the Sto:lo Collectve During Constructon In Progress Proof of completon is the Conditon 151 Post-constructon environmental monitoring reports. constructon of the Project. Recommendaton #45 1635 Environment Sto:lo Collectve Trans Mountain will develop and implement an environmental educaton program to ensure that all Sto:lo Collectve Prior to Constructon Superseded by NEB 72 Commitment addressed by CER Conditon 72, CER Filing ID C03070, Environmental Compliance personnel working on the constructon of the Project are informed of the locaton of known Recommendaton Conditon Management Plan, Compliance and Educaton Training are provided on Page: 10 and 11. Traditonal Land Use (TLU) sites. #49, 1636 Environment Sto:lo Collectve Trans Mountain welcomes the opportunity to discuss the establishment of infrastructure and Sto:lo Collectve Prior to Constructon Superseded by NEB 98 Commitment addressed by CER Conditon 98, CER Filing ID C00105, Conditon 98 Plan for capacity for Sto:lo to implement on-going processes of air and water quality monitoring. Recommendaton Conditon Indigenous Group Partcipaton in Constructon Monitoring, Entre Plan outlines Trans Mountain's #53 engagement with Indigenous Groups and the Scope of the Indigenous Monitors. 1637 Environment Sto:lo Collectve Trans Mountain welcomes the opportunity to discuss infrastructure and capacity for Sto:lo heritage Sto:lo Collectve Prior to Constructon Superseded by NEB 98 Commitment addressed by CER Conditon 98, CER Filing ID C00105, Conditon 98 Plan for resource management technical involvement as constructon monitors, to ensure protecton of sites, Recommendaton Conditon Indigenous Group Partcipaton in Constructon Monitoring, Entre Plan outlines Trans Mountain's and to ensure Sto:lo practces are maintained. #54 engagement with Indigenous Groups and the Scope of the Indigenous Monitors. 1648 Environment Sto:lo Collectve During the constructon phase, Trans Mountain will discuss any unantcipated adverse efects on Sto:lo Collectve During Constructon Superseded by NEB 13 Commitment addressed by CER Conditon 13, CER Filing ID A84618, CER Conditon 13 Socio- Sto:lo businesses related to the constructon of the Project during the mutually agreed to on-going Recommendaton Conditon Economic Efects Monitoring Plan, Secton 3.0 (Table 3), Page 13 to 15. engagement between Sto:lo and Trans Mountain. Additonal mitgaton will be developed, as #71 required, if and as such adverse efects are identfed. 1652 Environment Sto:lo Collectve As discussed in the response to NEB IR No. 1.17d1 (Filing ID A3W9H8), Trans Mountain will develop Sto:lo Collectve During Constructon Complete Conditon 59, Worker Accommodaton Strategy, CER Filing ID A85812, Appendix E Worker Code of policies and/or guidance in the following areas, related to limitng adverse interactons between Recommendaton Conduct, Page: E-1 to E-3. Project workers and local communites: the use of local recreatonal, social, and retail facilites and #75, #78 services, including outdoor recreaton areas, in smaller constructon hub communites; the use of local and regional medical and social services; the use of frearms, huntng, or fshing by Project workers; afer-hours worker conduct; damage to property; conduct in parks and protected areas; respectul behaviour/harassment. 1653 Environment Sto:lo Collectve Trans Mountain will establish and enforce a policy whereby workers who disregard mitgaton Sto:lo Collectve During Constructon Complete Conditon 59, Worker Accommodaton Strategy, CER Filing ID A85812, Appendix E Worker Code of measures will be subjected to appropriate disciplinary measures including, if appropriate, removal Recommendaton Conduct, Page: E-1 to E-3. from the work site and/or dismissal. #75, #78 1658 Environment Sto:lo Collectve Trans Mountain will include the worker Code of Conduct, which will contain a number of areas Sto:lo Collectve Prior to Constructon Superseded by NEB 59 Commitment addressed by CER Conditon 59, CER Conditon 59 Worker Accommodate Strategy, CER related to the protecton of public health issues in the Worker Accommodate strategy, to be fled Recommendaton Conditon Filing ID A85812, Appendix E Worker Code of Conduct, Page E-1 to E-3. with the NEB for approval, at least 6 months prior to constructon. #86 1663 Environment Landowner - Javier and Trans Mountain is commited to adding the water well located on the Mr. and Mrs. Sarango's NEB Route Hearing Prior to Constructon Complete Waterline prepared a CER Conditon 93 Update dated October 2, 2019. Appendix D (Table D-1), Annemarie Sarango property to the Water Well Inventory. Transcript Seg 1 & 2 contains water well records for water wells belonging to Mr. Javier Sarango and Mrs. Annemarie Vol 8 para 8807NEB Sarango. Route Hearing Decision Seg 1 & 2 Javier&AnnemarieSara Sec 3 1681 Environment Landowner - Dianne Murray Trans Mountain is commited to confrming the presence and locaton of Dianne Murray's water NEB Route Hearing Prior to Constructon Complete Waterline prepared a CER Conditon 93 Update dated October 2, 2019. Appendix D (Table D-1), well, and ensuring that it is included in the Water Well Inventory. Decision Seg 1 & 2 contains water well records for water wells belonging to Ms. Dianne Murray. Dianne Murray Sec 3 1683 Environment Landowner - Stuart Palk and Trans Mountain is commited to adding Mr. Palk and Ms. Bailer Palk's water well to the Water Well NEB Route Hearing Prior to Constructon Complete Waterline prepared a CER Conditon 93 Update dated October 2, 2019. Appendix D (Table D-1), Wendy Bailer Palk Inventory. Transcript Seg 1 & 2 contains water well records for water wells belonging to Mr. Stuart Palk and Ms. Wendy Bailer Palk. Vol 3 para 2213- 2214,2217, NEB Route Hearing Decision Seg 1 & 2 Stuart Palk & Wendy Bailer Palk Sec 3 1684 Environment NEB Trans Mountain commits to completng supplemental surveys for weeds at selected locatons. Route Variance Edm Prior to Constructon Complete Confrmaton of high weed density areas was completed during the Staking/Flagging Program LRT Applicaton pg5 between October 2019 and January 2020, as well as April to May 2020. This informaton has been incorporated into the Living RSMT. 1685 Environment NEB Trans Mountain commits to updatng the Project weed database with the feld results of the Route Variance Edm Prior to Constructon Complete Confrmaton of high weed density areas was completed during the Staking/Flagging Program supplemental weed surveys conducted in associaton with the Edmonton LRT Route Realignment. LRT Applicaton pg5 between October 2019 and January 2020, as well as April to May 2020. This informaton has been incorporated into the Living RSMT.

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1686 Environment NEB Trans Mountain commits to conductng feld surveys for an Archaeological Impact Assessment, in the Route Variance Prior to Constructon Complete Excerpts from the 2015-0258 Archaeological Impact Assessment - 2017 Annual Summary Report Q3 area associated with the Westsyde Road Route Realignment, in 2017. Westsyde Road Interim Report. Applicaton pg4 1687 Environment NEB Trans Mountain commits to conductng supplemental rare plant survey work to identfy the potental Route Variance Prior to Constructon Complete Conditon 40, Rare Plant and Rare Ecological Communites Management Plan, CER Filing ID A90904, for Roell’s brotherella moss, in the area associated with the Kawkawa Lake IR route realignment, in Kawkawa Lake IR Appendix E, Page: E-15. 2017. Applicaton pg3 1688 Environment NEB Trans Mountain commits to conductng feld surveys for an Archaeological Impact Assessment, in the Route Variance Prior to Constructon In Progress Proof of completon will be excerpts from the Archaeological Impact Assessment. area associated with the Kawkawa Lake IR Route Realignment, in 2017. Kawkawa Lake, IR Applicaton pg3 1689 Environment NEB Trans Mountain commits to conductng feld surveys for an Archaeological Impact Assessment, in the Route Variance Prior to Constructon Complete Summary of the 2020 Archaeological Impact Assessment of Sumas Terminal Laydown Yard and area associated with the Sumas Tank Farm Route Realignment, in 2017. Sumas Tank Farm Fence Line Expansion—Trans Mountain Expansion Project was prepared on July 15, 2020. Applicaton pg4 1690 Environment NEB Trans Mountain commits to conductng supplemental rare plant survey work to identfy the potental Route Variance Prior to Constructon Complete Conditon 40, Rare Ecological Community and Rare Plant Populaton Management Plan, CER Filing ID for Roell’s brotherella moss, in the area associated with the Sumas Tank Farm Route Realignment, in Sumas Tank Farm A90904, Secton 4.0, Appendix D, Page: 17, D-4. 2017. Applicaton pg4 1691 Environment NEB Trans Mountain commits to completng supplemental weed surveys in the area associated with the Route Variance Prior to Constructon Complete PDF prepared by McTavish with results of weeds surveys. Sumas Tank Farm Route Realignment, in 2017. Sumas Tank Farm Applicaton pg4 1720 Environment NEB Trans Mountain commits to conductng feld surveys for an Archaeological Impact Assessment, in the Route Variance Prior to Constructon Complete Excerpts from the 2015-0258 Archaeological Impact Assessment - 2017 Annual Summary Report Q3 area associated with the Chilliwack BC Hydro Route Realignment, in 2017. Chilliwack BC Hydro Interim Report. Applicaton pg11 1722 Environment NEB, Waterwealth Project Trans Mountain commits to updatng Secton 7.0 of the Pipeline Environmental Protecton Plan, with Route Variance Prior to Constructon Complete Conditon 72 Pipeline EPP, CER Filing ID C01961, Secton 7.0, Page: 32 the following measure “Utlize biodegradable hydraulic fuid in equipment working between Chilliwack BC Hydro Silverthorne Road (adjacent to KP 1091.8) and Watson Road (KP 1094.12)” will be updated to: NEB IR 1.4Route “Utlize biodegradable hydraulic fuid on heavy equipment during pipeline installaton when working Variance Chilliwack in the Vedder Fan Aquifer (KP 1091.6 to KP 1105.6)”. B Waterwealth IR 1.2 1723 Environment NEB Trans Mountain commits to submitng the updated Environmental Alignment Sheets that include Route Variance , Prior to Constructon Complete Conditon 72, Spread 6 EAS, CER Filing ID A90957, Page: BC-402 to BC-413 indicates an unconfned the mitgaton measures related to protecton of the Vedder Fan Aquifer, to the NEB under a Chilliwack BC Hydro , aquifer (HY-140), which aligns with the KP range of the Vedder Fan aquifer (KP 1091.6 to KP 1105.6). separate cover. NEB IR 1.4 1731 Environment City of Chilliwack Trans Mountain commits to issuing the draf version of the Sardis-Vedder Aquifer Conceptual Model Route Variance , Prior to Constructon Complete The Sardis-Vedder Aquifer Conceptual Model is a Technical Memorandum prepared by Waterline report, as the fnal version. Chilliwack BC Hydro , Resources Inc., and was fled to the CER on June 6, 2017 as part of Correspondence between Trans City of Chilliwack IR Mountain and Chilliwack January to May 2017 (Filing ID A84231-3). 1.2.1b 1735 Environment NEB Trans Mountain commits to fulflling the three recommendatons in the S'ólh Téméxw Stewardship Route Variance , Prior to Constructon Complete Excerpts from the 2015-0258 Archaeological Impact Assessment - 2017 Annual Summary Report Q3 Alliance (STSA) Cultural Heritage Overview Assessment (CHOA) report for the Chilliwack BC Hydro Chilliwack BC Hydro , Interim Report. route realignment, which included: fnalizing the surface survey for the Study Area to (a) examine for Decision Sec 5.5.4 surface materials and areas of subsurface potental, and (b) identfy areas requiring deep testng; conductng shovel testng and augering where necessary. 1756 Environment NEB Trans Mountain commits to adding the following measures to the Facilites Environmental Protecton NonRoute Variance , Prior to Constructon Complete Statement has been added to the Conditon 78 Facilites EPP, CER Filing ID C06991, Appendix D, Plan to address invasive plants at the Burnaby Terminal: cut/mow standing vegetaton on the site; BurnabyTerminal , Page: D-9 under the heading "Vegetaton Rare Plants/Weeds/Timber". dispose of cut/mowed vegetaton that contains seed, and blackberry root fragments disturbed NEB IR 1.8 during vegetaton removal or soil disturbance, at a landfll that accepts invasive plants, or bury the material at a depth that will prevent weeds from growing and spreading; and avoid moving soils of site. Surface soils (upper 15 cm) from infested areas may be buried onsite at a depth that will prevent weeds from growing and spreading. If soils must be moved of site, ensure they are disposed of at a facility that accepts weed infested soils. 1761 Environment Landowners - Burnaby Trans Mountain commits to plantng trees at a higher density compared with Trans Mountain's NEB Route Hearing , Prior to Operatons In Progress Proof of completon is the City of Burnaby Tree Plantng Plan. Currently being reviewed by the City Residents (Holly Chan, Steve standard reclamaton plans; using larger nursery stock during replantng eforts; undertaking a Decision Seg 7 of Burnaby. Following constructon a review of the commitment will be undertaken with the Cook, Karim and Anar windthrow assessment in relaton to the treed bufer between the Residents and Shell property. Burnaby Residents, landowner wherein confrmaton of completon/damage setlement sign-of will be sought. Dossa, Lily and Frank Fan, Sec 2.3 Claudia Leung and Michael Radano) 1764 Environment City of Burnaby Trans Mountain commits to completng its Tree Management Plan for Burnaby prior to constructon. NEB Route Hearing Prior to Constructon Complete Tree Management Plan was submited to the City of Burnaby in September 2020 Decision, Seg 7 City of Burnaby Sec 9 1767 Environment NEB Trans Mountain commits to collaboratng with Stó:lō Research and Resource Management Centre Route Variance , Prior to Constructon Complete Trans Mountain’s Writen Evidence for STSA (Segments 5, 6 and 7) – Phase 1, CER Filing ID C04751, and the Ts’elxwéyeqw Tribe to develop specifc management measures for the Sxwôxwiyám and the Chilliwack BC Hydro , Appendix G - TTML Engagement Logs (Feb 2018 - Oct 2019), May 23, 2019, Page: 64 to 69. Halq’eméylem Place Name recorded within the Study Area. Decision Sec 5.5.4 1804 Environment NEB Trans Mountain has commited to developing additonal steps for the preservaton of the topsoil on Revised Final Prior to Constructon In Progress Plan prepared to preserve the topsoil on Yarrow Ecovillage's organic farm will be the proof of Yarrow Ecovillage's organic farm in cooperaton with the landowners and land users as well as the Argument s. 7.2.1.2 completon. Following constructon a review of the commitment will be undertaken with the Organic Certfcaton Board. p237 landowner wherein confrmaton of completon/damage setlement sign-of will be sought.

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1817 Environment Simon Fraser University Trans Mountain is commited to meetng the requirements of Trans Mountain's Environment, Health SFU IR No. 2.5.12.3 During Operatons Complete Conditon 54, CER Filing ID A84796, Conditon 54 Fugitve Emissions Management Plan for and Safety Policy that is accomplished through the Odour Complaint Investgaton and Response Edmonton Terminal, Appendix D, Page: 1 to 13. Program and various emission reducton measures. 1915 Environment NEB Trans Mountain commits to monitor disturbed riparian habitat at all defned watercourses crossed NEB Cond IR No. During Operatons Superseded by NEB 71 Commitment addressed by CER Conditon 71, Reclamaton measures are outlined in Conditon 72, by the Project under the Riparian Habitat Management Plan (RHMP) that: have a high or moderate 52.1 Conditon CER Filing ID C01961, Conditon 72 Pipeline EPP, Secton 6.1 in Appendix H, Page: H-61 to H-62. reclamaton target; are within critcal habitat for species under Schedule 1 of the Species at Risk Act; are classifed as High Sensitvity fsh-bearing; or are within watersheds with a riparian habitat disturbance threshold > 18%. 1947 Environment Sto:lo Collectve Trans Mountain will develop a Code of Conduct for employees and Contractors that provides Sto:lo Collectve Prior to Constructon Superseded by NEB 59 Commitment addressed by CER Conditon 59, CER Conditon 59 Worker Accommodate Strategy, CER guidance and policies on appropriate and inappropriate worker behaviour and community Recommendaton Conditon Filing ID A85812, Appendix E Worker Code of Conduct, Page E-1 to E-3. interactons. #86 1960 Environment BC Ministry of Forests Lands Trans Mountain will ensure that the damage caused to sensitve alpine environments at Clemina BC MFLNRO P-IR No. Prior to Constructon Complete Proof of completon is provided in CVA IR #15 Response Round 2, Page: 4. and Natural Resource Creek due to ATV use will be part of the Level I orientaton to all project personnel as an example of 2.1.0 Operatons (MFLNRO) what is unacceptable and subject to disciplinary acton. An important part of the environmental orientaton will be discussing potental impacts to sensitve features in the Project area, communicatng the Project code-of-conduct requirements and detailing the “Discipline” and “Consequence of Worker Non-Compliance” measures described in Secton 7 of the Environmental Protecton Plan (EPP). Trans Mountain will implement the discipline and non-compliance measures if Project workers are responsible for environmental damage. 2013 Environment BC Parks Open cut crossings are typically only utlized when a watercourse is dry or frozen to the botom at BC Parks boundary During Constructon In Progress Proof of completon will be the water quality monitoring reports. the tme of constructon. Under these conditons, sediment release is not expected to occur, adjustment however, in the event the recommended isolated crossing technique is not feasible at Finn Creek, an applicaton (August open cut or partal isolaton technique may be required. Trans Mountain will conduct monitoring 2014) Tab A - Finn under fowing conditons to document downstream turbidity and any exceedances of the relevant Creek Provincial Park guidelines will be reported to the appropriate regulatory authorites. 2056 Environment BC Parks To avoid or reduce efects of a drilling mud release on surface water quality, Trans Mountain will BC Parks boundary During Constructon Superseded by NEB 72 Commitment addressed by CER Conditon 72, CER Filing ID C01961, Conditon 72 Pipeline EPP, contnually monitor for sediment release (i.e., turbidity and total suspended solids (TSS)) throughout adjustment Conditon Secton 8.2 in Appendix G, Page: G-143 to G-147. the crossing constructon period. In the event of a release into the watercourse, Trans Mountain will applicaton (August immediately suspend drilling actvites and implement measures outlined in the Drilling Mud Release 2014) Tab B - North Contngency Plan to reduce efects of drilling mud release into the watercourse. Trans Mountain will Thompson River report any releases to Department of Fisheries and Oceans (DFO) and BC Ministry of Environment Provincial Park (MOE). Trans Mountain will carry out clean up and monitoring untl water quality is returned to existng (background) conditons. 2122 Environment Matsqui First Naton Trans Mountain commits to use a Matsqui member as an environmental monitor in Matsqui Matsqui First Naton During Constructon Superseded by NEB 98 Commitment addressed by CER Conditon 98, CER Filing ID C00105, Conditon 98 , Plan for Traditonal Territory. Leter dated October Conditon Indigenous Group Partcipaton in Constructon Monitoring, Secton 3.1, Page: 5. 2, 2015 to Margaret Mears item b. 2125 Environment Matsqui First Naton Trans Mountain will deliver a stand alone list of actons and commitments to the Matsqui Lands Matsqui First Naton Prior to Constructon Complete A table of commitments that detail the actons and commitments Trans Mountain intends to take to Manager no later than 90 days before constructon. This document will list the actons to avoid, Leter dated October avoid, mitgate or compensate for project efects identfed in the Matsqui Environmental mitgate and compensate for Project efects that will be binding on Trans Mountain as a necessary 2, 2015 to Margaret Assessment was issued via email on June 1, 2017. element of the Matsqui First Naton Environmental Assessment. Mears item c3 2191 Environment BC Nature and Nature To reduce any potental environmental efects associated with the Environmental Field Studies BC Nature Nature Prior to Constructon No Longer Commitment is no longer applicable. The route no longer goes through Surry Bend Provincial Park Canada Program in Surrey Bend Provincial Park, Trans Mountain will implement mitgaton measures. Cda IR No. 1.16j- Applicable as outlined in CER Filing ID A82140, Conditon 7 South Fraser Perimeter Road Route Realignment Atachment 1 Environmental and Socio-Economic Assessment. (Research Proposal - Surrey Bend Regional Park) 2256 Environment City of Burnaby, NEB Trans Mountain will engage a qualifed arborist to develop a Tree Plan specifc to municipal lands NEB IR No. 6.12NEB Prior to Constructon In Progress Tree management plans for Coquitlam and Langley Township have been approved. Plans for the City directly impacted by the pipeline constructon, in Spread 7. Trans Mountain will ensure this plan will Route Hearing of Burnaby and Surrey have been submited and are currently under review. The Tree Management identfy the species and number of trees to be removed from the constructon right-of-way. Trans Transcript Seg 7 Vol Plan for Abbotsford will be fnalized upon completon of alignment and workspace changes. Mountain will ensure it will be provided to the City or Municipality, and will be used to develop 3 details of the Reclamaton Plan in consultaton with the City and landowners. 2260 Environment NEB Trans Mountain will ensure a statstcally valid sample of soils will be taken prior to constructon and NEB IR No. 6.13 Prior to Constructon In Progress Records of soil samples will be the proof of completon. Following constructon a review of the before respreading topsoil at Yarrow EcoVillage. Trans Mountain will ensure this sample will be commitment will be undertaken with the landowner wherein confrmaton of completon/damage tested for metal concentratons to ensure that there has been no metal contaminaton of the soil setlement sign-of will be sought. due to pipeline constructon actvity. 2282 Environment NEB Trans Mountain will install an air monitoring staton at the Sumas Terminal by the end of 2014 . Part 2 – Public Prior to Constructon Complete Conditon 79, CER Filing ID C08441, Conditon 79 Air Emissions Monitoring Plan for Sumas and Consultaton Update Burnaby Terminals, Secton 3.2.1.1, Appendix C, Page: 11 to 12, Figure C1 to C4. No. 1 2476 Environment NEB Trans Mountain will invite aboriginal groups to partcipate in Environmental Protecton Plan (EPP) Reply Evidence 42.4 Prior to Constructon Complete EPP workshops were successfully held in Abbotsford, Chilliwack, Kamloops and Edmonton in workshops where mitgaton measures will be discussed. Human Occupancy September 2015. Supportng documents for the Indigenous groups invited and in partcipatng and Resources Use communites were provided to the CER in CVA IR Round 1 IR #4. p.42-3 Line 23

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2497 Environment Lyackson First Naton, Trans Mountain is commited to hostng a regional Environmental Protecton Plans (EPPs) workshop Reply Evidence 57.5 Prior to Constructon Complete Tsawout First Naton, and Lyackson First Naton were invited to partcipate in EPP Workshops on Tsawout First Naton to discuss mitgaton measures, Tsawout First Naton, and Lyackson First Naton will be invited to Aboriginal August 10, 2015 and November 9, 2016, respectvely. Meetng with Tsawout First Naton were atend. Traditonal Marine cancelled because of low response to the invite. Meetng with Lyackson First Naton was canceled Use p.57.9 line 13 because of non-engagement. Supportng documents for the Indiginous groups invited were provided to the CER in CVA IR Round 1 IR #4. 2507 Environment City of Burnaby, Landowners As referenced in City of Burnaby 1.10.03d (Filing ID A3Y2E6) Trans Mountain will ensure the Reply Evidence 6.2 Prior to Operatons Superseded by NEB 141 Commitment addressed by CER Conditon 141, Not yet fled (fle with the NEB, within 3 months - Burnaby Residents (Holly operaton and testng for noise generatng equipment meets the local noise bylaws by designing and Stakeholder Conditon afer commencing operatons). Plan will address the results of post-constructon noise surveys Chan, Steve Cook, Karim installing the equipment with appropriate consideraton of noise suppression. Additonally, the Engagement - p17 - conducted at the Sumas and Burnaby Terminals and at the Westridge Marine Terminal, and Anar Dossa, Lily and testng for this equipment is normally done during regular working hours. Detailed mitgaton line 26, City of demonstratng compliance with the Britsh Columbia Oil and Gas Commission’s Britsh Columbia Frank Fan, Claudia Leung measures for this equipment have not yet been determined as this will be done during the fnal Burnaby 1.10.03d; Noise Control Best Practces Guideline (2009), and any further mitgaton that Trans Mountain will and Michael Radano), NEB phase of design and engineering. NEB Route Hearing undertake to achieve compliance. Decision Seg 7, Burnaby Residents Sec 2.3 2519 Environment Adams Lake Indian Band Trans Mountain will be hostng regional workshops along the proposed Project corridor to discuss Reply Evidence 7.1 Prior to Constructon Complete Adams Lake Indian Band (ALIB) was invited to partcipate in EPP Workshops on August 10, 2015. the Environmental Protecton Plan (EPP) and Emergency Management (EM); Adams Lake Indian Adams Lake Indian Meetng with ALIB was cancelled because ALIB elected to not atend the meetng. Trans Mountain Band (ALIB) will be invited to partcipate in collaboraton with other Aboriginal groups located in the Band - p2 - line 11 Emergency Management has hosted a series of regional workshops specifc to Emergency region. Trans Mountain is commited to contnued engagement with ALIB to discuss the Project and Management in each of the four operatonal districts (Alberta, North Thompson, Kamloops & the potental Project related efects on ALIB. Sumas). ALIB was invited to EM3 on Feburary 4, 2016 and EM4 on February 7, 2018, but did not atend. Supportng documents for the Indigenous groups invited were provided to the CER in CVA IR Round 1 IR #4. 2520 Environment Asini Wachi Nehiyawak Trans Mountain will be hostng regional workshops along the proposed Project corridor to discuss Reply Evidence 7.2 Prior to Constructon Complete Asini Wachi Nehiyawak Traditonal Band was invited to partcipate in EPP Workshops on August 10, Traditonal Band the Environmental Protecton Plan (EPP) and Emergency Management (EM); Asini Wachi Nehiyawak Asini Wachi 2015. The Meetng was held on September 16, 2016 in Edmonton Alberta. Asini Wachi Nehiyawak Traditonal Band (AWNTB) will be invited to partcipate in collaboraton with other Aboriginal groups Nehiyawak Traditonal Band was invited to the EM3 workshop on August 26, 2016. Asini Wachi Nehiyawak located in the region. Trans Mountain is commited to contnued engagement with AWNTB to Traditonal Band - p3 Traditonal Band atended the meetng on October 25, 2016 in Edmonton, Alberta. Asini Wachi discuss the Project and the potental Project related efects on AWNTB. - line 3 Nehiyawak Traditonal Band was invited to the EM3 workshop on January 18, 2018. Asini Wachi Nehiyawak Traditonal Band atended the meetng on February 13, 2018 in Edmonton, Alberta. Supportng documents for the Indiginous groups invited were provided to the CER in CVA IR Round 1 IR #4. 2522 Environment Coldwater Indian Band Trans Mountain will be hostng regional workshops along the proposed Project corridor to discuss Reply Evidence 7.4 Prior to Constructon Complete Coldwater Indian Band was invited to partcipate in EPP Workshops. The Meetng was held on the Environmental Protecton Plan (EPP) and Emergency Management (EM); Coldwater Indian Band Coldwater Indian September 16, 2015 in Kamloops, BC. Supportng documents for the Indiginous groups invited were (CIB) will be invited to partcipate in collaboraton with other Aboriginal groups located in the region. Band - p5 - line 21 provided to the CER in CVA IR Round 1 IR #4. Trans Mountain is commited to contnued engagement with CIB to discuss the Project, including routng optons, and the potental Project related efects on CIB. 2523 Environment Cowichan Tribes Trans Mountain will be hostng regional workshops along the proposed Project corridor to discuss Reply Evidence 7.5 Prior to Constructon Complete Cowichan Tribes was invited to partcipate in EPP Workshops on August 10, 2015, November 9, the Environmental Protecton Plan (EPP) Cowichan Tribes (CT) will be invited to partcipate in Cowichan Tribes - p5 2015, November 21, 2016, and January 30, 2017. Fall 2015 in Coquitlam cancelled because of collaboraton with other Aboriginal groups located in the region. As outlined in its IR response to - line 25 changes in Project requirements. Meetngs in 2016 and 2017 were cancelled because of low Natural Resources Canada (NRCan) (Filing ID A4R4G1, PDF page 3) on July 14, 2015, CT expects response to the invite. Supportng documents for the Indigenous groups invited were provided to consultaton on a number of issues to contnue afer the NEB hearing process has concluded; Trans the CER in CVA IR Round 1 IR #4. Mountain is commited to contnued engagement with CT to discuss the Project and the potental Project related efects on CT. 2524 Environment Katzie First Naton Trans Mountain will be hostng regional workshops along the proposed Project corridor to discuss Reply Evidence 7.6 Prior to Constructon Complete Katzie First Naton was invited to partcipate in EPP Workshops on August 10, 2015. Katzie First the Environmental Protecton Plan (EPP) and Emergency Management (EM); Katzie First Naton Katzie First Naton - Naton did not respond to the invitaton. Katzie First Naton was invited to EM3 on February 22, (KFN) will be invited to partcipate in collaboraton with other Aboriginal groups in the region. p6 - line 5 2016 and EM 4 on February 2, 2020. Supportng documents for the Indigenous groups invited were Project mitgaton measures will be reviewed including those that will be utlized to minimize Project provided to the CER in CVA IR Round 1 IR #4. related efects as identfed in the KFN Traditonal Land Use (TLU) study. Trans Mountain is commited to contnued engagement with KFN to discuss the Project and the potental Project related efects on KFN. 2526 Environment Lyackson First Naton Trans Mountain will be hostng regional workshops along the proposed Project corridor to discuss Reply Evidence 7.7 Prior to Constructon Complete Lyackson First Naton was invited to partcipate in EPP Workshops on November 9, 2016. The the Environmental Protecton Plan (EPP); Lyackson First Naton (LYFN) will be invited to partcipate in Lyackson First meetng cancelled because of low response to the invite. Supportng documents for the Indiginous collaboraton with other Aboriginal groups located in the region. Trans Mountain is commited to Naton - p6 - line 25 groups invited were provided to the CER in CVA IR Round 1 IR #4. contnued engagement with LYFN to discuss the Project and the potental Project related efects on LYFN. 2527 Environment Lyackson First Naton Trans Mountain acknowledges an outstanding commitment to meet with Lyackson First Naton Reply Evidence 7.7 Prior to Constructon Complete Lyackson First Naton was invited to partcipate in EPP Workshops on November 9, 2016. The (LYFN) to discuss the mitgaton measures associated with the Project as related to the Lyackson Use Lyackson First meetng cancelled because of low response to the invite. Supportng documents for the Indigenous and Occupancy Mapping Study (LUOMS). Naton p6 - line 18 groups invited were provided to the CER in CVA IR Round 1 IR #4. 2528 Environment Matsqui First Naton Trans Mountain will be hostng regional workshops along the proposed Project corridor to discuss Reply Evidence 7.8 Prior to Constructon Complete Matsqui First Naton was invited to partcipate in EPP Workshops on August 13, 2015. The workshop the Environmental Protecton Plan (EPP) and Emergency Management (EM); Matsqui First Naton Matsqui First Naton took place on September 9, 2015. (MN) will be invited to partcipate in collaboraton with other Aboriginal groups located in the - p6 - line 37 region. Trans Mountain is commited to contnued engagement with MN to discuss the Project and the potental Project related efects on MN. 2530 Environment Mets Naton of Alberta Trans Mountain will be hostng regional workshops along the proposed Project corridor to discuss Reply Evidence 7.9 Prior to Constructon Complete Mets Naton of Alberta Gunn Mets Local 55 were invited to EM workshops to EM3 on August 26, Gunn Mets Local 55 the Environmental Protecton Plan (EPP) and Emergency Management (EM); Mets Naton of Alberta Mets Naton of 2018 and September 19, 2018, and EM4 on January 18, 2018 and January 31, 2018. Mets Naton of Gunn Mets Local 55 (GML) will be invited to partcipate in collaboraton with other Aboriginal Alberta Gunn Mets Alberta Gunn Mets Local 55 atended EM 3 on October 25, 2016 and EM 4 on February 13, 2018. groups located in the region. Trans Mountain is commited to contnued engagement with GML to Local 55 - p7 - line Mets Naton of Alberta Gunn Mets Local 55 was invited to an EPP workshop on August 10, 2015 discuss the Project and the potental Project related efects on GML. 21 and atended the workshop on September 22, 2015.

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2533 Environment Musqueam Indian Band Trans Mountain will be hostng regional workshops along the proposed Project corridor to discuss Reply Evidence 7.12 Prior to Constructon Complete Musqueam Indian Band was invited to an EPP workshop on August 10, 2015 and November 12, the Environmental Protecton Plan (EPP) and Emergency Management (EM); Musqueam Indian Band Musqueam Indian 2016. Musqueam Indian Band was invited to EM4 on February 2, 2020. (MIB) will be invited to partcipate in collaboraton with other Aboriginal groups located in the Band - p8 - line 31 region. Trans Mountain is commited to contnued engagement with MIB to discuss the Project and the potental Project related efects on MIB. 2534 Environment Nooaitch Indian Band Trans Mountain will be hostng regional workshops along the proposed Project corridor to discuss Reply Evidence 7.13 Prior to Constructon Complete Nooaitch Indian Band was invited to an EPP Workshop on August 10, 2015 for a workshop on the Environmental Protecton Plan (EPP) and Emergency Management (EM); Nooaitch Indian Band Nooaitch Indian September 16, 2015. Nooaitch Indian Band was invited to a Emergency Management Workshop on (NIB) will be invited to partcipate in collaboraton with other Aboriginal groups located in the Band - p9 - line 10 February 20, 2018 for w workshop on March 6, 2018. region. Trans Mountain is commited to contnued engagement with MIB to discuss the Project and the potental Project related efects on MIB. 2535 Environment Sto:lo Collectve Trans Mountain will be hostng regional workshops along the proposed Project corridor to discuss Reply Evidence 7.15 Prior to Constructon Complete EPP Workshops were held on September 9, 2015 and September 24, 2015 with Stó:lō Collectve. the Environmental Protecton Plan (EPP) and Emergency Management (EM); Stó:lō will be invited to Stó:lo Collectve - Stó:lō Collectve was invited to EM3 February 22, 2016 on and EM4 on February 2, 2020. Supportng partcipate in collaboraton with other Aboriginal groups located in the region. Project mitgaton p10 - line 38 documents for the Indiginous groups invited were provided to the CER in CVA IR Round 1 IR #4. measures will be reviewed including those that will be utlized to minimize Project related efects as identfed in the Integrated Cultural Assessment (ICA) Report. 2538 Environment Squamish Naton Trans Mountain will be hostng regional workshops along the proposed Project corridor to discuss Reply Evidence 7.17 Prior to Constructon Complete Squamish Naton were invited to an EPP workshop on November 9, 2016, November 22, 2016. the Environmental Protecton Plan (EPP) and Emergency Management (EM); Squamish Naton will Squamish Naton - Squamish Naton did not respond to the invitaton. Squamish Naton was invited to EM2, EM3 on be invited to partcipate in collaboraton with other Aboriginal groups. Trans Mountain is commited p12 - line 23 February 22, 2016 and EM4 on February 2, 2020. Squamish Naton did not atend EM workshops. to contnued engagement with Squamish Naton (SN) to discuss the Project and the potental Project related efects on SN. 2539 Environment Stk'emlupsemc Te Trans Mountain will be hostng regional workshops along the proposed Project corridor to discuss Reply Evidence 7.18 Prior to Constructon Complete Stk'emlupsemc Te Secwepemc was invited to EM workshops on EM 3 on February 04, 2016, and Secwepemc the Environmental Protecton Plan (EPP) and Emergency Management (EM), Stk'emlupsemc Te Stk'emlupsemc Te EM4 on February 07, 2018. Stk'emlupsemc Te Secwepemc atended EM 4 on March 6, 2018. Secwepemc (SSN) will be invited to partcipate in collaboraton with other Aboriginal groups. Trans Secwepemc - p12 - Stk'emlupsemc Te Secwepemc was invited to an EPP workshop on August 10, 2015. Mountain is commited to contnued engagement with SSN to discuss the Project and the potental line 1 Project‑related efects on SSN. 2540 Environment Stz’uminus First Naton Trans Mountain will be hostng regional workshops to discuss the Environmental Protecton Plan Reply Evidence 7.19 Prior to Constructon Complete Stz'uminus First Naton was invited to an EPP Workshop on on August 10, 2015 November 09, 2016 (EPP), and Stz'uminus First Naton (Stz’uminus) will be invited to partcipate in collaboraton with Stz'uminus First with follow up on November 14, 2016, and January 30, 2017. The 2017 event was canceled due to a other Aboriginal groups. Trans Mountain is commited to contnued engagement with Stz’uminus to Naton - p12 - line lack of sufcient response to the invite. discuss the Project and the potental Project related efects on Stz’uminus. 15 2542 Environment Tsawout First Naton Trans Mountain will be hostng regional workshops to discuss the Environmental Protecton Plan Reply Evidence 7.21 Prior to Constructon Complete Tsawout First Naton was invited to partcipate in EPP Workshops on August 10, 2015. The meetng (EPP), and Tsawout First Naton (TWFN) will be invited to partcipate in collaboraton with other Tsawout First Naton cancelled because of nonengagement. Supportng documents for the Indiginous groups invited were Aboriginal groups. Trans Mountain is not able to commit to a community specifc forum with TWFN - p13 - line 24 provided to the CER in CVA IR Round 1 IR #4. at this tme. Trans Mountain is commited to contnued engagement with TWFN to discuss the Project and the potental Project related efects on TWFN 2544 Environment Tsawwassen First Naton Trans Mountain will be hostng regional workshops along the proposed Project corridor to discuss Reply Evidence 7.22 Prior to Constructon Complete Tsawwassen First Naton (TFN) was invited to an EPP Workshop on August 10, 2015, November 09, the Environmental Protecton Plan (EPP) and Emergency Management (EM), Tsawwassen First Tsawwassen First 2016, November 21, 2016 and January 30, 2017. Naton (TFN) will be invited to partcipate in collaboraton with other Aboriginal groups. Naton - p14 - line 17 2545 Environment Tsleil-Waututh Naton Trans Mountain will be hostng regional workshops along the proposed Project corridor to discuss Reply Evidence 7.23 Prior to Constructon Complete Tsleil-Waututh Naton was invited to an EPP Workshop on August 10, 2015, November 09, 2016, the Environmental Protecton Plan (EPP) and Emergency Management (EM); Tsleil-Waututh Naton Tsleil-Waututh November 21, 2016 and January 30, 2017. Tsleil-Waututh Naton was invited to EM3 on February (TWN) will be invited to partcipate in collaboraton with other Aboriginal groups. Project mitgaton Naton p15 - line 4 22, 2016 and EM4 on February 2, 2020. measures will be reviewed including those that will be utlized to minimize Project related efects as identfed in the TWN report. Trans Mountain is commited to contnued engagement with TWN to discuss the Project and the potental Project related efects on TWN. 2546 Environment Upper Nicola Band Trans Mountain will be hostng regional workshops along the proposed Project corridor to discuss Reply Evidence 7.24 Prior to Constructon Complete An EPP meetng with Upper Nicola Indian Band was held on September 16, 2015 in Kamloops BC. the Environmental Protecton Plan (EPP) and Emergency Management (EM); Upper Nicola Indian Upper Nicola Band Supportng documents for the Indigenous groups invited were provided to the CER in CVA IR Round Band (UNB) will be invited to partcipate in collaboraton with other Aboriginal groups. In its p15 - line 14 1 IR #4. evidence (flling ID A4R414), UNB requested contnued consultaton with Trans Mountain regarding the Project on multple maters, Trans Mountain acknowledges that Upper Nicola Indian Band has requested that engagement with Trans Mountain remain confdental. 2611 Environment NEB Trans Mountain will incorporate expansion of the Burnaby Terminal into its existng stormwater Applicaton Volume During Constructon In Progress Proof of completon will the the Technical Assessment Reports that accompany the permit monitoring program, whereby Trans Mountain will contnue to monitor fash drainage events in an 5A s. 7.5.3.4 p7-384 amendment applicatons. efort to identfy potental efects and implement necessary measures to reduce or avoid Project- related efects to the Eagle Creek watershed. 2819 Environment City of Burnaby Working with the City of Burnaby, Trans Mountain would be willing to collaboratvely develop an City of Burnaby No. Prior to Constructon Complete No impacts are planned to any trail along the tunnel alignment, however monitoring may be approach to constructon that minimized potental impacts on the Barnet Escarpment Urban Trail 2.100 required along the alignment so no guarantee can be made that short duraton closure wouldn’t be prior to constructon. Possible mitgaton measures could include pre-building sectons of the trail in required. If short duraton closures are required KLTP will work with the City of Burnaby to provide advance of closing existng sectons required for constructon. This approach would minimize or an alternate route around any closure, if required. eliminate impacts to trail users. 2971 Environment Metro Vancouver Trans Mountain commits to meet with Metro Vancouver to discuss the methodology and results. Metro Vancouver IR Prior to Constructon Complete A meetng was held with Metro Vancouver and other stakeholders on February 17, 2017 where No. 1.6.04b- methodology and results were discussed. Response to Moton

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3018 Environment NEB Trans Mountain will employ an “early in/early out” approach by initatng constructon actvites as Applicaton Volume During Constructon No Longer Wildlife Areas for reactvaton works are provided in Appendix J of the Reactvaton EPP. No Caribou early as possible in the winter and working expeditously to limit late winter actvites. Additonally, 5A; Technical Applicable ranges or Key Wildlife Biodiversity Areas are encountered. (Caribou Matrix range has no tming Trans Mountain will discuss the tming of their actvity with Alberta Energy Regulator (AER) and Update No. 1 and restricton). maintain contact with AER during the constructon period to advise them of the constructon Consultaton Update progress and antcipated completon date within Key Wildlife Biodiversity Zones. Constructon, No. 2 - Part 2 Table routne maintenance and operaton actvites will be scheduled outside the spring period for 1.6.2-1 caribou. (Reactvaton Hinton to Hargreaves) 3026 Environment NEB Trans Mountain will schedule constructon, routne maintenance and operatonal actvites outside NEB IR No. 3.010a- During Constructon No Longer Wildlife Areas for reactvaton works are provided in Appendix J of the Reactvaton EPP. No Caribou the spring period for caribou (generally mid-March to mid-July), unless otherwise approved by Atachment 1 Applicable ranges or Key Wildlife Biodiveristy Areas are encountered. (Caribou Matrix range has no tming Alberta Environment and Sustainable Resource Development (AESRD). (Reactvaton Hinton to restricton). Hargreaves) 3036 Environment NEB Trans Mountain will develop and implement an environmental educaton program to ensure that all NEB IR No. 3.010a- Prior to Constructon Complete Level 1 training includes an overview of Environmental Features and How to Identfy Them, TMEP personnel working on the constructon of the Project are informed of the locaton of known Atachment 1 Environmental Documents and Archaeology/ Paleontology as outlined in the Conditon 72 Traditonal Land Use (TLU) sites. These sites may be identfed to Trans Mountain through the Environmental Compliance Management Plan (CER Filing ID C03070) in Table 5-1, Page: 10. Cultural and Heritage Study Trans Mountain has commited to fund through Stkemlupsemc Te Secwepemc Naton (SSN) member, Tk’emlups te Secwepemc. 3125 Environment NEB Trans Mountain has commited to searching for bat roost trees during the period when maternity Revised Final During Constructon In Progress Proof of completon will be a memo prepared by the resource specialists. roosts are actve. In the event an actve roost tree is found, a protectve bufer will be implemented Argument s. 7.2.1.11 based on consultaton with provincial regulators. p285 3126 Environment NEB Trans Mountain has commited to reviewing and identfying actve colonies that may be afected by Revised Final During Constructon In Progress Proof of completon will be a memo prepared by the resource specialists. constructon actvites in areas with high suitability habitat for swifs and swallows to ensure Argument s. 7.2.1.11 appropriate mitgaton is implemented. p286 3273 Environment Sto:lo Collectve A copy of the draf Archaeological Impact Assessment (AIA) fnal report will be forwarded in Sto:lo Collectve Prior to Constructon Complete The 2016 Archaeological Impact Assessment Annual Report for the Trans Mountain Expansion confdence to the Sto:lo Collectve for review, comment and proposed edits before submission of the Atachment - Table Project was submited to Sto:lo Naton on March 3, 2017. report to Britsh Columbia Ministry of Forests, Lands and Natural Resource Operatons (BC MFLNRO) 3a Archaeology Branch. Once accepted by BC MFLNRO Archaeology Branch, a copy of the fnal AIA report will be forwarded in confdence to the Sto:lo Collectve. 3367 Environment City of Abbotsford Restoraton strategies, including those for tree replacement will be developed in consultaton with City of Abbotsford IR Prior to Constructon In Progress Proof of completon is the restoraton strategies document as accepted by the City of Abbotsford. applicable landowners, the City of Abbotsford (on municipal lands) or the regulatory authority No. 2.2.07d, City of responsible for the management of Crown lands. Abbotsford IR No. 2.2.09d 3417 Environment C.G.L.A.P. - Collaboratve Trans Mountain is commited to systematc and tmely communicaton with farm operators. Based CGLAP IR No. 2.8b Prior to Constructon Superseded by NEB 72 Commitment addressed by CER Conditon 72, CER Filing ID C01961, Conditon 72 Pipeline EPP, Group of Landowners on this communicaton, detailed biosecurity measures will be developed collaboratvely between the Conditon Secton 5.0, 7.0, Secton 2.2 and 2.3 in Appendix G Page: 12, 25, 26, G-24 to G-25, G-33, G-37 to G- Afected by Pipelines farm operator and Trans Mountain. 38. 3739 Environment BC Ministry of Trans Mountain commits to the following for the Coldwater 4 geotechnical site: using natural Non-Regulatory Prior to Constructon Complete Three Post-Reclamaton Assessments were prepared by McTavish Resource & Managemetn Transportaton and clearings to minimize disturbance and no clearing is proposed; transportng all drilling mud of-site Commitment Consultng for the drilling locatons (BH-BGC15-CW4-01, BH-BGC15-CW4-02, BH-BGC15-CW4-03). Infrastructure for disposal at an approved facility. In the event that the drilling mud is to be disposed of on-site, the requirements outlined in the Britsh Columbia Oil and Gas Handbook, Drilling Waste Management Chapter, will be adhered to. 3824 Environment Matsqui First Naton Trans Mountain commits to use a Matsqui member as an environmental monitor in Matsqui Matsqui First Naton During Constructon Superseded by NEB 98 Commitment addressed by CER Conditon 98, CER Filing ID C00105, Conditon 98 , Plan for Traditonal Territory. Leter dated October Conditon Indigenous Group Partcipaton in Constructon Monitoring, Secton 3.1, Page: 5. 2, 2015 to Margaret Mears item b. 3825 Environment Matsqui First Naton Trans Mountain commits to use a Matsqui member as an environmental monitor in Matsqui Matsqui First Naton During Constructon Superseded by NEB 98 Commitment addressed by CER Conditon 98, CER Filing ID C00105, Conditon 98 , Plan for Traditonal Territory. Leter dated October Conditon Indigenous Group Partcipaton in Constructon Monitoring, Secton 3.1, Page: 5. 2, 2015 to Margaret Mears item b. 3826 Environment Environment Canada Trans Mountain will ensure all constructon right-of-way clearing actvites and site reclamaton GoC EC IR No. 2.122 During Constructon No Longer Repealed by BC Reg. 40/2019, Efectve March 6, 2019. actvites around the Chilliwack and Cascades Forest District boundary are in accordance with the Applicable Plant Protecton Act – Balsam Woolly Adelgid (B.C. Reg. 414/92). The movement of any tree of Abies species will not be moved to any place outside of the quarantne area. Additonally, logs of Abies species that are moved out of the quarantne zone must be transported and stored in water and promptly processed to avoid the spread of the Balsam Woolly Adelgid. 3827 Environment Environment Canada Trans Mountain will ensure all constructon right-of-way clearing actvites and site reclamaton GoC EC IR No. 2.122 During Constructon No Longer Repealed by BC Reg. 40/2019, Efectve March 6, 2019. actvites around the Chilliwack and Cascades Forest District boundary are in accordance with the Applicable Plant Protecton Act – Balsam Woolly Adelgid (B.C. Reg. 414/92). The movement of any tree of Abies species will not be moved to any place outside of the quarantne area. Additonally, logs of Abies species that are moved out of the quarantne zone must be transported and stored in water and promptly processed to avoid the spread of the Balsam Woolly Adelgid. 3830 Environment Sto:lo Collectve Trans Mountain will recognize places names (such as on Project maps, signs and fencing) during the Sto:lo Collectve During Constructon In Progress Proof of completon is the Conditon 151 Post-constructon environmental monitoring reports. constructon of the Project. Recommendaton #45

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3831 Environment Sto:lo Collectve Trans Mountain will recognize places names (such as on Project maps, signs and fencing) during the Sto:lo Collectve During Constructon In Progress Proof of completon is the Conditon 151 Post-constructon environmental monitoring reports. constructon of the Project. Recommendaton #45 3839 Environment Matsqui First Naton Trans Mountain will deliver a stand alone list of actons and commitments to the Matsqui Lands Matsqui First Naton Prior to Constructon Complete The Matsqui First Naton Commitments Table was delivered to Matsqui on June 1, 2017 via email. Manager no later than 90 days before constructon. This document will list the actons to avoid, Leter dated October mitgate and compensate for Project efects that will be binding on Trans Mountain as a necessary 2, 2015 to Margaret element of the Matsqui First Naton Environmental Assessment. Mears item c3 3840 Environment Matsqui First Naton Trans Mountain will deliver a stand alone list of actons and commitments to the Matsqui Lands Matsqui First Naton Prior to Constructon Complete The Matsqui First Naton Commitments Table was delivered to Matsqui on June 1, 2017 via email. Manager no later than 90 days before constructon. This document will list the actons to avoid, Leter dated October mitgate and compensate for Project efects that will be binding on Trans Mountain as a necessary 2, 2015 to Margaret element of the Matsqui First Naton Environmental Assessment. Mears item c3 3841 Environment Sto:lo Collectve Trans Mountain will be hostng regional workshops along the proposed Project corridor to discuss Reply Evidence 7.15 Prior to Constructon Complete EPP Workshops were held on September 9, 2015 and September 24, 2015 with Stó:lō Collectve. the Environmental Protecton Plan (EPP) and Emergency Management (EM); Stó:lō will be invited to Stó:lo Collectve - Stó:lō Collectve was invited to EM3 February 22, 2016 on and EM4 on February 2, 2020. Supportng partcipate in collaboraton with other Aboriginal groups located in the region. Project mitgaton p10 - line 38 documents for the Indiginous groups invited were provided to the CER in CVA IR Round 1 IR #4. measures will be reviewed including those that will be utlized to minimize Project related efects as identfed in the Integrated Cultural Assessment (ICA) Report. 3842 Environment Sto:lo Collectve Trans Mountain will be hostng regional workshops along the proposed Project corridor to discuss Reply Evidence 7.15 Prior to Constructon Complete EPP Workshops were held on September 9, 2015 and September 24, 2015 with Stó:lō Collectve. the Environmental Protecton Plan (EPP) and Emergency Management (EM); Stó:lō will be invited to Stó:lo Collectve - Stó:lō Collectve was invited to EM3 February 22, 2016 on and EM4 on February 2, 2020. Supportng partcipate in collaboraton with other Aboriginal groups located in the region. Project mitgaton p10 - line 38 documents for the Indiginous groups invited were provided to the CER in CVA IR Round 1 IR #4. measures will be reviewed including those that will be utlized to minimize Project related efects as identfed in the Integrated Cultural Assessment (ICA) Report. 3843 Environment Squamish Naton Trans Mountain will be hostng regional workshops along the proposed Project corridor to discuss Reply Evidence 7.17 Prior to Constructon Complete Squamish Naton were invited to an EPP workshop on November 9, 2016, November 22, 2016. the Environmental Protecton Plan (EPP) and Emergency Management (EM); Squamish Naton will Squamish Naton - Squamish Naton did not respond to the invitaton. Squamish Naton was invited to EM2, EM3 on be invited to partcipate in collaboraton with other Aboriginal groups. Trans Mountain is commited p12 - line 23 February 22, 2016 and EM4 on February 2, 2020. Squamish Naton did not atend EM workshops. to contnued engagement with Squamish Naton (SN) to discuss the Project and the potental Project related efects on SN. 3853 Environment Sto:lo Collectve Where water quality monitoring fails to meet the parameters of established guidelines and is not in Sto:lo Collectve During Constructon Superseded by NEB 72 Commitment addressed by CER Conditon 72, CER Filing ID C01961, Conditon 72 Pipeline EPP, compliance with regulatory requirements, Trans Mountain will report the incident to Sto:lo Recommendaton Conditon Appendix B, Atachment B1 Spill Scene Checklist, Page: B1-1. representatves within the requested tmeframe. #11 3854 Environment Sto:lo Collectve Where water quality monitoring fails to meet the parameters of established guidelines and is not in Sto:lo Collectve During Constructon Superseded by NEB 72 Commitment addressed by CER Conditon 72, CER Filing ID C01961, Conditon 72 Pipeline EPP, compliance with regulatory requirements, Trans Mountain will report the incident to Sto:lo Recommendaton Conditon Appendix B, Atachment B1 Spill Scene Checklist, Page: B1-1. representatves within the requested tmeframe. #11 3857 Environment Sto:lo Collectve Trans Mountain's procurement team and Chief Environmental Inspector will discuss the Sto:lo Collectve Prior to Constructon Superseded by NEB 98 Commitment addressed by CER Conditon 98, CER Filing ID C00105, Conditon 98 Plan for requirements and existng capacity re: qualifed monitoring personnel and services with the Sto:lo Recommendaton Conditon Indigenous Group Partcipaton in Constructon Monitoring, Entre Plan outlines Trans Mountain's representatves. #13, #14, #26, #40, plan and commitment to retain Indigenous Monitors. #41, #52 3858 Environment Sto:lo Collectve Trans Mountain's procurement team and Chief Environmental Inspector will discuss the Sto:lo Collectve Project Lifecycle Superseded by NEB 98 Commitment addressed by CER Conditon 98, CER Filing ID C00105, Conditon 98 Plan for requirements and existng capacity re: qualifed monitoring personnel and services with the Sto:lo Recommendaton Conditon Indigenous Group Partcipaton in Constructon Monitoring, Entre Plan outlines Trans Mountain's representatves. #13, #14, #26, #40, plan and commitment to retain Indigenous Monitors. #41, #52 A4S7H3 3859 Environment Sto:lo Collectve If clearing in Old Growth Management Areas (OGMAs) within the S’ólh Téméxw becomes an Sto:lo Collectve Prior to Constructon No Longer No OGMA are encountered in Spread 7. Conditon 72, CER Filing ID C03931, Spread 7 RSMT, Secton approved constructon requirement, Trans Mountain will discuss Sto:lo’s desire to salvage cedar with Recommendaton Applicable 5.2, Page: 26. the OGMA regulator and the terms for commercial harvest will be negotated (Spread 7). #29 3860 Environment Sto:lo Collectve Trans Mountain will provide advance notfcaton of planned herbicide applicaton to the Sto:lo Sto:lo Collectve Project Lifecycle Superseded by NEB 72 Commitment addressed by CER Conditon 72, CER Filing ID C01961, Conditon 72 Pipeline EPP, representatves. Recommendaton Conditon Secton 7.0, Page: 26 (Measure 81). #37 3861 Environment Sto:lo Collectve Trans Mountain will provide advance notfcaton of planned herbicide applicaton to the Sto:lo Sto:lo Collectve During Constructon Superseded by NEB 72 Commitment addressed by CER Conditon 72, CER Filing ID C01961, Conditon 72 Pipeline EPP, representatves. Recommendaton Conditon Secton 7.0, Page: 26 (Measure 81). #37 3884 Environment NEB Trans Mountain commits to updatng the Traditonal Land Use Sites Discovery Contngency Plan as NEB Cond IR No. Prior to Constructon Complete CER Filing ID C08265, Conditon 81 Westridge Marine Terminal EPP. Mitgaton measures for fshing, part of the Westridge Marine Terminal Environmental Protecton Plan prior to constructon with 25.3 trapping, plant gathering, and trails and travelways specifc to marine terminal constructon have mitgaton measures for fshing, trapping, plant gathering, and trails and travelways specifc to been added to Secton 10.0 in Appendix B, Page: B-25 to B-27. marine terminal constructon. 3885 Environment NEB Trans Mountain commits to updatng the Westridge Marine Terminal (WMT) Environmental NEB Cond IR No. Prior to Constructon Superseded by NEB 81 Commitment addressed by Conditon 81, CER Filing ID A89187, A90973, A93178, C08265. Plans Protecton Plan, prior to constructon, to include any new or revised mitgaton measures that result 25.4 Conditon were updated since the 2017 EPP. Communicatons with DFO on the EPP or mitgaton measures from further consultatons with Fisheries and Oceans Canada (DFO) or through issuance of the were on September 28, 2017, December 14, 2017. Fisheries Act Authorizaton for the WMT. 3886 Environment NEB Trans Mountain commits to implementng access management across the TMEP and TMPL rights-of- NEB Cond IR No. During Constructon Superseded by NEB 56, 47 Commitment addressed by Conditon 47 and Conditon 56. Mitgaton measures outlined in the way in suitable locatons where the Project is contguous with the TMPL right-of-way. 26.2;NEB Cond IR Conditon Pipeline EPP. Filing ID C01961, Conditon 72 Pipeline EPP, Secton 2.1 and Secton 6.3 in Appendix G No. 27.8 of the Pipeline EPP, Page: G-10 to G-20, Page G-95.

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3887 Environment NEB Trans Mountain commits to documentng and reportng to the NEB the locatons of existng access NEB Cond IR No. During Constructon Superseded by NEB 47 Commitment addressed by CER Conditon 47. CER Filing ID A90912, Conditon 47 Access management on the contguous sectons of the TMPL right-of-way, and the access management 26.2;NEB Cond IR Conditon Management Plan, Secton 6.5, Page: 41. measures implemented during or upon completon of Project constructon at each locaton or the No. 27.8 ratonale for not implementng access management. 3890 Environment NEB Trans Mountain commits to reportng the fnal access management locatons to the NEB with the NEB Cond IR No. During Operatons Superseded by NEB 47 Commitment addressed by CER Conditon 47. CER Filing ID A90912, Conditon 47 Access Post-Constructon Environmental Monitoring (PCEM) reports. 27.6 Conditon Management Plan, Secton 3.5 and 6.5, Page: 20, 41. 3891 Environment NEB Trans Mountain commits to updatng the Species at Risk Mitgaton and Habitat Restoraton Plans to NEB Cond IR No. Prior to Constructon Superseded by NEB 44 Commitment addressed by Conditon 44, CER Filing ID A90910, Conditon 44 Western Screech-Owl provide clarity regarding which mitgaton measures will be applied, as indicated in this IR response. 28.13 Conditon Mitgaton and Habitat Restoraton Plan, Table 4, Page: 21 to 37. CER Filing ID A85074, American Badger Mitgaton and Habitat Restoraton Plan Table 2, Page: 15 to 21 CER Filing ID A90911 Conditon 44 Pacifc Water Shrew Mitgaton and Habitat Restoraton Plan Table 4, Page: 28 to 35. CER Filing ID A90905, Conditon 44 Coastal Giant Salamander Mitgaton and Habitat Restoraton Plan, Table 4, Page: 22 to 30. CER Filing ID A85074, Conditon 44 Townsend’s Mole Mitgaton and Habitat Restoraton Plan, Table 4, Page: 17 to 21 CER Filing ID A90906, Conditon 44 Williamson’s Sapsucker and Lewis’s Woodpecker Mitgaton and Habitat Restoraton Plan, Table 5, Page: 27 to 33 CER Filing ID A90907, Conditon 44 Oregon Spoted Frog Mitgaton and Habitat Restoraton Plan, Table 3, Page: 20 to 26 CER Filing ID A85074, Conditon 44 Barn Owl Mitgaton and Habitat Restoraton Plan, Table 4, Page: 17 to 23 CER Filing ID A85074, Conditon 44 Great Basin Spadefoot Mitgaton and Habitat Restoraton Plan, Table 8, Page: 24 to 29 CER Filing ID A85074, Conditon 44 Oregon Forestsnail Mitgaton and Habitat Restoraton Plan, Table 4, Page: 27 to 32 CER Filing ID A85074, Conditon 44 Western Ratlesnake and Great Basin Gophersnake Mitgaton and Habitat Restoraton Plan, Table 5, Page: 22 to 28. 3892 Environment NEB Trans Mountain commits to retaining and replacing cover objects within areas of core terrestrial and NEB Cond IR No. Prior to Constructon Superseded by NEB 44 Commitment addressed by CER Conditon 44. Mitgaton measures that will be applied are in connectvity habitat for Great Basin spadefoot. 28.16 Conditon Appendix G of the Pipeline EPP, CER Filing ID C01961, Pipeline EPP, Secton 6.4.1.5 in Appendix G of the Pipeline EPP, Page: G-108. 3893 Environment NEB Trans Mountain commits to assuming that critcal habitat is present in the forested areas of NEB Cond IR No. Prior to Constructon Superseded by NEB 44 Commitment addressed by CER Conditon 44. Mitgaton measures that will be applied are in connectve critcal habitat for coastal giant salamander that have not been surveyed (< 2.5 km) and 28.2 Conditon Appendix G of the Pipeline EPP, CER Filing ID C01961, Pipeline EPP, Secton 6.4.1.6 in Appendix G of will apply the avoidance, mitgaton and restoraton measures from the relevant Plan. the Pipeline EPP, Page: G-110. 3894 Environment NEB Trans Mountain commits to assuming that critcal habitat is present in the small segment of refned NEB Cond IR No. Prior to Constructon Superseded by NEB 44 Commitment addressed by CER Conditon 44. Mitgaton measures that will be applied are in Lewis’s woodpecker proposed critcal habitat where land access was not granted (680 m) and will 28.2 Conditon Appendix G of the Pipeline EPP, CER Filing ID C01961, Pipeline EPP, Secton 6.4.1.1 in Appendix G of apply the avoidance, mitgaton and restoraton measures from the relevant Plan. the Pipeline EPP, Page: G-96. 3895 Environment NEB Trans Mountain is commited to allowing only those who have received the noted environmental NEB Cond IR No. Prior to Constructon Superseded by NEB 44 Commitment addressed by Conditon 44, CER Filing ID A90910, Conditon 44 Western Screech-Owl and compliance educaton to work in areas identfed in the Conditon 44 Plans. If personnel are 28.22 Conditon Mitgaton and Habitat Restoraton Plan, Secton 7.7.2, Page: 31. CER Filing ID A85074, American found to have commenced work within these areas without the training, they will cease work untl Badger Mitgaton and Habitat Restoraton Plan, Secton 7.2.2, Page: 24. CER Filing ID A90911 they have received the training. Conditon 44 Pacifc Water Shrew Mitgaton and Habitat Restoraton Plan Secton 7.2.2, Page: 40. CER Filing ID A90905, Conditon 44 Coastal Giant Salamander Mitgaton and Habitat Restoraton Plan, Secton 7.2.1, Page: 34. CER Filing ID A85074, Conditon 44 Townsend’s Mole Mitgaton and Habitat Restoraton Plan, Secton 7.2.2, Page: 24 CER Filing ID A90906, Conditon 44 Williamson’s Sapsucker and Lewis’s Woodpecker Mitgaton and Habitat Restoraton Plan, Secton 7.2.2, Page: 38 CER Filing ID A90907, Conditon 44 Oregon Spoted Frog Mitgaton and Habitat Restoraton Plan, Secton 7.2.1, Page: 29. CER Filing ID A85074, Conditon 44 Barn Owl Mitgaton and Habitat Restoraton Plan, Secton 7.2.2, Page: 26 CER Filing ID A85074, Conditon 44 Great Basin Spadefoot Mitgaton and Habitat Restoraton Plan, Secton 7.2.2, Page: 34. CER Filing ID A85074, Conditon 44 Oregon Forestsnail Mitgaton and Habitat Restoraton Plan, Secton 7.2.2, Page: 36 CER Filing ID A85074, Conditon 44 Western Ratlesnake and Great Basin Gophersnake Mitgaton and Habitat Restoraton Plan, Secton 7.2.2, Page: 31. 3897 Environment NEB Trans Mountain commits to providing the Board with an update on Project efects within early draf NEB Cond IR No. Prior to Constructon Superseded by NEB 44 This commitment is addressed by CER Conditon 44, CER Filing ID A85074, American Badger critcal habitat for each of American badger and Western screech-owl, including all aspects of 28.8 Conditon Mitgaton and Habitat Restoraton Plan, Secton 3.2, Page: 8 Conditon 44, CER Filing ID A90910, Conditon 44 requirements, should the Raf River contngency alternate be required for the Project. Conditon 44 Western Screech-Owl Mitgaton and Habitat Restoraton Plan, Secton 3.2, Page: 9. 3898 Environment NEB Trans Mountain commits to revisitng the area near KP 1118.8 to search for evidence of Townsend’s NEB Cond IR No. Prior to Constructon Superseded by NEB 44 Commitment addressed by CER Conditon 44. Mitgaton measures that will be applied are in mole. If presence is confrmed, the measures in the Plan will be applied. 28.9 Conditon Appendix G of the Pipeline EPP, CER Filing ID C01961, Pipeline EPP, Secton 6.4.1.4 in Appendix G of the Pipeline EPP, Page: G-105. 3899 Environment NEB Trans Mountain commits to revisitng the suspected Lewis woodpecker nest site near KP 845.3 if NEB Cond IR No. Prior to Constructon Superseded by NEB 44 Commitment addressed by CER Conditon 44. Mitgaton measures that will be applied are in clearing or constructon occurs within the migratory bird nestng period. If the nest is actve, the 28.9 Conditon Appendix G of the Pipeline EPP, CER Filing ID C01961, Pipeline EPP, Secton 6.4.1.1 in Appendix G of appropriate bufer will be implemented. the Pipeline EPP, Page: G-96. 3900 Environment NEB Trans Mountain commits to applying the avoidance, mitgaton and habitat restoraton measures for NEB Cond IR No. Prior to Constructon Superseded by NEB 44 Commitment addressed by CER Conditon 44, CER Filing ID A85074, Conditon 44 Oregon Forestsnail Oregon forestsnail from KP 1054.0 to KP 1054.1 and KP 1077.3 to KP 1077.4. 28.9 Conditon Mitgaton and Habitat Restoraton Plan, Secton 5.3, Page: 26 to 32. Updated mitgaton measures are found in Appendix G of the Pipeline EPP, CER Filing ID C01961, Pipeline EPP, Secton 6.4.1.2 in Appendix G of the Pipeline EPP, Page: G-99 to G-100. 3902 Environment NEB Trans Mountain commits to updatng the Conditon 71: Riparian Habitat Management Plan to NEB Cond IR No. Prior to Constructon Complete Commitment addressed by CER Conditon 71, CER Filing A90936, Conditon 71 Riparian Habitat include any new mitgaton measures or changes to proposed mitgaton measures resultng from 29.6 Management Plan, Secton 3.3.2, 6.0, 6.3 Page: 15, 45 to 48, 50. concerns raised by Environment and Climate Change Canada, as described in this IR response. This includes monitoring all riparian habitats that received pre-constructon feld surveys for vegetaton and wildlife and also monitoring of all high-sensitvity for fsh watercourse crossings.

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3903 Environment NEB Trans Mountain commits to including the evaluaton of 'performance indicator against measurable NEB Cond IR No. During Operatons Complete Commitment addressed by CER Conditon 71, CER Filing A90936, Conditon 71 Riparian Habitat targets informaton' for monitoring years one and three in the fve year Post-Constructon 29.7 Management Plan, Secton 6.0 Page: 45 to 48. Environmental Monitoring (PCEM) report (NEB Conditon 151). 3906 Environment NEB Trans Mountain commits to ensuring that personnel who have not received the environmental and NEB Cond IR No. During Constructon Superseded by NEB 38 Commitment addressed by CER Conditon 38, CER Filing ID A85803, Conditon 38 Sowaqua Spoted compliance educaton will not work within the Sowaqua Spoted Owl Wildlife Habitat Area (WHA) 14.11 Conditon Owl Mitgaton Plan, Secton 7.2.2, Page: 30. untl they have received the training, and that if personnel are found to have commenced work within the WHA without the training, they will cease work in the WHA untl they have received the training. 3907 Environment NEB Trans Mountain commits to updatng the Facilites Environmental Protecton Plan as indicated in this NEB Cond IR No. Prior to Constructon Complete Statement has been added to the Facilites EPP. CER Filing ID C06991, Conditon 78 Facilites EPP, IR response and submitng it to the NEB prior to constructon. 34.10 Secton 7.2, Page: 7-5. 3908 Environment NEB Trans Mountain commits to updatng the Pipeline and Facility Environmental Protecton Plans (EPP) NEB Cond IR No. Prior to Constructon Complete CER Filing ID C01961, Conditon 72 Pipeline EPP, Secton 7.0, Page: 19. CER Filing ID C06991, to refect the migratory bird nestng period throughout the EPP, and where clearing and constructon 34.11 Conditon 78 Facilites EPP, Secton 6.0, Appendix D, Page: 6-2, Table D-1. CER Filing ID C08265, outside of the migratory bird nestng period is not feasible, Trans Mountain will implement the Conditon 81 Westridge Marine Terminal EPP, Secton 6.0, Appendix D, Page: 6-3, Table D-1. mitgaton measures outlined under “General Measures”, including nest sweeps. 3909 Environment NEB Trans Mountain commits to updatng the Compliance Management Plan, Vol. 10 of the NEB Cond IR No. Prior to Constructon Superseded by NEB 72, 78, 81 Commitment addressed by CER Conditon 72, CER Filing ID A90970, Conditon 72 Compliance Environmental Plans, to refect the terminology specifed in this IR response and submit them to the 34.12 Conditon Management Plan, Terminology updated throughout Plan, Secton 4.4, Page: 26. The 2018 Rev 4 NEB prior to constructon. CMP was be updated to refect this terminology and was approved by the NEB. Trans Mountain notes that the 2019 Rev 5 version of this document was updated to outline current roles and responsibilites and refers to Conditon 88. The 2019 Rev 5 ECMP further specifes that the feld change process addresses minor modifcatons to specifcatons for environmental mitgatons that have been previously approved for the Project that do not pose a signifcant risk to safety, security or protecton of the environment. 3910 Environment NEB Trans Mountain commits to making the amendments identfed in this IR response in the Spill NEB Cond IR No. Prior to Constructon Superseded by NEB 72 CER Conditon 72, CER Filing ID C01961, Conditon 72 Pipeline EPP, Secton 11.4.3 of Appendix B, Contngency Plan Secton 11.4.3. of the Pipeline Environmental Protecton Plan. 34.8 Conditon Page: B-30 to B-31. 3911 Environment NEB Trans Mountain commits to consultng with the B.C. Ministry of Environment to determine if NEB Cond IR No. Prior to Constructon Superseded by NEB 40 Commitment addressed by CER Conditon 40, CER Filing ID A90904, Conditon 40 Rare Ecological additonal mitgaton for the historical populaton of Vancouver Island Beggartcks is appropriate and, 38.3 Conditon Community and Rare Plant Populaton Management Plan, Secton 3.4.6, Page: 16. if so, what kind of mitgaton would be appropriate. 3912 Environment NEB Trans Mountain commits to updatng and resubmitng the Rare Ecological Community and Rare NEB Cond IR No. Prior to Constructon Complete CER Filing ID A90904, Rare Ecological Community and Rare Plant Populaton Management Plan, Plant Populaton Management Plan, if additonal mitgaton is determined to be appropriate through 38.3 Appendix A, Appendix E, Page: A-10, A-12, E-18. consultaton with the B.C. Ministry of Environment, for the historical populaton of Vancouver Island Beggartcks. 3915 Environment NEB Trans Mountain commits to implementng the mitgaton measures listed in the Wildlife Species of NEB Cond IR No. Prior to Constructon Superseded by NEB 78 Commitment addressed by CER Conditon 78, CER Filing ID C06991, Conditon 78 Facilites EPP, Concern Discovery and Encounter Contngency Plan in the event that wildlife species of concern or 39.1 Conditon Secton 11 in Appendix B, Page: B-27 to B-29. habitat feature is discovered during constructon. 3916 Environment NEB Trans Mountain commits to updatng Appendix D: Resource-specifc Mitgaton Tables to reference NEB Cond IR No. Prior to Constructon Complete Conditon 78, Facilites EPP, CER Filing ID C06991, Appendix D, Page: D-2 to D-9. all mitgaton measures for wildlife as outlined in Secton 6.0 of the Facilites Environmental 39.2 Protecton Plan (EPP). 3917 Environment NEB Trans Mountain commits to updatng Appendix D: Resource-specifc Mitgaton Tables for Blackpool, NEB Cond IR No. Prior to Constructon Complete Conditon 78, Facilites EPP, CER Filing ID C06991, Appendix D, Page: D-5 to D-6. Darfeld, Black Pines and Kamloops pump statons to reference the Species of Concern mitgaton 39.3 measures for wildlife as outlined in Secton 6.0 of the Facilites Environmental Protecton Plan (EPP). 3918 Environment NEB Trans Mountain commits to updatng the Facilites Environmental Protecton Plan (EPP) with a NEB Cond IR No. Prior to Constructon Complete Statement referencing the Trafc Control Plans for public roadways was added to Secton 6.0 reference to the Trafc Control Plans for public roadways. Secton 7.3 of the Facilites Environmental 39.4 (General Measures), not Secton 7.3 of the Facilites EPP. Secton 7.3 is applicable to clearing Protecton Plan (EPP) will be updated. actvites, and the Trafc Control Plans for Public Roadways will be adhered to throughout all phases of constructon. Conditon 78 Facilites EPP, CER Filing ID C06991, Secton 6.0, Page: 6-6. 3919 Environment NEB Trans Mountain commits to updatng the mitgaton measures for Traditonal Land Use (TLU) NEB Cond IR No. Prior to Constructon Complete Commitment addressed by CER Conditon 78, CER Filing ID C06991, Conditon 78 Facilites EPP, actvites related to trapping, fshing, plant gathering, and trails and travelways specifc to facilites 39.5 Secton 9.0 in Appendix B, Page: B-21 to B-23. constructon actvites, as warranted in the TLU Sites Discovery Contngency Plan as part of the Facilites Environmental Protecton Plan (EPP) prior to constructon. 3921 Environment NEB Trans Mountain commits to updatng Conditon 78: Temporary Constructon Lands and Infrastructure NEB Cond IR No. Prior to Constructon Complete Conditon 78, Temporary Constructon Lands and Infrastructure EPP, CER Filing ID A85826, Change Environmental Protecton Plan with any relevant informaton from NEB Informaton Request No. 25, 39.7 Log Rev 2 outlines changes made for IR 25, Conditon 78, Temporary Constructon Lands and Westridge Marine Terminal Environmental Protecton Plan. Infrastructure EPP Rev 4, CER Filing ID C05815, includes these updates. 3922 Environment NEB Trans Mountain commits to relocatng the Horizontal Directonal Drilling (HDD) Noise Management NEB Cond IR No. Prior to Constructon Complete HDD Noise Management Plan are now located in Secton 2.9 of Volume 6 of the Environmental Plan to Secton 2.0 of the Environmental Management Plans (Volume 6). 40.1 Plans. 3923 Environment NEB Trans Mountain commits to updatng the Environmental Alignment Sheet (EAS) Guide to provide NEB Cond IR No. Prior to Constructon Complete CER Conditon 72, CER Filing ID C00470 (Spread 1), EAS Notes, Page: 2. CER Filing ID C00475 (Spread guidance for events where previously unidentfed environmental features are encountered. 40.11 2), EAS Notes, Page: 2. CER Filing ID C05272 (Spread 3/4a), EAS Notes, Page: 2. CER Filing ID C03930 (Spread 4b), EAS Notes, Page: 2 CER Filing ID C04634 (Spread 5a), EAS Notes, Page: 2. CER Filing ID C05600 (Spread 5b), EAS Notes, Page: 2 CER Filing ID C03931 (Spread 7), EAS Notes, Page: 2. 3924 Environment NEB Trans Mountain commits to updatng the Environmental Alignment Sheets with a coloured band to NEB Cond IR No. Prior to Constructon Complete Conditon 72, CER Filing ID C00470 (Spread 1), EAS Notes, Page: 2. CER Filing ID C00475 (Spread 2), identfy and diferentate between the areas Trans Mountain determined to have contaminaton 40.12 EAS, Page: All. CER Filing ID C05272 (Spread 3/4a), EAS, Page: All. CER Filing ID C03930 (Spread 4b), present through intrusive sampling, areas of high risk for contaminaton, and areas of moderate risk EAS, Page: All. CER Filing ID C04634 (Spread 5a), EAS, Page: All. CER Filing ID C05600 (Spread 5b), for contaminaton. EAS, Page: All. CER Filing ID C03931 (Spread 7), EAS, Page: All.

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3925 Environment NEB Trans Mountain commits to updatng the Environmental Alignment Sheets to accurately identfy the NEB Cond IR No. Prior to Constructon Complete Commitment addressed by Conditon 72, CER Filing ID C00470 (Spread 1), EAS Notes, Page: 2. CER locaton and ranges of the sites classifed as having moderate and high risk of encountering 40.13 Filing ID C00475 (Spread 2), EAS, Page: All. CER Filing ID C05272 (Spread 3/4a), EAS, Page: All. CER contaminaton. Filing ID C03930 (Spread 4b), EAS, Page: All. CER Filing ID C04634 (Spread 5a), EAS, Page: All. CER Filing ID C05600 (Spread 5b), EAS, Page: All. CER Filing ID C03931 (Spread 7), EAS, Page: All. 3926 Environment NEB Trans Mountain commits to updatng the Environmental Alignment Sheets to clearly identfy the NEB Cond IR No. Prior to Constructon Complete Commitment addressed by Conditon 72, CER Filing ID C03931 (Spread 7), RSMT, Secton 8.3, Page: various contaminated sites located within the Coquitlam High Risk Area, and the areas where there 40.14 43, EAS, Page: BC-019 to BC-022. is a risk for encountering asbestos or asbestos containing materials. 3927 Environment NEB Trans Mountain commits to updatng the Groundwater Management Plan to clarify that NEB Cond IR No. Prior to Constructon Complete CER Conditon 72, CER Filing ID C01961, Pipeline EPP, Secton 4.2 in Appendix G, Page: G-70. contaminaton issues are not restricted to potentally contaminated shallow aquifers, rather 40.15 contaminaton issues refer to the potental to encounter any contaminaton; and to clarify that sites with moderate or high risk of encountering contaminaton are listed in Conditon 46. 3928 Environment NEB Trans Mountain commits to updatng the Wildlife Species of Concern Discovery and Encounter NEB Cond IR No. Prior to Constructon Complete CER Conditon 72, CER Filing ID C08263, Burnaby Mountain Tunnel EPP, Secton 6.0 in Appendix B, Contngency Plan with the following: “Upon discovery of a wildlife species of concern or habitat 40.16 Page: B-17. feature during constructon, the following will occur.” 3930 Environment NEB Trans Mountain commits to updatng Secton 8.0 of the Pipeline Environmental Protecton Plan (EPP) NEB Cond IR No. Prior to Constructon Complete CER Conditon 72, CER Filing ID C01961, Pipeline EPP, Secton 8.0, Page: 34. to include mitgaton measures under the “Species of Concern” heading in Secton 7.0. Trans 40.2 Mountain will update the Pipeline EPP with the following: “Refer to clearing and mowing mitgaton provided under the Wildlife heading, and the Species of Concern heading of Secton 7.0 of this EPP.” 3931 Environment NEB Trans Mountain commits to updatng the Environmental Protecton Plan (EPP) to include reference NEB Cond IR No. Prior to Constructon Complete CER Conditon 72, CER Filing ID C01961, Pipeline EPP, Secton 13.3, Page: 74. to habitat restoraton measures proposed by Trans Mountain for wildlife and wildlife species at risk 40.3 included in the Resource-specifc Mitgaton Tables, the Reclamaton Management Plan, and specifc Wildlife Species at Risk Mitgaton and Habitat Restoraton Plans. 3932 Environment NEB Trans Mountain commits to updatng the Reclamaton Management Plan to include reclamaton NEB Cond IR No. Prior to Constructon Complete Conditon 72, CER Filing ID A86570, Conditon 72 Reclamaton Management Plan, Appendix D, E, G, measures for American badger and to include soil compacton mitgaton within critcal habitat for 40.4 Page: 21 (Appendix D), 41 (Appendix E), 20 (Appendix G). each of American Badger and Townsend’s mole. Reclamaton measures will be added to Appendices D, E and G, and will be consistent with the soil compacton mitgaton included in Sectons 12 and 13 of the Pipeline EPP and the restoraton measures specifed in the American Badger Mitgaton and Habitat Restoraton Plan and the Townsend’s Mole Mitgaton and Habitat Restoraton Plan (NEB Conditon 44). 3933 Environment NEB Trans Mountain commits to updatng the Pipeline Environmental Protecton Plan to include NEB Cond IR No. Prior to Constructon Complete CER Conditon 72, CER Filing ID C01961, Pipeline EPP, Secton 7.0, Page: 21. mitgaton measures to reduce impacts of Project actvites disturbing contaminaton on or around 40.5 plant gathering sites (mitgaton measures identfed in the response to this IR). 3934 Environment NEB Trans Mountain commits to adding the mitgaton described in a) of the IR response to the Fish NEB Cond IR No. Prior to Constructon Complete CER Conditon 72, CER Filing ID C01961, Pipeline EPP, Secton 5.0 in Appendix B, Page: B-15. Species of Concern Contngency Plan, Secton 5.0 of Appendix B in the Pipeline Environmental 40.8 Protecton Plan. 3935 Environment NEB Trans Mountain commits to updatng the Water Quality Management Plan included in the Pipeline NEB Cond IR No. Prior to Constructon Complete CER Conditon 72, CER Filing ID C01961, Pipeline EPP, Secton 8.2 in Appendix G, Page: G-148. Environmental Protecton Plan with the fow diagram to outline the ratonale for implementng 40.9 water quality monitoring (i.e., Figure 15.5-1 of NEB IR No. 15 Response). 3936 Environment NEB Trans Mountain commits to updatng the relevant environmental protecton plans (EPPs) as NEB Cond IR No. Prior to Constructon Superseded by NEB 41 Commitment addressed by CER Conditon 41, CER Filing ID A90909, Conditon 41, Wetland Survey warranted to include any new or changed mitgaton measures included in Conditon 41 - Wetland 41.1 Conditon and Mitgaton Plan, Secton 5.5, Page: 33 to 34. Survey and Mitgaton Plan Rev 2.0. 3937 Environment NEB Trans Mountain commits to completng the same wetland assessments method as described in NEB Cond IR No. During Constructon Superseded by NEB 41 Commitment addressed by CER Conditon 41 , CER Filing ID A90909, Conditon 41, Wetland Survey Secton 3.5 of the Wetland Survey and Mitgaton Plan if new unknown wetlands are encountered. A 41.2-1a Conditon and Mitgaton Plan, Secton 4.4.2.1, Page: 15. Wetland Ecologist will complete the assessment. 3938 Environment NEB Trans Mountain plans to initate development of the wildlife monitoring program during the early NEB Cond IR No. During Constructon Superseded by NEB 41 The Matsqui First Naton Commitments Table was delivered to Matsqui on June 1, 2017 via email. stages of the Project constructon phase. Trans Mountain commits to fling the wildlife Post 41.2-1d Conditon Constructon Environmental Monitoring (PCEM) methods in accordance with NEB Conditon 151. Baseline data collected for the Project between 2013 and 2017, and any supplemental data collected prior to or during constructon, will form the basis of the wildlife monitoring. 3939 Environment NEB Trans Mountain commits to making a sufcient efort to obtain and access the necessary wetland NEB Cond IR No. During Constructon Superseded by NEB 41 Commitment addressed by CER Conditon 41, CER Filing ID A90909, Conditon 41, Wetland Survey crossing materials and equipment on-site. 41.2-6b Conditon and Mitgaton Plan, Secton 5.4 (Table 16), Page: 32. 3940 Environment NEB Trans Mountain commits to pursuing opportunites to implement the wetland functon NEB Cond IR No. During Constructon Superseded by NEB 41 Commitment addressed by CER Conditon 41, CER Filing ID A90909, Conditon 41, Wetland Survey enhancement measures (outlined in Secton 5.7 of the Plan) of the Project Footprint during the 41.3a Conditon and Mitgaton Plan, Secton 5.7, Page: 36 to 37. constructon phase of the Project, where feasible, to address temporary loss of wetland functon as early as possible. 3941 Environment NEB Where opportunites exist, Trans Mountain commits to endeavouring to utlize natural materials NEB Cond IR No. During Constructon Superseded by NEB 41 Commitment addressed by CER Conditon 41, CER Filing ID A90909, Conditon 41, Wetland Survey from the Project Footprint to enhance suitable locatons of Project Footprint, within the same 41.3a Conditon and Mitgaton Plan, Secton 2.3.1 of Appendix E (Preliminary Wetland Ofset Plan) Page: 14. wetland. 3942 Environment NEB Trans Mountain commits to maintaining ofsets, where warranted, to ensure that ofsets for loss of NEB Cond IR No. During Constructon Superseded by NEB 41 Commitment addressed by CER Conditon 41, CER Filing ID A90909, Conditon 41, Wetland Survey wetland functon are efectve for at least the duraton of the functonal loss caused by the Project. 41.3b Conditon and Mitgaton Plan, Secton 2.3.1 of Appendix E (Preliminary Wetland Ofset Plan), Page: 15.

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3943 Environment NEB In situatons where the selected ofsets are in the form of in-lieu funding for a third-party NEB Cond IR No. During Constructon Superseded by NEB 41 Commitment addressed by CER Conditon 41, CER Filing ID A90909, Conditon 41, Wetland Survey organizaton to implement wetland restoraton/enhancement or protecton, Trans Mountain 41.3b Conditon and Mitgaton Plan, Secton 2.3.1 of Appendix E (Preliminary Wetland Ofset Plan), Page: 15. commits to ensuring that funding is included for the necessary maintenance and monitoring, in line with the approach outlined in this IR response. 3945 Environment NEB Trans Mountain commits to updatng the NEB on any feedback received on the Environmental and NEB Cond IR No. During Constructon Complete Conditon 96, CER Filing ID A92639, Reports on Engagement with Aboriginal Groups - Constructon, socio-economic assessment - s.58 temporary constructon lands and infrastructure (Conditon 60) in 42.2 Appendix A. an addendum to Conditon 60, if required. 3946 Environment NEB Trans Mountain commits to completng vegetaton surveys prior to constructon where the NEB Cond IR No. Prior to Constructon Complete Vegetaton surveys completed at Valemount Camp/Stockpile/Ofce /Yard (VAL026.1), Blue River recommendaton has been provided in the June 2017 fling of Conditon 60, and additonal 42.4 Camp (BLU007), Kamloops Camp (KAM012), Merrit Camp (MER015) on August 24 to 27, 2018. mitgaton measures will be implemented as warranted. Vegetaton surveys were completed at Valemount (VAL028) on June 18, 2019, and Blue River Camp on September 9, 2018. Grasslands Surveys at Chuter Ranch (MER015) were completed May 13 to 16, 2019. 3947 Environment NEB Trans Mountain commits to submitng an updated table that considers the likelihood of NEB Cond IR No. Prior to Constructon Complete Conditon 60, CER Filing IS A85798, Conditon 60 Environmental and Socio-Economic Assessment, encountering contaminaton and the associated risk, as well as any additonal mitgaton to reduce 42.5 Secton 4.15, Page: 4-24 to 4-25. the potental efects of disturbing the contaminaton during Project actvites, in September 2017. This table will include the ranking of temporary sites by risk category. 3948 Environment NEB In order to reduce the potental efects of disturbing contaminated soils during project actvites, NEB Cond IR No. Prior to Constructon Complete The contractor confrms that the Phase 1 Liability Assessments for Temporary Constructon Lands Trans Mountain commits to providing contractors with a site plan showing areas of potental 42.5 and Infrastructure Sites have been received. concern for high and moderate risk sites for the applicable temporary work spaces in Spreads 1 and 2. 3949 Environment NEB Trans Mountain commits to updatng the relevant Environmental Protecton Plans (EPP) with any NEB Cond IR No. Prior to Constructon Superseded by NEB 60 Commitment addressed by CER Conditon 60(f). Proof of confrmaton is included in Conditon 78 new mitgaton or restoraton measures as required, including the Conditon 71 Riparian Habitat 42.6 Conditon Temporary Constructon Lands and Infrastructure EPP, CER Filing ID C05815, Secton 1.0, Page: 1. Management Plan. 3950 Environment NEB Trans Mountain commits to incorporatng all commitments made in the responses to NEB Conditon NEB Cond IR No. Prior to Constructon Complete Conditon 46, Contaminaton Identfcaton and Assessment Plan, CER Filing ID A84813, Response to IR No. 20, including the commitments made in references i) and ii) of that response, as well as any 45.3 IR No. 20 CER Filing ID A90938, Response to IR No. 45. Updated plans incorporate the changes new commitments made in the response to this IR, into the Commitments Tracking Table, pursuant requested in IR No. 20 and IR No. 45. to Conditon 6. 3951 Environment NEB Trans Mountain commits to following the NEB Remediaton Process Guide in the instance the NEB Cond IR No. During Constructon Superseded by NEB 46 Commitment addressed by CER Conditon 46, CER Filing ID C01961, Conditon 72 Pipeline EPP, contaminaton is atributable to their constructon actvites or a discovery of historical Trans 20.1.6 Conditon Secton 3.2 in Appendix G of the Pipeline EPP (Contaminaton Identfcaton and Assessment Plan), Mountain contaminaton. Secton 3.2.2.2, Page: G-56. 3953 Environment NEB Trans Mountain commits to ensuring that all relevant informaton from the revised Contaminaton NEB Cond IR No. Prior to Constructon Superseded by NEB 46 Commitment addressed by CER Conditon 46, CER Filing ID A90938, Conditon 46 Contaminaton Identfcaton and Assessment Plan (Conditon 46) will be incorporated into the Project 45.2 Conditon Identfcaton and Assessment Plan, Secton 1.0, Page: 1. Environmental Protecton Plans. 3954 Environment NEB Trans Mountain commits to including a summary of the assessments of the temporary constructon NEB Cond IR No. Prior to Constructon Complete Conditon 60, CER Filing ID A85227, Conditon 60 Environmental and Socio-Economic Assessment, lands and infrastructure once completed, in NEB Conditon Plan 60. 45.4 Secton 4.15.3 (Table 8), Page: 4-26 to 4-30. 3955 Environment NEB Trans Mountain commits to reportng to the Board contaminaton that is encountered during NEB Cond IR No. During Constructon Superseded by NEB 46 Commitment addressed by CER Conditon 46, CER Filing ID C01961, Conditon 72 Pipeline EPP, constructon, regardless of the source. 45.5 Conditon Secton 3.2 in Appendix G of the Pipeline EPP (Contaminaton Identfcaton and Assessment Plan), Secton 3.2.2.2, Page: G-56. 3956 Environment NEB Trans Mountain commits to notfying water well owners if contaminaton is discovered during NEB Cond IR No. During Constructon Superseded by NEB 46 Commitment addressed by CER Conditon 46, CER Filing ID C01961, Conditon 72 Pipeline EPP, constructon within 150 m of a water well identfed in Conditon 93. 45.5 Conditon Secton 3.2 in Appendix G of the Pipeline EPP (Contaminaton Identfcaton and Assessment Plan), Secton 3.2.2.2, Page: G-56. 3957 Environment NEB Trans Mountain commits to updatng the Contaminaton Identfcaton and Assessment Plan NEB Cond IR No. During Constructon Scoping Proof of completon would be the updated CIAP, if required. (Conditon 46) should any exemptons be obtained. 45.7 3958 Environment NEB Trans Mountain commits to disseminatng to the appropriate Project personnel and contractors any NEB Cond IR No. During Constructon Scoping Proof of completon would be the updated Contaminaton Identfcaton and Assessment Plan updates to the Contaminaton Identfcaton and Assessment Plan (Conditon 46) that result from an 45.7 (CIAP), if required. exempton. 3959 Environment NEB Trans Mountain commits to incorporatng locatons where there is a higher likelihood of NEB Cond IR No. Prior to Constructon Complete Conditon 46, Contaminaton Identfcaton and Assessment Plan, CER Filing ID A90938, Table 3 and encountering contaminated groundwater into Tables 3 and 4 of the Contaminaton Identfcaton and 45.8 Table 4, Page: 11 to 13, 14 to 15. Assessment Plan (Conditon 46) as applicable. 3961 Environment NEB Trans Mountain commits to updatng the relevant Environmental Protecton Plan(s) based on any NEB Cond IR No. Prior to Constructon Superseded by NEB 97 Commitment addressed by CER Conditon 97e. Proof of completon in CER Conditon 72, 78, 81 additonal feedback received on the Traditonal Land Use and Traditonal Marine Resource Use 46.3 Conditon RSMTs, EAS, Facility Drawings. Conditon 72 EAS/RSMT Secton 3.0, CER Filing ID C00470, Spread 1, Investgaton Report (Conditon 97). Page: 7, CER Filing ID C00475, Spread 2, Page: 8, Filing ID C05272, Spread 3/4a, Page: 7, Filing ID C03930, Spread 4b, Page: 6, CER Filing ID C04634, Spread 5a: Page 10, CER Filing ID C05600, Spread 5b: Page 7 to 9, Spread 6: Not yet fled with updated data, CER Filing ID C03931, Spread 7: Page 8, Conditon 78 Facilites EPP, CER Filing ID C06991, Appendix D and E, Page: D-1 to D-9, Figure EFD-1 to EFD-16. Conditon 78 Temporary Lands and Infrastructure EPP, Filing ID C05815, Appendix D and E: Page: D-1 to D-9, Figure 1 to 25. Conditon 81 Westridge Marine Terminal EPP, Filing ID C08265, Appendix D and E, Page: D-1 and Figure EFD-17. 3963 Environment NEB Trans Mountain commits to using functonal score in year 1 and not functonal category, similar to NEB Cond IR No. During Operatons Superseded by NEB 41 Commitment addressed in CER Conditon 41, CER Filing ID A90909, Conditon 41 Wetland Survey years 3 and 5, of post-constructon environmental monitoring (PCEM), to determine the need for 50.1a Conditon and Mitgaton Plan, Secton 2.2.1 of Appendix E (Preliminary Wetland Ofset Plan), Page: 7 to 8. ofsets for temporary loss of wetland functons due to Project constructon where the Federal Policy on Wetland Conservaton (FPWC) applies.

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3964 Environment NEB Trans Mountain commits to updatng the relevant environmental protecton plans (EPPs) as NEB Cond IR No. Prior to Constructon Superseded by NEB 41 Commitment addressed by CER Conditon 41, CER Filing ID A90909, Conditon 41, Wetland Survey necessary to refect the changes in response to NEB Conditon IR No. 50.1(a). 50.1b Conditon and Mitgaton Plan, Executve Summary, Page: iv. 3967 Environment NEB Trans Mountain commits to advising the Canadian Hydrographic Service (CHS) and Vancouver Fraser NEB Cond IR No. During Constructon Superseded by NEB 48 Commitment is addressed by CER Conditon 48, CER Filing ID A90948, Conditon 48, Navigaton and Port Authority (VFPA) of the locatons of the marine fsheries habitat ofset area once complete, for 9.4c Conditon Navigaton Safety Plan, Secton 4.0, 5.0, Page: 12, 14. inclusion to the applicable navigaton charts as determined by the CHS. 3973 Environment NEB Trans Mountain commits to contnuing to update and execute components of the Marine Public NEB Cond IR No. 9.6 Prior to Operatons Superseded by NEB 48 Commitment is addressed by CER Conditon 48, CER Filing ID A90948, Conditon 48, Navigaton and Outreach Plan annually, and fling the results of the outreach eforts as part of the Conditon 131 Conditon Navigaton Safety Plan, Appendix C, Page: C-2. fling with the NEB, antcipated in 2019. 3976 Environment NEB Trans Mountain commits to conductng in-water impact pile driving at the Westridge Marine NEB Cond IR No. During Constructon Superseded by NEB 81 Commitment addressed by CER Conditon 81, CER Filing ID C08265, Conditon 81 Westridge Marine Terminal (WMT) during daylight hours only. 25.7a Conditon Terminal EPP, Secton 8.0, Page: 8-3. 3977 Environment NEB Trans Mountain commits to the Environmental Inspector arranging for in situ sampling of turbidity NEB Cond IR No. During Constructon Superseded by NEB 81 Commitment addressed by CER Conditon 81, CER Filing ID C08265, Conditon 81 Westridge Marine (nephelometric turbidity units), should visual monitoring during in-water pile installaton at the 25.7c Conditon Terminal EPP, Secton 8.0, Page: 8-4. Westridge Marine Terminal (WMT) indicate concern regarding turbidity levels. 3978 Environment NEB Trans Mountain commits to developing an appropriate site-specifc health and safety plan to address NEB Cond IR No. Prior to Constructon Superseded by NEB 72 CER Filing ID C08975, Conditon 46 Site-Specifc Management Plan – Coquitlam Industrial Area, worker and public protecton when working in and around the landfll and exposure to solid waste, 1.19c Conditon Secton 8.0, Page: 33. landfll gas and leachate and associated contaminants of concern, at the Former Fraser Mills site and Coquitlam Landfll. Site-specifc plans will be fled with NEB 2 months prior to constructon in the area of the high risk site. 4003 Environment NEB Trans Mountain will engage a qualifed arborist to develop a Tree Plan specifc to municipal lands NEB IR No. 6.12 Prior to Constructon Complete Tree Management Plans were prepared and submited to municipalites on August 10, 2018 for directly impacted by the pipeline constructon, in Spread 2. Trans Mountain will ensure this plan will Edson, Parkland County, Spruce Grove, Stony Plain and Wabamun. identfy the species and number of trees to be removed from the constructon right-of-way. Trans Mountain will ensure it will be provided to the City or Municipality, and will be used to develop details of the Reclamaton Plan in consultaton with the City and landowners. 4004 Environment NEB Trans Mountain will engage a qualifed arborist to develop a Tree Plan specifc to municipal lands NEB IR No. 6.12 Prior to Constructon Complete Tree Management Plan (KP 42 – 43) pt. NE¼ Sec. 19, Twp. 52, Rge. 25, W4M Guardian Road NW and directly impacted by the pipeline constructon, in Spread 1. Trans Mountain will ensure this plan will Whitemud Drive NW (City of Edmonton) was prepared in July 2020. identfy the species and number of trees to be removed from the constructon right-of-way. Trans Mountain will ensure it will be provided to the City or Municipality, and will be used to develop details of the Reclamaton Plan in consultaton with the City and landowners. 4005 Environment NEB Trans Mountain will engage a qualifed arborist to develop a Tree Plan specifc to municipal lands NEB IR No. 6.12 Prior to Constructon In Progress Proof of completon will be the completed tree management plan as approved by the municipality. directly impacted by the pipeline constructon, in Spread 6. Trans Mountain will ensure this plan will identfy the species and number of trees to be removed from the constructon right-of-way. Trans Mountain will ensure it will be provided to the City or Municipality, and will be used to develop details of the Reclamaton Plan in consultaton with the City and landowners. 4015 Environment NEB Trans Mountain commits to completng additonal weed surveys in Lac du Bois Grasslands Protected NEB Cond IR No. Prior to Constructon Complete Weed surveys were complete in Lac Du Bois Grasslands Protected Area. Informaton for weed Area. 33.1 surveys has been combined into a shapefle, and has been added into the weeds database. 4016 Environment NEB Trans Mountain commits to entering Project weed survey data in the BC Invasive Alien Plant NEB Cond IR No. Project Lifecycle Superseded by NEB 45 Commitment addressed by CER Conditon 45, CER Filing ID A86546, Conditon 45 Weed and Program (IAPP) weed survey database on or before December 31st of each survey year. 33.1 Conditon Vegetaton Management Plan, Secton 4.1, Page: 14. 4017 Environment NEB Trans Mountain commits to restrictng herbicide use on Ministry of Transportaton and Infrastructure NEB Cond IR No. Project Lifecycle Superseded by NEB 45 Commitment is addressed by CER Conditon 45, CER Filing ID A86546, Conditon 45 Weed and lands to invasive plant management only. 33.1 Conditon Vegetaton Management Plan, Secton 1.4, Page: 6. 4018 Environment NEB Trans Mountain commits to conductng treatments in accordance with the relevant regional Mult- NEB Cond IR No. Project Lifecycle In Progress Commitment is in progress. Measures are addressed by the Trans Mountain Integrated Vegetaton Agency Pest Management Plan for Crown land. 33.1 Management Plan, which has been reviewed and approved by BC EAO. This plan meets or exceeds MoTI requirements where outlined in the Best Management Practces guidance. The 2021 revised IVMP will include a reference to the MoTI BMPs. 4019 Environment NEB Trans Mountain commits to entering all treatment work conducted on Ministry of Transportaton NEB Cond IR No. Project Lifecycle Superseded by NEB 45 Commitment addressed by CER Conditon 45, CER Filing ID A86546, Conditon 45 Weed and and Infrastructure lands in the BC IAPP treatment database on or before December 15th of each 33.1 Conditon Vegetaton Management Plan, Secton 4.1, Page: 14. year treatments are completed. 4020 Environment NEB Trans Mountain commits to updatng the Wildlife Confict Management Plan (Secton 6.5 of Volume NEB Cond IR No. Prior to Constructon Complete Conditon 72, Wildlife Confict Management Plan, CER Filing ID A90966, Appendix D, Page: D-1. 6 of the Environmental Plans) prior to constructon, with the contact informaton as identfed in the 33.1 IR response (i.e., Grizzly Bear Sightngs Hotline). 4026 Environment Stk'emlupsemc Te Trans Mountain commits to working with Indigenous groups to identfy the most appropriate means Joint Project Lifecycle In Progress Proof of completon would be the engagement logs should ofsetng be required to ofset HADD. Secwepemc of ofsetng serious harm to fsh and fsh habitat where required by Fisheries and Oceans Canada Federal/Provincial (DFO) Authorizaton. Consultaton and Accommodaton Report for Trans Mountain Expansion Project - May 2019, Appendix Stk’emlupsemc te Secwepemc Naton (SSN) 4490 Environment NEB Trans Mountain commits to monitoring the spawning deterrents at each of the sites where installed, NEB Cond IR No. During Constructon In Progress Proof of completon would be the report prepared by the resource specialist. to ensure that the deterrents do not shif during open water fows (Spread 3). 15.1b

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4491 Environment NEB Trans Mountain commits to monitoring the spawning deterrents at each of the sites where installed, NEB Cond IR No. During Constructon In Progress Proof of completon would be the report prepared by the resource specialist. to ensure that the deterrents do not shif during open water fows (Spread 5B) 15.1b 4492 Environment NEB Trans Mountain commits to monitoring the spawning deterrents at each of the sites where installed, NEB Cond IR No. During Constructon In Progress Proof of completon would be the report prepared by the resource specialist. to ensure that the deterrents do not shif during open water fows (Spread 6). 15.1b 4496 Environment Landowner - Litle Fort Trans Mountain commits to working with Litle Fort Herefords to develop a comprehensive and Transcript Volume 1 During Constructon In Progress Proof of completon is the engagement logs, and mitgaton/restoraton plans developed for Litle Herefords detailed plan to address the restoraton seeding requirements for the lands, but also all aspects of (para 839), A91423 Fort Herefords. mitgatng concerns of Litle Fort Herefords specifc to access, irrigaton and constructon reclamaton. 4500 Environment Landowner - Nestlé Waters Trans Mountain commits to working closely with the Landowner on the design and executon of Trans Mountain Project Lifecycle In Progress Proof of completon will be the Approved Plan, and monitoring results. Canada Inc. water quality monitoring at the aquifer access point. However, in the event that potental efects Pipeline ULC – may occur, Trans Mountain has developed mitgaton measures to reduce the potental efects of Detailed Route pipeline constructon on groundwater indicators. Writen Evidence (para 29) – Nestle Waters Canada (A6A9D1) 4515 Environment NEB Trans Mountain commits to monitoring the efectveness of spawning deterrents within spread 2 to NEB Cond IR No. During Constructon In Progress Proof of completon will be the resource specialist report. confrm success. 15.1b 4516 Environment NEB Trans Mountain commits to monitoring the efectveness of spawning deterrents within spread 3 to NEB Cond IR No. During Constructon In Progress Proof of completon will be the resource specialist report. confrm success. 15.1b 4519 Environment Simpcw First Naton Aboriginal monitors will be invited to atend kick-of meetngs (Spread 4A). SIMPCW F N IR No. Prior to Constructon In Progress Proof of completon will be the atendance records for the kick-of meetngs. 1.149a 4520 Environment NEB Trans Mountain commits to monitoring the efectveness of spawning deterrents within spread 5B to NEB Cond IR No. During Constructon In Progress Proof of completon will be the resource specialist report. confrm success. 15.1b 4521 Environment Landowner - Hugh David Trans Mountain commits to clearing woody vegetaton only to the extent required to safely Detailed Route During Constructon Superseded by NEB 72 Commitment addressed by CER Conditon 72, CER Filing ID C01961, Conditon 72 Pipeline EPP, Gray, Barbara Ann Gray construct the TMEP to reduce the loss of forest values and limit the potental for terrain instability Hearing, Writen Conditon Secton 8.0, Page: 37. and erosion. Evidence pg. 23 4525 Environment Landowner - Hugh David Trans Mountain commits to adhering to the reclamaton measures included in the Site-Specifc Detailed Route Prior to Operatons Superseded by NEB 72 Commitment addressed by CER Conditon 72, CER Filing ID C01961, Conditon 72 Pipeline EPP, Gray, Barbara Ann Gray Reclamaton Plan. If a reasonable soluton between the partes cannot be reached, Trans Mountain Hearing, CER IR No. Conditon Secton 8.0, Page: 37. will follow the reclamaton procedures prescribed in the Pipeline EPP and the Reclamaton 1.3 Management Plan atached as Appendix H to the Pipeline EPP. 4527 Environment Landowner - Hugh David In relaton to the walking path, Trans Mountain commits to establishing understory vegetaton Detailed Route Prior to Operatons In Progress Proof of completon will be in the As-Built Report. Gray, Barbara Ann Gray (natve shrubs) of the same species that are presently found on the Lands. Trans Mountain will Hearing, CER IR No provide a vegetatve bufer along the south side of the walking path to ensure visual screening to the 1.3 neighboring lands south of the Lands. 4530 Environment Landowner - Robin Scory Trans Mountain commits to implementng mitgaton measures to protect water quality and quantty Detailed Route During Constructon Superseded by NEB 43, 72 Commitment addressed in CER Conditon 43 and 72, Conditon 43, CER Filing ID C00815, Conditon at watercourse crossings, including Turkey Brook Creek. A detailed list of mitgaton measures for Hearing, Writen Conditon 43 Watercourse Crossing Inventory, Appendix B, Page: B-64 Conditon 72, CER Filing ID C01961, watercourse crossings is provided at Secton 14 of the Pipeline EPP (“Water Crossings”). Evidence (para 36) Conditon 72 Pipeline EPP, Secton 14.0, Page: 75 to 87. 4531 Environment Landowner - Robin Scory Trans Mountain commits to using bio-degradable hydraulic oil for equipment performing instream Detailed Route During Constructon Superseded by NEB 72 Commitment addressed by CER Conditon 72, CER Filing ID C01961, Conditon 72 Pipeline EPP, constructon. Hearing, Writen Conditon Secton 14.1, Page: 78. Evidence (para 52) 4532 Environment Kwikwetlem First Naton Trans Mountain will contnue to meet with the Kwikwetlem Indigenous Monitor to address issues Joint During Constructon Superseded by NEB 98 Commitment addressed by CER Conditon 98, CER Filing ID C00105, Conditon 98 Plan for that may arise with the intent of seeking contnuous improvement and best practces in the working Federal/Provincial Conditon Indigenous Group Partcipaton in Constructon Monitoring, Secton 4.5.2, Page: 14. Trans Mountain relatonship, and the Trans Mountain Indigenous Monitoring Program. Consultaton and has a Communicatons Protocol in place with Kwikwetlem First Naton (KFN) as part of their Accommodaton mutually-agreed IM Agreement which commits to joint meetngs with KFN IM, KFN and Trans Report for Trans Mountain as requested by the KFN IM. Mountain Expansion Project - May 2019, Appendix Kwikwetlem First Naton 4533 Environment Landowner - Robin Scory In the event it is required, Trans Mountain commits to conductng further onsite investgaton and Detailed Route Prior to Constructon Scoping Proof of completon would be the results of the investgaton, if this is required or ratonale if an implement additonal buoyancy control measures such as geotextle bag weights or screw anchors. Hearing, CER investgaton is not required. Decision, pg. 8 4543 Environment Landowner - Redwoods Golf Trans Mountain commits to using minimal workspace for constructon within the Golf Course. Soils Detailed Route During Constructon Scoping Proof of completon will be the As-Built Report. Course Ltd. (Redwoods) will be stockpiled of-site where possible to minimize required workspace. Access mats will be used Hearing, Writen on fairway areas to reduce topsoil disturbance, where possible. Evidence (para 26) 4544 Environment Landowner - Redwoods Golf Trans Mountain commits to fling a table of updated proposed cleaning staton locatons for Spread Detailed Route Prior to Constructon In Progress Proof of completon will be the Spread 7 cleaning statons submited to the CER. Course Ltd. (Redwoods) 7A prior to constructon, pursuant to Certfcate Conditon 72. Hearing, IR No. 2.15, pg. 13

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4545 Environment Landowner - Redwoods Golf Trans Mountain commits to adding a Level 1 cleaning staton at the entrance to the Lands for all Detailed Route During Constructon In Progress Proof of completon will be the cleaning logs at the Level 1 cleaning statons. Course Ltd. (Redwoods) topsoil handling equipment, which will involve the removal of soil and vegetatve debris using tools Hearing, IR No. 2.14, such as shovels, air chisels, brooms, wire brushes or scrapers. pg. 13 4549 Environment Landowner - Redwoods Golf Trans Mountain commits to having Environmental Inspectors in place during constructon to ensure Detailed Route During Constructon Scoping Proof of completon will be the EI reports or the As-Built Report. Course Ltd. (Redwoods) environmental protecton measures are implemented as needed and as commited to. Hearing, Writen Evidence (para 9) 4551 Environment Simpcw First Naton Aboriginal monitors will be invited to atend kick-of meetngs (Spread 4B). SIMPCW F N IR Prior to Constructon In Progress Proof of completon will be the atendance records for the kick-of meetngs. No.1.149a 4552 Environment Simpcw First Naton Aboriginal monitors will be invited to atend kick-of meetngs (Spread 5A). SIMPCW F N IR No. Prior to Constructon In Progress Proof of completon will be the atendance records for the kick-of meetngs. 1.149a 4557 Environment Sto:lo Collectve If clearing in Old Growth Management Areas (OGMAs) within the S’ólh Téméxw becomes an Sto:lo Collectve Prior to Constructon No Longer No OGMA are encountered in Spread 6. Conditon 72, CER Filing ID C03931, Spread 7 RSMT, Secton approved constructon requirement, Trans Mountain will discuss Sto:lo’s desire to salvage cedar with Recommendaton Applicable 5.2. the OGMA regulator and the terms for commercial harvest will be negotated (Spread 6). #29 92 Facilites Constructon Upper Nicola Band If additonal pit run material is required at Kingsvale Pump Staton, Trans Mountain will ask the Upper Nicola Band During Constructon Scoping contractor(s) undertaking the civil constructon work to fnd one or more borrow sources within a IR No. 2(c).01.a reasonable distance from the site. 489 Facilites Constructon NEB Trans Mountain will fle the exact fnal locatons (including the GPS coordinates) of the new Line 2 NEB IR No. 3.047 Prior to Constructon Complete Finalized staton locatons shown on drawings contained in the Facilites Environmental Protecton pump statons and Black Pines Pump Staton as a conditon of future Project approval, if such an Plan fled under Conditon 78 on September 5, 2017 (Filing ID A85826-6 startng at PDF Page 93). approval is granted or conditon issued. 494 Facilites Constructon City of Burnaby A permanent staton will be set up as part of the dock expansion and that will provide informaton to City Burnaby IR No. During Constructon In Progress the terminal operator, ship, pilots and others on wind conditons at the Westridge dock. 1.26.10c 2580 Facilites Constructon NEB Trans Mountain will ensure each pump staton site will have no less than one resident inspector, and Applicaton Volume During Constructon Scoping it is antcipated that there will be a combined constructon management and inspecton team of fve 4B s. 4.4.1 p4B-43 to ten staf for each group of three or four pump statons. 2582 Facilites Constructon NEB Trans Mountain will ensure the Sumas Terminal site will have no less than one resident inspector, Applicaton Volume During Constructon Scoping and it is antcipated that there will be a combined constructon management and inspecton team of 4B s. 4.4.1 p4B-43 fve to ten staf . 3966 Facilites Constructon NEB Trans Mountain commits to the constructon of the marine fsheries ofset work in the Burrard Inlet NEB Cond IR No. During Constructon Superseded by NEB 48 Reference Navigaton and Navigaton Safety Plan fled under Conditon 48 on March 29, 2018 (Filing occurring within the Westridge Marine Terminal Constructon Safety Boom. 9.4c Conditon ID A90948-3, PDF Pages 3-4 and 20-21). 3968 Facilites Constructon NEB Trans Mountain commits to placing day and night navigaton marks on the marine fsheries habitat NEB Cond IR No. During Constructon Superseded by NEB 48 Reference Navigaton and Navigaton Safety Plan fled under Conditon 48 on March 29, 2018 (Filing ofset area, as required by the Canadian Coast Guard (CCG) close to completon of constructon. 9.4c Conditon ID A90948-3, PDF Page 18, paragraph ll). 3971 Facilites Constructon NEB Trans Mountain commits to placing constructon warning signs every 80’ along the Safety Boom, NEB Cond IR No. 9.5 During Constructon Superseded by NEB 48 Reference Navigaton and Navigaton Safety Plan fled under Conditon 48 on March 29, 2018 (Filing with lights positoned by the warning signs, during constructon of Westridge Marine Terminal. Conditon ID A90948-3, PDF Page 17, paragraph ee). 3972 Facilites Constructon NEB Trans Mountain commits to placing on the shoreline, constructon 1.2 x 1.2 metre warning signs NEB Cond IR No. 9.5 During Constructon Superseded by NEB 48 Reference Navigaton and Navigaton Safety Plan fled under Conditon 48 on March 29, 2018 (Filing approximately 150 m on either side of the Westridge Marine Terminal property boundary. Conditon ID A90948-3, PDF Page 17, paragraph ee). 108 Facilites Engineering Burnaby Board of Trade Trans Mountain will ensure seismic design of storage tanks, including consideraton of sloshing and P-IR No. 1.02.03.d Prior to Operatons Complete Trans Mountain identfed Annex E as being mandatory for all new TMEP tanks. This was other efects, is in accordance with the latest editon of the American Petroleum Insttute (API) communicated to design/build contractors through the contractng process, with design calculatons Standard 650, Welded Tanks for Oil Storage, Annex E, the recognized North American standard. required to be provided for review. Contractors are required to provide certfcates of completon atestng to API 650 compliance including in relaton to Annex E. 109 Facilites Engineering Burnaby Board of Trade Trans Mountain will ensure seismic design of storage tanks, including consideraton of sloshing and P-IR No. 1.02.03.d Prior to Constructon Complete Trans Mountain identfed Annex E as being mandatory for all new TMEP tanks. This was other efects, is in accordance with the latest editon of the American Petroleum Insttute (API) communicated to design/build contractors through the contractng process, with design calculatons Standard 650, Welded Tanks for Oil Storage, Annex E, the recognized North American standard. required to be provided for review. Contractors are required to provide certfcates of completon atestng to API 650 compliance including in relaton to Annex E. 140 Facilites Engineering City of Burnaby As part of the proposed expansion of Westridge Marine Terminal, the existng diesel-powered City Burnaby IR No. Prior to Operatons Complete Proof of completon: Westridge Marine Terminal Design Basis Memorandum, Secton 8.1 Electrical standby emergency generator will be replaced with one of an appropriate (larger) size. 1.25.03b Design Basis General and Secton 8.6 Emergency Generators. 142 Facilites Engineering City of Burnaby The design of the proposed standby emergency power systems and the fre water pumping systems City Burnaby IR No. Prior to Constructon Complete at Burnaby Terminal will include ensuring that the systems will operate within the legislatve 1.25.03d requirements for noise. The equipment will be installed in buildings designed to atenuate noise, as necessary. 145 Facilites Engineering City of Burnaby The weather threshold for remaining moored at the dock will be determined as part of the fnal dock City Burnaby IR No. Prior to Constructon Superseded by NEB 84 Commitment addressed by Filing ID: A83581, Conditon 84, Emergency Release System at Westridge design engineering. 1.26.10d, TERMPOL Conditon Marine Terminal, Secton 4.5.1.2, Page 12. 3.13 Secton 3 (Filing ID A3S4V0, PDF page 7) 162 Facilites Engineering Environment Canada Trans Mountain will use the best available fugitve volatle organic compounds (VOC) emissions GoC EC IR No. Prior to Constructon Superseded by NEB 53 Commitment addressed by Filing ID: A84416, Conditon 53, Fugitve Emissions Management Plan for reducton technology that is suitable for the applicaton at Westridge Marine Terminal, with the 1.065b Conditon Westridge Marine Terminal, Secton 5. primary goals of reducing fugitve VOC emissions and odorous emissions from vessel loading to the greatest extent practcal.

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163 Facilites Engineering Environment Canada Trans Mountain will use the most applicable short term and long-term meteorological data, GoC EC IR No. 1.011 Prior to Constructon Superseded by NEB 52 Commitment addressed by Filing ID: A84415, Conditon 52, Air Emissions Management Plan for including wind extremes and the Environment Canada data, to inform the design of Westridge Conditon Westridge Marine Terminal, Secton 4.6. Marine Terminal. 167 Facilites Engineering Natural Resources Canada Trans Mountain will consider applicable topography and site efects (soil efects), including GoC NRCan IR No. Prior to Constructon Superseded by NEB 23, 24, 25 amplifcaton, in the design of tanks, tank foundatons, and containments systems. 1.02.06 Conditon 170 Facilites Engineering Sheilagh MacDonald The Burnaby Terminal fre-protecton system will be expanded and enhanced with new resources as MacDonald S IR No. Prior to Operatons Superseded by NEB 127 The fre protecton system for the expanded facilites at the Burnaby Terminal wil be addressed described in Secton 3.4.3.8.2 of Volume 4A. 1.4b, Volume 4A, Conditon under Conditon 127. Secton 3.4.3.8.2 (Filing ID A3S0Y8, PDF page 105) 191 Facilites Engineering Upper Nicola Band The mainline pumps and some piping systems will be housed within a pump building that includes Upper Nicola Band Prior to Constructon Complete Commitment addressed in IFC Control Philosophy Line 2 Facilites and MLBV dated September 18, secondary containment with hydrocarbon detecton. IR No. 1.04a 2018. 202 Facilites Engineering NEB Drawings showing the scope of the proposed storage tank removals at Burnaby Terminal (existng NEB IR No. 2.116a Prior to Constructon Complete Tank 74) will be prepared during the detailed engineering and design phase and during detailed constructon planning in 2015. 204 Facilites Engineering NEB For the proposed expansion at Edmonton Terminal, in the West Tank Area (WTA), Trans Mountain NEB IR No. 2.128b.1 Prior to Constructon Superseded by NEB 23 Trans Mountain fled a "design change" submission for the Edmonton Terminal on March 1, 2019 has commited to comply with the secondary containment capacity requirements of the Alberta Fire Conditon including with commentary on tank secondary containment (A81919), and then responded to a Code (AFC), which requires that the capacity of a shared containment area be 100% of the volume of series of NEB informaton requests (A83416, A83687, A92798, and A93335). In the last of those IR the largest tank plus 10% of the volume of the other tanks within the area. response submissions, and more specifcally in its response to IR 2,3, Trans Mountain spoke to the aspect of Alberta Fire code requirements for secondary containment in the Edmonton Terminal West Tank Area. In Conditon Compliance Leter Report No. 6 dated October 23, 2019 (C02386) the CER accepted Trans Mountain's submissions and granted approval under CPCN Conditon 23 (Secondary Containment - Edmonton Terminal). 205 Facilites Engineering NEB For the proposed expansion of Burnaby Terminal, Trans Mountain has commited to comply with the NEB IR No. 2.130b Prior to Constructon Superseded by NEB 24 The design of the secondary containment system for the Burnaby Terminal was fled and accepted secondary containment capacity requirements of the Britsh Columbia Fire Code (BCFC), which Conditon under Conditon 24 (Filing IDs A81945 and A92675). This included the aspect of conformance with requires that the capacity of a shared containment area be 100% of the volume of the largest tank the capacity provisions of the B.C. Fire Code. plus 10% of the volume of the other tanks within the area. For some tanks, secondary containment will be partally provided by remote impoundment, in accordance with the requirements of Natonal Fire Protecton Associaton (NFPA) Code 30. 210 Facilites Engineering NEB Trans Mountain has commited to adopt facility design and emission control measures that do not NEB IR No. 2.041b Prior to Constructon Superseded by NEB 52, 53, 54, 79 This commitment has been overtaken by the Fugitve Emissions Management Plans and the Air result in any additonal exceedances where air quality standards are predicted to be exceeded by Conditon Emissions Management Plans which had to be fled for these four terminal sites under Conditons existng developments and actvites in the case of air emissions. 52, 53, 54, and 79. All of these required submissions were fled by Trans Mountain and approved by the NEB. 211 Facilites Engineering NEB On the new line, all valves will be automated. The new line through Jasper that went in during the Part 2 – Public During Operatons Superseded by NEB 17 Commitment addressed by March 1, 2017 fling A81942, Conditon 17 (Valve Locatons on Line 2); Anchor Loop project is also automated. For the existng line, valves will be automated on a priority Consultaton Update Conditon valve automaton described throughout the document. NEB Leter Report 21 issued Aug 16, 2018 basis including valves near river crossings and sensitve areas. No. 1, Table 1.6-1 (A93587) indicated the requirements of C17 were met. 213 Facilites Engineering NEB Plans for constructng the proposed new storage tanks at Burnaby Terminal, without disturbing the NEB IR No. 2.119d Prior to Constructon Complete containment functon of existng berms or by providing temporary berms, will be developed during detailed constructon planning in 2015. 218 Facilites Engineering NEB Trans Mountain will apply industry best practces in the selecton of lightng types and fxtures at NEB IR No. 2.012a, Prior to Constructon Superseded by NEB 82 Commitment addressed by Filing ID: A83578, Conditon 82, Light Emissions Management Plan for Westridge Marine Terminal (WMT) that minimize extraneous light polluton, including the use of LED NEB IR No. 2.012b Conditon Westridge Marine Terminal, Secton 4.0. (light-emitng diode) technology. 221 Facilites Engineering NEB Trans Mountain will conduct a reliability, availability, and maintainability (RAM) analysis for Line 1 NEB IR No. 1.93f Prior to Constructon Complete and Line 2 during the detailed engineering and design phase to confrm or adjust the availability factors and sparing philosophy. It is expected that the RAM analysis will be complete by the end of Q1 2015. 222 Facilites Engineering NEB Trans Mountain will consider the need for installed or uninstalled (ready for quick installaton) spare NEB IR No. 2.122g Prior to Constructon Complete Commitment is complete - Proof of Completon - MOC 16874 Report. vapour recovery arms or alternate back-up connecton systems, such as portable hoses (similar to what is currently used at WMT), during the detailed engineering and design phase. 223 Facilites Engineering NEB Trans Mountain will contract with a frm specializing in control systems to integrate the new Applicaton Volume Prior to Constructon Superseded by NEB 116 This commitment has been overtaken by Conditon 116, which requires the fling of control system equipment into a control scheme for each facility. The control scheme will utlize existng approved 4B-45. Conditon block diagrams at least two months prior to the completon of dry commissioning actvites. control philosophies and practces, and will be developed under the supervision of Trans Mountain operatng staf. 225 Facilites Engineering NEB Trans Mountain will follow the recommendatons of the latest editon of American Petroleum NEB IR No. 2.075d Prior to Constructon Complete Insttute (API) Recommended Practce 2003, Protecton Against Ignitons Arising Out of Statc, Lightning and Stray Currents. Trans Mountain will also follow the requirements of the latest editon of Canadian Standards Associaton Canadian Electrical Code, C22.1, Safety Standard for Electrical Installatons. 232 Facilites Engineering NEB Trans Mountain will provide to the NEB the maximum inlet (sucton) pressures for the Line 2 pump NEB IR No. 1.94c Prior to Constructon Complete Commitment addressed in Line 2 Transient Study, Appendix E, April 28, 2017. statons following completon of the transient hydraulic analysis, expected by Q2 2015.

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237 Facilites Engineering NEB Where it is possible and / or desirable to avoid slack fow during pipeline shut down scenarios, NEB IR No. 2.090a During Operatons Superseded by NEB 135 Commitment will be addressed by Conditon 135 fling; C135 - Slack line fow conditons NOTE: mainline valves will be selectvely closed to maintain line pack. Conditon Conditon to be fled at least 2 months prior to commencing operaton of LIne 1, and at least 2 months prior to applying for leave to open LIne 2, respectvely. 238 Facilites Engineering NEB With respect to storm-water runof in the proposed Tank 100 and Tank 103 shared secondary NEB IR No. 2.129g During Constructon Superseded by NEB 25 The fnalized storm water drainage design was described in the Secondary Containment Report for containment at Sumas Terminal, Trans Mountain will provide a motor operated valve (MOV) on the Conditon the Sumas Terminal that was fled under Conditon 25 on July 29, 2020 (Filing ID C07595, A7H4K5, proposed new secondary containment drain system, in a safe locaton outside of the secondary Secton 5.1.5 at PDF Pages 14-15). As indicated, drainage from the new shared secondary containment berm. containment area will be through a normally closed motor operated valve and will gravity fow via enclosed pipe directly to the Tank 102 existng unmodifed secondary containment area. There are then sequental steps to take water to an existng site drainage point. The design also features a manual valve outside the secondary containment area that can be accessed and closed in case of need and emergency. 239 Facilites Engineering NEB With respect to the 3 tanks to be built at Westridge Terminal, all proposed tanks will be located NEB IR No. 2.125b.3 Prior to Constructon No Longer Trans Mountain is not building new tanks at Westridge Marine Terminal. within secondary containment designed in accordance with Canadian Standards Associaton (CSA) and 2.125b.4 Applicable Standard Z662 and the Natonal Fire Protecton Associaton (NFPA) Code 30. Trans Mountain will provide overfll protecton in accordance with American Petroleum Insttute (API) Standard 2350. All proposed tanks will be equipped with a radar gauging system for liquid level measurement and overfll protecton. 240 Facilites Engineering NEB With respect to the existng jet fuel unloading system at proposed Berth 1 at Westridge Marine NEB IR No. 2.131d Prior to Constructon Superseded by NEB 4 Proof of Completon: Engineering As-built Drawings following completon of constructon. Terminal (WMT), Trans Mountain will design and construct the replicated facilites using the same Conditon principles, standards, procedures, and practces that will be applied to the proposed new crude oil loading systems at WMT, thereby incorporatng some improvements over the existng jet fuel unloading arm system. 250 Facilites Engineering Britsh Columbia Hydro and Trans Mountain commits to working with BC Hydro to establish safe separaton distances from the BC Hydro IR No. Prior to Constructon Complete This commitment has been addressed through various flings made under Conditon 50. These Power Authority various power line circuits involved in the TMEP. 1.1.1.3 flings show that an AC Mitgaton Report has been produced to the NEB's satsfacton including with appropriate engagement between Trans Mountain and BC Hydro. CER Filing A5L0Q2 including at secton 2.3. 253 Facilites Engineering Britsh Columbia Hydro and Trans Mountain will consult with BC Hydro’s designated project manager during the Detailed BC Hydro IR No. Prior to Constructon Superseded by NEB 50 This commitment has been addressed through various flings made under Conditon 50. These Power Authority Engineering and Design Phase of the Project to identfy potental facility conficts and develop 1.2.1.1 Conditon flings show that an AC Mitgaton Report has been produced to the NEB's satsfacton including with reasonable mitgaton plans. If mitgaton requires BC Hydro to relocate facilites, Trans Mountain appropriate engagement between Trans Mountain and BC Hydro. CER Filing A5L0Q2 including at agrees to follow BC Hydro’s Transmission Line Relocaton Agreement (TLRA) process. secton 2.3. 257 Facilites Engineering Adams Lake Indian Band A management of change process will be followed ensuring changes to mitgaton measures are ALIB IR No. 1.6.02b Prior to Constructon Superseded by approved and communicated to appropriate project personnel and regulatory agencies as required. Management Plan 415 Facilites Engineering City of Burnaby A permanent staton will be set up as part of the dock expansion and that will provide informaton to City Burnaby IR No. Prior to Constructon Superseded by NEB 52 Commitment addressed by Filing ID; A84415, Conditon 52, Air Emissions Management Plan for the terminal operator, ship, pilots and others on wind conditons at the Westridge dock. 1.26.10c Conditon Westridge, Secton 3.3.9, Meteorological Sensors. 432 Facilites Engineering NEB All pump statons and terminals in the expanded TMPL system will include emergency shutdown Part 2 – Consultaton Prior to Constructon Superseded by NEB 115, 116 This commitment has been overtaken by Conditons 115 and 116, which require the fling of a (ESD) systems that will operate automatcally in some abnormal operatng conditons and can also Update No. 1, 2-44 Conditon SCADA and Leak Detecton Design and control system block diagrams. The emergency shutdown be actvated remotely from the Pipeline Control Centre (PCC) or locally by feld operatons. aspect is a required element of Conditon 115 at subparagraph (b)(ix) and Conditon 116 at paragraph (d). 468 Facilites Engineering NEB Trans Mountain commenced the process of gathering additonal volatle organic compound (VOC) NEB IR No. 3.019b Prior to Constructon Superseded by NEB 53 Commitment addressed by A84416, Conditon 53: Fugitve Emissions Management Plan for emissions informaton in 2014 and will conduct further measurements during tanker loadings at Conditon Westridge Marine Terminal, Secton 5.1.1. Proof of completon provided in April 8, 2020 Memo from Westridge Marine Terminal (WMT) in 2015. RWDI: "Comparison of VOC Emission Survey Results During Tanker Loading". 490 Facilites Engineering NEB Conceptual design for the Line 2 pressure control and pressure relief systems proposed for the Hope NEB IR No. 3.051a.2 Prior to Constructon Complete Commitment addressed in following documents: HAZOP: TMEP Pump Statons Surge Relief & Typical site has been completed and a piping and instrumentaton diagram (P&ID) will be prepared for MLBV HAZOP Report. PIDs: Piping and Instrumentaton Diagram - Pressure Control System - 2STP- Hazards and Operability (HazOp) review by Q3, 2015. The P&ID will be updated based on the HazOp 0001, 2RTP-0001 - Hope Line 2; Piping and Instrumentaton Diagram - Staton Surge Relief System - recommendatons and it is antcipated that the design basis will be completed by the end of Q3, Hope Line 2;Piping & Instrument Diagram Pump staton Area Delivery Manifold Relief System Hope 2015. Detail design is planned for 2016. Line 2; Piping & Instrument Diagram Pump staton Area Delivery Manifold Relief System Hope Line 2. 495 Facilites Engineering NEB Trans Mountain will provide updated pump staton single line diagrams as a conditon of future NEB IR No. 3.057b Prior to Constructon Superseded by NEB 30 Commitment will be addressed by Conditon 30 fling; C30 - Power system protecton for pump Project approval, if such an approval is granted or conditon issued. Conditon statons and terminals... d) Single line diagrams of the electrical power systems. Conditon to be fled at least 6 months prior to commencing constructon. 496 Facilites Engineering NEB The communicatons block diagram for the existng Trans Mountain pipeline system will be updated NEB IR No. 3.058b Prior to Constructon Superseded by NEB 116 Commitment will be addressed by Conditon 116 fling. C116 - Control System, SCADA, instruments, during the detailed engineering and design phase to include the new Black Pines Pump Staton site Conditon and communicaton. Conditon to be fled two months prior to completng dry commissioning and to refect the concept that back-up communicatons will be provided by satellite at Black Pines actvites. and at the existng pump staton sites where new pump statons are being added as part of the Project. 498 Facilites Engineering NEB Trans Mountain will fle a summary of the Hazards and Operability (HazOp) reviews and contngency NEB IR No. 3.071e Prior to Constructon Complete plans for Westridge Marine Terminal (WMT) as a conditon of future Project approval, if such an approval is granted or conditon issued. 499 Facilites Engineering NEB Trans Mountain will install odour control systems on all of the proposed new tanks at Burnaby NEB IR No. 3.082b Prior to Constructon Superseded by NEB 54 The fugitve emissions management plan for the Burnaby Terminal was fled and approved under Terminal. As such Trans Mountain will utlize internal foatng roofs on all of the proposed new tanks Conditon Conditon 54 (Filing IDs A83732 and A85838). Plan includes utlizaton of internal foatng roofs. at Burnaby Terminal, a confguraton which is required to enable the applicaton of odour control systems.

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500 Facilites Engineering NEB Trans Mountain will provide the updated design of Westridge Marine Terminal (WMT), with respect NEB IR No. 3.83b Prior to Constructon Complete The wind study found the maximum wind gusts at Westridge Terminal are less than Natonal to the wind data collected at WMT, as a conditon of future Project approval, should such approval Building Code of Canada wind design values for the Burnaby area and thus the NBCC values are be granted or conditon issued. used in the design. 504 Facilites Engineering NEB The under-tank leak detecton system proposed for each new storage tank at the Sumas Terminal NEB IR No. 3.093b, Prior to Constructon Superseded by NEB 115 will consist of perforated pipes which will drain to a sump adjacent to the tank. The leak detecton NEB IR No. 2.118c Conditon system design will be in accordance with API 650, Annex I. 539 Facilites Engineering Environment Canada Once the Process Design Basis for the emissions control system at Westridge Marine Terminal is GoC EC IR No. 2.071 Prior to Constructon Superseded by NEB 52 Commitment Addressed By: Filing ID: A84415, Conditon 52, Air Emissions Management Plan for fnalized, Trans Mountain is willing to provide the process guarantees directly to the NEB and Conditon Westridge Marine Terminal, June 2017 Update, Appendix F: Supplemental Air Quality Assessment Environment Canada (EC). Report. 556 Facilites Engineering Environment Canada Trans Mountain commits to implementng the following mitgaton measures at the Westridge GoC EC IR No. 2.050 Prior to Constructon Superseded by NEB 82 Commitment addressed by Filing ID: A83578, Conditon 82, Light Emissions Management Plan for Marine Terminal to reduce potental efects from artfcial lightng and prevent sky-lightng which Conditon Westridge Marine Terminal, Secton 4.0. may lead to bird disorientaton/collisions, where feasible, by using low level and low intensity lightng; using no lightng in areas where no work is planned; using downturned shaded fxtures in light standards; and using a higher lumen/wat (light out to power in) rato, such as metal halide lightng. 580 Facilites Engineering Upper Nicola Band Trans Mountain has developed a preliminary layout for the proposed new facilites at Kingsvale Upper Nicola Band Prior to Constructon Complete Commitment addressed in Civil Plans Layout Details - Kingsvale Line 2. Pump Staton, which generally defnes the extent of the excavaton required. The approximate IR No. 2(c).01.c volume is 10,000 m3. The fnal layout and associated excavaton quantty will be determined during detailed engineering and design, which is expected to take place during 2016, assuming the current overall Project schedule is maintained. 581 Facilites Engineering Upper Nicola Band Trans Mountain is commited to undertake a slope stability study for Kingsvale Pump Staton during Upper Nicola BandIR Prior to Constructon Complete Commitment addressed in Geotechnical Report Kingsvale Pump Staton Line 2 dated February 16, detailed engineering and design. No. 2(c).01.e 2017. 609 Facilites Engineering NEB Trans Mountain will voluntarily comply with the fre retardant design requirements of the Natonal NEB IR No. 4 27a During Constructon In Progress Fire Code of Canada and the Britsh Columbia Fire Code for the existng secondary containment areas at Sumas Terminal that will be modifed or used by the Project. 610 Facilites Engineering NEB Trans Mountain will install fre protecton systems on or nearby the proposed new tank at the Sumas NEB IR No. 4 29b Prior to Operatons Superseded by NEB 127 Terminal. Conditon 611 Facilites Engineering NEB Trans Mountain will focus eforts during detailed engineering, design, constructon, and NEB IR No. 4 29c Project Lifecycle Superseded by NEB 22 commissioning to prevent the alignment of conditons that could lead to a secondary containment Conditon pool fre event and the potental consequental efects at the Sumas Terminal. 613 Facilites Engineering City of Burnaby Trans Mountain is commited to evaluatng other optons for shoreline inflling and to minimizing the City Burnaby IR No. Prior to Constructon Superseded by NEB 35 Commitment addressed by Filing ID: A81712, Conditon 35, Leter confrming no dredging is volume of dredging required, to the extent feasible. 2.063a Conditon required for Westridge Marine Terminal expansion, page 2. 682 Facilites Engineering City of Port Moody A gas monitoring network will be installed for early detecton of any leaks or equipment City of Port Moody Prior to Constructon Superseded by NEB 53 Commitment addressed by Filing ID: A84416, Conditon 53, Fugitve Emissions Management Plan for malfuncton. The detecton equipment will be integrated with the Westridge Marine Terminal IR No. 2.3.31 Conditon Westridge Marine Terminal, Secton 6.0. control system to allow for contnuous measurement of the performance of the Vapour Combuston Unit (VCU) and Vapour Recovery Units (VRUs) to ensure that they are operatng efciently and efectvely. 703 Facilites Engineering Dorothy Doherty New instrumentaton for pressure and fow measurement for each of the delivery pipelines will be Doherty D IR No. Prior to Constructon Complete included in the designs of Burnaby Terminal. 2.1.m 705 Facilites Engineering Dorothy Doherty Trans Mountain has seismic monitoring instruments at Burnaby Terminal today and will add Doherty D IR No. Prior to Operatons In Progress additonal seismic monitors as part of the Project. 2.5.a 753 Facilites Engineering City of Vancouver Trans Mountain will fle the details of the Westridge Marine Terminal control measures related to City of Vancouver IR Prior to Constructon Superseded by NEB 81 Commitment addressed by Filing ID: C08265, Conditon 81: Westridge Marine Terminal Environmental protecton with the Natonal Energy Board (NEB), when they are available, as a No. 2.12.8 Conditon Environmental Protecton Plan. conditon of future Project approval, if such approval is granted or conditon issued. 819 Facilites Engineering Fraser Valley Regional Trans Mountain has commited to use Vapour Recovery and Vapour Combuston technology at the FVRD IR No. 2.07a Prior to Operatons Superseded by NEB 52, 53 Commitment addressed by Filing ID: A84416, Conditon 53, Fugitve Emissions Management Plan for District Westridge Marine Terminal that will substantally reduce volatle organic compounds (VOC) Conditon Westridge Marine Terminal and Filing ID: A84415, Conditon 52, Air Emissions Management Plan for emissions during product loading. Westridge Marine Terminal. 851 Facilites Engineering Strata NW 313 Trans Mountain will reduce air emissions from the Project by incorporatng emission reducton Strata NW313 IR No. Prior to Constructon Superseded by NEB 54, 55, 79 This commitment has been overtaken by the Fugitve Emissions Management Plans which had to be technologies in the Project design. 2.27a Conditon fled for terminal and pump staton sites under Conditons 54 and 55 as well as by the Air Emissions Management Plan for the three terminal sites which had to be fled under Conditon 79. All of these plans were approved by the NEB. 852 Facilites Engineering Strata NW 313 Trans Mountain is commited to meetng the applicable ambient air quality objectves at the Sumas Strata NW313 IR No. Prior to Constructon Superseded by NEB 54 Terminal and this is the primary criterion for determining tank design and vapour control 2.27a Conditon confguratons. 886 Facilites Engineering Vancouver Fraser Port Trans Mountain will meet or exceed accepted world standards in emission control practces as it has PMV IR No. 2.24b Prior to Constructon Superseded by NEB 52, 53 Commitment addressed by Filing ID: A84416, Conditon 53, Fugitve Emissions Management Plan for Authority DBA Port Metro commited to design practces that represent state of the art technology and have selected a world Conditon Westridge Marine Terminal and Filing ID: A84415, Conditon 52, Air Emissions Management Plan for Vancouver leader in vapour control technology. Westridge Marine Terminal.

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906 Facilites Engineering Metro Vancouver A gas monitoring network, including hydrocarbon detectors on the Vapour Combuston Unit (VCU) Metro Vancouver IR Prior to Constructon Superseded by NEB 53 Commitment addressed by Filing ID: A84416, Conditon 53, Fugitve Emissions Management Plan for and Vapour Recovery Units (VRUs) and reduced sulphur compound (RSC) detectors around the site, No. 2.2.1a Conditon Westridge Marine Terminal. will be installed, for early detecton of any leaks or equipment malfuncton. The detecton equipment will be integrated with the Westridge Marine Terminal control system to allow for contnuous measurement of the performance of the VCU and VRUs to ensure that they are operatng efciently and efectvely. 920 Facilites Engineering Simon Fraser University Trans Mountain will agree to work directly with the City of Burnaby and SFU in the determinaton of SFU IR No. 2.1.1.1 Prior to Constructon Complete the appropriate sizing of the new make-up water connecton, if the City of Burnaby chooses to consider it. 1523 Facilites Engineering Living Oceans Society Trans Mountain commits to implementng additonal controls to prevent the discharge of Living Oceans IR No. Prior to Constructon Complete hydrocarbons into storm water including, as applicable to the Sumas Terminal, hydrocarbon 1.28a detectors within secondary containments areas that, if triggered, will cause the automatc closure of the drain valve(s). 2177 Facilites Engineering NEB The sudden shut-down of all of the pump units at a pump staton due to power failure has the NEB IR No. 2.080b Prior to Constructon Complete Commitment addressed in Line 2 Transient Study (With Appendices) dated April 28, 2017. potental to cause a pressure surge in the pipeline. Trans Mountain will complete a surge study during the detailed engineering and design phase and any recommendatons, to mitgate potental pressure surges and any potental associated pipeline integrity-related issues, as applicable, will be incorporated into the design and into the operatng limits and protectve device setngs. 2187 Facilites Engineering NEB Trans Mountain commits that the seismic design of the proposed new tank at Sumas Terminal, NEB IR No. 2.129e Prior to Constructon Complete Trans Mountain identfed Annex E as being mandatory for all new TMEP tanks. This was including consideraton of sloshing and other efects, will be in accordance with the latest editon of communicated to design/build contractors through the contractng process, with design calculatons the American Petroleum Insttute (API) Standard 650, Welded Tanks for Oil Storage, Annex E, the required to be provided for review. Contractors are required to provide certfcates of completon recognized North American standard. All designs, including seismic consideratons, will be atestng to API 650 compliance including in relaton to Annex E. IFC tank design documents and undertaken by experienced and competent professional engineers, registered in Britsh Columbia. drawings stamped by professional engineers registered in the applicable jurisdicton (APEGA in Alberta and EGBC in Britsh Columbia. 2237 Facilites Engineering NEB Trans Mountain commits to conduct a further geotechnical investgaton at the north end of the NEB IR No. 4.60b Prior to Constructon Complete This further geotechnical investgaton has been completed in two stages, and the design of the new Edmonton Terminal West Tank Area (WTA), for the proposed new storage tank foundatons, during storage tank foundatons has been verifed and confrmed. The full results are captured in the two the detailed engineering and design phase. Trans Mountain will ensure a geotechnical screening reports issued by the retained engineering contractor. evaluaton will be completed to determine whether it is practcal, useful and cost efectve to atempt to drill somewhat deeper than might otherwise be required to determine if old underground mine workings exist in any zone that could be geotechnically material. 2291 Facilites Engineering District of North Vancouver Trans Mountain commits to fling with the NEB for approval, at least 90 days prior to applying for Reply Argument - Prior to Operatons Superseded by NEB 127 Per Conditon 127, report to be fled by Trans Mountain at least three months prior to applying for leave to open, a report prepared by an independent body confrming the adequacy of the proposed Appendix A Conditon leave to open the expansion facilites at the Sumas Terminal. fre protecton and frefghtng systems implemented or planned to be implemented at the Sumas Comments on NEB Terminal. Trans Mountain commits to providing a copy of the report to interested local governments. Draf Conditons - Conditon 109a 2420 Facilites Engineering District of North Vancouver Trans Mountain will conduct an area lightng study when the detailed design of Westridge Marine Reply Evidence 20.4 Prior to Constructon Complete Proof of completon: Light Emissions Impact Assessment Report, January 30, 2017. Terminal has progressed to the point where lightng can be selected. While the purpose of area Consideratons for lightng is operatonal safety, impact to the surrounding communites will be given due Potental Light and consideraton. Noise Issues - p3 - line 30 2421 Facilites Engineering NEB Trans Mountain will ensure the design of the proposed new storage tanks will be in accordance with Reply Evidence 20.6 Prior to Operatons In Progress Trans Mountain has identfed API Standard 650 to design/build contractors as the appropriate the latest editon of the API Standard 650, Welded Tanks for Oil Storage, as per the legislatve Proposed New standard to follow for new TMEP tanks. All such contractors are required to provide certfcates of requirements. Storage Tanks - p10 - completon atestng to API 650 compliance. As additonal check-points, Trans Mountain's line 20 independent engineering contractor reviews calculaton packages and engineering drawings during the design and constructon process. 2424 Facilites Engineering NEB Trans Mountain will consider the risk assessment for Burnaby in coordinaton with the Hazards and Reply Evidence 20.6 Prior to Constructon Complete Operability (HazOp) reviews and the implementaton of any recommendatons arising from the Proposed New HazOp reviews. Storage Tanks - p11 - line 40 2430 Facilites Engineering NEB Trans Mountain will ensure all of the property line setbacks for the Burnaby Terminal will meet or Reply Evidence 24.1 During Constructon Superseded by NEB 22, 23, 24, 25 exceed the requirements of Natonal Fire Protecton Associaton (NFPA) Code 30 and City of Burnaby Fire Code Conditon bylaws. Requirements - p1 - line 16 2435 Facilites Engineering City of Burnaby Trans Mountain will ensure all of the proposed new storage tanks at Burnaby Terminal will have Reply Evidence Prior to Operatons Complete water-draw piping, which may be used to remove water if it is deemed necessary as part of the tank 24.13 Boil Over - water management program. p35 - line 12 2436 Facilites Engineering City of Burnaby Trans Mountain will install a custody transfer quality, ultrasonic fow meter on each end of the two City Burnaby IR No. During Constructon In Progress The planned meter installatons have been incorporated in the design and refected on project proposed new Burnaby to Westridge delivery pipelines, as well as the existng Burnaby to Westridge 1.08.05n drawings. delivery pipeline. Trans Mountain will install the same type of meter on the proposed new mainline pipeline entering Burnaby Terminal. 2566 Facilites Engineering NEB Trans Mountain will ensure new tanks at Burnaby Terminal will be externally coated with a zinc Applicaton Volume During Constructon Complete primer/urethane top-coat system. The exterior colour will be determined with City of Burnaby and 4A s. 3.4.3.4 p4A-75 public input.

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2673 Facilites Engineering NEB Trans Mountain will consider the following design elements during detailed design to verify that Applicaton Volume Prior to Constructon Complete The criteria for sound mitgaton has been set in the Design Basis Memorandum– Pump Statons, acoustc performance of the pump statons meet or exceed the sound emission values used in the 5C TR-5C3 s. 7.2.1 Ancillary Facilites, MLBV Statons dated April 5, 2017, specifcally page 41 and drawing #01-13283- predicton study: equipment sound emission (sound power levels), buildings and enclosures; vent p159, Applicaton FC02-AB01001_01 Note 5 regarding acoustc insulaton. Vendors are designing the equipment and louvres, and equipment placement behind larger structures (barrier efects). Volume 5C TR-5C3- building on that basis. Terrestrial Noise s. 7.3.1 p161, Applicaton Volume 5C TR-5C3- Terrestrial Noise s. 7.4.1 p162 2856 Facilites Engineering City of Abbotsford Trans Mountain commits to consultng with the City of Abbotsford concerning the earthen dike City Abbotsford IR Prior to Constructon No Longer This commitment is no longer applicable (consultaton with City of Abbotsford on diking at Sumas around the Sumas Pump Staton and to implement any necessary mitgaton measures. No. 1.17aii Applicable Pump Staton is not required) given the Project footprint does not touch Sumas Pump Staton. Expansion actvites are at Sumas Terminal nearby, not the pump staton. 2978 Facilites Engineering New Democratc Party of Trans Mountain is commited to installing robust fre protecton systems at all of the proposed new NDP IR No. 2.2.1b During Constructon Superseded by NEB 127 Per Conditon 127, fre protecton and frefghtng systems report to be fled at least three months Canada storage tank areas at Burnaby Terminal, which will include fxed, automated, rim-seal area and full- Conditon prior to applying for leave to open the expansion facilites at the Burnaby Terminal. surface fre suppression on the storage tanks, the ability to apply cooling water streams, and the ability to apply foam to spilled oil to suppress combustble vapours. 3051 Facilites Engineering Burnaby Board of Trade Trans Mountain will ensure seismic design of storage tanks, including consideraton of sloshing and P-IR No. 1.02.03.d Prior to Constructon Complete Trans Mountain identfed Annex E as being mandatory for all new TMEP tanks. This was other efects, is in accordance with the latest editon of the American Petroleum Insttute (API) communicated to design/build contractors through the contractng process, with design calculatons Standard 650, Welded Tanks for Oil Storage, Annex E, the recognized North American standard. required to be provided for review. Contractors are required to provide certfcates of completon atestng to API 650 compliance including in relaton to Annex E. 3467 Facilites Engineering Living Oceans Society Trans Mountain will implement additonal controls to prevent the discharge of hydrocarbons into Living Oceans IR No. Prior to Constructon Complete Trans Mountain fled its Secondary Containment design report pursuant to CPCN Conditon 23 on storm water including, as applicable to the Edmonton Terminal: hydrocarbon detectors within 1.28a March 1, 2017 (A8194), with the CER's approval following in Conditon Compliance Leter Report secondary containments areas that, if triggered, will cause the automatc closure of the drain No. 6 dated October 23, 2019 (C02386). Trans Mountain clarifed that its design allowed for the valve(s). segregaton of the storm water management functons from the spill management functons (A5J1R4, Page 5 of 10). In one of its supportng reports (A5I2F7 at PDF Page 30), ithe following representaton was made: "If a spill occurs while draining the storm-water, valves will automatcally close to prevent oil escaping through the storm-water system." 3470 Facilites Engineering NEB Tanks at the Burnaby Terminal will be placed within secondary containment areas and will be fted Applicaton Volume Prior to Constructon Superseded by NEB 24, 127 The design of the second containment system for the Burnaby Terminal was fled and accepted with fre-protecton systems. 2, 2-22. Conditon under Conditon 24 (Filing IDs A91845 and A92675). The fre protecton system aspect will be addressed under Conditon 127. 3483 Facilites Engineering NEB The under-tank leak detecton system proposed for each new storage tank at the Burnaby Terminal NEB IR No. 3.093b, Prior to Constructon Superseded by NEB 24 will consist of perforated pipes which will drain to a sump adjacent to the tank. The leak detecton NEB IR No. 2.118c Conditon system design will be in accordance with API 650, Annex I. 3485 Facilites Engineering Dorothy Doherty New instrumentaton for pressure and fow measurement for each of the delivery pipelines will be Doherty D IR No. Prior to Constructon Superseded by NEB 26 Commitment addressed by Filing ID: A81936, Conditon 26: Burnaby Mountain Tunnel Opton - included in the designs of Westridge Marine Terminal. 2.1.m Conditon Design, Constructon and Operaton, Part b) vii), Secton 3.7. 3487 Facilites Engineering NEB Tanks, pumps, motors, piping, and other components at the Burnaby Terminal will be protected by Applicaton Volume Prior to Constructon Complete sophistcated control and ESD systems. 2, 2-22. 3489 Facilites Engineering NEB Trans Mountain will provide overfll protecton in accordance with API 2350. All proposed tanks at NEB IR No. 3.093b, Prior to Constructon Complete the Burnaby Terminal will be equipped with a radar gauging system for liquid level measurement NEB IR No. 2.118c and overfll protecton. The overfll protecton arrangement will be fnalized during the detailed engineering and design phase. 3491 Facilites Engineering NEB Trans Mountain will install fre protecton systems on or nearby the proposed new tanks at the NEB IR No. 4 29b Prior to Operatons Superseded by NEB 127 Per Conditon 127, fre protecton and frefghtng systems report to be fled at least three months Burnaby Terminal. Conditon prior to applying for leave to open the expansion facilites at the Burnaby Terminal. 3492 Facilites Engineering Living Oceans Society Trans Mountain will implement additonal controls to prevent the discharge of hydrocarbons into Living Oceans IR No. Prior to Constructon Complete Proof of completon: Westridge Marine Terminal Storm water Management and Spill Containment storm water including as applicable to the Westridge Marine Terminal: hydrocarbon detectors within 1.28a Philosophy, Rev B, Sectons 3.2, 3.3 and 3.4. secondary containments areas that, if triggered, will cause the automatc closure of the drain valve(s); storm water collecton tank(s) (WMT) with hydrocarbon detectors that, if triggered, will cause the automatc closure of the drain valve(s). Multple tanks with weirs or high/low connectons to provide bulk separaton of crude oil and water, in an upset conditon, are also being considered. In this context, the oil /water separators are the last elements of a mult-faceted system for protectng the environment during storm water discharge. The fnal confguratons and features of the storm water management systems will be determined in the detailed engineering and design phase. 3493 Facilites Engineering Living Oceans Society Trans Mountain will implement additonal controls to prevent the discharge of hydrocarbons into Living Oceans IR No. Prior to Constructon Complete storm water including, as applicable to the Burnaby Terminal: hydrocarbon detectors within 1.28a secondary containments areas that, if triggered, will cause the automatc closure of the drain valve(s); an intermediate retenton area, with hydrocarbon detectors that, if triggered, will cause the automatc closure of the drain valve(s); and a tertary containment area. 21 Health and Safety City of Abbotsford Trans Mountain commits to no complete closure of the two Ward Roads and one Sumas Road City of Abbotsford IR During Constructon In Progress Trafc Control Plan remains in development for this area. crossings in the City of Abbotsford between Sumas Shale and Jamieson Quarry. No. 1.02a

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30 Health and Safety City of Burnaby, Fraser As part of detailed engineering and constructon planning local Trafc Control Plans (TCPs) will be City Burnaby IR No. Prior to Constructon Superseded by NEB 73 This commitment has been overtaken by Conditon 73, which requires that Trafc Control Plans be Valley Regional District completed in consultaton with provincial and municipal authorites. TCPs will take into account 1.35.05k FVRD IR Conditon produced and fled including in consideraton of trafc volumes and engagement with stakeholders trafc volumes to minimize, to the greatest extent possible, the tme and quantty of trafc No. 1.32 including appropriate government authorites. disrupton to roadway users. 37 Health and Safety Natural Resources Canada Through its contract documents, Trans Mountain will ensure ongoing consultaton between the GoC NRCan IR No. Prior to Constructon Superseded by NEB 64, 89 The aspects of fre preventon planning and fre preparedness and response are addressed in the Prime Contractor and fre management authorites regarding constructon schedules, including 1.07.1a Conditon Health and Safety Management Plan and Project-Specifc Safety Plans fled under Conditon 64 (as locatons, and for discussions and implementaton of planning as it pertains to wildfre danger developed in consultaton with stakeholders). Response aspect also addressed in the Constructon conditons during the fre season. Emergency Response Plans fled under Conditon 89. 41 Health and Safety Regional District of Fraser- Trans Mountain Commits to implement Localized Trafc Control Plans (TCPs) to minimize disrupton, RD of Fraser-Fort Prior to Constructon Superseded by NEB 73 This commitment has been overtaken by Conditon 73, which requires that Trafc Control Plans be Fort George to the greatest possible extent, to Village and Regional District-owned property, and in consultaton George IR No. 1.12d Conditon prepared in consultaton with stakeholder including appropriate government authorites with the with municipal representatves of the Regional District of Fraser-Fort George and Valemount. object of mitgatng trafc management risk. 47 Health and Safety Township of Langley Trans Mountain will consult with the Township of Langley in the development of the trafc and Langley IR No. 1.14e Prior to Constructon Superseded by NEB 73 Trans Mountain fled its Trafc and Access Control Management Plan under Conditon 73 on June 1, access management plans, and trafc control plans, to mitgate potental negatve efects. Conditon 2017 (Filing ID A84151). Appendix E shows that relevant governmental authorites including the Township of Langley were consulted. 50 Health and Safety NEB To comply with the systematc Safety Management Program approach as required by Secton 47 of Part 2 – Consultaton Prior to Constructon Superseded by NEB 89 This commitment has been overtaken by Conditon 89, with the constructon-focused ERP flings the NEB Onshore Pipeline Regulatons (OPR), an Emergency Response Plan (ERP) will be developed Update No. 1, 2-45 Conditon contnuing to be made. and implemented for TMEP constructon. The TMEP ERP for constructon will be separate from, and complementary to, the Trans Mountain operatons ERP and will lay out the guidelines for the development of the prime contractors’ detailed site-specifc ERPs. The TMEP ERP for constructon will address legislatve requirements and be based on recognized industry standards of practce. The site-specifc ERPs will address potental constructon emergency situatons requiring response by TMEP constructon resources (as supplied by the prime contractors), Trans Mountain operatons resources, or external resources, in keeping with the philosophy of using the most immediately available resources. 51 Health and Safety NEB Trans Mountain will develop detailed trafc estmates as constructon and Project planning related Applicaton Volume Prior to Constructon Superseded by NEB 73 The Trafc and Access Control Management Plan fled under Conditon 73 includes such trafc to the movement of people, materials and equipment contnues. Trans Mountain will also develop 5B, 7-129. Conditon estmates. further logistcs informaton on transportaton modes and routes to be used during the constructon phase, as well as tming transportaton movements to each constructon spread and/or facility locaton. 53 Health and Safety NEB Trans Mountain will employ a number of measures to reduce Project-related vehicles and limit the Applicaton Volume Prior to Constructon Superseded by NEB 73 Trans Mountain has worked with its contractors in the development of Trafc Plans to accommodate efects associated with constructon-related trafc, including providing daily shutle bus services 5B, 7-129. Conditon marshalling yards throughout the project. Those yards will be collector points for workers, from from staging areas to work sites and for local workers from pre-determined regional staging areas. where they will take buses and shutles to their work sites. This will reduce the majority of personal vehicle trafc leaving only work vehicles for welders, superintendents, supervisors, and foremen. These marshalling yards have all been applied for and approved via the temporary facilites process. 54 Health and Safety NEB Trans Mountain will have a Trafc and Access Control Management Plan and will direct contractors Applicaton Volume Prior to Constructon Superseded by NEB 73 Under Conditon 73, Trans Mountain has fled its overarching Trafc Access and Control to have Trafc Control Plans, and the Project employ numerous measures to reduce its 5B, 7-135. Conditon Management Plan (A84149) and is contnuing to fle the contractor site-specifc Trafc Control Plans. transportaton footprint. 56 Health and Safety NEB Trans Mountain will implement controls, in accordance with the applicable legislatve requirements, NEB IR No. 2.080a Prior to Constructon Superseded by NEB 63 Measures to prevent damage to overhead and underground power systems are set out in the Health to prevent damage to over-head and underground power systems during constructon. Conditon and Safety Management Plan (A83607) and companion Project-Specifc Safety Plans being fled under Conditon 63. 57 Health and Safety NEB Trans Mountain will make the Code of Conduct available to all workers. NEB IR No. 1.16c During Constructon Superseded by NEB 64 All workers are required to undertake a review of the TMEP Worker Code of Conduct as part of the Conditon on-boarding and orientaton process. This baseline requirement is set out in Appendix C of the TMEP Health and Safety Management Plan (A5L7Y9, PDF Page 133). 66 Health and Safety City of Burnaby, NEB Trans Mountain will submit to the NEB a Constructon Safety Manual 90 days in advance of NEB IR No. 1.15a, Prior to Constructon Superseded by NEB 64 This commitment has been overtaken by Conditon 64, with the required flings contnuing to be constructon commencing. City Burnaby IR No. Conditon made. 1.06.08b 77 Health and Safety NEB All constructon sites with 20 or more workers will be required to establish a Work Place (Joint Applicaton Volume During Constructon Superseded by Contractors required to follow provincial Occupatonal Safety and Health requirements for Work Worksite) Health and Safety (JWH&S) commitee. The purpose of the commitee is to review 4B, 4B-50. Legal/Regulatory Place Health and Safety Commitees. signifcant incidents and provide feedback on potental correctve actons as well as ensure that Requirement issues pertaining to work place health and safety are addressed with worker input. 89 Health and Safety City of Surrey, City of Trans Mountain will prepare a constructon Emergency Response Plan (ERP). City of Surrey IR No. Prior to Constructon Superseded by NEB 89 This commitment ultmately translated into Conditon 89, with the required ERP flings contnuing to Vancouver 1.4h, City of Conditon be made. Vancouver IR No. 1.08.02 93 Health and Safety Natural Resources Canada The debris disposal mitgaton measures, as they pertain to potental fre hazards, will be GoC NRCan IR No. During Constructon Superseded by NEB 89 Commitment addressed in Conditon 89 Emergency Response Plans for constructon fled June 23, incorporated into the Fire Preventon Plan. 1.07.1b Conditon 2017 Filing ID A84571-2, A5R6T7, Secton 19.5.1, PDF Page 42. 283 Health and Safety BC Parks, NEB Prior to constructon a danger tree risk assessment will be carried out in accordance with BC Parks boundary Prior to Constructon Superseded by NEB 64 Secton 39.1 of the Health and Safety Management Plan (requires the conduct of a danger tree risk Occupatonal Health and Safety Regulaton to ensure worker safety under WorkSafeBC. adjustment Conditon assessment per WorkSafeBC (Filing ID C83607, pursuant to Conditon 64). applicaton (August 2014) 502 Health and Safety NEB Site specifc safe work procedures and mitgaton measures for the Edmonton Terminal will be NEB IR No. 3.93b Prior to Constructon Superseded by NEB 64 The Project-Specifc Safety Plan applicable to the Edmonton Terminal was fled on March 16, 2018 developed during detailed constructon planning. Conditon under Conditon 64 (Filling ID A90629). Job Hazard Analysis required to be performed, with Trans Mountain site representatves also providing local oversight.

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638 Health and Safety City of Burnaby The proposed primary access routes at Burnaby Terminal will be designed and constructed so that City Burnaby IR No. During Constructon In Progress Emergency response access points have been designated at the main gate and the regional ofce emergency response access is available from a minimum of two independent directons. 2.030e.iii) gate. A new access was developed for Greystone Drive that will ensure uninterrupted access to the Burnaby Terminal. 639 Health and Safety City of Coquitlam Trans Mountain will develop localized, detailed Trafc Control Plans (TCP’s) in cooperaton with City of Coquitlam IR Prior to Constructon Superseded by NEB 73 The Trafc and Access Control Management Plan and the associated Trafc Control Plans are being selected Contractors and with contnued consultaton with municipalites where work on public No. 2.A.1.c Conditon developed under Conditon 73 including in consultaton with relevant governmental authorites roadways is required, including United Boulevard. (including municipalites). United Boulevard in Coquitlam specifcally addressed in Secton 6.2.6.6 of the TACMP.(Filing ID 84149-3). 648 Health and Safety The City of Edmonton Trans Mountain will develop a Trafc and Access Control Management Plan in consultaton with the City of Edmonton IR Prior to Constructon Superseded by NEB 73 Trans Mountain fled its Trafc and Access Control Management Plan under Conditon 73 on June 1, City of Edmonton prior to constructon. No. 2.3a Conditon 2017 (Filing ID A84151). Appendix E shows that relevant governmental authorites including the City of Edmonton were consulted. 649 Health and Safety The City of Edmonton Afer the development of the site-specifc constructon Emergency Response Plan (ERP), Trans City of Edmonton IR Prior to Constructon Complete Copies of the Site Specifc Emergency Plan and Project Specifc Safety Plan were provided to Mountain will provide a hard copy or electronic copy to the City of Edmonton as requested. No. 2.4.3b representatves at the City of Edmonton on October 3, 2019 by email. 652 Health and Safety City of Kamloops Trans Mountain is commited to consultaton with the City of Kamloops on trafc management City of Kamloops IR Prior to Constructon Superseded by NEB 73, 14, 49 The overall Trafc and Access Control Management Plan and the associated Trafc Control Plans are plans. No. 2.01g Conditon developed per Conditon 73 in consultaton with relevant stakeholders including appropriate government authorites. In the case of the City of Kamloops, the Technical Working Group mechanism established under Conditons 14 and 49 provides a key discussion forum. 663 Health and Safety City of New Westminster Trans Mountain is commited to consultaton with the City of New Westminster on trafc City New Prior to Constructon Complete management plans. Westminster IR No. 2.C.2.iii 668 Health and Safety City of New Westminster Trans Mountain is commited to working with CN with respect to the Project and current operatons City New Prior to Constructon Complete Trans Mountain notes each emergency situaton would be diferent and the response would address to ensure the safety of the public that live and work near facilites. Westminster IR No. the specifc circumstances presented. Trans Mountain would work cooperatvely with CN and the 2.E.1.ii appropriate authorites with respect to the determinaton of liability. Trans Mountain Pipeline ULC would manage its claims associated with an oil incident and confrms it is responsible for all of its legal liabilites. 679 Health and Safety NEB Trans Mountain commits to having data collecton conducted to obtain current corridor level trafc NEB Cond IR No. Prior to Constructon Complete demands in the vicinity of Westridge Marine Terminal access points. The counts will cover the Inlet 31.1 Drive/Hastngs Street corridor as well as residental streets Bayview Drive and Clif Avenue. 998 Health and Safety City of Burnaby, Landowner To facilitate movement of all trafc, including pedestrian, cyclist and vehicle trafc, Trafc Control Hawes F IR No. Prior to Constructon Superseded by NEB 73 The Trafc Management Plan has been developed for Spread 7. Trafc Control Plans are developed - Frances Hawes Plans (TCPs) will be established at the Trans Mountain Trail and Burnaby Mountain Urban Trail 1.2a;NEB Route Conditon for all work that may impact motorists, pedestrians, or cyclists. These plans include mitgaton crossings in consultaton with local municipalites. Access and use disruptons will be minimized as Hearing Transcript strategies for any work might afect cyclists or pedestrians on trails, bike paths, or sidewalks. The possible using low-impact road-crossing constructon methods. Seg 7 Vol 3 para TCPs are submited to both the City of Burnaby and the TMEP Trafc Management Team. 1865,1931 1651 Health and Safety Sto:lo Collectve As noted in the response to NEB IR No. 1.17d1 (Filing ID A3W9H8), Trans Mountain will develop a Sto:lo Collectve Prior to Constructon Complete As a threshold mater, workers must show up "ft for work" including being free of the efects of Project-specifc policy pertaining to substance abuse. The overarching goal of the policy will be to Recommendaton drugs (legal, illegal, prescripton) and alcohol. This baseline expectaton is set out in Sectons 8.2 and assist the Project in maintaining a safe and productve work environment for all workers and the #75, #78 26 of the TMEP Health and Safety Management Plan, and also enters Project-Specifc Safety Plans. public, and to minimize pressure on regional medical, social and police services related to alcohol This topic is also addressed in the TMEP Worker Code of Conduct. and drug related incidents. As noted in the Socio-Economic Management Plan in Appendix C of Volume 6B of the Applicaton, Trans Mountain will adhere to a policy of no tolerance of use or being under the infuence of illicit drugs or alcohol during work hours. The policy will also outline guidance and expectatons for workers related to medicaton which may impair their ability to competently carry out job requirements. As noted in the Socio-Economic Management Plan, Trans Mountain will develop mandatory minimum driving standards that will include the prohibiton of drug and alcohol infuence while operatng motor vehicles. 1654 Health and Safety Sto:lo Collectve Contractors will be required to adhere to Safety Management Programs and workers will be required Sto:lo Collectve Prior to Constructon Superseded by NEB 64 Commitment addressed in Secton 26.0 of the HSMP - Fit for Duty / Alcohol and Drugs. The HSMP to adhere to the employee Code of Conduct which will address substance and alcohol abuse. Recommendaton Conditon requires that our Contractors have a PSSP. #76 2258 Health and Safety City of Abbotsford Trans Mountain can commit to developing localized Trafc Control Plans (TCPs) to avoid divertng or City of Abbotsford IR During Constructon Scoping Commitment will be addressed by Trafc Control Plan once developed. delaying quarry truck trafc in the area of Sumas Mountain residental streets and ensuring no No. 1.02a complete closure of these roads during normal quarry operaton hours such that access is available to the maximum extent possible. 2577 Health and Safety NEB Trans Mountain will report any unintentonal fres caused by actvites related to access road Applicaton Volume Prior to Constructon Superseded by NEB 89 Fire response contngency plans and associated reportng protocols set out in Constructon constructon, logging, or debris disposal, it will be reported to the appropriate regulators and 4B s. 3.4.2.1 p4B-15, Conditon Emergency Response Plans fled under Conditon 89. controlled. Fire control eforts will be described in the TMEP Fire Response Contngency Plan (FRCP). Applicaton Volume The FRCP will be completed prior to the commencement of clearing operatons. 4B s. 5.2.6 and 5.2.7 2584 Health and Safety NEB The site-specifc Trafc Control Plans (TCPs) will consider the use of ferrying at Westridge Marine Applicaton Volume Prior to Constructon Complete Having explored the available optons, Trans Mountain opted to use a pre-existng parking lot next Terminal as a trafc mitgaton measure. 4B s. 4.4.2 p4B-43 to the Lougheed Highway in Coquitlam to support the safe and efcient transportaton of personnel to and from the Westridge work site. 2872 Health and Safety City of Burnaby Trans Mountain will ensure the Lougheed highway remains open throughout the entre constructon City of Burnaby IR During Constructon In Progress Trans Mountain addressed the Lougheed Highway in Secton 6.2.6.6 of its Trafc and Access Control phase of the project. No. 1.43.2a- Management Plan (A84149). Guidance provided that there would be no full road closure on the Response to Moton main route, on/of ramps, and crossing roads that may have negatve efects on Lougheed Highway/Highway 7 corridor. 3633 Health and Safety City of Coquitlam Trans Mountain will complete updated trafc counts in United Boulevard area. Non-Regulatory Prior to Constructon Complete United Boulevard addressed in Secton 6.2.6.6 of the TACMP. fled June 2017, Page 74, Table 2.3. Commitment

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3634 Health and Safety City of Kamloops Trans Mountain will maintain access to Aviaton Way, Kamloops during constructon (daily access Non-Regulatory During Constructon In Progress A bypass has been constructed to accommodate the fow of trafc around constructon actvity in required). Commitment the area of Aviaton Way. 4518 Health and Safety City of Abbotsford Trans Mountain commits to providing the City of Abbotsford with Trafc Control Plans in compliance Conditon IR No 41.1 Prior to Constructon In Progress with City permitng requirements. 1 Indigenous Relatons Upper Nicola Band Trans Mountain will contact Upper Nicola to arrange a mutually agreeable tme to discuss Upper Upper Nicola Band Prior to Constructon Complete Nicola’s “Consultaton and Policy Principles” (Draf 8, December 2, 2014). IR No. 2(c).2(m) 2 Indigenous Relatons Coldwater Indian Band Trans Mountain will not pursue on-Reserve routng optons without the express consent of the CIB IR No. 1.1l Prior to Constructon No Longer Conditon 39 addresses the Hydrogeological study at Coldwater Indian Reserve (IR) No. 1; the map Aboriginal community. Applicable (Figure 1, page 6 of 40) in the Conditon 39 Summary Report (A7F6Y6), fled with the CER on 2020- 05-15, shows that both the Eastern Route and the Western Alternatve Route, are outside of the Coldwater Reserve Boundaries. 3 Indigenous Relatons NEB Trans Mountain will develop a series of technical learning sessions for Ts’elxweyeqw Tribe NEB IR No. 3.009 During Constructon In Progress Commitment will be addressed by consultaton actvites to be undertaken. Proof of completon will Management Limited (TTML) to atend. These sessions are being designed to facilitate open be the Records of Engagement within Conditon 96. conversaton between members of TTML, and Trans Mountain’s technical discipline experts regarding the Project’s impacts on TTML’s interests. 8 Indigenous Relatons Adams Lake Indian Band Engagement with Aboriginal groups will contnue during and afer the regulatory process. Should the ALIB IR No. 1.6.06b Project Lifecycle Superseded by NEB 96 Commitment is captured in all of our Conditon 96 fling, which demonstrate that engagement with Project get approval ongoing engagement with Aboriginal groups will contnue during constructon. Conditon Indigenous groups is ongoing. C96 CER Filing ID's include: A84533 fled on 2017-06-21, A88864 fled on 2017-12-21, A92639 fled on 2018-06-21, A96940 fled on 2018-12-21, C00070 fled on 2019-06- 21, C02363 fled on 2019-10-22, C03883 fled on 2019-12-23, C06946 fled on 2020-06-22, C11031 fled on 2021-01-19. 9 Indigenous Relatons Tsawout First Naton Trans Mountain will contnue to engage with Tsawout First Naton. Any additonal informaton that Tsawout FN IR No. Prior to Constructon Complete Tsawout First Naton is able to provide to Trans Mountain, will also be considered in Project planning 2.55b and design. 14 Indigenous Relatons Ermineskin Cree Naton, In additon to the Employment Policy and the Educaton and Training Policy, Trans Mountain will Natons IR No. Prior to Constructon Complete Trans Mountain's Aboriginal Procurement Policy is complete. Kelly Lake Cree Naton, developed a Project-specifc Procurement Policy, which indicates that the Project is commited to 1.1.5e Kwantlen First Naton, maximize the use of local, regional, Aboriginal, provincial and Canadian businesses during the Samson Cree Naton, Sucker constructon and operaton of the Project. Creek First Naton, Whitefsh (Goodfsh) Lake First Naton #128 18 Indigenous Relatons Adams Lake Indian Band, Trans Mountain will contnue to engage Aboriginal communites through all phases of the Project. ALIB IR No. 1.6.03, Project Lifecycle Superseded by NEB 96 Commitment is captured in all of our Conditon 96 fling, which demonstrate that engagement with Ermineskin Cree Naton, Site-specifc informaton identfed by Aboriginal groups will be reviewed. Kwantlen FN IR No. Conditon Indigenous groups is ongoing. C96 CER Filing ID's include: A84533 fled on 2017-06-21, A88864 fled Kelly Lake Cree Naton, 1.01.7, Natons IR on 2017-12-21, A92639 fled on 2018-06-21, A96940 fled on 2018-12-21, C00070 fled on 2019-06- Kwantlen First Naton, No. 1.1.7g, Natons 21, C02363 fled on 2019-10-22, C03883 fled on 2019-12-23, C06946 fled on 2020-06-22, C11031 O’Chiese First Naton, IR No. 1.1.7h, fled on 2021-01-19 O’Chiese First Naton, O'Chiese FN IR No. Samson Cree Naton, Sucker 1.04.3 Creek First Naton, Whitefsh (Goodfsh) Lake First Naton #128 58 Indigenous Relatons NEB Trans Mountain will meet with the governments, industry and local Aboriginal communites with Applicaton Volume Project Lifecycle In Progress Addressed in Volume 6 Environmental Management Plans, Secton 5.1 - Timber Salvage Plan, (CER respect to the use of merchantable tmber. 5B, 7-109. Filing ID: A6E3Y8). 91 Indigenous Relatons Sto:lo Collectve Trans Mountain is commited to the Trafc Mitgaton Measures as part of the Socio-Economic August 11, 2014 Prior to Constructon Complete Mitgaton and Enhancement measures outlined in the TMEP Facility Applicaton (Volume 6B, Leter from Sto:lo Secton 8.4.3, Appendix C). Trans Mountain will contnue engagement with Sto:lo on Collectve to Trans Recommendaton 66 of their August 11, 2014 leter to Trans Mountain, but this recommendaton Mountain requires Sto:lo representatves to identfy necessary, supportng informaton 4 months prior to constructon. 114 Indigenous Relatons NEB To enhance skill development in support of the Project, Trans Mountain is developing an Pre-Applicaton Prior to Constructon Complete TMEP Employment Policy fled with the NEB through a consultaton update during the hearing. employment and training policy. Project Descripton, TMEP Training Policy for Aboriginal Peoples fled with the NEB through a consultaton update during p 46. the hearing. 384 Indigenous Relatons Transport Canada, Trans Mountain will submit its Oil Polluton Emergency Plan for the Westridge Marine Terminal to Trans Mountain Prior to Operatons Superseded by NEB 126 Commitment will be addressed by CER Conditon 126 - Emergency Response Plan for the Westridge Vancouver Fraser Port Transport Canada for review at least six months before terminal operatons begin. Response to NEB IR Conditon Marine Terminal. Note: Conditon to be fled at least 6 months prior to commencing operatons. Authority DBA Port Metro TERMPOL Rpt and Vancouver Outstanding Filings (January 2, 2015) Recommendaton 17 397 Indigenous Relatons Province of Britsh Columbia With respect to marine-based emergency preparedness and response, Trans Mountain is prepared Province BC IR No. Prior to Constructon Superseded by BC 11 BC EAO Conditon 11 requires TM to engage with Indigenous groups; TM fled its engagement Issues to make an investment, and is discussing same directly with First Natons. Trans Mountain is 1.1.22d EAO Summary and Resoluton table on October 1, 2018. TM Investment in WCMRC: interested in beter understanding how the authorites and governments responsible for marine spill htps://www.transmountain.com/news/2017/response-capacity-enhanced-150-million-for-new- preventon and emergency preparedness related actvites will partcipate. bases-jobs. 443 Indigenous Relatons NEB All Aboriginal Groups that expressed an interest or concern will be contacted 3 months prior to NEB IR No. 2.011c Prior to Constructon Complete clearing work start to discuss how an opportunity could be developed for Salvageable Timber in their territory, within Spread 1.

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445 Indigenous Relatons NEB Trans Mountain is commited to maximize employment opportunites for local, regional and NEB IR No. 1.23b, During Constructon Superseded by NEB 107 Commitment is captured in all of our Conditon 107 fling: A88805 fled on 2017-12-19, A92602 fled Aboriginal groups along the proposed corridor. Trans Mountain will ensure that constructon NEB IR No. 1.24d Conditon on 2018-06-19, A96793 fled on 2018-12-18, C00069 fled on 2019-06-21, C03799 fled on 2019-12- contractors report on a monthly basis hiring statstcs that include the percentage of local, regional 19, C06916 fled on 2020-06-19 C10456 fled on 2020-12-16. and Aboriginal hiring’s based on total workforce. 449 Indigenous Relatons NEB Trans Mountain is commited to maximizing opportunites for regional partcipaton in Project- Applicaton Volume Prior to Constructon Superseded by NEB 11, 12 Commitment captured in CER flings: Conditon 11a (A81758) fled on 2017-02-16, Conditon 11b related employment, most of which will be through contractng opportunites related to the Project 5B, 7-177. Conditon (A83554) fled on 2017-05-15, Conditon 12b (A83547) fled on 2017-05-15. constructon. Where qualifed local contractors are available, they will have the opportunity to partcipate in the contractng process established by Trans Mountain. 451 Indigenous Relatons NEB Trans Mountain will initate an Aboriginal Employment and Training Program to support increased Applicaton Volume Prior to Constructon Superseded by NEB 11, 12 Commitment captured in CER flings: Conditon 12b (A83547) fled on 2017-05-15. access to Aboriginal employment opportunites on the Project, which will further increase 5B, 7- 183. Conditon employment opportunites for Aboriginal communites. 530 Indigenous Relatons Sto:lo Collectve Trans Mountain is commited to ongoing discussion with the Sto:lo Collectve about emerging health Sto:lo Collectve During Constructon Superseded by NEB 13, 96 Conditon 13 (A84618-3) outlines the plan (SEEMP) and specifcally Table 3, page 22 of 105, issues related to the Project. Recommendaton Conditon Indicator #14 - Number of people afected by a notfable disease in a work camp. SEEMP Reportng #79, #80, #81 is on TM website at: htps://www.transmountain.com/socio-economic-reports Conditon 96 fling demonstrates engagement. C96 CER Filing ID's include: A84533 fled on 2017-06-21, A88864 fled on 2017-12-21, A92639 fled on 2018-06-21, A96940 fled on 2018-12-21, C00070 fled on 2019-06-21, C02363 fled on 2019-10-22, C03883 fled on 2019-12-23, C06946 fled on 2020-06-22 C11031 fled on 2021-01-19. 551 Indigenous Relatons Environment Canada Trans Mountain will work with potentally afected local Aboriginal and Mets communites identfed GoC Parks IR No. Project Lifecycle Superseded by NEB 72 Trans Mountain will meet the requirements of the Parks Canada directve on human burials in by Parks Canada. 2.141 Conditon Natonal Park and NHS setngs: Management Directve 2.3.1: Human Remains, Cemeteries and Burial Grounds (Parks Canada 2000). CER Conditon 72, Secton 4.1 4.1 Potental Permits, Approvals and Authorizatons, Table 4-1, page 23 of 223 addresses Management Directve 2.3.1. 600 Indigenous Relatons Adams Lake Indian Band Trans Mountain commits to further engagement with the Adams Lake Indian Band (ALIB) in regard to ALIB IR No. 2.06.5b Project Lifecycle Superseded by NEB 96 Commitment is captured in all of our Conditon 96 fling, which demonstrate that engagement with the plans, programs, initatves and tmelines outlined in ALIB_IR No. 2.06.5a. Conditon Indigenous groups is ongoing. C96 CER Filing ID's include: A84533 fled on 2017-06-21, A88864 fled on 2017-12-21, A92639 fled on 2018-06-21, A96940 fled on 2018-12-21, C00070 fled on 2019-06- 21, C02363 fled on 2019-10-22, C03883 fled on 2019-12-23, C06946 fled on 2020-06-22, C11031 fled on 2021-01-19. 605 Indigenous Relatons Upper Nicola Band Trans Mountain will share the fnal approved Work Plan Procedure and Schedule (WPPSs) and a Upper Nicola Band During Constructon In Progress Commitment will be addressed by consultaton actvites to be undertaken. Proof of completon will detailed Drilling Fluids Management Plans (DFMPs) with Upper Nicola, and these plans will be made IR No. 2(c).02(z) be the Records of Engagement within Conditon 96. available no later than one month before prior to constructon of the crossing. 683 Indigenous Relatons NEB Trans Mountain commits to updatng the NEB on any feedback received on Conditon 52: Air NEB Cond IR No. Prior to Constructon Superseded by NEB 52 Conditon 52, Secton 2, page 13 of 100, and Appendix A, Secton 3.3, page 63 0f 100 provide the Emissions Management Plan for the Westridge Marine Terminal in its next fling of Conditon 96 – 18.5b, c Conditon indigenous engagement record (Filing ID A82640-2). Reports on Aboriginal Engagement – Constructon. 684 Indigenous Relatons NEB If the Asini Wachi Nehiyawak (Mountain Cree) Traditonal Band (AWNTB) provide the informaton NEB Cond IR No. During Constructon Complete required for entry into the Trans Mountain Employment Interests and Skill Registry directly to Trans 48.1 Mountain, Trans Mountain will enter the data into the Registry on behalf of AWNTB. 697 Indigenous Relatons Horse Lake First Naton Trans Mountain is commited to contnued engagement with Aboriginal groups that are directly Horse Lake FN IR No. Prior to Constructon Superseded by NEB 72 Conditon 72, Reactvaton EPP, sent to Indigenous groups for feedback on Jan. 26, 2021, including impacted and are interested in providing traditonal knowledge as it relates to the locaton and 2.1b (PDF page 2), Conditon Horse Lake. Conditon 72, Appendix F identfes the Indigenous groups engaged on the Pipeline EPP, constructon of the Trans Mountain Expansion Project and will contnue to discuss proposed Horse Lake FN IR No. including Horse Lake (Filing ID A5Q7H7). mitgaton and enhancement measures. 2.3a (PDF page 8) 698 Indigenous Relatons Horse Lake First Naton Trans Mountain will notfy Horse Lake First Naton of the constructon schedule in the vicinity of their Horse Lake FN IR No. Prior to Constructon Complete C96 CER Filing ID's include: A84533 fled on 2017-06-21, A88864 fled on 2017-12-21, A92639 fled community two weeks prior to the start of constructon, within Spread 1. 2.3d on 2018-06-21, A96940 fled on 2018-12-21, C00070 fled on 2019-06-21, C02363 fled on 2019-10- 22, C03883 fled on 2019-12-23, C06946 fled on 2020-06-22, C11031 fled on 2021-01-19. 743 Indigenous Relatons Sto:lo Collectve Trans Mountain commits to working in partnership with Sto:lo Collectve to develop a mutually Sto Lo Collectve IR Prior to Constructon Complete acceptable plan to discuss the 89 recommendatons in the Integrated Cultural Assessment (ICA). No. 1.1a 795 Indigenous Relatons Sto:lo Collectve Commit to working with Sto:lo Collectve to develop a plan to discuss future consultaton Sto Lo Collectve IR Prior to Constructon Complete communicatons and notfcatons pertaining to the areas of interest outlined in the Integrated No. 1.2e Cultural Assessment (ICA). 854 Indigenous Relatons Stk'emlupsemc Te Trans Mountain will consult with the Stk'emlupsemc Te Secwepemc (SSN) on access control SSN IR No. 2.32.1 During Constructon In Progress Proof of completon will be Record of Engagement in Conditon 96. Secwepemc measures within the SSN territory. 859 Indigenous Relatons Samson Cree Naton Should the Project be granted approval, Trans Mountain will implement measures to manage access Samson Cree Naton During Constructon In Progress during constructon with the objectves of safety for Project partcipants and the public and to IR No. 2.1.9 minimize Project Environmental disturbance. Trans Mountain will work with traditonal land and resource users to select designated access locatons for crossings over the constructon right-of-way to allow safe access to traditonal land. 866 Indigenous Relatons Matsqui First Naton Trans Mountain is commited to transparency and will provide the results of the risk assessment to Matsqui FN IR No. Prior to Constructon In Progress Matsqui First Naton upon completon of the detailed design. 2.09.b

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870 Indigenous Relatons NEB Trans Mountain commits to updatng the NEB on any feedback received on Conditon 81: Westridge NEB Cond IR No. Project Lifecycle Superseded by NEB 96 IR Response was date May 19, 2017; so the subsequent C96 fling(s) were: A84533 fled on 2017-06- Marine Terminal Environmental Protecton Plan in its next fling of Conditon 96 – Reports on 25.2 Conditon 21, A88864 fled on 2017-12-21 , Conditon 81 (Filing ID: A5Q0R0), Secton 3 Consultaton and Aboriginal Engagement – Constructon. Engagement - The draf of the updated WMT EPP was released on November 17, 2016 for review. Feedback was requested by February 24, 2017. Trans Mountain incorporated any feedback into the fnal WMT EPP or has provided ratonale for why input has not been included, as summarized in Appendix F. 874 Indigenous Relatons Cheam First Naton and Workshops focused on the Environmental Protecton Plan (EPP) and Emergency Response Plan (ERP) Cheam and Prior to Constructon Complete Environmental Protecton Plan (EPP) and Emergency Response Plan (ERP) workshops were held in Chawathil First Naton are tentatvely scheduled to take place along the proposed Project right of way, startng in Q2; Chawathil FN IR No. September 2015. Chawathil First Naton atended the workshop in Abbotsford. An EPP meetng was Cheam and Chawathil will be invited to atend both workshops. 2(b).2.1.d held with Cheam First Naton on February 3, 2016. 888 Indigenous Relatons NEB Trans Mountain will develop an Aboriginal Monitors plan. Pre-Applicaton Prior to Constructon Superseded by NEB 98 Conditon 98 (Filing ID: A5R5A1) Project Descripton, Conditon p 44, 45. 896 Indigenous Relatons Sto:lo Collectve Trans Mountain is commited to working in partnership with the Sto:lo Collectve to develop a series Sto:lo Collectve Project Lifecycle In Progress Condton 96 demonstrates our ongoing engagement with the Stó:lō Collectve on topics including a of workshops to discuss questons and address concerns. The workshop series will be confrmed in Recommendaton #2 series of workshops to discuss questons and address concerns. Commitment will be addressed by Q1, 2015. further engagemenet actvites to be undertaken. Proof of completon will be the Records of Engagement within Conditon 96. 932 Indigenous Relatons NEB Trans Mountain will notfy potentally afected Aboriginal groups about the proposed fnal Fraser NEB Cond IR No. Prior to Constructon Complete Valley/Cheam camp locaton, with the invitaton to provide comments on the fnal locaton. 54.3 937 Indigenous Relatons Tsawout First Naton Trans Mountain will contnue to engage Tsawout First Naton through all phases of the Project. Tsawout FN IR No. Project Lifecycle Complete Traditonal resource use informaton received from Tsawout First Naton will be reviewed in order to 2.56a confrm literature results and mitgaton measures including those found in the Environmental Protecton Plans . Any additonal site-specifc mitgaton measures resultng from these studies will be provided in the updated Environmental Protecton Plans. 938 Indigenous Relatons Tsawout First Naton Trans Mountain is prepared to meet with the Tsawout First Naton following receipt of its Traditonal Tsawout FN IR No. Prior to Constructon Complete Marine Resource Use (TRMU) to review the fndings of the report. Trans Mountain is willing to 2.65d review and incorporate any appropriate mitgaton measures into the updated Environmental protecton plans that have not already been captured. 952 Indigenous Relatons Georgia Strait Alliance Trans Mountain is commited to maximizing employment and business opportunites for Aboriginal, Georgia Strait During Constructon Superseded by NEB 11, 12 Commitment captured in CER flings: Conditon 11a (A81758) fled on 2017-02-16, Conditon 11b local and regional groups. Alliance IR Conditon (A83554) fled on 2017-05-15. No.2(b).13a 972 Indigenous Relatons Coldwater Indian Band Aboriginal capacity inventory data will be provided to Trans Mountain’s contractors for hiring CIB IR No. 1.4f During Constructon Superseded by NEB 11, 12 Commitment captured in CER flings: Conditon 11a (A81758) fled on 2017-02-16, Conditon 11b purposes and each contractor will be required to report hiring statstcs (refer to NEB IR No. 1.24d) Conditon (A83554) fled on 2017-05-15, Conditon 12b (A83547) fled on 2017-05-15, and reported in on a monthly basis. Additonally, contractors will be required to include a monthly count of the Conditon 107 as fled with the CER: A88805 fled on 2017-12-19, A92602 fled on 2018-06-19, number of hires from the capacity inventory list and a running total of the hires from the capacity A96793 fled on 2018-12-18, C00069 fled on 2019-06-21, C03799 fled on 2019-12-19, C06916 fled inventory list. Trans Mountain will consult with the community and request aggregate informaton on 2020-06-19, C10456 fled on 2020-12-16. on capacity. 973 Indigenous Relatons Ermineskin Cree Naton, Trans Mountain will perform a capacity inventory for labour and skills in Aboriginal communites Natons IR No. Prior to Constructon Superseded by NEB 11, 12 Commitment captured in CER flings: Conditon 11a (A81758) fled on 2017-02-16, Conditon 11b Kelly Lake Cree Naton, associated with the Project. The community will be consulted to understand the training 1.1.5g Conditon (A83554) fled on 2017-05-15. Samson Cree Naton, Sucker requirements needed to develop job-ready candidates during constructon. Training programs may Creek First Naton, be identfed and coordinated. The Aboriginal capacity inventory data will be provided to Trans Whitefsh (Goodfsh) Lake Mountain’s contractors for hiring purposes. First Naton #128 1006 Indigenous Relatons Sto:lo Collectve Trans Mountain commits to contnue engagement with the members of the Sto:lo Collectve to August 11, 2014 Project Lifecycle In Progress Condton 96 demonstrates our ongoing engagement with the Stó:lō Collectve on topics including identfy trafc mitgaton measures related to constructon of the TMEP. Leter from Sto:lo trafc mitgaton measures. Proof of completon will be the Records of Engagement within Conditon Collectve to Trans 96. Mountain 1095 Indigenous Relatons NEB Trans Mountain commits to reportng any feedback received from Simpcw First Naton in the next NEB Cond IR No. Project Lifecycle Superseded by NEB 96, 97 NEB IR 56 was fled on September 2017; so the next Conditon 96 flings would have been: A88864 fling of Conditon 96 – Reports on Aboriginal Engagement. 56.1 Conditon fled on 2017-12-21, A92639 fled on 2018-06-21, A96940 fled on 2018-12-21, C00070 fled on 2019-06-21, C02363 fled on 2019-10-22 C03883 fled on 2019-12-23, C06946 fled on 2020-06-22, C11031 fled on 2021-01-19. 1585 Indigenous Relatons Sto:lo Collectve Trans Mountain will fle a Supplemental Traditonal Land and Resource Use Technical Report, Sto:lo Collectve Prior to Constructon Complete Supplemental Traditonal Land and Resource Use (TLRU) Technical Report (TDR) in Secton 4.4.4 including a list of issues raised by Sto:lo Collectve and responses from Trans Mountain. Atachment - Table [Filing ID: A3Z4Z2] includes a table of issues and concerns raised by Sto:lo Collectve and Trans 2d Mountain's response to these issues. 1611 Indigenous Relatons Sto:lo Collectve Trans Mountain is commited to hostng a series of workshops, as agreed upon by Trans Mountain Sto:lo Collectve Project Lifecycle In Progress Conditon 96 demonstrates our ongoing engagement with the Stó:lō Collectve on topics including and Sto:lo representatves for communites represented by the Sto:lo Collectve. Trans mountain will Recommendaton workshops for open conversaton between members of communites and Trans Mountain. Proof of structure the workshops to facilitate open conversaton between members of communites #2, #5, #12, #15, completon will be the Records of Engagement within Conditon 96. represented by Sto:lo Collectve, subject-mater experts and Trans Mountain representatves #16, #23, #24, #25, regarding many of the recommendatons included within this document and the potental impacts #28, #30, #31, #32, of the Project on Aboriginal rights, ttle and interests and their traditonal and cultural use of the #36, #42, #46, #47, land and marine environment. #48, #55, #60, #62, #64, #77

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1613 Indigenous Relatons Sto:lo Collectve In partnership with Sto:lo representatves, Trans Mountain commits to developing a mutually Sto:lo Collectve Project Lifecycle In Progress Condton 96 demonstrates our ongoing engagement with the Stó:lō Collectve on topics including agreeable process for contnued engagement. Recommendaton contnued engagement. Proof of completon will be the Records of Engagement within Conditon 96. #4, #64 1614 Indigenous Relatons Sto:lo Collectve Sto:lo representatves will be provided an opportunity to provide input on proposed locatons for Sto:lo Collectve Prior to Constructon Complete hydrostatc test water withdrawal and release. Recommendaton #6 1623 Indigenous Relatons Sto:lo Collectve Trans Mountain commits to discussing with Sto:lo funding for improvements to access and Sto:lo Collectve Project Lifecycle In Progress Condton 96 demonstrates our ongoing engagement with the Stó:lō Collectve on topics including infrastructure in support of fshing as determined by Sto:lo representatves. Recommendaton access and infrastructure. Commitment will be addressed by further engagemenet actvites to be #22 undertaken. Proof of completon will be the Records of Engagement within Conditon 96. 1624 Indigenous Relatons Sto:lo Collectve Trans Mountain commits to discussing funding for additonal vegetaton studies with the Sto:lo Sto:lo Collectve Prior to Constructon In Progress Condton 96 demonstrates our ongoing engagement with the Stó:lō Collectve on topics including representatves. Recommendaton funding for vegetaton Studies. Commitment will be addressed by further engagemenet actvites to #23, #27, #62 be undertaken. Proof of completon will be the Records of Engagement within Conditon 96. 1633 Indigenous Relatons Sto:lo Collectve Trans Mountain is open to discussing a Sto:lo-specifc constructon communicaton plan or a Sto:lo Collectve Project Lifecycle In Progress Conditon 96 demonstrates our ongoing engagement with the Stó:lō Collectve on topics including community liaison. Recommendaton constructon communicaton plans or a community liaison. Commitment will be addressed by #44 further engagement actvites to be undertaken. Proof of completon will be the Records of Engagement within Conditon 96. A Community Liaison was hired as per a confdental agreement that has been reached, further details available upon request. 1639 Indigenous Relatons Sto:lo Collectve Trans Mountain welcomes the opportunity to discuss funding for cultural programs and events. Sto:lo Collectve Project Lifecycle In Progress Condton 96 demonstrates our ongoing engagement with the Stó:lō Collectve on topics including Recommendaton funding for cultural programs. Commitment will be addressed by further engagement actvites to #58, #59 be undertaken. Proof of completon will be the Records of Engagement within Conditon 96. 1640 Indigenous Relatons Sto:lo Collectve Trans Mountain will engage with Sto:lo representatves prior to commencing constructon in regards Sto:lo Collectve Project Lifecycle In Progress Condton 96 demonstrates our ongoing engagement with the Stó:lō Collectve on topics including to the Trafc and Access Control Management Plan (TACMP), within Spread 6. The following Recommendaton Trafc and Access Control Management Plan. Commitment will be addressed by further potental issues will be discussed: a) routes will be included for constructon access. b) bussing or #60, #66, #82 engagemenet actvites to be undertaken. Proof of completon will be the Records of Engagement other worker transport management for constructon workers - To be determined upon completon within Conditon 96. of the detailed engineering and constructon, to be part of the proposed TACMP. c) trafc supervision plans during constructon to identfy any access routes that have higher than predicted trafc and/or delays - Refer to b. d) acceptable driving behavior in S’ólh Téméxw - Minimum standards will be part of the TACMP for personnel driving Project related vehicles which will be a part of the TACMP or the Health and Safety Management Plan for the Project. The Health and Safety Management Plan will be fled with the NEB as per Draf Conditon 38, 90 Days prior to the start of constructon. e) schedules for the trucking of heavy loads to avoid peak trafc tmes and heavily- used intersectons. - Refer to b. f) the TACMP (or sub-plans as developed by the Contractor selected for constructon) will prohibit no-constructon parking/staging areas along key access routes to Big houses, boat launches, trail heads near bathing sites. 1642 Indigenous Relatons Sto:lo Collectve Trans Mountain will discuss additonal surveys or commitments with employment or procurement Sto:lo Collectve Project Lifecycle In Progress Condton 96 demonstrates our ongoing engagement with the Stó:lō Collectve on topics including with Sto:lo representatves. Recommendaton Employment and Procurement. Commitment will be addressed by further engagemenet actvites to #62 be undertaken. Proof of completon will be the Records of Engagement within Conditon 96. 1643 Indigenous Relatons Sto:lo Collectve Trans Mountain is commited to working with Sto:lo representatves to minimize scheduling conficts Sto:lo Collectve Prior to Constructon Complete and requests that key dates are provided to Trans Mountain six months prior to constructon for the Recommendaton inclusion in fnal constructon planning. #65 1645 Indigenous Relatons Sto:lo Collectve As part of developing the capacity inventory, Trans Mountain is commited to working with Sto:lo Sto:lo Collectve Prior to Constructon Superseded by NEB 11, 12 Commitment captured in CER flings: Conditon 11a (A81758) fled on 2017-02-16, Conditon 11b representatves to gather community-level informaton on Aboriginal labour force (as outlined in the Recommendaton Conditon (A83554) fled on 2017-05-15, Conditon 12b (A83547) fled on 2017-05-15. leter shared by Trans Mountain on February 12, 2015) and business capacity for Sto:lo communites #67, #68 (as outlined in the leter shared by Trans Mountain on February 5, 2015). Trans Mountain will share with Sto:lo the full details of the Sto:lo-specifc skill and business capacity informaton collected as part of the capacity inventory in hopes it can assist Sto:lo communites in longer-term economic development initatves unrelated to the Project. Data for the Project-wide capacity inventory will contnue to be collected through the constructon planning and constructon phase. An update to the capacity inventory will be fled with the NEB, and made available to Sto:lo representatves, at least 90 days prior to commencing constructon. 1650 Indigenous Relatons Sto:lo Collectve As noted in secton 8.4.11 of the Socio-Economic Management Plan in Appendix C of Volume 6B Sto:lo Collectve During Constructon Superseded by NEB 13 (Filing ID A3S2S3), Trans Mountain is commited to establishing a process by which community Recommendaton Conditon members can raise complaints or concerns related to Project actvites or workers. Trans Mountain #74 will ensure this process includes protocols for tmely follow-up by Trans Mountain and/or its Contractors and transparent issue resoluton. Trans Mountain will communicate this process to communites. 1655 Indigenous Relatons Sto:lo Collectve Trans Mountain has commited to communicatng with local health authorites, including the First Sto:lo Collectve During Constructon In Progress Proof of Completon will be the Records of Engagement. Natons Health Authority, on the tming of the Project, duraton of stay in the local community, Recommendaton expected number of people coming into the area and onsite health care plans. #79, #80, #81 1656 Indigenous Relatons Sto:lo Collectve Trans Mountain is commited to contnued engagement with Sto:lo representatves to discuss Sto:lo Collectve Project Lifecycle In Progress Conditon 96 demonstrates our ongoing engagement with the Stó:lō Collectve on topics including funding opportunites related to policing. Recommendaton funding opportunites related to Policing. Commitment will be addressed by further engagement #83 actvites to be undertaken. Proof of completon will be the Records of Engagement within Conditon 96.

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1659 Indigenous Relatons Sto:lo Collectve Trans Mountain can commit to engagement with the Sto:lo Collectve prior to commencing Sto:lo Collectve Prior to Constructon In Progress Conditon 96 demonstrates our ongoing engagement with the Stó:lō Collectve on topics including constructon to discuss any potental issues in regard to the Constructon Safety Manuals. Recommendaton Constructon and Safety Issues. Proof of completon will be in the Records of Engagement. #87 1660 Indigenous Relatons Sto:lo Collectve 90 days prior to the start of constructon, Trans Mountain will provide copies of the schedule of Sto:lo Collectve Prior to Constructon Complete constructon actvites within S’ólh Téméxw, the Environmental Alignment Sheets; and the Plan, Recommendaton Profle and Book or Reference (PPBoR) that defnes the constructon footprint. #88 1661 Indigenous Relatons Sto:lo Collectve Trans Mountain welcomes the opportunity to discuss the establishment of a scholarship program for Sto:lo Collectve Project Lifecycle In Progress Conditon 96 demonstrates our ongoing engagement with the Stó:lō Collectve on topics including Sto:lo students. Recommendaton the establishment of a scholarship program. Commitment will be addressed by further engagement #89 actvites to be undertaken. Proof of completon will be the Records of Engagement within Conditon 96. 1699 Indigenous Relatons Sto:lo Collectve Trans Mountain is commited to contnued engagement with Stó:lō to discuss the Project and the Reply Evidence 7.15 Project Lifecycle In Progress Conditon 96 demonstrates our ongoing engagement with the Stó:lō Collectve on topics including potental Project related efects on Stó:lō; specifc to the Environmental Protecton Plan and Stó:lo Collectve - Environmental protecton plan and mitgaton measures. Commitment will be addressed by further mitgaton measures utlized to minimize Project related efects as identfed in the Integrated p10 - line 38 engagement actvites to be undertaken. Proof of completon will be the Records of engagement Cultural Assessment Report. within Conditon 96. 1882 Indigenous Relatons NEB Trans Mountain will create an online employment communicatons tool where potental workers Applicaton Volume Prior to Constructon Complete who are interested in employment can register to receive regular updates on employment 5B, 7-43. opportunites. 2117 Indigenous Relatons NEB Trans Mountain is commited to a legacy of educaton and training opportunites, partcularly for NEB IR No. 3.036 Prior to Constructon Complete those in Alberta and BC, so individuals may directly beneft from employment in the many trades and professions needed to build and operate a pipeline. Trans Mountain is developing a program to provide educatonal funding to support students in the trades, technology and environmental programs related to the pipeline industry. 2149 Indigenous Relatons NEB Trans Mountain intends to fle Consultaton Update #3, including a summary of all consultaton NEB IR No. 2.009a Prior to Constructon Complete actvites between May 1, 2014 and October 31, 2014 in Q4 2014 or Q1 2015. 2452 Indigenous Relatons North Shore NOPE, Tsleil- With respect to Environment Canada Recommendaton 3-2 (Filing ID A4L8Y6), Trans Mountain Reply Evidence Prior to Constructon In Progress Commitment will be addressed by further engagement actvites to be undertaken. Proof of Waututh Naton commits to discussing the request with the interested partes such as Tsleil-Waututh Naton and 33.3.6 Air Quality - completon will be the Records of engagement within Conditon 96. members from groups such as NS NOPE who also reside on the North Shore and expressed interest p33-38 line 1; in ambient air quality measurements. Reconsideraton Report - pp 393-394 2899 Indigenous Relatons NEB Trans Mountain is commited to provide any further engagement log updates and future informaton Consultaton Update Prior to Constructon Complete Proof of completon is Conditon 96 flings. requests (IR’s) for any First Naton on Vancouver Fraser Port Authority DBA Port Metro Vancouver No. 3 - Part 1, Table (PMV) list [First Natons with traditonal territories that intersect the specifc project area where the 1.22, NEB IR No. proposed Westridge Terminal enhancements/in water works will be located and, First Natons with 3.005a Atachment traditonal territories that intersect the navigatonal route within PMV jurisdicton]. 1-Part 2 2942 Indigenous Relatons Mets Naton of Alberta Trans Mountain is commited to maximizing Aboriginal employment on the constructon of the Gunn Méts Local 55 Prior to Constructon Superseded by NEB 11, 12 Commitment captured in CER flings: Conditon 11a (A81758) fled on 2017-02-16, Conditon 11b Gunn Mets Local 55 Project. IR No. 2.34, Gunn Conditon (A83554) fled on 2017-05-15, Conditon 12b (A83547) fled on 2017-05-15. Méts Local 55 IR No. 2.36 2995 Indigenous Relatons Kwantlen First Naton, NEB Trans Mountain will initate an Aboriginal Employment and Training Program to support increased NEB IR No. 3.008a- Prior to Constructon Superseded by NEB 11, 12 Commitment captured in CER flings: Conditon 11a (A81758) fled on 2017-02-16, Conditon 11b access to Aboriginal employment opportunites on the Project. Atachment Conditon (A83554) fled on 2017-05-15, Conditon 12b (A83547) fled on 2017-05-15. 1Kwantlen FN IR No. 1.02.3 3208 Indigenous Relatons Sto:lo Collectve Trans Mountain will fle a Supplemental Traditonal Land and Resource Use Technical Report, Sto:lo Collectve Prior to Constructon Complete Supplemental Traditonal Land and Resource Use (TLRU) Technical Report (TDR) in Secton 4.4.4 including a list of issues raised by Sto:lo Collectve and responses from Trans Mountain. Atachment - Table [Filing ID: A3Z4Z2] includes a table of issues and concerns raised by Sto:lo Collectve and Trans 2d Mountain's response to these issues. 3209 Indigenous Relatons Sto:lo Collectve Trans Mountain will fle a Supplemental Traditonal Land and Resource Use Technical Report, Sto:lo Collectve Prior to Constructon Complete Supplemental Traditonal Land and Resource Use (TLRU) Technical Report (TDR) in Secton 4.4.4 including a list of issues raised by Sto:lo Collectve and responses from Trans Mountain. Atachment - Table [Filing ID: A3Z4Z2] includes a table of issues and concerns raised by Sto:lo Collectve and Trans 2d Mountain's response to these issues. 3213 Indigenous Relatons Horse Lake First Naton Trans Mountain will notfy Horse Lake First Naton of the constructon schedule in the vicinity of their Horse Lake FN IR No. Prior to Constructon Complete Commitment addressed in C96 CER Filing ID's include: A84533 fled on 2017-06-21, A88864 fled on community two weeks prior to the start of constructon within Spread 2. 2.3d 2017-12-21, A92639 fled on 2018-06-21, A96940 fled on 2018-12-21, C00070 fled on 2019-06-21, C02363 fled on 2019-10-22, C03883 fled on 2019-12-23, C06946 fled on 2020-06-22, C11031 fled on 2021-01-19. 3214 Indigenous Relatons Horse Lake First Naton Trans Mountain will notfy Horse Lake First Naton of the constructon schedule in the vicinity of their Horse Lake FN IR No. Prior to Constructon Complete Team Member sent Constructon Notce by email on July 20, 2020. community two weeks prior to the start of constructon for the Edson Transmission Line. 2.3d 3227 Indigenous Relatons Simpcw First Naton Trans Mountain will review the preliminary plot plans for the proposed new pump statons with the SIMPCW F N IR No. Prior to Constructon Complete Simpcw First Naton, upon their request, when the plot plans are available, antcipated by the end of 1.047b 2014.

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3586 Indigenous Relatons Sto:lo Collectve Trans Mountain is commited to the Trafc Mitgaton Measures as part of the Socio-Economic August 11, 2014 Prior to Constructon Complete Mitgaton and Enhancement measures outlined in the TMEP Facility Applicaton (Volume 6B, Leter from Sto:lo Secton 8.4.3, Appendix C). Trans Mountain will contnue engagement with Sto:lo on Collectve to Trans Recommendaton 66 of their August 11, 2014 leter to Trans Mountain, but this recommendaton Mountain requires Sto:lo representatves to identfy necessary, supportng informaton 6 months prior to constructon. 3591 Indigenous Relatons Sto:lo Collectve Trans Mountain will engage with Sto:lo representatves prior to commencing constructon in regards Sto:lo Collectve Prior to Constructon Complete to the Trafc and Access Control Management Plan (TACMP), within Spread 7. The following Recommendaton potental issues will be discussed: a) routes will be included for constructon access. b) bussing or #60, #66, #82 other worker transport management for constructon workers - To be determined upon completon of the detailed engineering and constructon, to be part of the proposed TACMP. c) trafc supervision plans during constructon to identfy any access routes that have higher than predicted trafc and/or delays - Refer to b. d) acceptable driving behaviour in S’ólh Téméxw - Minimum standards will be part of the TACMP for personnel driving Project related vehicles which will be a part of the TACMP or the Health and Safety Management Plan for the Project. The Health and Safety Management Plan will be fled with the NEB as per Draf Conditon 38, 90 Days prior to the start of constructon. e) schedules for the trucking of heavy loads to avoid peak trafc tmes and heavily- used intersectons. - Refer to b. f) the TACMP (or sub-plans as developed by the Contractor selected for constructon) will prohibit no-constructon parking/staging areas along key access routes to Big houses, boat launches, trailheads near bathing sites. 3592 Indigenous Relatons Sto:lo Collectve Trans Mountain will engage with Sto:lo representatves prior to commencing constructon to discuss Sto:lo Collectve Project Lifecycle In Progress Conditon 96 demonstrates our ongoing engagement with the Stó:lō Collectve on topics including any potental issues in regard to the Trafc and Access Control Management Plan (TACMP), at Recommendaton Trafc and Access Control Management Plan. Commitment will be addressed by further Westeridge Marine Terminal: a) Routes will be included for constructon access. b) Bussing or other #60, #66, #82 engagement actvites to be undertaken. Proof of completon will be the Records of engagement worker transport management for constructon workers - To be determined upon completon of the within Conditon 96. detailed engineering and constructon, to be part of the proposed TACMP. c) Trafc supervision plans during constructon to identfy any access routes that have higher than predicted trafc and/or delays - Refer to b. d) Acceptable driving behaviour in S’ólh Téméxw - Minimum standards will be part of the TACMP for personnel driving Project related vehicles which will be a part of the TACMP or the Health and Safety Management Plan for the Project. The Health and Safety Management Plan will be fled with the NEB as per Draf Conditon 38, 90 Days prior to the start of constructon. e) Schedules for the trucking of heavy loads to avoid peak trafc tmes and heavily-used intersectons. - Refer to b. f) The TACMP (or sub-plans as developed by the Contractor selected for constructon) will prohibit no-constructon parking/staging areas along key access routes to Big houses, boat launches, trailheads near bathing sites. 3595 Indigenous Relatons Sto:lo Collectve Trans Mountain can commit to engagement with the Sto:lo Collectve prior to commencing Sto:lo Collectve Prior to Constructon Superseded by NEB constructon to discuss any potental issues in regard to the Constructon Safety Manuals. Recommendaton Conditon #87 3849 Indigenous Relatons NEB Trans Mountain is commited to provide any further engagement log updates and future informaton Consultaton Update Prior to Constructon Complete Email from Vancouver Fraser Port Authority on March 29, 2018 indicatng commitment is complete. requests (IR’s) for any First Naton on Vancouver Fraser Port Authority DBA Port Metro Vancouver No. 3 - Part 1, Table (PMV) list [First Natons with traditonal territories that intersect the specifc project area where the 1.22, NEB IR No. proposed Westridge Terminal enhancements/in water works will be located and, First Natons with 3.005a-Atachment traditonal territories that intersect the navigatonal route within PMV jurisdicton]. 1-Part 2 3888 Indigenous Relatons NEB Trans Mountain commits to updatng the NEB on any feedback received on Conditon 56: Grizzly NEB Cond IR No. Project Lifecycle Superseded by NEB 96 Conditon 56 - Grizzly Bear Mitgaton Plan (A83058) was fled with the CER on 2017-05-01 and an Bear Mitgaton Plan in its next fling of Conditon 96 – Reports on Aboriginal Engagement – 26.8 Conditon update (A90913) was fled on 2018-03-28, so the next C96 flings would have been: A84533 fled on Constructon. 2017-06-21, A88864 fled on 2017-12-21, A92639 fled on 2018-06-21, A96940 fled on 2018-12-21, C00070 fled on 2019-06-21, C02363 fled on 2019-10-22, C03883 fled on 2019-12-23, C06946 fled on 2020-06-22, C11031 fled on 2021-01-19. 3889 Indigenous Relatons NEB Trans Mountain commits to updatng the NEB on any feedback received on Conditon 47: Access NEB Cond IR No. Project Lifecycle Superseded by NEB 96 Conditon 47 - Access Management Plan (A82635) was fled with the CER on 2017-04-13 and an Management Plan in its next fling of Conditon 96 – Reports on Aboriginal Engagement – 27.13 Conditon update (A90912) was fled on 2018-03-28, so the next C96 flings would have been: A84533 fled on Constructon. 2017-06-21, A88864 fled on 2017-12-21, A92639 fled on 2018-06-21, A96940 fled on 2018-12-21, C00070 fled on 2019-06-21, C02363 fled on 2019-10-22, C03883 fled on 2019-12-23, C06946 fled on 2020-06-22, C11031 fled on 2021-01-19. 3896 Indigenous Relatons NEB Trans Mountain commits to updatng the NEB on any feedback received on Conditon 44 Plans in its NEB Cond IR No. Project Lifecycle Superseded by NEB 96 Conditon 47 - Wildlife Species at Risk Mitgaton and Habitat Restoraton Plans (American badger next fling of Conditon 96 – Reports on Aboriginal Engagement – Constructon. 28.24 Conditon A83034-2, Townsend’s mole A83052-2, Pacifc water shrew A83045-2, Barn owl A83035-2, Western screech owl A83065-2, Williamson’s sapsucker/Lewis’s woodpecker A83061-2, Western ratlesnake/Great Basin, Gopher snake A83046-2, Great Basin spadefoot A83049-2, Oregon spoted frog A83060-2, Coastal giant salamander A83042-2 and Oregon forestsnail A83062-2) were fled with the CER on 2017-05-01. The next C96 flings would have been: A84533 fled on 2017-06-21, A88864 fled on 2017-12-21, A92639 fled on 2018-06-21, A96940 fled on 2018-12-21, C00070 fled on 2019-06-21, C02363 fled on 2019-10-22, C03883 fled on 2019-12-23, C06946 fled on 2020-06- 22, C11031 fled on 2021-01-19. 3901 Indigenous Relatons NEB Trans Mountain commits to updatng the NEB on any feedback received on the Conditon 71: NEB Cond IR No. Prior to Constructon Superseded by NEB 71 Conditon 71 - Riparian Habitat Management Plan (A83957) fled with the CER on 2017-05-31 and Riparian Habitat Management Plan in its next fling of Conditon 96 – Reports on Aboriginal 29.1 Conditon revised (A85807) on 2017-09-01. The next C96 flings would have been: A84533 fled on 2017-06-21, Engagement – Constructon. A88864 fled on 2017-12-21, A92639 fled on 2018-06-21, A96940 fled on 2018-12-21, C00070 fled on 2019-06-21 C02363 fled on 2019-10-22, C03883 fled on 2019-12-23, C06946 fled on 2020-06- 22, C11031 fled on 2021-01-19.

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3904 Indigenous Relatons NEB Trans Mountain commits to updatng the NEB on any feedback received on Conditon 79: Air NEB Cond IR No. Project Lifecycle Superseded by NEB 96 Conditon 79 - Air Emissions Management Plan for the Edmonton, Sumas and Burnaby Terminal Emissions Management Plan for the Edmonton, Sumas and Burnaby Terminals in its next fling of 32.1; NEB Cond IR Conditon (A84102) fled with the CER on 2017-06-01 and an Errata (C08441) was fled on 2020-09-08. The Conditon 96 – Reports on Aboriginal Engagement – Constructon. No. 32.2 next C96 flings would have been: A84533 fled on 2017-06-21, A88864 fled on 2017-12-21, A92639 fled on 2018-06-21, A96940 fled on 2018-12-21, C00070 fled on 2019-06-21, C02363 fled on 2019-10-22, C03883 fled on 2019-12-23, C06946 fled on 2020-06-22, C11031 fled on 2021-01-19. 3913 Indigenous Relatons NEB Trans Mountain commits to fling an updated summaries of its consultaton with Aboriginal groups NEB Cond IR No. Project Lifecycle Superseded by NEB 96 Conditon 79 - Air Emissions Management Plan for the Edmonton, Sumas and Burnaby Terminal on all ambient monitoring requirements, including the locaton of monitoring statons, in its next 32.4 Conditon (A84102) fled with the CER on 2017-06-01 and an Errata (C08441) was fled on 2020-09-08. The fling of Conditon 96 – Reports on Aboriginal Engagement – Constructon. next C96 flings would have been: A84533 fled on 2017-06-21, A88864 fled on 2017-12-21, A92639 fled on 2018-06-21, A96940 fled on 2018-12-21, C00070 fled on 2019-06-21, C02363 fled on 2019-10-22, C03883 fled on 2019-12-23, C06946 fled on 2020-06-22, C11031 fled on 2021-01-19. 3914 Indigenous Relatons NEB Trans Mountain commits to updatng the NEB on any feedback received on Conditon 76: Old NEB Cond IR No. Project Lifecycle Superseded by NEB 96 Conditon 76 - Old Growth Management Areas Mitgaton and Replacement Plan (A84120) was fled Growth Management Mitgaton and Replacement Plan in its next fling of Conditon 96 – Reports on 37.1 Conditon with the CER on 2017-06-01. The next C96 flings would have been: A84533 fled on 2017-06-21, Aboriginal Engagement – Constructon. A88864 fled on 2017-12-21, A92639 fled on 2018-06-21, A96940 fled on 2018-12-21, C00070 fled on 2019-06-21, C02363 fled on 2019-10-22, C03883 fled on 2019-12-23, C06946 fled on 2020-06- 22, C11031 fled on 2021-01-19. 3920 Indigenous Relatons NEB Trans Mountain commits to updatng the NEB on any feedback received on the Facilites NEB Cond IR No. Project Lifecycle Superseded by NEB 96 Conditon 78 - Facilites Environmental Protecton Plan (A84142 and A84148) was fled with the CER Environmental Protecton Plan (Conditon 78) in its next fling of Conditon 96 – Reports on 39.6 Conditon on 2017-06-01. A revision (A85826) was submited on 2017-09-05, and another revision Submission Aboriginal Engagement – Constructon. 1 (A86546) and Submission 2 (A86536) were submited to the CER on 2017-10-04. The next C96 flings would have been: A84533 fled on 2017-06-21, A88864 fled on 2017-12-21, A92639 fled on 2018-06-21, A96940 fled on 2018-12-21, C00070 fled on 2019-06-21, C02363 fled on 2019-10-22, C03883 fled on 2019-12-23, C06946 fled on 2020-06-22, C11031 fled on 2021-01-19. 3929 Indigenous Relatons NEB Trans Mountain commits to updatng the NEB on any feedback received on the Burnaby Mountain NEB Cond IR No. Project Lifecycle Superseded by NEB 96 Burnaby Mountain Tunnel EPP: Conditon 72 (g) requires a summary of consultatons with Tunnel Environmental Protecton Plan in its next fling of Conditon 96 – Reports on Aboriginal 40.17 Conditon Appropriate Government Authorites, potentally afected Aboriginal groups and afected Engagement – Constructon. landowners/tenants. Conditon 72 (A84106, A84111,A 84114, A84118, A84124, A84133, A84141, and A84143) was submited the the CER on 2017-06-01, and an Errata (A84337) was submited on 2017-06-12. The next C96 flings would have been: A84533 fled on 2017-06-21, A88864 fled on 2017-12-21, A92639 fled on 2018-06-21, A96940 fled on 2018-12-21, C00070 fled on 2019-06-21, C02363 fled on 2019-10-22, C03883 fled on 2019-12-23, C06946 fled on 2020-06-22, C11031 fled on 2021-01-19. 3944 Indigenous Relatons NEB Trans Mountain commits to updatng the NEB on any feedback received on the Environmental and NEB Cond IR No. Project Lifecycle Superseded by NEB 96 Conditon 60 - Environmental and socio-economic assessment - s.58 temporary constructon lands socio-economic assessment - s.58 temporary constructon lands and infrastructure (Conditon 60) in 42.2 Conditon and infrastructure (A84130) was submited the the CER on 2017-06-01, and a revision (A85798) was its next fling of Conditon 96 – Reports on Aboriginal Engagement – Constructon. submited on 2017-09-01. The next C96 flings would have been: A84533 fled on 2017-06-21, A88864 fled on 2017-12-21, A92639 fled on 2018-06-21, A96940 fled on 2018-12-21, C00070 fled on 2019-06-21, C02363 fled on 2019-10-22, C03883 fled on 2019-12-23, C06946 fled on 2020-06- 22, C11031 fled on 2021-01-19. 3960 Indigenous Relatons NEB Trans Mountain commits to updatng the NEB on any feedback received on the Traditonal Land Use NEB Cond IR No. Project Lifecycle Superseded by NEB 96 Conditon 97 - Traditonal Land Use (TLU) and Traditonal Marine Resource Use (TMRU) Investgaton and Traditonal Marine Resource Use Investgaton Report (Conditon 97) from Coldwater Indian 46.3 Conditon Report (A84461) was submited the the CER on 2017-06-16, and a revision (A85811) was submited Band, Cook’s Ferry Indian Band, Siska Indian Band and Boston Bar First Naton, Sucker Creek First on 2017-09-01. The next C96 flings would have been: A84533 fled on 2017-06-21, A88864 fled on Naton, Sunchild First Naton, Alexander First Naton and Shackan Indian Band in the next fling of 2017-12-21, A92639 fled on 2018-06-21, A96940 fled on 2018-12-21, C00070 fled on 2019-06-21, Conditon 96 – Reports on Aboriginal Engagement – Constructon. C02363 fled on 2019-10-22, C03883 fled on 2019-12-23, C06946 fled on 2020-06-22, C11031 fled on 2021-01-19 3975 Indigenous Relatons NEB Trans Mountain commits to updatng the NEB on any feedback received on the Pipeline NEB Cond IR No. Project Lifecycle Superseded by NEB 96 Conditon 72 - Pipeline Environmental Protecton Plan (A84106, A84111,A 84114, A84118, A84124, Environmental Protecton Plan in its next fling of Conditon 96 – Reports on Aboriginal Engagement 40.7 Conditon A84133, A84141, and A84143) was submited the the CER on 2017-06-01, and an Errata (A84337) – Constructon. was submited on 2017-06-12. The next C96 flings would have been: A84533 fled on 2017-06-21, A88864 fled on 2017-12-21, A92639 fled on 2018-06-21, A96940 fled on 2018-12-21, C00070 fled on 2019-06-21, C02363 fled on 2019-10-22, C03883 fled on 2019-12-23, C06946 fled on 2020-06- 22, C11031 fled on 2021-01-19. 4001 Indigenous Relatons NEB Trans Mountain commits to updatng the NEB on any feedback received on Conditon 73: Trafc NEB Cond IR No. Project Lifecycle Superseded by NEB 96 Conditon 73 - Trafc Control Plans for public roadways (A84149, A84150, and A84151) was Control Plans for Public Roadways in its next fling of Conditon 96 – Reports on Aboriginal 31.2b Conditon submited the the CER on 2017-06-01. The next C96 flings would have been: A84533 fled on 2017- Engagement – Constructon. 06-21, A88864 fled on 2017-12-21, A92639 fled on 2018-06-21, A96940 fled on 2018-12-21, C00070 fled on 2019-06-21, C02363 fled on 2019-10-22, C03883 fled on 2019-12-23, C06946 fled on 2020-06-22, C11031 fled on 2021-01-19. 4009 Indigenous Relatons NEB All Aboriginal Groups that expressed an interest or concern will be contacted 3 months prior to NEB IR No. 2.011c Prior to Constructon Complete clearing work to discuss how an opportunity could be developed for Salvageable Timber in their territory, within Spread 2. 4010 Indigenous Relatons NEB All Aboriginal Groups that expressed an interest or concern will be contacted 3 months prior to NEB IR No. 2.011c Prior to Constructon Complete clearing work to discuss how an opportunity could be developed for Salvageable Timber in their territory, within Spread 3. 4011 Indigenous Relatons NEB All Aboriginal Groups that expressed an interest or concern will be contacted 3 months prior to NEB IR No. 2.011c Prior to Constructon Complete clearing work to discuss how an opportunity could be developed for Salvageable Timber in their territory, within Spread 4. 4012 Indigenous Relatons NEB All Aboriginal Groups that expressed an interest or concern will be contacted 3 months prior to NEB IR No. 2.011c Prior to Constructon Complete clearing work to discuss how an opportunity could be developed for Salvageable Timber in their territory, within Spread 5A.

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4013 Indigenous Relatons NEB All Aboriginal Groups that expressed an interest or concern will be contacted 3 months prior to NEB IR No. 2.011c Prior to Constructon Complete clearing work to discuss how an opportunity could be developed for Salvageable Timber in their territory, within Spread 5B. 4014 Indigenous Relatons NEB All Aboriginal Groups that expressed an interest or concern will be contacted 3 months prior to NEB IR No. 2.011c Prior to Constructon In Progress Commitment will be addressed by further engagement actvites to be undertaken. Proof of clearing work to discuss how an opportunity could be developed for Salvageable Timber in their completon will be the Records of engagement within Conditon 96. territory, within Spread 6. 4488 Indigenous Relatons Ts’elxweyeqw Tribe Trans Mountain commits to involving Ts’elxwéyeqw Tribe Management Ltd (TTML) in constructon CER Conditon IR No. During Constructon In Progress Conditon 96 demonstrates our ongoing engagement with the Ts’elxweyeqw Tribe Management Management Limited monitoring. 1.b.1 Limited (TTML) on topics including constructon monitoring. Commitment will be addressed by (TTML) further engagement actvites to be undertaken. Proof of completon will be the Records of engagement within Conditon 96. 4534 Indigenous Relatons Landowner - Semá:th First Trans Mountain commits to working with the STSA and Sto:lo communites to fully understand the Provincial Permitng Project Lifecycle In Progress Naton (Semá:th) potental impacts of the expansion project on Sto:lo interests and work collaboratvely to address Engagement, adverse impacts in a respectul, reasonable and tmely manner. Writen Evidence, Appendix H, pg. 69 27 Lands and ROW City of Abbotsford Trans Mountain will develop and implement a restoraton plan for Ledgeview Golf Course. City of Abbotsford IR Project Lifecycle In Progress TM and Landowner have developed a restoraton plan to address post restoraton requirements. An No.1.25b.i agreement including restoraton plan is antcipated to be executed between the company and landowner. 82 Lands and ROW Burnaby Teachers' Trans Mountain Pipeline ULC can guarantee that no school will be expropriated in order to construct BTA IR No. 1.1 Prior to Constructon Superseded by The CER Act does not provide authority to pipeline companies to expropriate lands, nor do they Associaton the Trans Mountain Expansion Project. Legal/Regulatory have the authority to grant an expropriaton. Secton 321 of the CER Act states "... a company may Requirement acquire or lease lands for a pipeline under a land acquisiton or lease agreement entered into between the company and the owner of the lands or, in the absence of such an agreement, in accordance with this Part". 155 Lands and ROW City of Burnaby Trans Mountain will make agreements with and abide by all permit requirements from the Canadian City Burnaby IR No. Prior to Constructon Superseded by Transport Canada, Standards Respectng Pipeline Crossings Under Railways TC E-10, Secton 3. Natonal Railway and the Burlington Northern Santa Fe Railway. 1.43.02s Legal/Regulatory Requirement 209 Lands and ROW NEB In communites where routng may deviate from the existng Trans Mountain Pipeline (TMPL) right- Applicaton Volume Project Lifecycle In Progress Where TMEP deviates from TMPL ROW all routng consideratons are incorporated into proposed of-way, Trans Mountain will discuss and apply routng consideratons and decision-making criteria in 5B, 3-6. new routes/greenfeld areas. TMEP Land representatves consult with all directly impacted discussions with local stakeholders. Trans Mountain will inform landowners and lessees of the route landowners and lessees to discuss route feasibility and specifc impacts to the lands including locaton and constructon schedule, to allow sufcient tme to plan and implement alternatve land constructon methodology and tming. TMEP negotates in good faith to acquire the necessary land use decisions. rights from landowners and lessees to support constructon and ongoing operatons of the pipeline through project lifecycle. 372 Lands and ROW City of Abbotsford Should Ledgeview Golf Course experience lost revenue as a result of the constructon of the Trans City of Abbotsford IR Prior to Operatons Superseded by CER Act, Secton 314. Mountain Expansion Project, Trans Mountain would intend to employ ‘actual loss’ compensaton for No. 1.25b Legal/Regulatory any reductons in golf course revenue caused by the constructon and operaton of the pipeline. Requirement 374 Lands and ROW C.G.L.A.P. - Collaboratve For the Chilliwack to Surrey porton of the Fraser Valley, Trans Mountain will bear the costs CGLAP IR No. 2.7h During Constructon Superseded by Secton 314 of the CER Act. Group of Landowners associated with the removal of soil, rocks, and debris extracted during any HDD or boring/tunneling Legal/Regulatory Afected by Pipelines actvites on landowner property, including the costs for permitng of the removal that are directly Requirement atributable to the Project. 378 Lands and ROW Brian Kingman The Kingman’s are to be ofered the Right of First Refusal on the logs cut on their property or Kingman B IR No. Prior to Constructon Complete Landowner has entered into a voluntary acquisiton agreement which addresses tmber equivalent compensaton. The tree stumps from cut trees will be ground up by a grinder or hauled 1.3b compensaton. Details regarding tree removal have been added to the constructon line list. away from the property. The details of which trees are to be removed will be determined in a site visit between Landowner and the Trans Mountain Land Agent and documented on constructon Line List provided to contractor. 381 Lands and ROW NEB Trans Mountain confrms that all necessary third party crossing agreements will be obtained prior to NEB IR No. 2.016 Prior to Constructon Superseded by NEB 103 Commitment addressed by Conditon 103, Utlity Crossings, Filing ID C01792, Secton (All), Pages constructon. Conditon (All). 385 Lands and ROW NEB Trans Mountain will work with local landowners in the Fraser Valley to determine agricultural Technical Update Prior to Constructon In Progress Trans Mountain has has worked with landowners in the Fraser Valley to ensure an appropriate practces, including deep sub soiling, to determine depth of cover requirements. No. 1 and depth of cover is incorporated into constructon engineered plans to mitgate potental impacts Consultaton Update from deep soil tlling and agricultural practces. In agricultural land, Trans Mountain has adopted a No. 2 - Part 2 Table standard depth of cover of 1.2 meters. Depth of cover of 1.2 m is indicated in the constructon 1.6.3-1 alignment sheets. 602 Lands and ROW C.G.L.A.P. - Collaboratve Trans Mountain will provide Landowners within Spread 5B with a schedule of work to be conducted CGLAP IR No. 2.9d Prior to Constructon In Progress A schedule of work will be provided to the landowner at least 21 days in advance of the start of Group of Landowners on their lands, at least 21 days in advance of the start of constructon. constructon. Afected by Pipelines 603 Lands and ROW C.G.L.A.P. - Collaboratve Trans Mountain commits that its land agents working on the Trans Mountain Expansion Project CGLAP IR No. 2.9g Prior to Operatons In Progress Trans Mountain confrms that all current Land Agents have completed the Canadian Energy Pipeline Group of Landowners (TMEP) will complete the Canadian Energy Pipeline Associaton Land Agent Program. Associaton Land Agent Program and have obtained proof of completon from all agents. New hires Afected by Pipelines will be required to complete the program and provide proof of completon. 641 Lands and ROW City of Coquitlam Trans Mountain will commit to paying for the costs associated with relocaton or alteraton of City of Coquitlam IR Prior to Constructon Superseded by Commitment addressed in secton 314 of the CER Act. existng Methane collecton system if it is required to do so for Trans Mountain Expansion Project No. 2.D.5a Legal/Regulatory (TMEP) constructon. Requirement

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675 Lands and ROW City of Abbotsford, City of Trans Mountain is prepared to reimburse municipalites for reasonable costs and staf tme required City North Project Lifecycle In Progress Municipalites will be ofered reimbursement for reasonable costs and staf tme required to North Vancouver, Fraser to monitor and assist Trans Mountain workers in constructng the Project on municipal lands and in Vancouver IR No. monitor and assist in constructng the Project on municipal lands and the cost recovery schedule Valley Regional District, NEB locatons where municipal services are located (either parallel to or crossed by Project). 2.3.12.a; City of will be included in agreements with the municipality. Abbotsford IR No. 2.3.09a; NEB IR No. 6.19; This commitment was made since the close of intervenor’s evidence in this proceeding: Trans Mountain Leter to Mayor Braun, City of Abbotsford, July 20, 2015. 732 Lands and ROW City of Richmond Should residual impacts or damages remain from constructon, or damages result from operatons of City of Richmond IR During Operatons Superseded by Commitment addressed in Secton 314 of the CER Act. the pipeline, Trans Mountain would provide commensurate compensaton for damages directly No. 2.2.11 Legal/Regulatory related to and caused by the constructon or operatons of the pipeline. Requirement 733 Lands and ROW City of Burnaby, City of Trans Mountain would intend to employ ‘actual loss’ compensaton for any reductons in revenue City of Richmond IR Project Lifecycle Superseded by Commitment addressed in Secton 314 of the CER Act. Richmond caused by the constructon and operaton of the pipeline. No. 2.2.11City Legal/Regulatory Burnaby IR No. Requirement 1.35.01b 834 Lands and ROW Strata NW 313 Trans Mountain will have full-tme land agents available throughout constructon to liaise between Strata NW313 IR No. Prior to Operatons In Progress A Land Agent Liaison is assigned to each spread. Landowners have been provided with land agent landowners, constructon management and contractors. 2.03 contact informaton should any issues or concerns arise. Additonally, Landowners are made aware of the Landowner Hotline that is maintained by the Project as an alternate method to reach company land representatves. 871 Lands and ROW Cheam First Naton and Trans Mountain is commited to responding respectully to and making all reasonable eforts to Cheam and Project Lifecycle Superseded by Commitment addressed in Secton 314 of the CER Act. Chawathil First Naton achieve cooperatve setlements on all claims contemplated within the NEB Act and our land tenure Chawathil FN IR No. Legal/Regulatory contracts. 2(b).3.3.b Requirement 893 Lands and ROW Shxw’owhámel First Naton If the Board determines that the alternatve corridors are appropriate and recommends approval of SFN IR No. 2.1.1b Prior to Constructon Superseded by Commitment addressed in Secton 199 of the CER Act. the preferred corridor along with the limited alternatve corridors, Trans Mountain will commit to Legal/Regulatory fling with the Board three months in advance of commencing constructon its fnal determinaton in Requirement relaton to the alternatve corridors identfed below. 978 Lands and ROW Canadian Parks and Subject to regulatory approval by the Natonal Energy Board, further notfcaton to all directly CPAWS IR No. 1.1.2, Prior to Constructon Superseded by NEB 72, 78, 81 Distributon list, confrmaton of date and method of notfcaton is tracked by spread. Wilderness Society - BC afected tenure and dispositon holders will take place in advance of constructon actvity. Applicaton Volume Conditon Chapter, NEB 3C, secton 1.3.1, page 3C-4 1437 Lands and ROW C.G.L.A.P. - Collaboratve Trans Mountain is endeavouring to include within the constructon workspace agreement sufcient CGLAP IR No. 2.9i Prior to Constructon Complete The applicable temporary working space agreement and related negotatons have been framed in Group of Landowners tme to construct and restore the land following constructon. Should those actvites extend beyond this manner. Afected by Pipelines the agreed upon schedule and require land use beyond that term specifed in the agreement, Trans Mountain will negotate additonal compensaton for the additonal term required. 1445 Lands and ROW NEB Trans Mountain will only install an additonal pipeline or pipelines in the Statutory Right-of-Way Applicaton Volume Prior to Constructon Superseded by Commitment addressed in Sectons 320 - 324 of the CER Act. (SRW) Area with the consent and agreement of the Owner, or, in the absence of such consent and 2, appendix E, page Legal/Regulatory agreement, in accordance with all authorizatons and determinatons, including with respect to any 6 of 8 Requirement additonal compensaton payable, made under the Act. 1512 Lands and ROW Fraser Valley Regional Trans Mountain will provide compensaton for crop loss for a period based upon the soil and crop FVRD IR No. 1.29a Project Lifecycle Superseded by Commitment addressed in Secton 314 of the CER Act. District type, and antcipated duraton for soil and crop productvity to return to pre-constructon conditon. Legal/Regulatory Requirement 1574 Lands and ROW Cedar Springs Strata The detailed engineering and fnalized dimensions of the temporary workspace are antcipated to be Cedar Springs Strata Prior to Constructon Complete Landowner has entered into a voluntary acquisiton agreement wherein the project footprint has Corporaton available for review by the Cedar Springs Strata during the second quarter of 2015. Given the Corporaton, been agreed. developed nature of the landscaping within Cedar Springs, Trans Mountain will endeavour to use Preliminary (P) IR constructon practces that reduce the width of the constructon right-of-way within the Strata as No. 1.02a much as is feasible, given constructon and safety requirements. 1603 Lands and ROW NEB Trans Mountain will initate a post-constructon dialogue with landowners and leaseholders along Applicaton Volume During Operatons Scoping A post-constructon meetng will be held with landowners and occupants (when required) where a the pipeline right-of-way afer fnal clean-up to address and/or resolve any relevant issues. 6A, 9-4. review of landowner commitments are closed out and a release is signed between landowner and Constructon-related issues that are raised during ongoing operaton will be addressed by Trans company to verify commitments are complete. An agreement with landowner and TMEP will be Mountain. Trans Mountain will maintain a database to track landowner and leaseholder consultaton arranged to setle any outstanding commitments from constructon that require future obligatons informaton. to be managed throughout operatons and maintenance. 1649 Lands and ROW Sto:lo Collectve Should businesses experience lost revenue as a direct result of the constructon or operatons of the Sto:lo Collectve Project Lifecycle Superseded by Commitment addressed in Secton 314 of the CER Act. Trans Mountain Expansion Project, Trans Mountain would intend to employ ‘actual loss’ Recommendaton Legal/Regulatory compensaton for any reductons in revenue caused by the constructon and operaton of the #73 Requirement pipeline.

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1662 Lands and ROW Gerald Stroud Trans Mountain is commited to contnuing to engage with Mr. Stroud from constructon through to NEB Route Hearing Prior to Operatons In Progress Landowner constructon commitments have been added to the constructon line list. TMEP land operatons, including about safety and emergency management, and will provide informaton as Transcript Seg 1 & 2 representatves will contnue to engage with the landowners throughout the project lifecycle. A required. Vol 5 para 4468NEB post-constructon meetng will be held with landowners and occupants (when required) where a Route Hearing review of landowner commitments are closed out and a release is signed between landowner and Decision Seg 1 & 2 company to verify commitments are complete. An agreement with landowner and TMEP will be Gerald Stroud Sec arranged to setle any outstanding commitments from constructon that require future obligatons 2.1.4 to be managed throughout operatons and maintenance. 1664 Lands and ROW City of Abbotsford Trans Mountain commits to having a land agent available during Sandy Hill direct pipe installaton to May 31, 2017 TWG During Constructon In Progress A Land Agent Liaison is assigned to each spread. Landowners have been provided with land agent address any constructon-related concerns with directly impacted landowners. Meetng contact informaton should any issues or concerns arise. Additonally, Landowners are made aware of the Landowner Hotline that is maintained by the Project as an alternate method to reach company land representatves. 1674 Lands and ROW Landowner - Shawn Berry Trans Mountain is commited to 1. limitng tree removal over the drill path to under brushing; 2. only NEB Route Hearing Project Lifecycle In Progress Landowner constructon commitments have been added to the constructon line list. TMEP land removing trees which are hindering the alignment of the steering cable; 3. replacing fencing that TMEP Evidence Seg representatves will contnue to engage with the landowners throughout the project lifecycle. A was there at the tme of constructon with new fencing; 4. discussing with the Mr. and Mrs. Berry, 1 & 2 Shawn post-constructon meetng will be held with landowners and occupants (when required) where a any fencing requirements to limit or maintain (local) access; 5. including on the line list any resultng BerryNEB Route review of landowner commitments are closed out and a release is signed between landowner and fencing requirements; 6. using natve grass seed and/or shrub or tree plantng for reclamaton of Hearing Transcript company to verify commitments are complete. An agreement with landowner and TMEP will be cleared areas; 7. no burning of tmber on the property; 8. implementng its Environmental Seg 1 & 2 Vol 3 para arranged to setle any outstanding commitments from constructon that require future obligatons Protecton Plan (EPP) including mitgatons for topsoil salvage and reclamaton, weed control, and 795,873,937,1096- to be managed throughout operatons and maintenance. noise; 9. providing Mr. and Mrs. Berry with the EPP and other relevant management plans, and 1100,1129,1130NEB meetng with them to discuss these plans; and 10. contnuing to engage with Mr. and Mrs. Berry. Route Hearing Decision Seg 1 & 2 ShawnBerry Sec 2.2 1676 Lands and ROW Landowner - Stuart Palk and Trans Mountain is commited to 1. minimizing tree clearing, provided that the regulatory safety and NEB Route Hearing Project Lifecycle In Progress Landowner constructon commitments have been added to the constructon line list. TMEP land Wendy Bailer Palk pipeline integrity requirements can be satsfed, this includes preserving the trees over the new TMEP Evidence Seg representatves will contnue to engage with the landowners throughout the project lifecycle. A pipeline horizontal directonal drill path; 2. adding Mr. Palk and Ms. Bailer Palk's water well to the 1 & 2 StuartPalk & post-constructon meetng will be held with landowners and occupants (when required) where a Environmental Alignment Sheets; 3. In the event the horizontal directonal drill crossing fails, Trans WendyBailerPalkNEB review of landowner commitments are closed out and a release is signed between landowner and Mountain commits to consultng with Mr. Palk and Ms. Bailer Palk when drafing the contngency Route Hearing company to verify commitments are complete. An agreement with landowner and TMEP will be plan for the conventonal open cut constructon; 4. providing Mr. Palk and Ms. Bailer Palk with the Transcript Seg 1 & 2 arranged to setle any outstanding commitments from constructon that require future obligatons Environmental Protecton Plan and other relevant management plans, and meetng with them to Vol 3 para to be managed throughout operatons and maintenance. discuss these plans; and 5. contnuing to engage with Mr. Palk and Ms. Bailer Palk. 1451,1966- 1972,2169- 2170,2213- 2214,2217NEB Route Hearing Decision Seg 1 & 2 Stuart Palk & Wendy Bailer Palk Sec 3 1677 Lands and ROW Landowner - Erich Ploentzke Trans Mountain is commited to 1. reclaiming the lands to a stable conditon as well as implementng NEB Route Hearing Project Lifecycle In Progress Landowner constructon commitments have been added to the constructon line list. TMEP land special reclamaton measures (e.g., tree replacement) as set out in the Reclamaton Management TMEP Evidence Seg representatves will contnue to engage with the landowners throughout the project lifecycle. A Plan at select locatons such as watercourses and wetlands; 2. a three day turnaround from 1 & 2 Erich post-constructon meetng will be held with landowners and occupants (when required) where a notfcaton to fagging of the pipeline, when Mr. Ploentzke proposes work in the prescribed area; 3. Ploentzke; NEB review of landowner commitments are closed out and a release is signed between landowner and using only organic fertlizers and adding this informaton to the line list; 4. having an environmental Route Hearing company to verify commitments are complete. An agreement with landowner and TMEP will be inspector present during the constructon actvites to keep soils separate; 5. completng a segment- Transcript Seg 1 & 2 arranged to setle any outstanding commitments from constructon that require future obligatons by-segment report on restoraton eforts, issues faced during constructon and any issues that need Vol 5 para to be managed throughout operatons and maintenance. to be resolved, as part of post-constructon monitoring; 6. working to conserve topsoil by proper 3934,3948- separaton as outlined in the Environmental Protecton Plan; 7. constructng in the winter startng in 3953,3981,4156,4157 November (with possible top soil stripping in October) and ending by May, with best eforts for Route Hearing reclamaton done in tme for the golf course opening; 8. a watering operaton using water trucks if Decision Seg 1 2 sod applicaton is used during reclamaton; 9. using the stovepipe constructon method to minimize Erich Ploentzke Sec impacts on the adjacent lands and to safely install the pipeline between two existng lines; 10. 3 considering the use of temporary fencing to keep horses or livestock out during reclamaton; 11. sharing of any soil studies, the Environmental Protecton Plan, or the line list with the landwner; and 12. providing Mr. Ploentzke with the direct name and number of someone he can talk to about his issues with reclamaton or otherwise. 1678 Lands and ROW Landowner - Erich Ploentzke Trans Mountain is commited to working with the landowner on 1. constructon planning; 2. NEB Route Hearing Project Lifecycle In Progress Landowner constructon commitments have been added to the constructon line list. TMEP land minimizing the removal of trees including within the temporary constructon workspace, to the TMEP Evidence Seg representatves will contnue to engage with the landowners throughout the project lifecycle. A extent practcable; 3. establishing access plans; 4. scheduling constructon actvites to minimize 1 & 2 Erich post-constructon meetng will be held with landowners and occupants (when required) where a impacts to the golf course including maintaining access to the south storage area; and 5. reclamaton PloentzkeNEB Route review of landowner commitments are closed out and a release is signed between landowner and planning. Hearing Transcript company to verify commitments are complete. An agreement with landowner and TMEP will be Seg 1 & 2 Vol 5 para arranged to setle any outstanding commitments from constructon that require future obligatons 3889,4007NEB to be managed throughout operatons and maintenance. Route Hearing Decision Seg 1 & 2 ErichPloentzke Sec 3

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1682 Lands and ROW Landowner - Dale / Lorna Trans Mountain is commited to 1. stripping topsoil in non-frozen conditons; 2. looking at optons to NEB Route Hearing Project Lifecycle In Progress Trans Mountain has entered into a voluntary agreement with landowners and have completed a Plummer and Carly Morin relocate the log deck/mult-use workspace to a new locaton in consultaton with the Plummer and Transcript Seg 1 & 2 pre-constructon report to address constructon related work standards. Constructon commitments Morin; 3. using temporary fencing if requested by the Plummer or Morin; 4. taking steps to repair Vol 6 para 5434- have bee added to the constructon line list and provided to project executon team to be added to the relatonship between Trans Mountain and the Plummer; 5. being fexible in the locaton of 5435NEB Route work plan. temporary or extra workspace, such as the identfed log deck, to accommodate planned Hearing Transcript development; and 6. working with the landowners on operatonal issues. Seg 1 & 2 Vol 7 para 5976,5999- 6002,6067,6096NEB Route Hearing Decision Seg 1 & 2 Plummer & Morin Sec 2.2NEB Route Hearing Argument Seg 1 & 2 Plummer & Morin para 49,63 1694 Lands and ROW NEB With respect to Tract 2497, Trans Mountain commits to reportng on the status of consultaton with Route Variance Prior to Constructon No Longer This commitment arose out of the Sumas Tank Farm Variance applicaton which has since been the owners of Tract 2797, and whether there are any concerns, what those concerns are, and what Sumas Tank Farm IR Applicable decided and Order issued. Trans Mountain will do to address such concerns, no later than May 26, 2017. NEB IR 1.1b 1734 Lands and ROW City of Chilliwack, NEB Given that the Chilliwack BC Hydro route realignment is very close to existng houses, Trans Route Variance Prior to Constructon Scoping A Land Agent Liaison is assigned to each spread. Landowners have been provided with land agent Mountain commits to 1) providing a dedicated Land Representatve and a Community Liaison; 2) Chilliwack BC Hydro contact informaton should any issues or concerns arise. Additonally, Landowners are made aware conductng baseline monitoring of residental infrastructure to ensure that there’s no impacts pre- TMEP Response of the Landowner Hotline that is maintained by the Project as an alternate method to reach and post-constructon; 3) developing a site specifc work plan that will identfy all the roles and dated June 6 company land representatves. Trans Mountain will conduct pre and post constructon baseline responsibilites and the specifc requirements and restrictons for each area including a work plan for 2017Route Variance monitoring and develop site specifc work plans. communicaton of the constructon schedule, the impacts of constructon, what to expect, and what, Chilliwack BC Hydro if any, special requirements landowners would like to see in place. Transcript Vol3 para1999-2000 1745 Lands and ROW Landowner - Keelan Trans Mountain is commitment to: 1. reclaiming the Lands to a stable conditon as well as Detailed Route Reply Project Lifecycle In Progress Landowner constructon commitments have been added to the constructon line list. TMEP land Peterson implementng special reclamaton measures such as tree replacement; 2. respectng potental Evidence; Transcript representatves will contnue to engage with the landowners throughout the project lifecycle. A constructon impacts on trees, and working with landowners to minimize the amount of tree Volume 8 para 7959; post-constructon meetng will be held with landowners and occupants (when required) where a clearing required for Project constructon; 3. contnuing to work with the landowner to mitgate tree Decision Seg 1 & 2 review of landowner commitments are closed out and a release is signed between landowner and optons; 4. contnuing to engage with the landowner in the interest of achieving a mutually Keelan Peterson Sec company to verify commitments are complete. An agreement with landowner and TMEP will be benefcial soluton to the issues on the property; 5. working with Mr. Peterson to optmize the 2.3Detailed Route arranged to setle any outstanding commitments from constructon that require future obligatons workspace locaton on his land: to meet constructability needs; minimize impacts, including the Reply Evidence; to be managed throughout operatons and maintenance. amount of tree clearing required for constructon; and, as stated by Trans Mountain, to hopefully Transcript Volume 8 reach a mutually benefcial soluton to issues on the property; 6. situatng the constructon footprint para 7959; Decision to avoid damage to any fencing to the extent possible. If fencing needs to be removed any damaged Seg 1 & 2 Keelan sectons of the fence will be rebuilt or replaced. If any permanent survey pins are disturbed or Peterson Sec damaged during constructon they will be replaced during the legal survey completed at the end of 2.3Detailed Route project constructon; 7. situatng the constructon footprint to avoid damage to fencing; 8. rebuilding Reply Evidence; or replacing any damaged sectons of the fence as necessary; 9. installing constructon fencing along Transcript Volume 8 the north boundary of the windrowed topsoil pile to create a barrier to prevent access by children to para 7959; Decision the pipeline right-of-way during constructon; 10. installing constructon fencing along the north Seg 1 & 2 Keelan boundary of the windrowed topsoil pile to create a barrier to prevent access by children to the Peterson Sec pipeline right-of-way during constructon; 11. fully restoring the right-of-way back to its pre- 2.3Detailed Route constructon grade and profle, and if it could not, to inform the landowner and work with him to Reply Evidence; develop a plan to ensure slops are replaced to a stable conditon; 12. coming back with the exact Transcript Volume 8 slope of the hill on the areas where the workspaces are located and to contnue to engage with the para 7959; Decision landowner through the constructon and restoraton phases of the projects; 13. replacing trees Seg 1 & 2 Keelan removed from the temporary workspace during constructon with similar trees or compensatng the Peterson Sec 2.3 landowner; 14. avoiding removal of the shelter belt of trees along the west side of Range Road 20 in its horizontal drill bore. 1746 Lands and ROW Landowner - John Trans Mountain is commited to 1. working with the landowners to ensure that the landowners' Transcript Volume 2 Project Lifecycle In Progress Landowner constructon commitments have been added to the constructon line list. TMEP land Richardson, Landowner - driveway will not be damaged by the passage of constructon vehicles and that the landowners will para 1083; representatves will contnue to engage with the landowners throughout the project lifecycle. A Robert McMahon be able to maintain access to their property throughout constructon; 2. working with the landowner Transcript Volume 2 post-constructon meetng will be held with landowners and occupants (when required) where a to optmize temporary workspace and explore opportunites to use the cleared area to the west of paras 1426 1427 review of landowner commitments are closed out and a release is signed between landowner and Hornet Creek to reduced the need for tree-clearing. 1570 company to verify commitments are complete. An agreement with landowner and TMEP will be arranged to setle any outstanding commitments from constructon that require future obligatons to be managed throughout operatons and maintenance. 1748 Lands and ROW Landowner - Fraser Heights Trans Mountain commits to evaluatng and replacing ornamental trees or shelterbelts in select NEB Detailed Route During Constructon Scoping Estmated Completon Timeline: Q4 2023 Community Associaton areas; re-plantng with larger nursery stock and slow-growing conifers. Writen Evidence Seg 7; NEB Route- Hearing Decision Seg 7 Fraser Heights Community Associaton Sec 3

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1750 Lands and ROW Landowner - Min Guo Tans Mountain commits to 1. notfying Ms. Guo where work is required 24 hours a day and seven NEB Detailed Route During Constructon Complete Commitment addressed in confdental agreement with the landowner. days a week; 2. limitng the noise to the minimal actvites required to maintain schedule; 3. fencing Hearing Decision Seg of all temporary workspace during constructon; 4. contnuing consultaton with Ms. Guo; 5. 7 Min Guo Sec 2.4 relocatng Ms. Guo if necessary. (Noise Management Plan included at Appendix C of Writen Evidence states: Temporary relocaton of specifc residents if mitgaton not successful per Noise Management Plan); 6. following applicable noise bylaws; 7. using sound walls/barriers. 1758 Lands and ROW Landowner - Underhill Trans Mountain commits to contnuing to engage with Underhill and the potentally afected tenants NEB Route Hearing Project Lifecycle In Progress Trans Mountain is developing in consultaton with the City of Surrey a Natural Areas Plantng Plan Lands Ltd to identfy further measures that may address their access concerns. Decision Seg 7 which prescribes plantng of larger stock, denser plantng and specifc species selecton for these UnderhillLandsLtd areas. This plan is inclusive of the Fraser Heights area. Sec 3 1759 Lands and ROW Landowner - Underhill Trans Mountain commits to 1. utlizing a phased constructon staging approach to minimize NEB Route Hearing During Constructon In Progress Lands Ltd temporary impacts to building access; 2. preparing an excavaton plan utlizing shored-trench DecisionSeg 7 constructon including a vibraton monitoring plan, designed by a geotechnical engineer, for work Underhill Lands Ltd close to the Underhill Building; 3. working weekends and nights where feasible, and subject to City Sec 3 of Burnaby noise bylaws. 1763 Lands and ROW City of Burnaby Trans Mountain commits to providing alternate access for the Burnaby Mountain Urban Trail where NEB Route Hearing Project Lifecycle In Progress Landowner constructon commitments have been added to the constructon line list. TMEP land it would be crossed and temporarily unavailable; working with Burnaby to narrow the cleared areas Decision , Seg 7 representatves will contnue to engage with the landowners throughout the project lifecycle. A for the access and the access road for operatons for the Shellmont locaton. CityofBurnaby, Sec 9 post-constructon meetng will be held with landowners and occupants (when required) where a review of landowner commitments are closed out and a release is signed between landowner and company to verify commitments are complete. An agreement with landowner and TMEP will be arranged to setle any outstanding commitments from constructon that require future obligatons to be managed throughout operatons and maintenance. 1857 Lands and ROW NEB Trans Mountain will develop a Line List including landowner contact informaton and listng of all NEB IR No. 1.14a, Prior to Constructon Complete Copy of line list can be provided. commitments and agreed upon special constructon methods for each property, within Spread 1. Applicaton, Volume 3C and Volume 2, Secton 5.0 1868 Lands and ROW NEB Trans Mountain will develop a Land Program Executon Plan that includes review of Line List to NEB IR No. 1.14a, Project Lifecycle Complete Trans Mountain has developed a Land Program Executon Plan that includes review of Line Lists to determine commitments to landowners and ensure commitments are met. Applicaton, Volume determine commitments to landowners and ensure commitments are met. 3C and Volume 2, Secton 5.1 1890 Lands and ROW NEB Trans Mountain will monitor and record the completon of commitments to landowners within NEB IR No. 1.14a, During Constructon In Progress Trans Mountain confrms that it has a process/system in place to monitor and record completon of Spread 1 by the project land program administraton. Applicaton, Volume commitments to landowners. A post-constructon meetng will be held with landowners and 3C and Volume 2, occupants (when required) where a review of landowner commitments are closed out and a release Secton 5.3 is signed between landowner and company to verify commitments are complete. An agreement with landowner and TMEP will be arranged to setle any outstanding commitments from constructon that require future obligatons to be managed throughout operatons and maintenance. 1901 Lands and ROW NEB Trans Mountain will ensure the plans and procedures are followed to ensure appropriate notfcaton NEB IR No. 1.14a, Project Lifecycle In Progress Trans Mountain confrms that the Land Program Executon Plan encompasses plans and procedures is made to each landowner, as required, based on the specifc needs of their agricultural land use, Applicaton, Volume to address landowner specifc notfcaton requirements. are incorporated into the Land Program Executon Plan. 3C and Volume 2, Secton 5.4 1916 Lands and ROW NEB Trans Mountain will contact the following prior to clearing and constructon actvites, and provide CPAWS IR No. 1.1.2; Prior to Constructon No Longer Commitment no longer applicable. There is no afected partes in Spread 1. maps and schedule informaton to enable them to select alternate areas for their actvites: trappers Applicaton Volume Applicable of afected registered fur management areas and traplines, guide outiters in relevant wildlife 5B, 7-108; management units, and commercial recreaton tenure holders. (Spread 1) Applicaton Volume 5D 6-1 1918 Lands and ROW BC Ministry of Forests Lands Trans Mountain will notfy all afected mineral, aggregate and oil and gas tenure/dispositon holders BC MFLNRO P-IR No. Prior to Constructon Complete Distributon list to be provided with confrmaton of date and method of notfcaton. and Natural Resource before constructon to coordinate planned actvites and secure agreements, as necessary. 1.14 Operatons (MFLNRO) 1928 Lands and ROW Sto:lo Collectve Trans Mountain will provide compensaton, considering various forms, to private land and property Sto:lo Collectve Project Lifecycle Superseded by Commitment addressed in Secton 314 of the CER Act. owners according to established industry protocols where losses or damages are proven. Recommendaton Legal/Regulatory #73 Requirement 2950 Lands and ROW Brian Kingman Trans Mountain will ensure fnal alignment of the proposed pipeline route considers the large cedar Kingman B IR No. Prior to Constructon Complete Landowner has entered into a voluntary acquisiton agreement wherein the project footprint has trees, and opportunites to narrow or align the right-of-way will be investgated and considered with 1.3a been agreed. the landowner. 3058 Lands and ROW NEB For site preparaton, Trans Mountain will ensure tmber and brush disposal optons will be subject to Pre-Applicaton During Constructon In Progress Trans Mountain is entering into agreements with landowners to address tmber compensaton and agreements with landowners and appropriate government authorites. Project Descripton p brush disposal methods. 18

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3127 Lands and ROW NEB Trans Mountain will have procedures in place to ensure that irrigaton water is not interrupted and Revised Final Project Lifecycle In Progress TMEP will atempt to work with the landowner and document in the preconstructon report has commited to working with Yarrow Ecovillage in advance of constructon to develop a strategy to Argument s. 7.2.1.2 procedures to mitgate impacts to irrigaton resultng from constructon actvites. TMEP land ensure that temporary irrigaton lines are installed and permanent irrigaton lines are re-established p236 representatves are commited to working with Yarrow Ecovillage to ensure mitgaton is in place to during and afer constructon. address irrigaton concerns. Trans Mountain notes that it is obligated pursuant to secton 314 of the CER Act to do as litle damage as possible during the course of pipeline constructon. Trans Mountain also notes its obligaton to restore the Pipeline ROW Area and Temporary Workspace Area to a conditon that is consistent with the current land use pursuant to secton 21 of the Onshore Pipeline Regulatons. 3128 Lands and ROW NEB In regards to nursery operatons, Trans Mountain has commited to providing ample pre- Revised Final Prior to Constructon In Progress Distributon list to be provided with confrmaton of date and method of notfcaton. constructon notce to nursery operators so that the nursery can prepare for possible disruptons in Argument s. 7.2.1.2 irrigaton, drainage and water recycling systems. p235 3496 Lands and ROW NEB Trans Mountain will work with local landowners in the Fraser Valley to determine agricultural Technical Update Project Lifecycle In Progress Trans Mountain has has worked with landowners in the Fraser Valley to ensure an appropriate practces, including deep sub soiling, to determine depth of cover requirements. No. 1 and depth of cover is incorporated into constructon engineered plans to mitgate potental impacts Consultaton Update from deep soil tlling and agricultural practces. In agricultural land, Trans Mountain has adopted a No. 2 - Part 2 Table standard depth of cover of 1.2 meters. Depth of cover of 1.2 m is indicated in the constructon 1.6.3-1 alignment sheets. 3640 Lands and ROW Davis LLP Trans Mountain would work with Nicola Ranch to minimize disturbance to hay producton Non-Regulatory Project Lifecycle Superseded by Addressed in secton 314 of CER Act. operatons and would compensate the landowner where necessary. Commitment Legal/Regulatory Requirement 3691 Lands and ROW City of Abbotsford Trans Mountain will preserve a large cotonwood adjacent western boundary of golf course if it is Non-Regulatory Prior to Constructon Scoping Landowner constructon commitments have been added to the constructon line list. TMEP land not on the Trans Mountain ROW and does not pose a safety concern. Commitment representatves will contnue to engage with the landowners throughout the project lifecycle. A post-constructon meetng will be held with landowners and occupants (when required) where a review of landowner commitments are closed out and a release is signed between landowner and company to verify commitments are complete. An agreement with landowner and TMEP will be arranged to setle any outstanding commitments from constructon that require future obligatons to be managed throughout operatons and maintenance. 3743 Lands and ROW Frolek Catle Co. Ltd Trans Mountain commits to washing UTVs each tme feld crews leave or enter the property. Special Non-Regulatory During Constructon Superseded by NEB 73 Commitment addressed in Biosecurity Management Plan, Filing ID A90966-8, Conditon 72, Pipeline atenton should be paid to underneath the UTV’s. Commitment Conditon Environmental Protecton Plan, Secton 2.5 of Volume 6 Environmental Management Plans, page 2. 3810 Lands and ROW Workshop Partcipants Trans Mountain will provide chicken farmers with advance notfcaton of constructon to minimize Non-Regulatory Prior to Constructon In Progress Trans Mountain has identfed directly afected chicken farms and will work with farmers to provide sensory disturbance to birds. Commitment advance notfcaton of constructon actvites in order to minimize sensory disturbance to birds. 3832 Lands and ROW Sto:lo Collectve Should businesses experience lost revenue as a direct result of the constructon or operatons of the Sto:lo Collectve Project Lifecycle Superseded by Commitment addressed in Secton 314 of the CER Act. Trans Mountain Expansion Project, Trans Mountain would intend to employ ‘actual loss’ Recommendaton Legal/Regulatory compensaton for any reductons in revenue caused by the constructon and operaton of the #73 Requirement pipeline. 3833 Lands and ROW Sto:lo Collectve Should businesses experience lost revenue as a direct result of the constructon or operatons of the Sto:lo Collectve During Constructon Superseded by Commitment addressed in Secton 314 of the CER Act. Trans Mountain Expansion Project, Trans Mountain would intend to employ ‘actual loss’ Recommendaton Legal/Regulatory compensaton for any reductons in revenue caused by the constructon and operaton of the #73 Requirement pipeline. 3845 Lands and ROW Township of Langley Details of all crossing of Township of Langley infrastructure will be formalized in crossing Langley IR No. 1.12d Prior to Constructon Superseded by NEB 113 Commitment addressed by Conditon 103, Filing ID C01792, Utlity Crossings, Secton (All). agreements. Conditon 3985 Lands and ROW NEB Trans Mountain will develop a Line List including landowner contact informaton and listng of all NEB IR No. 1.14a, Project Lifecycle Complete TMEP has a constructon line list for each constructon spread; the line lists are managed internally commitments and agreed upon special constructon methods for each property within Spread 2. Applicaton, Volume by land team and land management system; constructon line lists are provided to project executon 3C and Volume 2, team as well as the applicable GCC prior to constructon to ensure commitments and landowner Secton 5.0 specifc constructon methods and requirements are communicated and implemented. 3986 Lands and ROW NEB Trans Mountain will develop a Line List including landowner contact informaton and listng of all NEB IR No. 1.14a, Prior to Constructon Complete TMEP has a constructon line list for each constructon spread; the line lists are managed internally commitments and agreed upon special constructon methods for each property within Spread 3. Applicaton, Volume by land team and land management system; constructon line lists are provided to project executon 3C and Volume 2, team as well as the applicable GCC prior to constructon to ensure commitments and landowner Secton 5.0 specifc constructon methods and requirements are communicated and implemented. 3987 Lands and ROW NEB Trans Mountain will develop a Line List including landowner contact informaton and listng of all NEB IR No. 1.14a, Prior to Constructon Complete TMEP has a constructon line list for each constructon spread; the line lists are managed internally commitments and agreed upon special constructon methods for each property within Spread 4. Applicaton, Volume by land team and land management system; constructon line lists are provided to project executon 3C and Volume 2, team as well as the applicable GCC prior to constructon to ensure commitments and landowner Secton 5.0 specifc constructon methods and requirements are communicated and implemented. 3988 Lands and ROW NEB Trans Mountain will develop a Line List including landowner contact informaton and listng of all NEB IR No. 1.14a, Project Lifecycle Complete TMEP has a constructon line list for each constructon spread; the line lists are managed internally commitments and agreed upon special constructon methods for each property within Spread 5A. Applicaton, Volume by land team and land management system; constructon line lists are provided to project executon 3C and Volume 2, team as well as the applicable GCC prior to constructon to ensure commitments and landowner Secton 5.0 specifc constructon methods and requirements are communicated and implemented. 3989 Lands and ROW NEB Trans Mountain will develop a Line List including landowner contact informaton and listng of all NEB IR No. 1.14a, Prior to Constructon Complete TMEP has a constructon line list for each constructon spread; the line lists are managed internally commitments and agreed upon special constructon methods for each property within Spread 5B. Applicaton, Volume by land team and land management system; constructon line lists are provided to project executon 3C and Volume 2, team as well as the applicable GCC prior to constructon to ensure commitments and landowner Secton 5.0 specifc constructon methods and requirements are communicated and implemented.

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3990 Lands and ROW NEB Trans Mountain will develop a Line List including landowner contact informaton and listng of all NEB IR No. 1.14a, Project Lifecycle Complete TMEP has a constructon line list for each constructon spread; the line lists are managed internally commitments and agreed upon special constructon methods for each property within Spread 6. Applicaton, Volume by land team and land management system; constructon line lists are provided to project executon 3C and Volume 2, team as well as the applicable GCC prior to constructon to ensure commitments and landowner Secton 5.0 specifc constructon methods and requirements are communicated and implemented. 3991 Lands and ROW NEB Trans Mountain will develop a Line List including landowner contact informaton and listng of all NEB IR No. 1.14a, Prior to Constructon Complete TMEP has a constructon line list for each constructon spread; the line lists are managed internally commitments and agreed upon special constructon methods for each property within Spread 7. Applicaton, Volume by land team and land management system; constructon line lists are provided to project executon 3C and Volume 2, team as well as the applicable GCC prior to constructon to ensure commitments and landowner Secton 5.0 specifc constructon methods and requirements are communicated and implemented. 3999 Lands and ROW C.G.L.A.P. - Collaboratve Trans Mountain will provide Landowners within Spread 6 with a schedule of work to be conducted CGLAP IR No. 2.9d Prior to Constructon In Progress A schedule of work will be provided to the landowner at least 21 days in advance of the start of Group of Landowners on their lands, at least 21 days in advance of the start of constructon. constructon. Afected by Pipelines 4000 Lands and ROW C.G.L.A.P. - Collaboratve Trans Mountain will provide Landowners within Spread 7 with a schedule of work to be conducted CGLAP IR No. 2.9d Prior to Constructon In Progress A schedule of work will be provided to the landowner at least 21 days in advance of the start of Group of Landowners on their lands, at least 21 days in advance of the start of constructon. constructon. Afected by Pipelines 4495 Lands and ROW Landowner - Litle Fort Trans Mountain commits to working with the Litle Fort Herefords 1) to ensure the irrigaton system Detailed Route Reply Project Lifecycle In Progress Trans Mountain has entered into voluntary agreements with the landowner. Trans Mountain Land Herefords remains operatonal throughout constructon. 2) to ensure impacts to their operatons are limited to Evidence, Transcript Representatves have engaged with the Landowner to address all constructon related concerns and the extent practcable, including impacts to pasture and irrigaton 3) to engage with Litle Fort Volume 1 (para 75), requests. The agreed upon requests have been incorporated into spread constructon work plans, Herefords to address their concerns through mitgaton steps such as fencing of the constructon Transcript Volume 1 and have been captured on the Project Constructon Line List. Trans Mountain Land will contnue to footprint, constructng during winter and maintaining access to the lands not impacted by the (paras 127 - 129), engage and work with the landowner throughout the Project to ensure concerns and mitgatons are constructon footprint 4) to winter constructon to minimize or limit the impacts to the extent Transcript Volume 1 addressed. possible 5) to include any change to workspace or reductons in workspace in the as-built drawings (para 304); Decision, 6) to using fve-strand barbed wire fencing 7) to tming cleanup operatons to try to minimize Transcript Volume 1 impacts on the irrigaton system 8) to employing a smaller constructon crew for the narrow (para 304); Decision, segment of the Project where the landowner seasonally pens its bulls to reduce the constructon Transcript Volume 1 footprint in that locaton. 9) to engage with Litle Fort Herefords regarding the concept of an (para 825), alternatve pasture 10) to contnue to engage with Litle Fort Herefords in developing plans to limit Transcript Volume 1 the impact on its operatons. (paras 829, 862), Transcript Volume 1 (paras 74, 863), Transcript Volume 1 (para 929) 4497 Lands and ROW Landowner - 1054408 BC Trans Mountain commits to: 1) engaging and working with Landowner Mark Steele, 1054408 BC Ltd., Writen Evidence; Project Lifecycle In Progress Landowner constructon commitments have been added to the constructon line list. TMEP land Ltd. regarding optons for re-confguring temporary workspace, where practcable 2) working with the Transcript Volume 4 representatves will contnue to engage with the landowners throughout the project lifecycle. A landowner regarding permanent road crossings, road layout and reconfguraton of the workspace to (para 2300); post-constructon meetng will be held with landowners and occupants (when required) where a minimize the impacts on the development, to the extent possible 3) engaging and working with the Transcript Volume 4 review of landowner commitments are closed out and a release is signed between landowner and Landowner regarding establishing access plans and scheduling constructon actvites to minimize (para 2715), company to verify commitments are complete. An agreement with landowner and TMEP will be the Project's impacts on the residental development and on the Landowner's access road and Transcript Volume 4 arranged to setle any outstanding commitments from constructon that require future obligatons access to its lands, to the extent practcable 4) restrictng access on the constructon footprint only (para 3254); to be managed throughout operatons and maintenance. during the constructon period 5) developing a Trafc Management Plan, including signage, to Decision; Filing ID enable safe access onto, and egress from, the site 6) installing the pipeline at a depth that will allow A93284 the additonal fll above it. 7) cooperatng with the Landowner in providing proximity and crossing permits, if required, to accommodate future development of its lands during operatons. 4503 Lands and ROW Landowner - John Trans Mountain commits to working with the landowner to only clear trees to the extent warranted Detailed Route Project Lifecycle In Progress Landowner constructon commitments have been added to the constructon line list. TMEP land Richardson, Landowner - to safely construct the Project, to limit the potental for terrain instability and erosion, and to Writen Evidence – representatves will contnue to engage with the landowners throughout the project lifecycle. A Robert McMahon consider any inputs in reclamaton. Richardson and post-constructon meetng will be held with landowners and occupants (when required) where a McMahon (para 27) review of landowner commitments are closed out and a release is signed between landowner and Filing ID A89109), company to verify commitments are complete. An agreement with landowner and TMEP will be Trans Mountain arranged to setle any outstanding commitments from constructon that require future obligatons Detailed Route to be managed throughout operatons and maintenance. Hearings - Transcript - Volume 2 - MH- 078-2017(1339) Filing ID A90447, NEB Decision - Richardson and McMahon (p 9) Filing ID A92764 4504 Lands and ROW Landowner - Nestlé Waters In keeping with its regulatory obligatons to minimize impacts to the extent practcable, Trans Trans Mountain Project Lifecycle In Progress A voluntary acquisiton agreement is antcipated to be completed with the landowner in due course. Canada Inc. Mountain commits to contnue working with the landowner to establish access plans, and to Pipeline ULC – schedule constructon actvites that minimize impacts to the Lands and the Landowner’s operatons Detailed Route to the extent practcable. Writen Evidence (para 27) – Nestle Waters Canada (A6A9D1)

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4506 Lands and ROW NEB Trans Mountain will monitor and record the completon of commitments to landowners within NEB IR No. 1.14a, During Constructon In Progress Trans Mountain has a process/system in place to monitor and record completon of commitments to Spread 2 by the project land program administraton. Applicaton, Volume landowners. A post-constructon meetng will be held with landowners and occupants (when 3C and Volume 2, required) where a review of landowner commitments are closed out and a release is signed Secton 5.3 between landowner and company to verify commitments are complete. An agreement with landowner and TMEP will be arranged to setle any outstanding commitments from constructon that require future obligatons to be managed throughout operatons and maintenance. 4508 Lands and ROW NEB Trans Mountain will monitor and record the completon of commitments to landowners within NEB IR No. 1.14a, During Constructon In Progress Trans Mountain has a process/system in place to monitor and record completon of commitments to Spread 3 by the project land program administraton. Applicaton, Volume landowners. A post-constructon meetng will be held with landowners and occupants (when 3C and Volume 2, required) where a review of landowner commitments are closed out and a release is signed Secton 5.3 between landowner and company to verify commitments are complete. An agreement with landowner and TMEP will be arranged to setle any outstanding commitments from constructon that require future obligatons to be managed throughout operatons and maintenance. 4509 Lands and ROW NEB Trans Mountain will monitor and record the completon of commitments to landowners within NEB IR No. 1.14a, During Constructon In Progress Trans Mountain has a process/system in place to monitor and record completon of commitments to Spread 4A by the project land program administraton. Applicaton, Volume landowners. A post-constructon meetng will be held with landowners and occupants (when 3C and Volume 2, required) where a review of landowner commitments are closed out and a release is signed Secton 5.3 between landowner and company to verify commitments are complete. An agreement with landowner and TMEP will be arranged to setle any outstanding commitments from constructon that require future obligatons to be managed throughout operatons and maintenance. 4510 Lands and ROW NEB Trans Mountain will monitor and record the completon of commitments to landowners within NEB IR No. 1.14a, During Constructon In Progress Trans Mountain has a process/system in place to monitor and record completon of commitments to Spread 4B by the project land program administraton. Applicaton, Volume landowners. A post-constructon meetng will be held with landowners and occupants (when 3C and Volume 2, required) where a review of landowner commitments are closed out and a release is signed Secton 5.3 between landowner and company to verify commitments are complete. An agreement with landowner and TMEP will be arranged to setle any outstanding commitments from constructon that require future obligatons to be managed throughout operatons and maintenance. 4511 Lands and ROW NEB Trans Mountain will monitor and record the completon of commitments to landowners within NEB IR No. 1.14a, During Constructon In Progress Trans Mountain has a process/system in place to monitor and record completon of commitments to Spread 5A by the project land program administraton. Applicaton, Volume landowners. A post-constructon meetng will be held with landowners and occupants (when 3C and Volume 2, required) where a review of landowner commitments are closed out and a release is signed Secton 5.3 between landowner and company to verify commitments are complete. An agreement with landowner and TMEP will be arranged to setle any outstanding commitments from constructon that require future obligatons to be managed throughout operatons and maintenance. 4512 Lands and ROW NEB Trans Mountain will monitor and record the completon of commitments to landowners within NEB IR No. 1.14a, During Constructon In Progress Trans Mountain has a process/system in place to monitor and record completon of commitments to Spread 5B by the project land program administraton. Applicaton, Volume landowners. A post-constructon meetng will be held with landowners and occupants (when 3C and Volume 2, required) where a review of landowner commitments are closed out and a release is signed Secton 5.3 between landowner and company to verify commitments are complete. An agreement with landowner and TMEP will be arranged to setle any outstanding commitments from constructon that require future obligatons to be managed throughout operatons and maintenance. 4513 Lands and ROW NEB Trans Mountain will monitor and record the completon of commitments to landowners within NEB IR No. 1.14a, During Constructon In Progress Trans Mountain has a process/system in place to monitor and record completon of commitments to Spread 6 by the project land program administraton. Applicaton, Volume landowners. A post-constructon meetng will be held with landowners and occupants (when 3C and Volume 2, required) where a review of landowner commitments are closed out and a release is signed Secton 5.3 between landowner and company to verify commitments are complete. An agreement with landowner and TMEP will be arranged to setle any outstanding commitments from constructon that require future obligatons to be managed throughout operatons and maintenance. 4514 Lands and ROW NEB Trans Mountain will monitor and record the completon of commitments to landowners within NEB IR No. 1.14a, During Constructon In Progress Trans Mountain has a process/system in place to monitor and record completon of commitments to Spread 7 by the project land program administraton. Applicaton, Volume landowners. A post-constructon meetng will be held with landowners and occupants (when 3C and Volume 2, required) where a review of landowner commitments are closed out and a release is signed Secton 5.3 between landowner and company to verify commitments are complete. An agreement with landowner and TMEP will be arranged to setle any outstanding commitments from constructon that require future obligatons to be managed throughout operatons and maintenance. 4522 Lands and ROW Landowner - Hugh David Trans Mountain commits to engaging with the Landowner to gain access to the Lands and to address Detailed Route Project Lifecycle In Progress Trans Mountain Land has met with Landowners and arranged access to Land to collect feld data to Gray, Barbara Ann Gray the Landowner’s concerns. Hearing, Writen support the compilaton of a Arborist Report and Site Specifc Reclamaton Plan. The report is Evidence (para 23). currently being generated and will be reviewed with the Landowners once complete. Land Acquisiton documents will be further reviewed with landowner, and Trans Mountain will atempt to come to a voluntary agreement with Landowner. 4523 Lands and ROW Landowner - Hugh David Trans Mountain commits to making best eforts to protect two Western red cedar trees that are Detailed Route During Constructon In Progress Trans Mountain Land has met with Landowners and arranged access to Land to collect feld data to Gray, Barbara Ann Gray located along the edge of the temporary workspace area on the southwest side of the Lands, and Hearing, CER IR No. support the compilaton of a Arborist Report and Site Specifc Reclamaton Plan. The report is maintain the vegetatve bufer on the southwest corner of the Lands. 1.2 currently being generated and will be reviewed with the Landowners once complete. The Arborist Report and Site Specifc Reclamaton Plan addresses the request to protect the Two Western Red Cedars and the vegetatve bufer on the SW corner of the Lands. 4524 Lands and ROW Landowner - Hugh David Prior to commencing tree clearing actvites on the Lands, Trans Mountain commits to conductng a Detailed Route Prior to Constructon In Progress Trans Mountain Land has met with Landowners and arranged access to Land to collect feld data to Gray, Barbara Ann Gray detailed tree assessment and provide an arborist report that will document the number, species, Hearing, CER IR No.1 support the compilaton of a Arborist Report and Site Specifc Reclamaton Plan. The report is age, size, health and value of all trees proposed to be removed from the treed area and walking currently being generated and will be reviewed with the Landowners once complete. The Arborist path. Trans Mountain will develop a site-specifc reclamaton (replantng) plan (“Site-Specifc Report and Site Specifc Reclamaton Plan addresses the request to protect the Two Western Red Reclamaton Plan”) aimed at providing a functonally equivalent forest area as is present on the Cedars and the vegetatve bufer on the SW corner of the Lands. Lands.

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4529 Lands and ROW Landowner - Redwoods Golf Constructon has been scheduled during the winter months as much as possible to minimize peak Detailed Route During Constructon In Progress TM is contnuing to consult with the landowner in conjuncton with the project executon team to Course Ltd. (Redwoods) customer utlizaton of the golf course. Trans Mountain commits to engaging with the Landowner Hearing, Reply coordinate constructon schedules with low season of golf course usage to minimize impacts on prior to and throughout the constructon process to further modify the schedule as much as Evidence (para 123) business operatons where practcable. A voluntary acquisiton agreement is antcipated to be practcable to minimize impacts on the Landowner’s business. completed with the landowner in due course. 4535 Lands and ROW Landowner - Redwoods Golf Reclamaton will be conducted in accordance with the Reclamaton Management Plan (A85826). Detailed Route Prior to Operatons In Progress Trans Mountain representatves contnue to engage with Redwoods Golf Course e to identfy any Course Ltd. (Redwoods) Since the Lands are an altered landscaped environment, Trans Mountain commits to completng an Hearing, Reply specifc features regarding the Land. This includes site walk overs with the Landowner and Trans inventory of any substantal landscape and other improvements made to the Lands prior to Evidence (para 100) Mountain Project Representatves to inventory all potental impacts to the course. An agreement constructon clearing. Furthermore, in keeping with its regulatory obligaton to minimize impacts to will be reached with the Landowner that addresses all impacts, mitgatons, and damages as a result the extent practcable, Trans Mountain commits to restoring the Lands to their current use as a golf of constructon actvites. A voluntary acquisiton agreement is antcipated to be completed with the course. landowner in due course. 4536 Lands and ROW Landowner - Redwoods Golf Trans Mountain commits to meetng and working with the Landowner to establish a post- Detailed Route Project Lifecycle In Progress Trans Mountain representatves contnue to engage with Redwoods Golf Course to identfy any Course Ltd. (Redwoods) constructon site-specifc restoraton plan. Professional landscaping services will be used as required Hearing, Reply specifc features regarding the Land. This includes site walk overs with the Landowner and Trans to help develop the restoraton plan and implement the plan accordingly. Evidence (para 100) Mountain Project Representatves to inventory all potental impacts to the course. An agreement will be reached with the Landowner that addresses all impacts, mitgatons, and damages as a result of constructon actvites. A voluntary acquisiton agreement is antcipated to be completed with the landowner in due course. 4537 Lands and ROW Landowner - Redwoods Golf Trans Mountain commits to developing a Tree Inventory and Re-Plantng Plan in collaboraton with Detailed Route Prior to Operatons In Progress Trans Mountain representatves contnue to engage with Redwoods Golf Course to identfy any Course Ltd. (Redwoods) the Landowner prior to any tree removals. Hearing, Reply specifc features regarding the Land. This includes site walk overs with the Landowner and Trans Evidence (para 102) Mountain Project Representatves to inventory all potental impacts to the course. An agreement will be reached with the Landowner that addresses all impacts, mitgatons, and damages as a result of constructon actvites. A specifc reclamaton and landscape plan that addresses Tree replantng will be included in the agreement between Company and Landowner. A voluntary acquisiton agreement is antcipated in due course. 4540 Lands and ROW Landowner - Redwoods Golf In consultatons with Trans Mountain, the Landowner suggested that they will hire a professional Detailed Route Prior to Operatons In Progress Trans Mountain representatves contnue to engage with Redwoods Golf Course to identfy any Course Ltd. (Redwoods) golf course designer to help manage the restoraton of the Golf Course afer the TMEP constructon. Hearing, specifc features regarding the Land. This includes site walk overs with the Landowner and Trans Trans Mountain commits to working with the Landowner’s golf course designer and considering Supplemental Mountain Project Representatves to inventory all potental impacts to the course. An agreement their input in conductng its restoraton actvites on the Golf Course. Evidence (para 32) will be reached with the Landowner that addresses all impacts, mitgatons, and damages as a result of constructon actvites. A voluntary acquisiton agreement is antcipated to be completed with the landowner in due course. 4546 Lands and ROW Landowner - Redwoods Golf Trans Mountain commits to contnuing to work with the Landowner to mitgate the impacts of the Detailed Route Project Lifecycle Superseded by Superseded by s.314 of the CER Act to do as litle damage as possible and to compensate. Course Ltd. (Redwoods) TMEP to the extent practcable. Residual impacts, including compensaton for impacts that cannot Hearing, Reply Legal/Regulatory be mitgated, are outside of the Detailed Route Hearing process. However, Trans Mountain commits Evidence (para 63) Requirement to addressing these concerns through mutual agreement or CER processes. 4548 Lands and ROW Landowner - Redwoods Golf Trans Mountain will contnue to engage with the Landowner to address the Landowner’s concerns. Detailed Route Project Lifecycle In Progress TMEP land representatves will contnue to engage with the landowners throughout the project Course Ltd. (Redwoods) Hearing, lifecycle. Post Project turnover, Trans Mountain will have Regional Land Representatves available to Supplemental address any ongoing concerns raised by the Landowner. Evidence (para 16) 4550 Lands and ROW Landowner - Redwoods Golf Trans Mountain commits to working with the Landowner to develop a Tree Management Plan for Detailed Route Prior to Constructon In Progress Trans Mountain is commited to working with the Landowner to address these commitments. A Course Ltd. (Redwoods) TMEP constructon, to minimize tree removal and mitgate the impact of required tree removals to Hearing, Reply survey drawing and/or landscape plan will be completed to prior to clearing actvites and shared the extent practcable. Specifcally, as outlined in paragraph 32 of Trans Mountain’s 2018 Writen Evidence (para 114) with the landowner. Evidence Trans Mountain will: 1) Only clear trees to the extent required to safely construct the TMEP to the constructon team and the public. The survey will document the number, species, and approximate size of the existng trees. 2) Assess non-merchantable and merchantable tmber. 3) Identfy trees that require protecton. 4) Identfy signifcant trees or trees on the edges of the project footprint that can be retained. 5) Identfy which trees are caliper size and can be salvaged and stored for reclamaton plantng. 6) Provide the Landowner with survey drawings or landscape sketches of all the signifcant trees and ornamental features (e.g. shrubs, plantngs, garden/fowerbeds) along the project footprint prior to clearing, and identfy which are to be replaced afer constructon. 7) Perform a legal survey and clearly delineate what trees are to be cleared and what trees are to be retained. 8) Identfy, locate, document, and salvage and replace any other features (e.g. large rocks, monuments) as mutually agreed with the Landowner. 9) Consider other ofset or replacement optons for landscaping that is compatble with pipeline rights of way. 4553 Lands and ROW Landowner - Robin Scory Trans Mountain commits to engaging with the Landowner if and when the Landowner is willing to Detailed Route Project Lifecycle In Progress Trans Mountain has made numerous atempts to engage and consult with the Landowner. Trans engage. Hearing, Response Mountain is commited to engaging with the Landowner if and when the Landowner is willing to to Statement of engage. Company Land Representatve contact informaton has been provided to the Landowner. Oppositon (SOS), pg. 2 349 Marine Shipping NEB Trans Mountain will screen the tankers nominated to call on the Westridge Marine Terminal to check Technical Update During Operatons Complete Identfed as part of the Vessel Acceptance Standard (VAS) Masters Declaraton and Vessel that they are implementng a Volatle Organic Compound management plan. No. 1 & Consultaton Informaton Checklist fled as part of the NEB Reconsideraton Hearing (MH-052-2018), Filing IDs: Update No. 2 - Part VAS (2018) A6L2A5, Requirement has been met; updated VAS document will also be fled with CER 5, Part 01, Table Conditon 134, See Secton 2.5.4 (p. 8) of the VAS Masters Declaraton and Vessel Informaton 1.6.3-1 Checklist (2018).

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386 Marine Shipping NEB Trans Mountain will contnue to work with Western Canada Marine Response Corporaton (WCMRC) Applicaton Volume Project Lifecycle Superseded by NEB 91, 133, 144 Response to NEB IR TERMPOL Report and Outstanding Filings No. A (OH-001-2014, Filing ID to implement relevant recommendatons from the TERMPOL process, any recommendatons from 8, 8A-50. Conditon A4G3U5). Conditon 91 Plan for Marine Spill Preventon and Response Commitments - Supplemental the Panel and any mandated improvements to existng emergency preparedness and response Report (2020), MH-052-2018, Filing ID A7D1F0, Conditon 91 Marine Spill Preventon and Response measures as necessary to address the efects of the Project-related increase in tanker trafc. Commitments, From Conditon 91 Supplemental Report: Finding 6 & 7: see Secton 3.2.2: (p. 11) ERR Progress; See also - Commitment ID 404 regarding Trans Mountain funding of AIS / radar refectors on Vessels of Opportunity, Finding 28: see Secton 3.2.2 (p. 9-10) ERR Progress, Finding 29: See Secton3.2: Enhanced Marine Oil Spill Response (ERR) Conditon 133.b (p. 6) and 3.2.1 (p. 8) Trans Mountain's Role. 387 Marine Shipping NEB Trans Mountain is commited to further mitgatng potental efects of bilge water releases by using Applicaton Volume During Operatons Superseded by NEB 134 Identfed as part of the Westridge Marine Terminal Regulatons and Operatons Guide (WMTROG) reputable vessel owners and operators who strictly adhere to regulatons and ensure contnued 8A, 8A-435. Conditon and the Vessel Acceptance Standard (VAS) fled as part of the NEB Reconsideraton Hearing (MH- maintenance of vessel discharge treatment equipment and safety mechanisms. 052-2018). Filing IDs: WMTROG (2018) A6J6H7 and VAS (2018) A6L2A3. Requirement has been met; updated VAS document will also be fled with CER Conditon 134, See Secton 10.2 (p. 45) of the WMTROG and Secton 2.5.9 (p. 9) of the VAS (2018). 389 Marine Shipping NEB Trans Mountain will provide recepton facilites at the Westridge Marine Terminal as necessary to Applicaton Volume During Operatons In Progress The Westridge Marine Terminal Regulatons and Operatons Guide (WMTROG), part of Marine service the needs of the Project-related marine vessels. 8A, 8A-432. Terminal Operatons (ISLSM) will stpulate recepton facilites will be available to receive and safely handle cargo loading arm drainage. 390 Marine Shipping NEB Trans Mountain will require all tankers to process and empty their bilges prior to arrival and to have Applicaton Volume During Operatons Complete Identfed as part of the Westridge Marine Terminal Regulatons and Operatons Guide (WMTROG) the discharge valve of the bilge water locked while in Canadian waters. 8A, 8A-432. and Vessel Acceptance Standard (VAS) Masters Declaraton and Vessel Informaton Checklist fled as part of the NEB Reconsideraton Hearing (MH-052-2018). Filing IDs WMTROG (2018) A6J6H7 and VAS Masters Declaraton and Checklist (2018) A6L2A5, Requirement has been met; updated VAS document will also be fled with CER Conditon 134, See Secton 10.2 (p. 44-45) of the WMTROG (2018) and Secton 2.5.9 (p. 9) of the VAS Masters Declaraton and Vessel Informaton Checklist (2018). 391 Marine Shipping NEB Trans Mountain will require that a tug would accompany the Project-related tankers for the entre Applicaton Volume During Operatons Superseded by NEB 133, 134 Conditon 91 Plan for Marine Shipping-related Commitments (2017), OH-001-2014, Filing ID transit through the Strait of Georgia and between Race Rocks and the 12 nautcal mile to assist with 8A, 8A-364. Conditon A5R4K2; Conditon 91 (original) Marine Spill Preventon and Response Commitments, Conditon 91 navigaton. The tug escort is an enhancement to existng tug requirements. Report (OH-001-2014) Secton 5.1 (p. 5-8): Tug Matrix Updated Vessel Acceptance Standard will also be fled with CER Conditon 134. 392 Marine Shipping NEB Trans Mountain will require that all Project-related tankers calling at the Westridge Marine Terminal Applicaton Volume During Operatons Superseded by NEB 133, 134 This commitment will be addressed by CER Conditon 133: Confrmaton of marine spill preventon have mandatory tug escort for the entre route between the Westridge Marine Terminal and the 8A, 8A-432. Conditon and response commitments, and, CER Conditon 134: Updated Vessel Acceptance Standard and Pacifc Ocean. Westridge Marine Terminal Regulatons and Operatons Guide which will both be fled at least 3 months prior to loading the frst tanker at the Westridge Marine Terminal with oil transported by the Project. 393 Marine Shipping Robyn Allan, Val Veirs Trans Mountain is commited to working with Fisheries and Oceans Canada (DFO) and other Allan R IR No. 1.20l, Prior to Constructon Superseded by NEB 132 Trans Mountain has sought to contribute to and/or partcipate in multple initatves that seek to stakeholders on implementng the Acton Plan for the Recovery of the Southern Resident Killer Veirs V IR No. 1.5 Conditon improve the shipping industry’s understanding of the presence of marine mammals in shipping Whale as well as developing other strategies to assist in southern resident killer whale recovery. trafc lanes. Trans Mountain has chosen to partcipate or fnancially support initatves increase the abundance of food, minimize ocean polluton and adaptvely manage human disturbance to help marine mammals in their recovery. Commitment will be addressed by CER Conditon 132 Marine Mammal Protecton Program that will be fled at least 3 months prior to commencing operatons. 395 Marine Shipping City of Burnaby There will be multple and redundant communicaton lines open with the tanker and the pilot City Burnaby IR No. During Operatons Complete Proof of Completon: Docking Display board design by Mofat Nichol. Procurement complete. onboard to communicate dock approach and weather informaton which, subject to fnal design, is 1.26.10e expected to include a visual display. 396 Marine Shipping Province of Britsh Columbia Trans Mountain will provide a comparison of Vessel Trafc Service (VTS) capabilites comparing Province BC F-IR No. Prior to Constructon Complete See Trans Mountain response to (Follow up #3) Province BC F-IR No. 1.1.50a-Atachment 1 (VTS Canadian Coast Guard to other jurisdictons. 1.1.50a Report) (OH-001-2014, Filing ID A4A2Z7) and Province BC F-IR No. 1.1.50a-Atachment 2 (Appendix A) (OH-001-2014, Filing ID A4A2Z8). 398 Marine Shipping Tsawout First Naton Should the Project proceed, Trans Mountain will develop key safety and performance indicators for Tsawwassen FN F-IR During Operatons In Progress See Safe Shipping BC website for current informaton: www.safeshippingbc.ca. Trans Mountain will future enhanced Westridge operatons and provide regular updates to the Chamber of Shipping BC No. 1.28 work with COSBC to identfy how informaton can be enhanced once the expanded WMT is in (COSBC) that may then be posted to the COSBC website. operaton. 400 Marine Shipping Pacheedaht First Naton Trans Mountain is commited to working with the Department of Fisheries and Oceans (DFO) and Pacheedaht FN IR Prior to Constructon Superseded by NEB 134 Trans Mountain has sought to contribute to and/or partcipate in multple initatves that seek to other stakeholders on implementng the “Acton Plan for the Recovery of the Southern Resident No. 1.05.01 Conditon improve the shipping industry’s understanding of the presence of marine mammals in shipping Killer Whale (SRKW) ” as well as developing other strategies to assist in SRKW recovery. trafc lanes. Trans Mountain has chosen to partcipate or fnancially support initatves increase the abundance of food, minimize ocean polluton and adaptvely manage human disturbance to help marine mammals in their recovery. Commitment will be addressed by CER Conditon 134: Updated Vessel Acceptance Standard and Westridge Marine Terminal Regulatons and Operatons Guide that will be fled at least 3 months prior to loading the frst tanker at the Westridge Marine Terminal with oil transported by the Project, and thereafer on or before 31 January of each of the frst fve years afer commencing operatons.

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401 Marine Shipping District of West Vancouver Trans Mountain will follow up with 1) Transport Canada regarding incidents and failures, District of West Prior to Operatons Complete See Trans Mountain flings of correspondence as well as Transport Canada evidence for OH-001- enforcement and prosecutons the District of West Vancouver is seeking and commits to fling the Vancouver - 2014 hearing: Transport Canada - Correspondence fled by Trans Mountain (Filing ID A62678), as informaton with the Natonal Energy Board without delay upon receipt of same from Transport Atachment - Table well as Appendix B of Transport Canada Evidence dated May 27, 2015 (Filing ID A4L7K1) (page B1, p. Canada. 2) The Pacifc Pilotage Authority regarding the escortng of ships the District of West 1.57 (page 17), 1.14 66-67 of PDF), PPA - Correspondence fled by Trans Mountain (Filing ID A62676), WCMRC - Vancouver is seeking and commits to fling the informaton with the Natonal Energy Board without (page 6), 117 (page Correspondence fled by Trans Mountain (Filing ID A64054), VFPA (DBA Port Metro Vancouver) - delay upon receipt of same from The Pacifc Pilotage Authority. 3) Western Canada Marine Response 7) Evidence (Filing ID A4L6Q7), and Port Informaton Guide Port submited to the NEB process as Corporaton (WCMRC) regarding informaton on what other organizatons would assist; the atachment with the TERMPOL report (Filing ID A4F8Z7). antcipated response tmes for other organizatons; and mutual aid or similar agreements; mutual aid to other organizatons, the District of West Vancouver is seeking and commits to fling the informaton with the Natonal Energy Board without delay upon receipt of same from WCMRC. 4) Vancouver Fraser Port Authority DBA Port Metro Vancouver regarding speed limits the District of West Vancouver is seeking and commits to fling the informaton with the Natonal Energy Board without delay upon receipt of same from Vancouver Fraser Port Authority DBA Port Metro Vancouver. 402 Marine Shipping Tsawout First Naton Trans Mountain will follow up with Canada and the Province of BC regarding the informaton the Tsawout FN - Prior to Operatons No Longer The commitment was made by Trans Mountain as part of a detailed reply to a moton by the Intervenor is seeking and commits to fling the informaton with the Natonal Energy Board without Atachment - Table Applicable Tsawout First Naton to compel full and adequate responses to a lengthy informaton request delay upon receipt of same from Canada and the Province of BC. 1.36t (A3Z2D6 at PDF Page 133). The NEB ultmately denied this moton on September 26, 2014, ruling that Trans Mountain had already sufciently responded (A4C4H7 at PDF Page 125 for IR 1.36(t)). Based on that ruling, the statement has been overtaken and is no longer applicable. 403 Marine Shipping Department of Fisheries and Trans Mountain is commited to contnued co-operaton with Vancouver Fraser Port Authority DBA Trans Mountain During Operatons In Progress Engagement by VFPA on trafc organizaton service and TCZ-2 will be documented by Trans Oceans, Transport Canada, Port Metro Vancouver and the Canadian Coast Guard to ensure safety and efciency of marine trafc Response to NEB IR Mountain. Vancouver Fraser Port including movements within the Movement Restricton Area (MRA). Trans Mountain will contnue to TERMPOL Rpt and Authority DBA Port Metro discuss the efects of the Project on available transit windows and the movement of vessels in the Outstanding Filings Vancouver MRA with Port Metro Vancouver. (January 2, 2015) Recommendaton 6 404 Marine Shipping NEB Trans Mountain will provide fnancial assistance to smaller vessels registered in Western Canada Trans Mountain During Operatons In Progress Trans Mountain funded (WCMRC implementaton) of radar refectors and AIS will be reported out in Marine Response Corporaton (WCMRC)’s Fishers Oil Spill Emergency Team (FOSET) program to be Response to NEB IR the Conditon 133 fling due three months prior to Project operatons. fted with Automated Informaton System (AIS) and radar refectors, which will aid in located FOSET TERMPOL Rpt and assets during standard operatons, as well as while undertaking response actvites and will enhance Outstanding Filings safety. (January 2, 2015) Finding 6 405 Marine Shipping NEB, Transport Canada Trans Mountain will notfy the appropriate authority if it wishes to alter any Project commitments Trans Mountain Prior to Constructon In Progress Commitment addressed in Table A-1, Response to NEB IR TERMPOL Report and Outstanding Filings related to the movement of Project-related tankers, operatonal parameters, or characteristcs, so Response to NEB IR No. A (OH-001-2014, Filing ID A4G3U5). the authority can review the impacts to safety as a result of the changes. TERMPOL Rpt and Outstanding Filings (January 2, 2015) Recommendaton 1 407 Marine Shipping Department of Fisheries and Trans Mountain will provide copies of its Port Informaton and Terminal Operatons Manual to Trans Mountain Prior to Operatons Complete Westridge Marine Terminal Regulatons and Operatons Guide (WMTROG), the Vessel Acceptance Oceans, Transport Canada, Transport Canada, the Canadian Coast Guard, the Pacifc Pilotage Authority, and Vancouver Fraser Response to NEB IR Standard (VAS) including the Masters Declaraton and Vessel Informaton Checklist fled as part of Vancouver Fraser Port Port Authority DBA Port Metro Vancouver for informaton at least six months before the start of TERMPOL Rpt and the NEB Reconsideraton Hearing (MH-052-2018) Filing IDs: WMTROG (2018) A6J6H7, VAS (2018) Authority DBA Port Metro terminal operatons. Outstanding Filings A6L2A5 and VAS Masters Declaraton and Vessel Informaton Checklist (2018) A6L2A3 Requirement Vancouver (January 2, 2015) has been met; updated VAS document will also be fled with CER Conditon 134, Whole documents Recommendaton 15 applicable. 409 Marine Shipping NEB, Transport Canada The Internatonal Safety Guide for Oil Tankers and Terminals (ISGOTT) safety checklist as well as a Trans Mountain During Operatons Complete Identfed as part of the Westridge Marine Terminal Regulatons and Operatons Guide (WMTROG) checklist with additonal terminal specifc safety items will be included to the updated Terminal Response to NEB IR and Vessel Acceptance Standard (VAS) Masters Declaraton and Vessel Informaton Checklist fled as Operatons Manual, which shall be provided to the TERMPOL Review Commitee (TRC) 6 months TERMPOL Rpt and part of the NEB Reconsideraton Hearing (MH-052-2018), Filing IDs WMTROG (2018) A6J6H7 and prior to the expanded terminal becoming operatonal. Outstanding Filings VAS Masters Declaraton and Checklist (2018) A6L2A5, Requirement has been met; updated VAS (January 2, 2015) document will also be fled with CER Conditon 134., ISGOTT mentoned throughout the WMTROG Recommendaton 12 (2018), see specifcally secton 3.4 (p. 15) and 16.5 (p. 83) of the WMTROG (2018) and sectons 2.4.4 (p. 7) and 2.5.6 (p. 9) of the VAS Masters Declaraton and Vessel Informaton Checklist (2018). 410 Marine Shipping NEB, Transport Canada Trans Mountain will accept oil tankers of up to Aframax size and always within any limitatons set by Trans Mountain Project Lifecycle Complete Identfed as part of the Westridge Marine Terminal Regulatons and Operatons Guide (WMTROG) Vancouver Fraser Port Authority DBA Port Metro Vancouver. Response to NEB IR and Vessel Acceptance Standard (VAS) Masters Declaraton and Vessel Informaton Checklist fled as TERMPOL Rpt and part of the NEB Reconsideraton Hearing (MH-052-2018), Filing IDs: WMTROG (2018) A6J6H7 and Outstanding Filings VAS Masters Declaraton and Checklist (2018) A6L2A5, Requirement has been met; updated VAS (January 2, 2015) document will also be fled with CER Conditon 134 , See Secton 6.10.6 (p. 31) of the WMTROG Recommendaton 2 (2018) and Sectons 2.1.1 (p. 2) and 2.4.2 (p. 7) of the VAS Masters Declaraton and Vessel Informaton Checklist (2018). 411 Marine Shipping NEB, Transport Canada Trans Mountain will confrm draf mooring procedures as part of real-tme simulatons to enhance Trans Mountain During Operatons Complete Report shared with TC, VFPA and others in July 2020. safety. Such procedures will be included to the Terminal Operatons Manual. Response to NEB IR TERMPOL Rpt and Outstanding Filings (January 2, 2015) Recommendaton 14

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412 Marine Shipping NEB, Transport Canada Trans Mountain will contnue its existng practce of having a dedicated loading master present at Trans Mountain During Operatons Complete Identfed as part of the Westridge Marine Terminal Regulatons and Operatons Guide (WMTROG) Westridge Marine Terminal, which provides an added measure of safety to cargo transfer Response to NEB IR and the Vessel Acceptance Standard (VAS) fled as part of the NEB Reconsideraton Hearing (MH- operatons. TERMPOL Rpt and 052-2018), Filing IDs: WMTROG (2018) A6J6H7 and VAS (2018) A6L2A3, Requirement has been met; Outstanding Filings updated VAS document will also be fled with CER Conditon 134, See Sectons 1.4 (p. 1), 2.7.1 (p. (January 2, 2015) 11) and 4.4 (p. 17) of the WMTROG and Sectons 2.2.4 (p. 4) of the VAS (2018). Finding 23 413 Marine Shipping NEB, Transport Canada Trans Mountain will contnue to use industry best practces related to cargo transfer actvites to Trans Mountain Project Lifecycle Complete Identfed as part of the Westridge Marine Terminal Regulatons and Operatons Guide (WMTROG) enhance safety and the protecton of the marine environment. Response to NEB IR and the Vessel Acceptance Standard (VAS) fled as part of the NEB Reconsideraton Hearing (MH- TERMPOL Rpt and 052-2018), Filing IDs: WMTROG (2018) A6J6H7 and VAS (2018) A6L2A3, Requirement has been met; Outstanding Filings updated VAS document will also be fled with CER Conditon 134, See Sectons 4.4.3 (p. 17) and (January 2, 2015) 4.5.1 (p. 17) of the WMTROG and Sectons 1.1.1 (p. 2) and 2.2.5.1 (p. 4) of the VAS (2018). Finding 26 463 Marine Shipping NEB, Transport Canada Trans Mountain will require in its Tanker Acceptance Criteria that departng laden Project tankers to Trans Mountain During Operatons Superseded by NEB 134 The Pacifc Pilotage Authority (PPA) and Britsh Columbia Coast Pilots (BCCP) have plans in hand to extend pilot disembarkaton and tethered tug escort requirements to an area in the vicinity of Race Response to NEB IR Conditon extend the pilot disembarkaton point to a locaton of Race Rocks. Commitment will be addressed Rocks, weather permitng and subject to the requirements identfed in a Pacifc Pilotage Authority TERMPOL Rpt and by CER Conditon 134: Updated Vessel Acceptance Standard and Westridge Marine Terminal ‘Notce to Industry’. Outstanding Filings Regulatons and Operatons Guide that will be fled at least 3 months prior to loading the frst tanker (January 2, 2015) at the Westridge Marine Terminal with oil transported by the Project, and thereafer on or before 31 Finding 18 January of each of the frst fve years afer commencing operatons. 472 Marine Shipping Department of Fisheries and Once detailed engineering has been developed for the proposed expanded Westridge Marine Trans Mountain Prior to Constructon Complete See Appendix A (pg. 65 of PDF) of the Westridge Marine Terminal Project Descripton fled with the Oceans, Transport Canada Terminal, Trans Mountain will provide the Canadian Coast Guard (CCG) with informaton necessary Response to NEB IR Vancouver Fraser Port Authority for Westridge Marine Terminal Development Permit in May to evaluate the additonal navigaton aids that it proposes to establish at the facility and otherwise TERMPOL Rpt and 2017:htps://www.portvancouver.com/wp- seek advice and input of the CCG. Outstanding Filings content/uploads/2017/06/TMEP_VFPA_Project_Descripton_June2017_V1.1_External.pdf (January 2, 2015) (Accessed December 9, 2020). Recommendaton 3 531 Marine Shipping Environment Canada Trans Mountain will contnue to identfy, select and evaluate potental Environmental stewardship GoC EC IR No. Project Lifecycle Complete See documentaton provided in response to CER CVA 2021-395 IR No. 38 (Package 1) on June 26, initatves that align with priority areas of their Environmental Stewardship Program. Trans Mountain 2.047a, NEB IR No. 2020: CVA2021-395 IR38 CT1703 Atachment 1 of 2 - Funding Marine Bird Survey, CVA2021-395 remains commited to partcipatng in additonal collaboratve partnerships to collect data on marine 3.036a – Atachment IR38 CT1703 Atachment 2 of 2 - Record of Contact , Recommendaton 3 as described in the 16 bird abundance, distributon, and diversity in the Marine Regional Study Area (RSA) and welcomes 1, Filing ID A4H1X7). Recommendatons put to the Government of Canada by the NEB Reconsideraton Report (Filing ID further consultaton with Environment Canada and other industry stakeholders on the structure and A6S2D8). The Governor in Council confrmed it will undertake to implement all the scope of a monitoring program. Recommendatons in the Order in Council issued June 18, 2020 (PC Number: 2019-0820). Informaton and applicatons for the Trans Mountain Community Investment Program can be found at htps://www.transmountain.com/community-investment (Accessed December 20, 2020). 533 Marine Shipping Environment Canada Trans Mountain is commited to establishing mutual data sharing agreements that support response GoC EC IR No. Prior to Operatons Complete Pacifc Wildlife Foundaton Publicatons, see Status and Distributon of Marine Birds and Mammals planning and research initatves as they relate to marine birds in Burrard Inlet and along the 2.047e in Burrard Inlet and Indian Arm, Britsh Columbia 2011-13: htps://pwlf.ca/publicatons/ See shipping route. documentaton provided in response to CER CVA 2021-395 IR No. 38 (Package 1) on June 26, 2020: CVA2021-395 IR38 CT1703 Atachment 1 of 2 - Funding Marine Bird Survey, CVA2021-395 IR38 CT1703 Atachment 2 of 2 - Record of Contact, Recommendaton 3 as described in the 16 Recommendatons put to the Government of Canada by the NEB Reconsideraton Report (Filing ID A6S2D8). The Governor in Council confrmed it will undertake to implement all the Recommendatons in the Order in Council issued June 18, 2020 (PC Number: 2019-0820). 541 Marine Shipping Transport Canada, Trans Mountain will carry out exercises entailing real tme navigaton simulaton afer completon of Trans Mountain During Operatons Complete See Secton 9.3 (p. 71) of Trans Mountain direct evidence for NEB Reconsideraton Hearing (MH- Vancouver Fraser Port detailed design; such simulaton maneuvers will be for the areas surrounding the Westridge Marine Response to NEB IR 052-2018, Filing ID A6J6F4), BC Coast Pilots Applicaton to Partcipate (p. 5) (MH-052-2018, Filing ID Authority DBA Port Metro Terminal and will be carried out in consultaton with Vancouver Fraser Port Authority DBA Port TERMPOL Rpt and A6I1E7. Vancouver Metro Vancouver, the Pacifc Pilotage Authority, and BC Coast Pilots. Outstanding Filings (January 2, 2015) Recommendaton 4 709 Marine Shipping Living Oceans Society Any available wind data inputs will be provided directly to the Intervenor on a USB stck as the fle Living Oceans IR No. Prior to Constructon In Progress Proof of completon will be the transmital records of the data to Living Oceans. format does not lend itself to fling with the Natonal Energy Board (NEB). Trans Mountain will 2.3 provide these fles to the NEB and any Intervenor on request. 730 Marine Shipping NEB, Province of Britsh Trans Mountain remains commited to playing a role in the dialogue on developing a spill monitoring NEB IR No. 3.023a; Prior to Operatons Complete Trans Mountain engaged with multple stakeholders to encourage a joint conversaton about spill Columbia sampling program for chemicals of potental concern in the shipping lanes in Canadian waters, along Province BC IR No. sample monitoring. This includes: - Ocean Wise (Vancouver Aquarium) Coastal Ocean Research with other industrial marine trafc users in the Burrard Inlet and Straits of Georgia and Juan de Fuca. 1.1.41a Insttute Polluton Tracker - Ocean Networks Canada (Coastal Radar) - Chamber of Shipping of BC - Canadian Coast Guard 16 Recommendatons put to the Government of Canada by the NEB Reconsideraton Report (Filing ID A6S2D8). The Governor in Council confrmed it will undertake to implement all the Recommendatons in the Order in Council issued June 18, 2020 (PC Number: 2019-0820). Greater Vancouver Integrated Response Plan is described in Secton 7.F (p. 189) of CCG evidence for the NEB Reconsideraton Hearing (MH-052-2018, Filing ID A6J6L9). 750 Marine Shipping Environment Canada Trans Mountain commits to undertaking surveys onboard randomly sampled tankers at the GoC EC IR No. 2.071 During Operatons Superseded by NEB 53 RWDI memo dated April 8, 2020: Comparison of Fugitve VOC Emission Survey Results during Tanker Westridge Marine Terminal during which tme cargo tank covers and associated seals will be checked Conditon Loading Fugitve Emission Management Plan, CER Conditon 53 Westridge Marine Terminal. for leaks of real-tme total hydrocarbon (THC) or total volatle organic compounds (TVOC) measurements using a portable monitor. These tests will be carried out by the Loading Master and four such works shall be completed, one per season. 783 Marine Shipping Province of Britsh Columbia Trans Mountain commits to supportng Western Canada Marine Response Corporaton’s Province BC IR No. Prior to Constructon Superseded by NEB 91, 133 Commitment addressed in Conditon 91 Plan for Marine Shipping-related Commitments (2017), OH- implementaton of the enhanced planning standards. 2.52 Conditon 001-2014, Filing ID A7D1F0, Conditon 91 Supplemental), Marine Spill Preventon and Response Commitments, Conditon 91 Report (MH-052-2018) Secton 3.2.1 (p.8): Trans Mountain's Role Updated Vessel Acceptance Standard will also be fled with CER Conditon 134 Secton.

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835 Marine Shipping BC Nature and Nature Trans Mountain will explore optons for reducing lightng on Project-related vessels, to the extent BC Nature Nature Prior to Constructon Superseded by NEB 134 Commitment will be addressed by CER Conditon 134: Updated Vessel Acceptance Standard and Canada that it is feasible with respect to safety and industry regulatons. Cda IR No. 2.16b.2 Conditon Westridge Marine Terminal Regulatons and Operatons Guide that must be fled at least 3 months prior to loading the frst tanker at the Westridge Marine Terminal with oil transported by the Project, and thereafer on or before 31 January of each of the frst fve years afer commencing operatons. 836 Marine Shipping City of Vancouver Vancouver Fraser Port Authority DBA Port Metro Vancouver’s Enhancing Cetacean Habitat and City of Vancouver IR Prior to Operatons Complete Identfed as part of the Westridge Marine Terminal Regulatons and Operatons Guide (WMTROG) Observaton (ECHO) Program and the Green Marine’s Underwater Noise Commitee are two No. 2.07.6a fled as part of the NEB Reconsideraton Hearing (MH-052-2018), Filing IDs WMTROG (2018) initatves engaged in working collaboratvely with industry to develop future guidelines for reducing A6J6H7, Requirement has been met; See Sectons 4.7 (p. 18), 10.0 (p. 44), 14.8 (p. 70), 14.9 (p. 71) underwater noise from large commercial vessels. Trans Mountain is commited to partcipatng in and 16.12 (p. 84). both initatves. Once such guidelines are available, Trans Mountain shall require project tankers to adopt those as best practce as part of its Tanker Acceptance Standards. 837 Marine Shipping City of Vancouver Trans Mountain is also commited to support the Government of Canada’s eforts to establish and City of Vancouver IR Prior to Operatons Superseded by NEB 133, 134 This commitment will be addressed by CER Conditon 133: Confrmaton of marine spill preventon enforce marine safety regulatons that ensure a world class tanker system, partcularly those with No. 2.05.2c Conditon and response commitments, and, CER Conditon 134: Updated Vessel Acceptance Standard and similar afect as the Western Canada Marine Response Corporaton (WCRMC) enhancements. Westridge Marine Terminal Regulatons and Operatons Guide which will both be fled at least 3 months prior to loading the frst tanker at the Westridge Marine Terminal with oil transported by the Project. 839 Marine Shipping Elizabeth May In support of the Trans Mountain Expansion Project, Trans Mountain and Western Canada Marine May E IR No. 2.1a During Operatons Superseded by NEB 91 Commitment addressed by Conditon 91: Plan for marine spill preventon and response Response Corporaton (WCMRC) have commited to increasing the response capacity to 20,000 Conditon commitments Supplemental Report compliance fling (2017), MH-052-2018, Filing ID A7D1F0. See tonnes and exceeding the legislated response tme requirements. Secton 3.2.1 (p.8): Trans Mountain's Role. 861 Marine Shipping Metro Vancouver Trans Mountain commits to undertaking surveys onboard randomly sampled tankers at Westridge Metro Vancouver IR During Operatons Complete RWDI memo dated April 8, 2020: Comparison of Fugitve VOC Emission Survey Results during Tanker during which tme cargo tank covers and associated seals will be checked for leaks of real-tme total No. 2.2.1 Loading Fugitve Emission Management Plan, CER Conditon 53 Westridge Marine Terminal. hydrocarbon (THC) or total volatle organic compounds (TVOC) measurements using a portable monitor. These tests will be carried out by the Loading Master and four such surveys shall be completed, one per season. 868 Marine Shipping Vancouver Fraser Port Should Vancouver Fraser Port Authority DBA Port Metro Vancouver develop a partcular facet of its PMV IR No. 2.24c Project Lifecycle Superseded by NEB 134 Commitment will be addressed by CER Conditon 134: Updated Vessel Acceptance Standard and Authority DBA Port Metro EcoActon Program afectng tankers, Trans Mountain will publicize it through its Tanker Acceptance Conditon Westridge Marine Terminal Regulatons and Operatons Guide that must be fled at least 3 months Vancouver Standard and thereby encourage vessel operators to try and meet the program’s standards as far as prior to loading the frst tanker at the Westridge Marine Terminal with oil transported by the it is possible for the vessels to do so. Project, and thereafer on or before 31 January of each of the frst fve years afer commencing operatons. 887 Marine Shipping Vancouver Fraser Port Trans Mountain is commited to partcipatng and contributng in a positve manner to discussions PMV IR No. 2.02.a Project Lifecycle Complete Email from VFPA anchorage review completed with copy of the new anchorage locatons for Indian Authority DBA Port Metro related to anchorages in Indian Arm should Vancouver Fraser Port Authority DBA Port Metro Arm. Vancouver Vancouver wish to initate such wider discussions. 907 Marine Shipping Squamish Naton Trans Mountain will require tug escort of all Project-related tankers for the entre transit from Squamish Naton IR Project Lifecycle Superseded by NEB 133, 134 This commitment will be addressed by CER Conditon 133: Confrmaton of marine spill preventon Westridge Marine Terminal to J Buoy. No. 2.05.x Conditon and response commitments, and, CER Conditon 134: Updated Vessel Acceptance Standard and Westridge Marine Terminal Regulatons and Operatons Guide which will both be fled at least 3 months prior to loading the frst tanker at the Westridge Marine Terminal with oil transported by the Project. 941 Marine Shipping Washington State Trans Mountain will contnue to liaise with regulatory authorites such as the US Coast Guard and WSDOE IR No. 2.11d Project Lifecycle In Progress Trans Mountain will contnue to be actve in the maritme and industry communites in Washington Department of Ecology Washington State Department of Ecology. State to ensure government agencies responsible for spill preventon and response and relevant stakeholders have project informaton. See Atachment 8.2.1 to Trans Mountain direct evidence for the NEB Reconsideraton Hearing (MH-052-2018, Filing ID A6J6I0). Stakeholder Engagement Procedure to be developed by Public Afairs for ISLMS. 1451 Marine Shipping NEB Tran Mountain will modify for clarity the regulatory compliance secton of its tanker acceptance NEB IR No. 4.09 Project Lifecycle Superseded by NEB 134 Commitment is addressed in Vessel Acceptance Standard (VAS), VAS Masters Declaraton and Vessel standard item 4.5.1 to read with the following “The vessel will be built to industry standards and Conditon Informaton Checklist fled as part of the NEB Reconsideraton Hearing (MH-052-2018). Filing ID VAS operated in accordance with industry best practces, always compliant with relevant local and Masters Declaraton and Checklist (2018) A6L2A5, Requirement has been met; updated VAS internatonal laws and regulatons. The vessel will carry ALL required and customary certfcates of document will also be fled with CER Conditon 134, See Secton 2.1.5 (p. 3). compliance.” 1453 Marine Shipping NEB Trans Mountain will include in its Port Informaton and Terminal Operatons Manual guidance the NEB IR No. 4.09 Prior to Operatons Superseded by NEB 132 Identfed as part of the Westridge Marine Terminal Regulatons and Operatons Guide (WMTROG) reportng requirements for mammal vessel strikes and mammals in distress. The informaton will be Conditon and the Vessel Acceptance Standard (VAS) Masters Declaraton and Vessel Informaton Checklist updated for the Fisheries and Oceans Canada (DFO) reportng requirements change in the future to fled as part of the NEB Reconsideraton Hearing (MH-052-2018). Filing IDs: WMTROG (2018) ensure reportng requirements remain consistent with DFO. A6J6H7 and VAS (2018) A6L2A5, Requirement has been met; updated VAS document will also be fled with CER Conditon 134, See Secton 14.8.4 (p. 70) of the WMTROG and Secton 2.1.22 (p. 3) of the VAS (2018). 1469 Marine Shipping Makah Tribal Council Trans Mountain is commited to working with a Scientfc Advisory Commitee to address areas for Makah TC IR No. Project Lifecycle Complete See research and fndings related to the fate and behaviour of oil (diluted bitumen research) in future research and development on the fate and behaviour of diluted bitumen. 1.10a Secton 8.1.2 (p. 59) of Trans Mountain Direct Evidence submited with the NEB Reconsideraton Hearing (MH-052-2018, Filing ID A6J6F4). Trans Mountain contnues to post updates to the Diluted Bitumen Informaton webpage of the Trans Mountain website: Diluted Bitumen Studies and Fact Sheets tps://www.transmountain.com/diluted-bitumen-informaton. In compliance with BCEAO (EAC) Conditon No. 35, Trans Mountain must submit reports about this research prior to Operatons as well as at one year and 5 years post Operatons. 1470 Marine Shipping Makah Tribal Council Trans Mountain, as part of its vessel screening process, will request that the tankers' staf know Makah TC IR No. Project Lifecycle Complete See Trans Mountain response to CER CVA 2021-395 IR No. 37. MCTS contact informaton added to Marine Communicatons and Trafc Services (MCTS) contact numbers and the notfcaton 1.16 the WMTROG (p. 8) fled in evidence for the NEB Reconsideraton Hearing (MH-052-2018, Filing ID procedure. A6J6H7).

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1514 Marine Shipping Vancouver Fraser Port Trans Mountain will discuss with Vancouver Fraser Port Authority DBA Port Metro Vancouver how Pre-Applicaton Prior to Operatons Complete It is mentoned in the Port Informaton Guide. Port Authority Vessels will be available to clear trafc Authority DBA Port Metro trafc clearance and escort services by the Port Metro Vancouver Harbour Master’s launch within Project Descripton, and provide escort services through First and Second Narrows during operatonal periods whenever Vancouver Port Metro Vancouver boundaries may be extended to all Project tankers during their departure p 27. possible. from Vancouver Harbour. 1515 Marine Shipping Vancouver Fraser Port Post constructon, Trans Mountain will actvely discuss and agree with Vancouver Fraser Port Trans Mountain During Operatons In Progress Engagement summary can be provided. Any required changes as a result of real tme passing vessel Authority DBA Port Metro Authority DBA Port Metro Vancouver and Transport Canada the modalites of observing real efects Response to NEB IR analysis will be refected in the Trans Mountain Westridge Marine Terminal Regulatons and Vancouver of trafc passing the Westridge Marine Terminal, will document those efects and if required will TERMPOL Rpt and Operatons Guide. accordingly adjust the terminal’s mooring plans in order to ensure the safety of the terminal and any Outstanding Filings berthed or passing vessels. (January 2, 2015) Table A-1 Recommendaton 5 1517 Marine Shipping Province of Britsh During the real tme navigaton simulaton with pilots and tug operators, Trans Mountain will Trans Mountain Prior to Operatons In Progress The navigaton simulatons will incorporate the use of tugs with partcipaton of local tug operators. Columbia, Transport Canada determine the minimum number and type of berthing tugs that will be required by vessels intending Response to NEB IR Experience from the exercises will be used to determine the level of tug support that would be to use the expanded terminal and in consultaton with Vancouver Fraser Port Authority DBA Port TERMPOL Rpt and required for berthing/unberthing at the new dock complex. Copy of real tme navigaton simulaton Metro Vancouver and the Pacifc Pilotage Authority will include such requirements to the future Port Outstanding Filings with pilots and tug operators that was provided to Transport Canada, VFPA and PPA. Westridge Informaton and Terminal Operatons Manual. This will also form part of Trans Mountain’s future (January 2, 2015) Marine Terminal Regulatons and Operatons Guide will be updated to refect number of berthing Tanker Acceptance Standard and tankers that do not commit to using berthing tugs will be denied (Filing ID A4G3U5) tugs required as a result of the real tme navigaton simulaton. their approval to load at Westridge. Table A-1 Recommendaton 13 1518 Marine Shipping Province of Britsh Trans Mountain will make it a requirement of acceptance for tankers nominated to load at Westridge Trans Mountain Prior to Operatons Superseded by NEB 133, 134 Conditons 133 and 134 will be fled at least 3 months prior to loading the frst tanker at the Columbia, Transport Canada to have a suitable arrangement for the proposed enhanced tug escort. Trans Mountain will develop a Response to NEB IR Conditon Westridge Marine Terminal with oil transported by the Project. tug matrix for inclusion as part of its Tanker Acceptance Standard to prescribe minimum tug TERMPOL Rpt and capabilites required upon departure of the tanker. The tug matrix will defne the capabilites and Outstanding Filings number of tugs required for foreseeable meteorological and ocean conditons and based on tanker (January 2, 2015) and cargo size. The tug matrix will be developed by a qualifed third-party consultant, in conjuncton (Filing ID A4G3U5) with the tug operators and regulatory authorites. Trans Mountain will deny approval to load at the Table A-1 Westridge Marine Terminal to Tankers that do not commit to tug escort in the Juan de Fuca Strait Recommendaton 8 during their laden passage. To this end, Trans Mountain recently organized a meetng with Transport Canada, Pacifc Pilotage Authority, Chamber of Shipping BC, tug operators, Robert Allan Ltd, Tetra Tech EBA and marine experts. A technical working group was struck at the meetng. The technical working group will develop the matrix described above for untethered tug escort of Project tankers for the Strait of Georgia and Juan de Fuca Strait. 1527 Marine Shipping Natural Resources Canada Should Trans Mountain learn that Asian Gypsy Moth egg masses are hatching onboard a vessel, GoC NRCan IR No. During Operatons Complete See Sectons 10.6 (p. 46), 15.3.1.16 (p. 80) and Contact informaton for Canadian Food Inspecton whether the vessel is berthed at Westridge terminal or not, Trans Mountain will inform CFIA and 2.123 Agency (p. 9) of the Westridge Marine Terminal Regulatons and Operatons Guide (WMTROG) - fled request guidance. as Atachment 6.5.2 to Trans Mountain evidence (MH-052-2018, Filing ID A6J6H7). 1703 Marine Shipping Environment Canada Trans Mountain will meet with Environment Canada in April 2014 to discuss a collaboratve, EC P-IR No. 1.19 Prior to Constructon Complete See documentaton provided in response to CER CVA 2021-395 IR No. 38 (Package 1) on June 26, industry-wide approach to the development of a long-term monitoring program for marine birds. 2020: CVA2021-395 IR38 CT1703 Atachment 1 of 2 - Funding Marine Bird Survey, CVA2021-395 IR38 CT1703 Atachment 2 of 2 - Record of Contact. 1707 Marine Shipping NEB Trans Mountain is commited to working with the Department of Fisheries and Oceans (DFO), NEB IR No. 1.51 Prior to Constructon Complete See the DFO Fisheries Act Authorizaton applicaton package and subsequent approval from 2019: partcipatng Aboriginal communites, Vancouver Fraser Port Authority DBA Port Metro Vancouver WMT FAA Cover Leter July 2019, DFO 19-HPAC-00501 Applicaton for Fisheries Act Authorizaton for and other stakeholders to identfy the most appropriate means of ofsetng serious harm to marine Westridge, Fisheries Act Authorizaton No. 19-HPAC-00753 - Westridge Marine Terminal Expansion fsh and fsh habitat. Trans Mountain will submit a preliminary marine fsh habitat ofsetng plan to (Amended) (issued January 20, 2020). Consultaton and Engagement are described in Secton 2.0 of the NEB in Q3 2014. the FAA applicaton for Amendment (p. 2.1, p. 25 of PDF). 1717 Marine Shipping NEB Trans Mountain will ensure its Port Informaton and Terminal Operatons Manual is available to oil TERMPOL Rpt and During Operatons Complete Trans Mountain has shared the WMTROG and associated vessel acceptance standard with shippers shippers and their agents in tme for them to understand and fully comply with its contents. Outstanding Filings and agents. A copy of the current Westridge Marine Terminal Regulatons and Operatons Guide Table A-1 (WMTROG) and Vessel Acceptance Standard including the Masters Declaraton and Vessel Recommendaton 16 Informaton Checklist (VAS) has been shared publicly as part of the NEB Reconsideraton hearing (MH-052-2018). Identfed as part of the Westridge Marine Terminal Regulatons and Operatons Guide (WMTROG) and Vessel Acceptance Standard (VAS), VAS Masters Declaraton and Vessel Informaton Checklist fled as part of the NEB Reconsideraton Hearing (MH-052-2018), Filing IDs WMTROG (2018) A6J6H7, VAS (2018) A6L2A3 and VAS Masters Declaraton and Checklist (2018) A6L2A5, Requirement has been met; updated VAS document will also be fled with CER Conditon 134, Whole documents apply - see also Appendix C fow chart on p. 90 of WMTROG. 1768 Marine Shipping NEB Trans Mountain commits to commencing a process to solicit and obtain feedback and comments Reconsideraton Prior to Operatons In Progress Engagement Summary can be provided once report has been released for review and feedback with from Indigenous Groups on the draf versions of the Marine Mammal Protecton Program (MMPP), Report p. 406, 422; Indigenous groups. no later than 18 months before the commencement of Project-operatons. IR No. 1.2 (a) 1769 Marine Shipping NEB Trans Mountain commits to including the following informaton in its Westridge Marine Terminal Reconsideraton Prior to Operatons In Progress See Westridge Marine Terminal Regulatons and Operatons (WMTROG) and the Vessel Acceptance Regulaton and Operatons Guide (WMTROG): If there is support for it from the appropriate federal Report p. 406, 407, Standard (VAS) will be updated prior to Operatons. An updated VAS document will also be fled with authorites, Trans Mountain would request Project-related vessels skirt recentrly designated critcal 421; Direct Evidence CER Conditon 134. habitat for the Southern Resident Killer Whales (SRKW) and Norther Resident Killer Whales (NRKW) pp. 50, 51 of Southwestern Vancouver island by including a Deviaton Point in the vessel's passage plan, and request that they proceed at not more than 12 knots between the Deviaton Point and Buoy J, safe navigaton permitng and if feasible to. (Measure 1) 1770 Marine Shipping NEB Trans Mountain commits to working with Project shippers to optmize Marine Transport Efciencies, Reconsideraton Prior to Operatons In Progress Working with Shipper Service (Kevin M) to determine appropriate documentaton. This is a reduce the number of Project-related vessel shipments by maximizing tanker cargo volume to Report p. 407; Direct commercial process. reduce underwater noise (Measure 3). Evidence pp. 52. 53

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1771 Marine Shipping NEB Trans Mountain commits to contnue collaboratng and work in partnership with actve marine Reconsideraton Prior to Operatons Superseded by BC 11 See Marine Public Outreach Executon Plan fled as Atachment 9.2.2 with Trans Mountain evidence authorites and organizatons, and coastal communites to provide informaton about Project-related Report p. 454 EAO in the NEB Reconsideraton Hearing (MH-052-2018, Filing ID A6J6I4). BCEAO (EAC) No. 11 requires marine vessels and associated marine concerns. - Former NEB Conditon 131 Trans Mountain provide a report on completed actvites and results to BCEAO and Indigenous groups at ""least three months prior to the planned commencement of Operatons, and at one year and fve years afer commencement of Operatons." 1773 Marine Shipping NEB Trans Mountain is not responsible for sourcing operatng tankers, however it commits to discussing Reconsideraton Prior to Operatons Complete EEDI was discussed with Project shippers as part of meetng and updates afer the NEB the Energy Efcient Design Index (EEDI) as part of Trans Mountain's future discussions with shippers Report p. 390, 394 Reconsideraton Hearing. Energy efcient design and the need to reduce marine GHGs is also a on marine issues. common topic at the Marine Shipper Subcommitee meetngs in the context of escort tug procurement. For example shippers are supportve of considering energy efciency design optons as part of the escort tug procurement process. Meetngs with Trans Mountain Shippers are confdental (commercial in nature). A copy of some aspects of the tug escort RFP may be provided. 1807 Marine Shipping NEB To manage the increase in atmospheric sound levels, Trans Mountain has commited to ensuring Revised Final Project Lifecycle In Progress See Westridge Marine Terminal Regulatons and Operatons (WMTROG) and the Vessel Acceptance that all Project-related tankers and tugboats are fted with exhaust silencers similar to those already Argument s. 7.2.2.4 Standard (VAS) will be updated prior to Operatons. See Secton 5.6 (p. 23) of the Westridge Marine in place. This will limit the sound emited by all vessels passing through the Marine Regional Study p301 Terminal Regulatons and Operatons Guide (WMTROG) Atachment 6.5.2 of Trans Mountain Area (RSA) and calling at the Westridge Marine Terminal. While Trans Mountain cannot eliminate evidence in the NEB Reconsideraton Hearing (MH-052-2018, Filing ID A6J6H7): Limitng Light and sound from singular events such as horns, Trans Mountain will encourage vessel operators to follow Noise. See also Secton 2.7.2 (p. 11) of the Vessel Acceptance Standard (VAS) Masters Declaraton best practces that consider nuisance efects from such actvites and atempt to reduce or eliminate and Vessel Informaton Checklist (MH-052-2018, Filing ID A6L2A5). An updated VAS document will those nuisance efects to the greatest extent possible. also be fled with CER Conditon 134. 1825 Marine Shipping NEB In additon to the navigaton marks on the dock complex, Trans Mountain will ensure every tme a Technical Update #2 During Operatons Superseded by NEB 134 Identfed as part of the Westridge Marine Terminal Regulatons and Operatons Guide (WMTROG) tanker or barge calls at Westridge, it will be enclosed within an oil spill boom. The oil spill boom will - Recreatonal Boat Conditon fled as Atachment 6.5.2 of the NEB Reconsideraton Hearing (MH-052-2018), Filing IDs: WMTROG be marked with day and night navigaton marks and provide another visible means of warning for Trafc p20 (2018) A6J6H7, Requirement has been met, Secton 10.1 (p.44), 12.2.2.2 (p. 50), and Appendix B (p. recreatonal vessels. 86-88) of the WMTROG (2018). 1873 Marine Shipping NEB Trans Mountain intends to contnue to facilitate an optmized Juan de Fuca escort tug procurement Reconsideraton Prior to Operatons Complete This is a commercial negotaton. Outcomes will be made public through an announcement once the process through the Shippers Marine Subcommitee, that will evaluate the feasibility as to whether Report p. 51, 52 vessel procurement process is complete in 2021. escort tugs can partcipate in spill response. Trans Mountain will report back to the Board through Conditon 133 ( (Measure 2). 2114 Marine Shipping NEB Trans Mountain will develop a tug matrix for inclusion as part of its Tanker Acceptance Standard to NEB IR No. 1.59a Prior to Operatons Superseded by NEB 133, 134 Commitment addressed in Conditon 91 Plan for Marine Shipping-related Commitments (2017), OH- prescribe minimum tug capabilites required upon departure of the tanker. Conditon 001-2014, Filing ID A5R4K2, Conditon 91 (original), Marine Spill Preventon and Response Commitments, Conditon 91 Report (OH-001-2014) Secton 5.1 (p. 5-8): Tug Matrix. Updated Vessel Acceptance Standard will also be fled with CER Conditon 134. 2223 Marine Shipping NEB Trans Mountain will develop a procedure for vessel to vessel transfers. Both vessels will have NEB IR No. 3.063b Prior to Operatons In Progress Vessel to vessel transfer procedure will be created (WMT Operatons) and maintained as part of the Westridge Marine Terminal (WMT) Loading Masters on board who will establish and maintain ISLMS. communicatons prior to and during transfer operatons. Vessel to vessel transfer operatons will be contnuously monitored by WMT operatons staf. 2228 Marine Shipping NEB Trans Mountain will commit to include a secton on marine birds in its future Port and Terminal NEB IR No. 4.011a Prior to Operatons Complete See Secton 10.7 (p. 46) of the Westridge Marine Terminal Regulatons and Operatons Guide Book, and will be submited to the Termpol Review Commitee a minimum of 6 months prior (WMTROG) Atachment 6.5.2 of Trans Mountain evidence in the NEB Reconsideraton Hearing (MH- commencement of operatons. 052-2018, Filing ID A6J6H7): Bird Strikes. 2310 Marine Shipping T'Sou-ke First Naton Trans Mountain commits to contnue to support air quality initatves through Vancouver Fraser Port Reply Argument - During Operatons In Progress TM will contnue to highlight the Eco Acton program of Vancouver Fraser Port Authority (VFPA) to Authority DBA Port Metro Vancouver such as Eco Acton to limit marine emissions. Appendix A all vessels calling Westridge. See Westridge Marine Terminal Regulatons and Operatons (WMTROG) Comments on NEB and the Vessel Acceptance Standard (VAS) will be updated prior to Operatons. An updated VAS Draf Conditons - document will also be fled with CER Conditon 134. Conditon 19 2499 Marine Shipping Ditdaht First Naton, Trans Mountain will raise awareness among Project tankers about conditons near Swifsure Bank Reply Evidence 57.9 Prior to Operatons Complete See Secton 14.15 (p. 74) of the Westridge Marine Terminal Regulatons and Operatons Guide Pacheedaht First Naton with Project tanker operators in its Port Informaton and Terminal Operatons Manual (Measure 1). Aboriginal (WMTROG) Atachment 6.5.2 of Trans Mountain evidence in the NEB Reconsideraton Hearing (MH- Traditonal Marine 052-2018, Filing ID A6J6H7): Swifsure Bank. See also Secton 2.7.9 (p. 12) of the Vessel Acceptance Use p.57.12 line 3 Standard (VAS) Masters Declaraton and Vessel Informaton Checklist (MH-052-2018, Filing ID A6L2A5), An updated VAS document will also be fled with CER Conditon 134. 2705 Marine Shipping Environment Canada Trans Mountain commits that routne maintenance at the Westridge Marine Terminal will include EC P-IR No. 1.26 During Operatons Complete VFPA survey data published afer 3 year surveys completed. checking the water depth alongside each berth every few years, which will be coordinated with periodic routne topside and underwater dock inspectons. 2739 Marine Shipping NEB To mitgate the disrupton of use of travelways, Trans Mountain will provide regular updated Applicaton Volume During Operatons Complete Trafc Informaton on the Pacifc Pilotage Authority website: informaton on Project-related marine vessel trafc to shipping associatons, such as Chamber of 8A, 8A-367, htps://pilot.kleinsystems.com/public/PPA/PPA_CurrentTrafc.aspx (Accessed December 14, 2020). Shipping. Applicaton Volume Vessel trafc informaton also available through new Ocean Protecton Plan programs: Enhanced 8A, 8A-388, Maritme Situatonal Awareness Website: EMSA htps://tc.canada.ca/en/marine- Applicaton Volume transportaton/navigaton-marine-conditons/enhanced-maritme-situatonal-awareness-initatve- 8B, 6-2; Applicaton pilot-projects. Volume 8B, 5-3; 2740 Marine Shipping NEB To mitgate the efect of increased rail bridge operatons, Trans Mountain will provide regular Applicaton Volume During Operatons In Progress Trafc Informaton on the Pacifc Pilotage Authority website: updated informaton on Project-related marine vessel trafc to CN Rail. 8A, 8A-388; htps://pilot.kleinsystems.com/public/PPA/PPA_CurrentTrafc.aspx (Accessed December 14, 2020) Applicaton Volume VFPA Vessel Trafc Organizaton Service to be implemented 2022. Vessel trafc informaton will 8B, 5-3; likely be made accessible to CN Rail through a URL link.

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2744 Marine Shipping Termpol Review Commitee Trans Mountain will employ risk mitgaton measures for the TMEP operatons: Marine Terminal Applicaton Volume During Operatons In Progress The current WMT technician training program will be updated to enable contnued safe working personnel who are trained for the purpose. 8C TR 8C01 Termpol practces are employed with new equipment and processes. Training program material will be 3.1 - Introducton available through the ISLMS. p16 2745 Marine Shipping NEB Trans Mountain will employ risk mitgaton measures for the TMEP operatons: Tethered tugs and Applicaton Volume During Operatons Complete Tug use for berthing/unberthing is mandatory under the requirements of the Vancouver Fraser Port standby tugs to assist the tanker during berthing at the terminal. 8C TR 8C01 Termpol Authority. Trans Mountain has submited to updates to the VFPA for future info guide publicatons. 3.1 - Introducton See Port Informaton Guide: htps://www.portvancouver.com/wp-content/uploads/2020/06/2020- p16 06-12-PORT-INFORMATION-GUIDE-FINAL.pdf (URL accessed December 21, 2020). 2747 Marine Shipping Termpol Review Commitee Trans Mountain will employ risk mitgaton measures for the TMEP operatons: Loading platorm at Applicaton Volume During Operatons Superseded by NEB 134 Future Marine Terminal Operatons Plan as part of ISLMS. the berths drained to slop tanks and treated at shore. 8C TR 8C01 Termpol Conditon 3.1 - Introducton p16 2751 Marine Shipping Termpol Review Commitee Trans Mountain will employ risk mitgaton measures for the TMEP operatons: Overflling detecton Applicaton Volume During Operatons Complete See secton 12.10.4 (p. 58) and Secton 12.16 (p. 60) of the Westridge Marine Terminal Regulatons at the tanker vessel. 8C TR 8C01 Termpol and Operatons Guide (WMTROG) fled as atachment 6.5.2 to Trans Mountain evidence in the 3.1 - Introducton Reconsideraton Hearing (MH-052-2018, Filing ID A6J6H7). p16 2753 Marine Shipping Termpol Review Commitee Trans Mountain will employ risk mitgaton measures for the TMEP operatons: Operatonal Applicaton Volume During Operatons Complete See Secton 12.3.1 (p. 51) of the Westridge Marine Terminal Regulatons and Operatons Guide procedures to ensure that all systems work adequately prior to cargo transfer. 8C TR 8C01 Termpol (2018) fled as Atachment 6.5.2 to Trans Mountain evidence during the NEB Reconsideraton 3.1 - Introducton Hearing (MH-052-2018, Filing ID A6J6H7); see also Masters Declaraton and Vessel Informaton p16 Checklist, fled during the NEB Reconsideraton Hearing (MH-052, 2018 Filing ID A6L2A5) based on ISGOTT ship shore safety checklist and other WMT safety requirements as part of pre-transfer conference. 2754 Marine Shipping Termpol Review Commitee Trans Mountain will employ risk mitgaton measures for the TMEP operatons: Operatonal Applicaton Volume During Operatons Complete See Sectons 5.5 (p. 23), 12.4.1 (p. 51) and 12.6.1 (p. 53) of the Westridge Marine Terminal procedure for safe cargo transfer actvites both onboard the ship and at the terminal. 8C TR 8C01 Termpol Regulaton and Operatons Guide (WMTROG) fled as Atachment 6.5.2 with Trans Mountain 3.1 - Introducton evidence for the NEB Reconsideraton Hearing (MH-052-2018, Filing ID A6J6H7). p16 2755 Marine Shipping Termpol Review Commitee Trans Mountain will employ risk mitgaton measures for the TMEP operatons: A Loading Master Applicaton Volume During Operatons Complete Identfed as part of the Westridge Marine Terminal Regulatons and Operatons Guide (WMTROG) assigned to each loading tanker. 8C TR 8C01 Termpol and the Vessel Acceptance Standard (VAS) fled as part of the NEB Reconsideraton Hearing (MH- 3.1 - Introducton 052-2018), Filing IDs: WMTROG (2018) A6J6H7 and VAS (2018) A6L2A3, Requirement has been met; p16 updated VAS document will also be fled with CER Conditon 134, See Sectons 1.4 (p. 1), 2.7.1 (p. 11) and 4.4 (p. 17) of the WMTROG and Sectons 2.2.4 (p. 4) of the VAS (2018). 2756 Marine Shipping Termpol Review Commitee Trans Mountain will employ risk mitgaton measures for the TMEP operatons: Fire preventon and Applicaton Volume During Operatons Complete Identfed as part of the Westridge Marine Terminal Regulatons and Operatons Guide (WMTROG) protecton both onboard the vessel and at the marine terminal. 8C TR 8C01 Termpol fled as Atachment 6.5.2 in the NEB Reconsideraton Hearing (MH-052-2018), Filing ID: WMTROG 3.1 - Introducton (2018) A6J6H7, See Sectons 6.8 (p. 29), 9.13 (p. 43), 13.3 (p. 61) and 13.4 (p. 62) of the WMTROG. p16 2758 Marine Shipping Termpol Review Commitee Although the use of Ore-bulk-oil (OBO) vessels has decreased since the 1980s it cannot be excluded Applicaton Volume During Operatons In Progress An updated VAS document will also be fled with CER Conditon 134. that these vessel types are also used as oil carriers. However, Trans Mountain will only allow tankers 8C TR 8C06 Termpol to call at the Westridge Marine Terminal for oil transport. 3.8-Casualty Data p17 2762 Marine Shipping Termpol Review Commitee Prior to any cargo transfers involving a tanker berthed at the Terminal, Trans Mountain commits to Applicaton Volume During Operatons Superseded by NEB 134 Identfed as part of the Westridge Marine Terminal Regulatons and Operatons Guide (WMTROG) conductng a two stage tanker acceptance process as follows 1) tanker pre-screening for scheduling 8C TR 8C07 Termpol Conditon and the Vessel Acceptance Standard (VAS) Masters Declaraton and Vessel Informaton Checklist purposes 2) tanker physical inspecton. 3.9-Ship fled as part of the NEB Reconsideraton Hearing (MH-052-2018). Filing IDs: WMTROG (2018) Specifcatons p15 A6J6H7 and VAS (2018) A6L2A3, VAS Masters Declaraton and Vessel Informaton Checklist (2018) A6L2A5, Requirement has been met; updated VAS document will also be fled with CER Conditon 134, See Sectons 4.4.2 (p. 17), 5.2.3.6 (p. 21) of the WMTROG and Sectons 3.1.1 (p. 5), 3.3 (p. 6) and 3.5 (p. 8) of the VAS (2018). 2779 Marine Shipping Termpol Review Commitee Trans Mountain will contnue to operate the meteorological staton at the Westridge Marine Applicaton Volume Prior to Operatons In Progress Terminal management system specifcatons, once the system is selected, will include ofce display Terminal to enhance the safety of mooring vessels during windy conditons. To enable this enhanced 8C TR 8C08 Termpol with real tme observatons of weather parameters. safety measure, a site ofce display can be installed to enable real tme observatons of weather 3.10-Site Plans p48 parameters, partcularly wind speed and directon. 2928 Marine Shipping Environment Canada Trans Mountain will ensure all tankers and barges operatng at Westridge Marine Terminal are GoC EC IR No. 1.067 During Operatons Superseded by NEB 134 Westridge Marine Terminal Regulatons and Operatons Guide; also identfed as part of the Masters Vapour Emission Control (VEC)-equipped. This practce will contnue in future. Conditon Declaraton and Checklist - both documents fled as part of the NEB Reconsideraton Hearing (MH- 052-2018). Filing IDs WMTROG (2018) (A6J6H7) and VAS Masters Declaraton and Checklist (2018) (A6L2A5, Update will be fled with CER Conditon 134, See Secton 12.10 WMTROG (2018) (p. 57) and Secton 2.5.3 (p. 8) VAS Masters Declaraton and Checklist (2018). 3002 Marine Shipping NEB Trans Mountain will contnue to provide informaton about Trans Mountain Project-related shipping NEB IR No. 3.008a- Prior to Operatons Superseded by NEB 131 Trans Mountain has prepared and consulted on an engagement plan that meets the requirements of to other marine users. Specifcally: provide regular updated informaton on Project-related marine Atachment 1 Conditon NEB Conditon 131 (Marine Public Outreach). To date TERMPOL review commitee members, vessel trafc to fshing industry organizatons, Aboriginal communites and other afected including Transport Canada, Vancouver Fraser Port Authority, BC Coast Pilots, Pacifc Pilotage stakeholders, where possible, through the Chamber of Shipping of BC; initate a public outreach Authority have reviewed the plan as well as a new poster that has been created with safety program prior to Project operatons phase. Communicate any applicable informaton on Project- informaton about boatng safely near deep draf vessels. Trans Mountain has also met with related tming and scheduling with fshing industry organizatons, Aboriginal communites and other representatves of the Commercial Shipping sector to initate a dialogue about the project. afected stakeholders. Engagement will contnue with marine waterway users, including Aboriginal groups, as per the tactcs outlined in the plan.

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3011 Marine Shipping NEB To enhance preventve measures currently in place through applicable legislaton and regulatons, NEB IR No. 3.010a- During Operatons Complete Recommendaton 1: See Secton 14.14 (p. 74) of the Westridge Marine Terminal (WMTROG) fled as Trans Mountain will implement the May 2013 recommendatons of the Canadian Marine Pilot’s Atachment 1 Atachment 6.5.2 with Trans Mountain evidence in the NEB Reconsideraton Hearing (MH-052-2018, Associaton Submission to the Tanker Safety Expert Panel. Filing ID A6J6H7); see also Sectons 2.4.2 (p. 7) and 2.7.8 (p. 12) of the Vessel Acceptance Standard (VAS) Masters Declaraton and Vessel Informaton Checklist (MH-052-2018, Filing ID A6L2A5). An updated VAS will be fled in compliance with CER Conditon 134 Recommendaton 2: See Secton 14.14 (p. 74) of the Westridge Marine Terminal (WMTROG) fled as Atachment 6.5.2 with Trans Mountain evidence in the NEB Reconsideraton Hearing (MH-052-2018, Filing ID A6J6H7) Recommendaton 3: See Pacifc Pilotage Authority (PPA) response to Friends of Ecological Reserves IR No. 3.11.1.5 IR #23 during the NEB Reconsideraton Hearing (MH-052-2018, Filing ID A6Q5E5). See also map of TMEP Marine Shipping Spill Preventon and Response Overview (November 13, 2019) [PDF] which identfes current and future pilot embarkaton / disembarkaton points Recommendaton 4: See Appendix 4.1 (p. 12 - Rules for Liquid Bulk Carriers) submited in evidence submited by the Pacifc Pilotage Authority in the NEB Reconsideraton Hearing (MH-052-2018, Filing ID A6J5J1) Recommendaton 5: Funding for new weather bouys was announced by the Government of Canada as part of the Ocean Protecton Program in 2018: htps://www.canada.ca/en/transport-canada/news/2018/05/government-of-canada-introduces- new-measures-and-enters-into-new-partnerships-for-safer-maritme-navigaton-and-emergency- response-through-the-ocea.html (accessed December 14, 2020). 3013 Marine Shipping NEB Trans Mountain will ensure shippers have appropriate processes in place to address vessel damage, NEB IR No. 3.010a- During Operatons Complete Identfed as part of the Westridge Marine Terminal Regulatons and Operatons Guide (WMTROG) gear loss or injury. Atachment 1 and the Vessel Acceptance Standard (VAS) fled as part of the NEB Reconsideraton Hearing (MH- 052-2018), Filing IDs: WMTROG (2018) A6J6H7 and VAS (2018) A6L2A3, Requirement has been met; updated VAS document will also be fled with CER Conditon 134, See Sectons 1.2.4.1 (p. 11), 3.2.2 (p. 14) and 3.3 (p. 15) of the WMTROG (2018) and Secton 3.2.5.3 (p. 6) of the VAS (2018). 3023 Marine Shipping NEB Trans Mountain agrees that the protecton of Tsartlip First Naton's sensitve aquatc environments is NEB IR No. 3.010a- During Operatons In Progress See Sectons 2.7.2 (p. 11), 10.2 (p. 44) and 14.5 (p. 68) of Atachment 6.5.2 of Trans Mountain critcal. In order to manage potental efects from air, greenhouse gas (GHG), noise (including Atachment 1 evidence for the NEB Reconsideraton Hearing (MH-052-2018, Filing ID A6J6H7) See Secton 3.1.1 (p. underwater noise) and bilge discharge related polluton, Trans Mountain has implemented the 13) of the Vessel Acceptance Standard (2018) fled during the Reconsideraton Hearing (MH-052- following mitgaton measures: all Project-related tankers are required to adhere to federal standards 2018, Filing ID A6L2A3) See Commitment ID 1,807. The VAS will be updated to refect this that may reduce air emissions, including standards for bunker fuel; all Project-related tankers are requirement and fled in compliance with CER Conditon 134. required to adhere to federal standards that may reduce GHG emissions, including standards for bunker fuel; all Project-related marine vessels will be fted with exhaust silencers similar to those already in use through industry standards. 3497 Marine Shipping Environment Canada Trans Mountain will implement the following mitgaton measures at the Westridge Marine Terminal GoC EC IR No. 2.050 During Operatons Superseded by NEB 82 See secton 10.7 (p. 46) of the Westridge Marine Terminal Regulatons and Operatons Guide to reduce potental efects from artfcial lightng: during migratory bird periods and/or during Conditon (WMTROG) fled as atachment 6.5.2 to Trans Mountain evidence in the Reconsideraton Hearing extreme weather events, bird strike warnings will be issued to berthed vessels with a request to (MH-052-2018, Filing ID A6J6H7) See CER Conditon 82 Compliance Filing: Lightng Emissions reduce deck lightng; inform all operators of Project-related vessels of the hazards regarding bird Management Plan for Westridge Marine Terminal (OH-001-0214, Filing ID A5L7I9). See Secton 4.0 strikes occurring at night because of deck lightng or inclement weather and bird collisions with page 10 of the fling. Westridge Marine Terminal structures; report all bird strikes/collisions immediately to Trans Mountain’s Lead Actvity Inspector and the Environmental Inspector. Bird strikes/collisions during operatons will be reported to Trans Mountain's Operatons Supervisor. 29 Operatons City of Abbotsford Trans Mountain will monitor blastng used in aggregate mining at two quarries near Sumas Mountain City of Abbotsford IR During Constructon Superseded by Commitment addressed through Trans Mountain’s Pipeline Integrity Management Program. The during and post constructon to ensure that pipeline integrity is not compromised. No. 1.20b Legal/Regulatory program addresses the monitoring requirements of blastng actvites around the pipeline to ensure Requirement that pipeline integrity is not compromised. 154 Operatons City of Burnaby Trans Mountain will incorporate expansion of the Burnaby Terminal into its existng storm water City Burnaby IR No. During Operatons In Progress monitoring program, whereby Trans Mountain will contnue to monitor any fash drainage events in 1.04.05c, Volume an efort to identfy potental efects and implement necessary measures to reduce or avoid Project- 5A, 7-387. related efects to the Eagle Creek watershed. 262 Operatons Adams Lake Indian Band In the event that constructon-related issues persist past fve years of monitoring, the Post- ALIB IR No. 1.6.08a During Operatons Superseded by NEB 151 To the extent that there are residual issues arising from the the Year 5 PCEM, Trans Mountain will Constructon Environmental Monitoring (PCEM) program will contnue untl measures are Conditon contnue to address to track and address such issues. considered to be efectve and the issue resolved. 264 Operatons Adams Lake Indian Band In the unlikely event of a spill along the Right-of-Way that results in contaminaton of food fsh for ALIB IR No. 1.3.38 During Operatons Superseded by The contngent protocols that are expressed in the commitment will apply into the operatonal Aboriginal communites, and should residual environmental efects or contaminaton remain, Trans Legal/Regulatory phase, including within the context of the CER's Remediaton Process Guide. Mountain commits to consultng with afected Aboriginal communites to identfy mutually Requirement acceptable in-kind or replacement measures to replace or ofset impacts directly related to and caused by the spill. 281 Operatons BC Parks, NEB For maintenance and operatons purposes,Trans Mountain will work with BC Parks to identfy roads BC Parks boundary During Operatons Scoping that may need to be reactvated and will determine which access controls (e.g., gates) may be adjustment warranted. applicaton (August 2014) 282 Operatons BC Parks, NEB Trans Mountain will ensure that access to any point on the pipeline is available year round in the BC Parks boundary During Operatons Scoping event of an operatonal issue or in the unlikely event of a leak. adjustment applicaton (August 2014) 364 Operatons NEB Trans Mountain will monitor the conditon of the right-of-way in a tmely manner afer any heavy Applicaton Volume During Operatons Superseded by The conditon of the right-of-way is periodically monitored by aerial patrol, with any required rainfall events to look for erosion or washout areas and remediate any damage to protect the 5A, 7-530. Legal/Regulatory remedial actons taken as necessary including within the context of Trans Mountain's pipeline integrity of the pipeline. Requirement integrity management program.

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399 Operatons Tsleil-Waututh Naton Trans Mountain commits to fling informaton concerning any spills or releases from the existng Tsleil-Waututh Prior to Constructon Complete Trans Mountain fulflled this commitment in a follow-up submission to the NEB dated August 1, Trans Mountain pipeline , how much released product made its way into a water body, and the Naton F-IR No. 2014 (Filing ID A62083, Exhibit B247-36). Environmental efects of the release. 1.2.1.5.01a 414 Operatons Chris Amy Trans Mountain will run regular cleaning pigs through the pipeline to mobilize any deposits to Amy C IR No. 1.6b During Operatons Superseded by Commitment is addressed through Trans Mountain's Pipeline Integrity Management program. prevent internal corrosion. Trans Mountain will perform in-line inspecton as outlined in Volume 4C Legal/Regulatory Secton 8.1.4 of the Applicaton to monitor for metal loss due to internal corrosion. Trans Mountain Requirement will complete feld inspectons of any anomalies that meet Trans Mountain’s inspecton criteria and will complete any required repairs. 416 Operatons City of Burnaby Annual risk assessments will consider internal corrosion, external corrosion, cracking, third party City Burnaby IR No. During Operatons Superseded by Commitment addressed through Trans Mountain's pipeline integrity management program. damage, material defects, outside forces and operator error. 1.46.04m Legal/Regulatory Requirement 417 Operatons City of Burnaby Chemical dispersants would not be stored at Westridge Terminal. City Burnaby IR No. During Operatons In Progress 1.26.08b 418 Operatons City of Burnaby Depth of cover will be monitored every 5 years during close interval cathodic protecton surveys and City Burnaby IR No. During Operatons Superseded by Commitment addressed through Trans Mountain's pipeline integrity management program. any hazards resultng from low depth of cover will be addressed. 1.46.04h Legal/Regulatory Requirement 420 Operatons City of Burnaby Risk assessments will be performed annually on the pipelines and every 3 years on facilites. City Burnaby IR No. During Operatons Superseded by Commitment addressed through Trans Mountain's pipeline integrity management program. 1.46.04 hh Legal/Regulatory Requirement 421 Operatons City of Burnaby Trans Mountain will complete a baseline natural hazard assessment of the TMEP system within the City Burnaby IR No. During Operatons Superseded by NEB 66, 147 This operatonal commitment has been overtaken by Conditon 147. Geohazards during frst year of operaton and incorporate the identfed natural hazard sites into the established natural 1.46.04 p Conditon constructon phase already addressed under Conditon 66. hazard database. 422 Operatons City of Burnaby Trans Mountain will monitor corrosion growth rates through successive in-line inspecton tool runs City Burnaby IR No. During Operatons Superseded by Commitment addressed through Trans Mountain's pipeline integrity management program. to ensure that the pipe remains safe to operate. 1.46.04 w Legal/Regulatory Requirement 423 Operatons City of Burnaby Trans Mountain will monitor for metal loss, pipe movement, mechanical damage, cracking and City Burnaby IR No. During Operatons Superseded by Commitment addressed through Trans Mountain’s Pipeline Integrity Management Program. The material defects on a nominal 5 year interval using an in-line inspecton program. 1.46.04 n Legal/Regulatory management of Line 2 will be rolled into the existng program that includes running ILI tools on a Requirement maximum 5-year interval that monitor for all of the hazards listed. 424 Operatons City of Vancouver Trans Mountain will adaptvely manage potental residual efects associated with changing climate City of Vancouver IR During Operatons Superseded by Commitment addressed through Trans Mountain’s Pipeline Integrity Management Program. The through the Natural Hazards Management Program. During operatons of the Project, it is expected No. 1.06.02a Legal/Regulatory management of Line 2 will be rolled into the existng program that includes the original baseline that Trans Mountain will be adaptve in their management of the pipeline and schedule Requirement assessment of geohazards, and then the contnuing ground inspectons, depth of cover surveys, and maintenance actvites to accommodate local Environmental conditons and implement the other assessments to contnually monitor the geohazards and adapt tmelines due to actual appropriate protecton measures to suit local Environmental conditons thereby reducing the conditons. potental Environmental efects. 425 Operatons C.G.L.A.P. - Collaboratve Trans Mountain is commited to provide advance notce in a reasonable and practcal manner, and to CGLAP IR No. 2.9c During Operatons Superseded by Trans Mountain remains fully cognizant of and will contnue to abide by the expectatons set out in Group of Landowners control work hours to minimize the disrupton to the owner’s use of their land in accordance with Legal/Regulatory the CER's O&M Guidelines including in relaton to landowner consultaton and reasonable notce. Afected by Pipelines the NEB Operatons and Maintenance Actvites Guidelines. Requirement 426 Operatons Natural Resources Canada Trans Mountain will monitor fooding advisories and perform additonal aerial and ground patrols GoC NRCan IR No. During Operatons Superseded by Commitment addressed through Trans Mountain’s Pipeline Integrity Management Program. The during high river fow conditons but there are currently no plans to perform real tme monitoring of 1.03.7 Legal/Regulatory management of Line 2 will be rolled into the existng program that includes real tme fow specifc river crossing sites. Requirement monitoring of food advisories to perform additonal aerial and ground patrols during high fow conditons where required. 428 Operatons New Democratc Party of Trans Mountain will dispatch personnel for the purpose of preventng spills on a routne basis NDP IR No. 1.1.1d During Operatons Superseded by Commitment addressed through the pipeline integrity, pipeline maintenance and repair, and Canada including to complete integrity digs, preventve maintenance, clearing, signage, inspecton, response Legal/Regulatory pipeline protecton programs. to unauthorized actvity reports near the pipeline, and many other varied tasks. Requirement 429 Operatons North Shore NOPE Trans Mountain will contnue to operate a learning management system to track and document all NSNOPE IR No. R- During Operatons Superseded by Trans Mountain contnues to employ an on-line learning management system as an efcient means employee training. 1.17b Legal/Regulatory to deliver and track training. Requirement 430 Operatons Upper Nicola Band Trans Mountain will complete in-line inspectons with a high-resoluton ultrasonic crack detecton Upper Nicola Band During Operatons In Progress Trans Mountain confrms that the 24” Darfeld to Black Pines reactvated segment will have either tool within two years of start-up of the Darfeld to Black Pines segment. IR No. 1.08h an ultrasonic crack detecton inspecton, or an EMAT crack detecton inspecton, completed within two years of start-up. 431 Operatons Upper Nicola Band Trans Mountain will monitor locatons with risk of slope movement as part of its Natural Hazard Upper Nicola Band During Operatons Superseded by Commitment is addressed through Trans Mountain's pipeline integrity management program. program as outlined in Secton 8.15 of Volume 4C of the applicaton. Where recommended as a IR No. 1.08o Legal/Regulatory result of engineering assessments, Trans Mountain will install instruments to monitor slope Requirement movement or to monitor pipeline strain to ensure the pipeline is not being damaged by soil movements. 434 Operatons NEB Any product moved in the pipeline must meet Trans Mountain’s tarif requirements which include Part 2 – Consultaton During Operatons Superseded by The prevailing Petroleum Quality Specifcatons are set out in the Rules and Regulatons of the Trans the following limitatons on product qualites: a maximum temperature of 38°C; a maximum density Update No. 1, 2-66 Legal/Regulatory Mountain Petroleum Tarif, as posted on the company's external website and as kept on fle with the of 940 kg/m3 (specifc gravity of 0.94); a maximum viscosity of 350 centstokes at Reference Requirement CER. Temperature; maximum impurites (botom sediments and water) of 0.5% of volume; and maximum Reid Vapour Pressure of 103 kPa.

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435 Operatons NEB As is the case on the existng Trans Mountain system, comprehensive integrated procedures will Part 2 – Consultaton During Operatons Superseded by Commitment is addressed through Trans Mountain's Control Center Management Program. ensure that batches are reliably injected and Trans Mountain Pipeline (ULC) delivered in accordance Update No. 1, 2-47 Legal/Regulatory with pumping instructons issued to the CCOs by the Shipper Services Department. Requirement 437 Operatons NEB Trans Mountain will commit to complete integraton of all inspecton data sets with the fnal NEB IR No. 1.89d During Operatons Superseded by Commitment addressed through Trans Mountain’s Pipeline Integrity Management Program. The integraton to be complete within the frst two years of operaton or following completon of the dig Legal/Regulatory management of the reactvated pipe will be rolled into the existng program that includes program for the crack inspecton. Requirement integraton of all inspecton data sets to complete risk analysis and management of associated hazards. For the Hinton to Hargreaves reactvaton segment, Trans Mountain commits to having this process in place within the frst two years of operaton. 438 Operatons NEB Trans Mountain will review its existng operatons (i.e., staf levels, operatons facilites, pipeline Pre-Applicaton During Operatons In Progress protecton and integrity programs) and will make appropriate adjustments to support the proposed Project Descripton, expanded TMPL system. p 1. 439 Operatons NEB Trans Mountain will track GHG emissions in Alberta and Britsh Columbia during the operaton of the NEB IR No. 1.32 During Operatons Superseded by Tracking and reportng is carried out under the Alberta Specifed Gas Emiters Regulaton and the pipeline once constructon has been completed. In compliance with federal and provincial GHG Legal/Regulatory B.C. Greenhouse Gas Emission Reportng Regulaton. reportng requirements, Trans Mountain will report direct annual operatng GHG emissions from Requirement facilites which meet or exceed the reportng thresholds. 467 Operatons NEB If the atributable GHG emissions due to TRans Mountain’s BC operatons in a reportng year exceed NEB IR No. 3.018a During Operatons Superseded by Tracking and reportng is carried out as appropriate under the B.C. Greenhouse Gas Emission the reportng threshold of 10,000 tonnes CO2e, a GHG report will be prepared and submited for the Legal/Regulatory Reportng Regulaton. Westridge Marine Terminal. Requirement 509 Operatons NEB Trans Mountain will complete baseline in-line inspecton (ILI) surveys for the Westridge Delivery lines NEB IR No. 3.103, During Operatons Superseded by NEB 143 This commitment has been overtaken by the baseline ILI requirements set out in Conditon 143. in accordance with Secton 8 of Volume 4C. Volume 4C, Secton Conditon 8 (Filing ID A3S1L1) 549 Operatons Environment Canada Trans Mountain will review the requirements of the Guideline and Specifcaton for Outdoor Lightng GoC EC IR No. 2.134 Prior to Constructon Complete at Parks Canada and consider a future project to revise the existng lightng at Jasper Pump Staton. 727 Operatons Township of Langley Trans Mountain commits to maintain pavement cuts for a minimum of one year afer the work is Langley IR No. During Operatons Scoping completed. 2.19.b 737 Operatons Edward Farquhar Trans Mountain is commited to adding additonal procedures to more specifcally address slack line Farquhar T IR No. Prior to Operatons Superseded by NEB 135 This commitment has been overtaken by Conditon 135 and associated fling requirements. fow conditons to the existng Trans Mountain procedures. Trans Mountain will have these 2.2.1f Conditon procedures completed and in use prior to the operaton of the expanded pipeline system. 738 Operatons Edward Farquhar Trans Mountain is commited to adding additonal procedures to more specifcally address column Farquhar T IR No. Prior to Operatons Superseded by NEB 135 This commitment has been overtaken by Conditon 135 and associated fling requirements. separaton prior to a pipeline start-up would be a useful enhancement to the existng procedures. 2.2.1h Conditon Trans Mountain will have these procedures completed and in use prior to the operaton of the expanded pipeline system. 739 Operatons Edward Farquhar Trans Mountain will ensure that a review of shut-down procedures, including the ratonale for Farquhar T IR No. Prior to Constructon Complete selectng a 10-minute rule or another rule as may be appropriate, is part of the consultaton 2.2.4a; Province BC program to be undertaken with the Province of BC. IR No. 2.20c 740 Operatons Edward Farquhar Trans Mountain will perform the API 1149 calculatons during the detailed engineering and design Farquhar T IR No. Prior to Operatons Superseded by NEB 115 Commitment will be addressed in Conditon 115 SCADA and leak detecton system design. Conditon phase, likely in late 2016, assuming the current overall Project schedule is maintained. 2.2.8a Conditon 115 inital fling is due prior to operatons. 752 Operatons City of Vancouver Trans Mountain will, in 2015, be installing a second complementary Computatonal Pipeline City of Vancouver IR Prior to Constructon Superseded by NEB 115 This commitment has been overtaken by Conditon 115 (and more specifcally by (b)(i)(1) of that Monitoring (CPM) system that will operate in parallel with the existng system. The new CPM system No. 2.09.2i Conditon conditon). will use a diferent technology to recognize leaks. 756 Operatons Katzie First Naton Trans Mountain will provide a safe water supply to Aboriginal groups and individuals during the Katzie FN IR No. 2 Prior to Constructon Superseded by NEB 72 This commitment was folded into the Groundwater Management Plan that was fled by Trans period that a drinking water advisory is in place to mitgate any efects of the Project on surface and 2.12a Conditon Mountain on March 29, 2018 under Conditon 72 (Filing ID A90966, Atachment 9, Secton 4.11 on groundwater supply. PDF Page 15). 769 Operatons Province of Britsh Columbia Trans Mountain will update its existng Integrity Management Program (IMP) and scope of work Province BC IR No. During Operatons Superseded by Commitment is addressed through Trans Mountain's pipeline integrity management program. document that prescribes the frequency patrol for the entre Trans Mountain pipeline right-of-way 2.17 Legal/Regulatory as necessary for the Project. Requirement 770 Operatons Province of Britsh Columbia Trans Mountain commits to introducing a leak detecton procedure directng the Control Centre Province BC IR No. During Operatons Superseded by NEB 115 This commitment will be addressed in Trans Mountain's response to Conditon 115 (per Operator (CCO) to perform a controlled shutdown of the pipeline when a leak cannot be ruled out in 2.20 Conditon requirements of (b)(ix)). a given tme period afer inital indicaton. 779 Operatons Province of Britsh Columbia Trans Mountain's Waste Management Plan and Environment Plan will be reviewed and enhanced Province BC IR No. Prior to Operatons Superseded by Commitment will be addressed through Trans Mountain's Pipeline Environment Management prior to the in-service date of the expanded pipeline system to ensure the Plans adequately address 2.38 Legal/Regulatory program. the needs of the expanded pipeline and addresses all future regulatory requirements. Requirement 794 Operatons Upper Nicola Band As part of its Integrity Management Program, Trans Mountain has commited to contnuing crack Upper Nicola Band Project Lifecycle Superseded by Commitment is addressed through Trans Mountain's pipeline integrity management program. assessments and axial faw assessments on a maximum interval of 5 years following the baseline IR No. 2.09d Legal/Regulatory assessments. Requirement 823 Operatons Fraser Valley Regional Trans Mountain commits to delivering quarterly reports on odour complaints from Sumas Tank FVRD IR No. 2.17b Project Lifecycle Complete District Terminal to the Fraser Valley Regional District (FVRD) for the operatonal lifetme of the Trans Mountain Expansion Project (TMEP).

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850 Operatons Fraser Valley Regional Trans Mountain commits to delivering quarterly reports on odour complaints/complaints/air quality FVRD IR No. 2.17 During Operatons Complete District from all facilites and pipeline within the Fraser Valley Regional District (FVRD) to the FVRD for the operatonal lifetme of the Trans Mountain Expansion Project (TMEP). 863 Operatons Upper Nicola Band Through its Pipeline Integrity Management Plan, Trans Mountain will contnue to monitor the Upper Nicola Band Project Lifecycle Superseded by Commitment is addressed through the natural hazard monitoring and control standard under Trans integrity of all watercourse crossings on the current and expanded Trans Mountain Pipeline system. IR No. 2(c).02.p Legal/Regulatory Mountain's pipeline maintenance and repair program. Requirement 875 Operatons NEB Trans Mountain will run the ultrasonic (USCD) ILI inspecton as soon as possible once the pipeline is NEB IR No. 4 42b During Operatons Superseded by NEB 143 Commitment overtaken by Conditon 143 and associated tme lines. in service. Trans Mountain does not expect to take the full two years to complete inspectons; Conditon however, to account for tool availability and other factors that may be outside of Trans Mountain’s control, Trans Mountain commited to a 2 year window to complete inspectons. 876 Operatons NEB Trans Mountain will complete inspectons on a more frequent basis if fatgue growth calculatons NEB IR No. 4 43a During Operatons Superseded by Commitment is addressed through Trans Mountain's pipeline integrity management program. show that a shorter inspecton interval is required. Legal/Regulatory Requirement 878 Operatons NEB Trans Mountain will also inspect the reactvated segments, within the frst two years of operaton, Applicaton Volume During Operatons Superseded by NEB 143 Commitment will be addressed in Conditon 143, Baseline Inspectons to be fled within six months with a specialized high-resoluton ultrasonic tool, to verify that no detrimental crack defects were 4A-117. Conditon afer completng each inspecton. initated and/or grew as a result of the hydrostatc testng. 931 Operatons Simon Fraser University Trans Mountain will conduct ambient air quality monitoring at the Westridge Marine Terminal and SFU IR No. 2.5.19.4 During Operatons Superseded by NEB 52 The Air Emissions Management Plan for the Westridge Marine Terminal has been fled and emissions source tracking of contaminants of potental concern. Contaminants of potental concern Conditon approved under Conditon 52 (A82640 and A85416). that will be directly measured include partculate mater (PM10 and PM2.5), carbon monoxide (CO), nitrogen dioxide (NO2), sulphur dioxide (SO2), hydrogen sulphide (H2S) and volatle organic compounds (VOCs). 946 Operatons Peters Band Trans Mountain will implement all weed and pest treatments on the right-of-way in BC in accordance Peters Band IR No. Prior to Constructon Superseded by Commitment is addressed through Trans Mountain's vegetaton management plan as contained in with the Integrated Pest Management (IPM) Regulaton of BC (BC Reg. 604/2004) as part of the BC 2(b). 2.5c Legal/Regulatory its environment manual. Integrated Pest Management Act (Government of BC 2003 and 2004). Requirement 948 Operatons Peters Band In the unlikely event that released petroleum impacts groundwater, Trans Mountain will implement Peters Band IR No. Prior to Operatons Superseded by Trans Mountain is fully cognizant of and will comply with the contngent protocols described in the a remediaton program to recover petroleum and treat contaminated water to meet stringent 2(b). 3.04a Legal/Regulatory CER's Remediaton Process Guide. government criteria. Requirement 997 Operatons Fraser Valley Regional Trans Mountain will cover required internal pipeline protecton inspector costs within the right-of- FVRD IR No. 1.36c During Operatons Scoping District way for new Fraser Valley Regional District (FVRD) road and utlity crossings. 1522 Operatons Katzie First Naton Trans Mountain will contnue to conduct Westridge loading operatons inside a pre-deployed boom, Katzie FN IR No. During Operatons In Progress which would contain a release. Additonal boom and response equipment, including skimmers, will 1.11b be maintained on site. 1529 Operatons NEB The Westridge Marine Terminal will contnue to have operatons staf on site at all tmes. Applicaton Volume During Operatons In Progress The Post-Expansion Workforce Plan provides that Westridge Marine Terminal will have operatons 2, 2-22. staf on a 24/7 basis. 1665 Operatons City of Burnaby Trans Mountain is commited to ensuring that testng at the Burnaby Terminal will have no impact City Burnaby IR No. During Operatons In Progress on residental power or water systems. 1.25.03d 1732 Operatons City of Chilliwack Trans Mountain commits to adoptng to its Pipeline Integrity Management Program (IMP), as Route Variance Prior to Constructon Superseded by Trans Mountain maintains a pipeline integrity management program per Secton 40 of the Onshore described in the response to City of Chilliwack IR 1.3.2b. Chilliwack BC Hydro Legal/Regulatory Pipeline Regulatons. City of Chilliwack IR Requirement 1.3.2b 1733 Operatons City of Chilliwack Trans Mountain commits to installing a second complementary contnuous pipeline monitoring Route Variance Prior to Constructon Superseded by NEB 115 Conditon 115 sets the expectaton for a secondary CPM system that will operate in parallel (at (CPM) system that will operate in parallel with the existng system. Chilliwack BC Hydro Conditon subparagraph (b)(i)). City of Chilliwack IR 1.3.3h 1859 Operatons Hannah Varto Trans Mountain will require the Control Centre Operator to shut down and isolate the pipeline if the Varto H IR No. During Operatons Scoping risks determined from this evaluaton are moderate or higher in order to reduce potental 1.2.E2.3 consequences. A feld inspecton process will be in place to inspect the pipeline and facilites for possible damage prior to authorizing the restart of the pipeline following a safety shutdown. 2108 Operatons BC Parks To access the right-of-way Trans Mountain will use low-ground-pressure tracked machines to 08 BC Parks IR 5 Jan During Operatons Scoping facilitate access year round. For maintenance and operatons purposes, Trans Mountain will work 2015 (Informal IRs, with BC Parks to identfy roads that may need to be reactvated and will determine which access Request No. 3) controls (e.g., gates) may be warranted. 2140 Operatons Province of Britsh Columbia Trans Mountain will investgate and respond to neighbouring water well owner complaints Province BC IR No. During Operatons Scoping potentally related to the pipeline operatons, regardless of available pre- or post-constructon 1.1.38 testng requirements. 2147 Operatons Province of Britsh Columbia As part of its Integrity Management Program, Trans Mountain has commited to contnuing crack Province BC IR No. During Operatons Superseded by Commitment is addressed through Trans Mountain's Pipeline Integrity Management program. assessments and axial faw assessments on a maximum interval of 5 years following the baseline 2.2.18b Legal/Regulatory assessments with an objectve to detect and repair any features of concern before they become a Requirement threat to fail in service.

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2161 Operatons NEB Trans Mountain will commit to complete integraton of all inspecton data sets within the frst two NEB IR No. 1.89d During Operatons Superseded by Commitment is addressed through Trans Mountain's Pipeline Integrity Management program. years of operaton or following completon of the dig program for the crack inspecton. Legal/Regulatory Requirement 2274 Operatons NEB Once the Project is in operaton, Trans Mountain will cover the costs of Trans Mountain employees NEB IR No. 6.19 During Operatons Scoping required to monitor and assist the City of Edmonton in undertaking facility constructon proximate to the expanded Trans Mountain Pipeline system. 2351 Operatons The City of Edmonton Trans Mountain will waive the cost of its inspector anytme such inspector is present to monitor Reply Argument - During Operatons Scoping work done near the pipeline in Whitemud Drive. Trans Mountain agrees that this is a reasonable Appendix B - request, and is willing to commit to waiving these costs in the circumstances described. Trans Intervenor Proposed Mountain will update its commitment tracking table accordingly, and, as such, a conditon on the Conditons - approval is not necessary. Conditon 9d 2447 Operatons City of Burnaby Trans Mountain commits to establish its process for the identfcaton of hazards in facilites. In City Burnaby IR No. During Operatons Superseded by These maters are addressed under Trans Mountain's Facilites Integrity Management Program. additon to risk assessments which will be conducted every three years, Trans Mountain commits to 1.13.04b Legal/Regulatory Within this context, there is already an established process for hazard identfcaton and the conduct regular inspecton and testng of hazard control measures that will be managed through a Requirement cataloguing of such hazards in a computer-based system. Risk assessments are periodically computerized maintenance management system. conducted with the highest risks identfed and control measures confrmed. Trans Mountain will also be integratng the expansion facilites into its existng computerized maintenance management system. 2495 Operatons Government of Canada If a drinking water advisory were to be issued as a result of a spill, Trans Mountain will commit to Reply Evidence During Operatons Scoping working with the leadership of the Aboriginal community to identfy surplus capacity from other 5.2.3.1.3 Human drinking water sources in the area, while suitable replacement alternatves are established and Health Risk implemented. Assessment p.45-73 Line 40 2506 Operatons City of Burnaby Trans Mountain will support employment of additonal feld staf for various operatons and Reply Evidence 6.2 During Operatons Scoping Trans Mountain has developed a Post-Expansion Workforce Plan and will contnue to advance that maintenance support roles ranging from engineering to administratve. Trans Mountain antcipates Stakeholder plan towards the objects of this commitment. that an incremental 40 to 45 operatons and maintenance personnel will be required at feld Engagement - p13 - locatons in BC. The additonal feld operatons and maintenance staf will be recruited sufciently in line 39 advance of the start-up of the expanded TMPL system to allow for appropriate training to take place, including in emergency response. 2567 Operatons NEB Trans Mountain will ensure each berth will be provided with a spill containment boom sized to Applicaton Volume During Operatons Scoping encircle an Aframax class vessel. Trans Mountain will ensure loading of a vessel will not start before 4A s. 3.4.4.2.1 p4A- the deployment of the boom. The boom will remain in place untl the loading arms have been 89 retracted and secured. 2590 Operatons NEB Trans Mountain will ensure all remote pump statons and ancillary facilites (those pump statons Applicaton Volume During Operatons Scoping and ancillary facilites not located at maintenance bases) in the expanded TMPL system will be 4C s. 6.3 p4C-15 visited by operatons personnel on a regular basis, with the frequency determined by subjectve and quanttatve risk assessments and from operatng experience, as is the case for the existng TMPL system. 2591 Operatons NEB Similar to the existng Trans Mountain system, Trans Mountain will commit to staf 24 hours per day, Applicaton Volume During Operatons Scoping The Post-Expansion Workforce Plan provides that the Burnaby Terminal will have operatons staf on seven days per week and the operatons personnel will conduct daily surveillances for the expanded 4C s. 6.3 p4C-16 a 24/7 basis. terminals, with the excepton of Sumas Terminal. 2594 Operatons NEB Trans Mountain will use a high-resoluton USCD tool to be run in each of the new Line 2 pipeline Applicaton Volume During Operatons Superseded by NEB 143 The subject commitment has been overtaken by Conditon 143, which requires at (a)(ii) that in-line segments within the frst fve years of operaton. 4C s. 8.1.4 p4C-27 Conditon ultrasonic crack detecton inspectons take place within two years afer commencing operatons. 2595 Operatons NEB Within one year of the new Line 2 pipeline segments entering service, Trans Mountain will complete Applicaton Volume During Operatons Superseded by NEB 143 The subject commitment has been overtaken by Conditon 143, which specifes baseline ILI a baseline in-line inspecton (ILI) survey of pipeline geometry and metal loss will be undertaken with 4C s. 8.1.4 p4C-27 Conditon requirements including in relaton to pipeline geometry and metal loss. a high-resoluton tool. 2596 Operatons NEB The planned in-line inspecton (ILI) program for the reactvaton of the existng inactve pipeline Applicaton Volume During Operatons Superseded by Commitment addressed through Trans Mountain’s Pipeline Integrity Management Program. The segments that will form parts of Line 1 is described in Volume 4A, Secton 3.6. In additon, Trans 4C s. 8.1.4 p4C-27 Legal/Regulatory management of the reactvated lines will be rolled into the existng program that includes running Mountain will ensure a high-resoluton USCD tool will be run in each of the reactvated pipeline Requirement ILI tools on a maximum 5-year interval that monitor for all of the hazards listed. In additon, Trans segments within the frst two years of operaton. Mountain commits to completng either a high-resoluton USCD crack detecton tool, or an EMAT crack detecton tool, in each of the reactvated pipeline segments within the frst two years of operaton. 2864 Operatons City of Coquitlam Trans Mountain will ensure regular aerial patrols are conducted as part of a pipeline protecton City Coquitlam IR During Operatons Superseded by Trans Mountain will contnue to conduct periodic aerial patrols per the requirements of Clause program to prevent third party damage to the pipeline from unauthorized ground disturbance No. 1.C.3 Legal/Regulatory 10.6.1 of the CSA Z662 standard, including with atenton to any unauthorized actvites in proximity actvites. Requirement to the pipeline. 2866 Operatons City of Coquitlam Trans Mountain will complete maintenance digs and repairs based on In-line Inspecton (ILI) tool City Coquitlam IR During Operatons Superseded by Commitment addressed through Trans Mountain’s Pipeline Integrity Management Program. The analysis results to repair anomalies before they become a threat to failure. No. 1.C.3 Legal/Regulatory management of Line 2 and the reactvated segments will be rolled into the existng program that Requirement includes a dig program to investgate and repair defects identfed from in-line inspecton tool runs. 2867 Operatons City of Coquitlam Trans Mountain will complete regular cathodic protecton (CP) test lead surveys and close spaced City Coquitlam IR During Operatons Superseded by Trans Mountain will contnue to maintain and appropriately monitor its corrosion control system per surveys to ensure the efectve operaton of the CP system for corrosion preventon. No. 1.C.3 Legal/Regulatory the provisions of Clause 9 of the CSA Z662 standard. Requirement 2868 Operatons City of Coquitlam Trans Mountain will complete regular cleaning pig runs to mobilize any sediments and water that City Coquitlam IR During Operatons Superseded by This commitment represents standard operatng practce. might accumulate in the lines to prevent internal corrosion. No. 1.C.3 Legal/Regulatory Requirement

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2896 Operatons City of Vancouver Trans Mountain will monitor the conditon of the right-of-way in a tmely manner afer any heavy City Vancouver IR During Operatons Superseded by Commitment addressed through Trans Mountain’s Pipeline Integrity Management Program. The rainfall events to look for erosion or washout areas and remediate any damage to protect the No. 1.06.02a Legal/Regulatory management of Line 2 and the reactvated segments will be rolled into the existng program that integrity of the pipeline. Requirement includes a process for monitoring the right-of-way afer heavy rainfall events to identfy/repair any areas that threaten the integrity of the pipeline. 2906 Operatons NEB Trans Mountain will make sure requirements for fyover frequency would be assessed once the new Applicaton Volume During Operatons Superseded by Aerial patrol frequency will be re-assessed per Clause 10.6.1 of the CSA Z662-19 standard (as pipeline becomes operatonal and will be in accordance with regulatory requirements. 5A. Technical Update Legal/Regulatory incorporated in the Onshore Pipeline Regulatons). No. 1 and Requirement Consultaton Update No. 2 - Part 2 Table 1.6.2-1 3010 Operatons NEB Once in operaton, Trans Mountain will ensure that at no tme will the pipeline be cleaned with NEB IR No. 3.010a- During Operatons Complete This commitment stemmed from an informaton request by an Indigenous group dealing with water. Atachment 1 potental water usages. In response to the prospect of water being used to clean the pipe, TMPL factually and pre-emptvely stated that "Once in operaton, at no tme will the pipeline be cleaned with water." 3506 Operatons City of Abbotsford Following blastng and constructon, a hydrostatc test will be completed to confrm the integrity of City of Abbotsford IR During Operatons Superseded by Commitment addressed through Trans Mountain’s Pipeline Integrity Management Program. The the pipeline and a comprehensive integrity program will be implemented to confrm the long-term No. 1.20b Legal/Regulatory program addresses the monitoring requirements of blastng actvites around the pipeline to ensure integrity of the pipeline. Requirement that pipeline integrity is not compromised. 3508 Operatons Living Oceans Society Trans Mountain will implement additonal controls to prevent the discharge of hydrocarbons into Living Oceans IR No. During Operatons Complete storm water including, as applicable to the Burnaby Terminal: observaton by operatons personnel 1.28a before and during storm water draining from secondary containment areas. 3509 Operatons Living Oceans Society Trans Mountain will implement additonal controls to prevent the discharge of hydrocarbons into Living Oceans IR No. During Operatons Complete storm water including, as applicable to the Westridge Marine Terminal: observaton by operatons 1.28a personnel before and during storm water draining from secondary containment areas. 3510 Operatons NEB Trans Mountain will focus eforts during the executon of operatons and maintenance programs and NEB IR No. 4 29c During Operatons Superseded by NEB 22 This commitment has been overtaken by Conditon 22, as applying to the Burnaby Terminal. procedures, to prevent the alignment of conditons that could lead to a secondary containment pool Conditon fre event and the potental consequental efects at the Burnaby Terminal. 3511 Operatons NEB Trans Mountain will focus eforts during the executon of operatons and maintenance programs and NEB IR No. 4 29c During Operatons Superseded by NEB 22 This commitment has been overtaken by Conditon 22, as applying to the Sumas Terminal. procedures, to prevent the alignment of conditons that could lead to a secondary containment pool Conditon fre event and the potental consequental efects at the Sumas Terminal. 3512 Operatons NEB Trans Mountain will focus eforts during the executon of operatons and maintenance programs and NEB IR No. 4 29c During Operatons Superseded by NEB 22 This commitment has been overtaken by Conditon 22, as applying to the Edmonton Terminal. procedures, to prevent the alignment of conditons that could lead to a secondary containment pool Conditon fre event and the potental consequental efects at the Edmonton Terminal. 3513 Operatons Living Oceans Society Trans Mountain will implement additonal controls to prevent the discharge of hydrocarbons into Living Oceans IR No. During Operatons Complete storm water including, as applicable to the Edmonton Terminal: observaton by operatons personnel 1.28a before and during storm water draining from secondary containment areas. 3516 Operatons City of Burnaby As is the current practce, testng at the Burnaby Terminal will be done during weekday daytme City Burnaby IR No. During Operatons Complete periods. 1.25.03d 3517 Operatons City of Burnaby As is the current practce, testng at the Westridge Marine Terminal will be done during weekday City Burnaby IR No. During Operatons Scoping daytme periods and the testng will have no impact on residental power or water systems. 1.25.03d 3525 Operatons NEB The Burnaby Terminal will contnue to have operatons staf on site at all tmes. Applicaton Volume During Operatons In Progress The Post-Expansion Workforce Plan provides that the Burnaby Terminal will have operatons staf on 2, 2-22. a 24/7 basis. 3526 Operatons NEB The Edmonton Terminal will contnue to have operatons staf on site at all tmes. Applicaton Volume During Operatons In Progress he Post-Expansion Workforce Plan provides that the Edmonton Terminal will have operatons staf 2, 2-22. on a 24/7 basis. 3648 Operatons City of Surrey Trans Mountain will maintain any new culverts installed in the City of Surrey. Non-Regulatory During Constructon Scoping Commitment 3651 Operatons Katzie First Naton Trans Mountain is commited to operatng the new pipeline (Line 2) in a manner that prevents TMEP / CoE During Operatons Superseded by NEB 135 This commitment has been overtaken by Conditon 135 and associated fling requirements. column separaton. Technical Working Conditon Commitee Mtg #5 Meetng Minutes, 11/18/2015, Staketracker 3654 Operatons City of Edmonton Trans Mountain will provide inspecton and carry the inspecton cost for a Trans Mountain inspector Non-Regulatory Prior to Operatons Scoping to monitor pipeline safety during constructon of the Whitemud Drive expansion. Commitment 3836 Operatons Simon Fraser University Trans Mountain is commited to meetng the requirements of its Environment, Health and Safety SFU IR No. 2.5.12.3 During Operatons Complete Policy that is accomplished through the Odour Complaint Investgaton and Response Program and various emission reducton measures. 3837 Operatons Simon Fraser University Trans Mountain is commited to meetng the requirements of its Environment, Health and Safety SFU IR No. 2.5.12.3 During Operatons Complete Policy that is accomplished through the Odour Complaint Investgaton and Response Program and various emission reducton measures.

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3838 Operatons Simon Fraser University Trans Mountain is commited to meetng the requirements of its Environment, Health and Safety SFU IR No. 2.5.12.3 During Operatons Complete Policy that is accomplished through the Odour Complaint Investgaton and Response Program and various emission reducton measures. 3846 Operatons NEB Similar to the existng TMPL system, Trans Mountain will commit to staf 24 hours per day, seven Applicaton Volume During Operatons Scoping The Post-Expansion Workforce Plan provides that the Edmonton, Burnaby, and Westridge Terminals days per week and the operatons personnel will conduct daily surveillances for the expanded 4C s. 6.3 p4C-16 will have operatons staf on a 24/7 basis. terminals, with the excepton of Sumas Terminal. 3847 Operatons NEB Similar to the existng Trans Mountain system, Trans Mountain will commit to staf 24 hours per day, Applicaton Volume During Operatons Scoping The Post-Expansion Workforce Plan provides that the Edmonton, Burnaby, and Westridge Terminals seven days per week and the operatons personnel will conduct daily surveillances for the expanded 4C s. 6.3 p4C-16 will have operatons staf on a 24/7 basis. terminals, with the excepton of Sumas Terminal. 3848 Operatons NEB The planned in-line inspecton (ILI) program for the reactvaton of the existng inactve pipeline Applicaton Volume During Operatons Superseded by Commitment addressed through Trans Mountain’s Pipeline Integrity Management Program. The segments that will form parts of Line 1 is described in Volume 4A, Secton 3.6. In additon, Trans 4C s. 8.1.4 p4C-27 Legal/Regulatory management of the reactvated lines will be rolled into the existng program that includes running Mountain will ensure a high-resoluton USCD tool will be run in each of the reactvated pipeline Requirement ILI tools on a maximum 5-year interval that monitor for all of the hazards listed. In additon, Trans segments within the frst two years of operaton. Mountain commits to completng either a high-resoluton USCD crack detecton tool, or an EMAT crack detecton tool, in each of the reactvated pipeline segments within the frst two years of operaton. 4022 Operatons NEB Trans Mountain will complete the following actvites: ultrasonic crack detecton (USCD) or EMAT NEB IR No. 4.43c During Operatons Superseded by Commitment addressed through Trans Mountain’s Pipeline Integrity Management Program. The inspecton within 2 years of reactvaton; ongoing crack management programs with includes Legal/Regulatory management of the reactvaton segments will be rolled into the existng program that includes pressure cycle monitoring programs; fatgue growth assessments to validate in-line inspecton Requirement running ILI tools on a maximum 5-year interval that monitor for stress corrosion cracking (SCC), long intervals; in-line inspectons to look for stress corrosion cracking (SCC), Long Seam, pipe body, and seam cracking, and pipe body cracking. The Integrity Management Program also includes pressure co-commitment tracking (i.e. metal loss with cracking, dents with cracking). cycling monitoring and fatgue growth assessments on a regular basis. Trans Mountain also commits to completng an ultrasonic crack detecton (USCD) to EMAT tool inspecton within 2 years of reactvaton. 4498 Operatons NEB Trans Mountain commits to discontnue transportng liquids on the existng Westridge Delivery Line NEB IR No. 6.1(a) During Constructon Scoping upon commencement of service of the relocated delivery line, if the Project is approved. 4507 Operatons Landowner - 1054408 BC Trans Mountain commits to submitng a separate regulatory applicaton for its proposed Submission in Prior to Constructon Complete The subject applicaton was fled with the CER on January 23, 2020 and approved on June 26, 2020 Ltd. replacement for the existng Trans Mountain Pipeline (“TMPL”) at the Coquihalla River, including any Relaton to the through Orders XO-006-2020 and MO-023-2020 (reference Filing IDs C04276 and C07010. requirements for the on-land pipe installaton of the TMPL replacement. Review Process for 1054408 BC Ltd, para 11. (C04263) 176 Permitng Metro Vancouver Trans Mountain will work directly with afected municipal, regional and provincial authorites to Metro Vancouver F- Project Lifecycle No Longer Trans Mountain considers this to be a statement of intent rather than a commitment. New ensure informaton and agreements required for specifc development authorizatons and any IR No. 1.1.5.09a.i Applicable commitment 4558 beter artculates the requirements of commitment. Commitment no longer specifcally identfed planning, monitoring or mitgaton requirements are in place. (Spread 1) applicable. 182 Permitng Regional District of Fraser- Trans Mountain will contnue to consult with BC Ministry of Transportaton and Infrastructure to RD of Fraser-Fort Prior to Operatons In Progress Fort George ensure that the proposed pipeline does not interfere with the future expansion of Highway 5. George IR No. 1.12c 616 Permitng City of Burnaby Trans Mountain Operatons commits to applying for amendments to Westridge waste discharge City Burnaby IR No. Prior to Constructon Complete TMEP is not dismantling the water sampling locaton and Commitment is no longer applicable. permit a minimum of 6 months prior to modifcatons to the sampling point(s) or drainage area(s) at 2.073b the facility as it relates to constructon. 1738 Permitng NEB Trans Mountain will directly notfy afected tenure holders so they can select alternate areas for Applicaton Volume Prior to Constructon Superseded by Commitment addressed in Secton 314 of the CER Act. their actvites. Compensaton, considering various forms, will be provided to afected trappers 5B, 7-108. Legal/Regulatory according to established industry and provincial protocols if reduced fur harvest and lost revenue is Requirement proven. (Spread 2) 4558 Permitng City of Burnaby, City of Trans Mountain said it would apply for, or seek variance from, all permits and authorizatons that are NEB Reconsideraton Project Lifecycle In Progress Permit and Lands Management system tracks the permit requirements and permits received. Edmonton, City of New required by law, and would contnue to work with all municipalites to understand the applicability Report, Secton Westminster of bylaws and standards related to the constructon and operaton of the Project. 11.2.9, pg. 297 25 Pipeline Constructon City of Abbotsford Trans Mountain will commit to winter constructon at Ledgeview Golf Course. City of Abbotsford IR Prior to Constructon In Progress No. 1.25c 42 Pipeline Constructon Regional District of Fraser- The determinaton (if a camp will be built in Valemount) should be made by Q1 of 2015. Trans RD of Fraser-Fort Prior to Constructon Superseded by NEB 59, 61 Trans Mountain has confrmed in flings made under Conditons 59 and 61 that a worker camp Fort George Mountain commits that pipeline workers will usually be scheduled for six work shifs (Monday George IR No.1.03b Conditon would be established outside the Village of Valemount. Reference for example the submission made through Saturday) and one day of (Sunday) per week. If workers are housed in Valemount, they will under Conditon 59 on February 11, 2019 confrming that Locaton VAL028 had been selected (Filing be permited to return home for their day of at their discreton. ID C04645). Workers typically work a six-on/one-of schedule with the discreton to leave camp site during days of. 43 Pipeline Constructon Regional District of Fraser- Trans Mountain can confrm that all roads directly impacted by Project constructon will be restored RD of Fraser-Fort During Constructon Scoping Fort George to their original state once constructon has been completed. George IR No. 1.12h 44 Pipeline Constructon Regional District of Fraser- Trans Mountain will meet the aesthetc standards for constructon set by the Village of Valemount RD of Fraser-Fort During Constructon In Progress Fort George and the Regional District where doing so will not compromise the Project’s operatonal requirements George IR No. 1.12k or confict with other laws or regulatons governing the Project. 55 Pipeline Constructon NEB Trans Mountain will have certfed inspectors to monitor welding and non-destructve testng (NDT) Applicaton Volume During Constructon Superseded by NEB 111 Embedded in Joining Program submissions made under Conditon 111 (e.g. C00700-2, Field Joining actvites to ensure compliance to project specifcatons and procedures. Periodic audits will be 4B-20. Conditon Program for Pipeline Constructon, Sectons 5.0, 8.0, 10.0, 11.0, and 12.4; C04492, Part 5 of 6, performed by third‑party welding and NDT specialists employed by Trans Mountain. Facility Joining Program Quality Assurance Plan startng at PDF Page 190).

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59 Pipeline Constructon NEB Trans Mountain will retain contractors that employ only Canadian General Standards Board certfed Applicaton Volume During Constructon Superseded by NEB 111 Embedded in Joining Program submissions made under Conditon 111 (e.g. C00700-2, Field Joining radiographers and ultrasonic technicians to operate the non-destructve testng (NDT) inspecton 4B-20. Conditon Program for Pipeline Constructon, Secton 12.4 at PDF Pages 13-14). equipment, and provide the fnal interpretaton of radiographic flm and the results of the ultrasonic inspecton. 60 Pipeline Constructon NEB Trans Mountain will use well maintained equipment to reduce air polluton and unnecessary noise Technical Update During Constructon Superseded by NEB 72 Provisions set out in the Environmental Protecton Plan fled under Conditon 72 (Filing ID C01961, and restrict the duraton that vehicles and equipment are allowed to sit and idle to less than one No. 1 and Conditon PDF Pages 40 and 254). Stpulaton also to abide by municipal non-idling bylaws where applicable). hour unless air temperatures are less than 0°C. Consultaton Update No. 2 - Part 2 Table 1.6.3-1 page 100 62 Pipeline Constructon NEB Trans Mountain will work with the Merrit airport owner to coordinate constructon actvity around Applicaton Volume During Constructon In Progress periods of airport use. 5B, 7-134. 72 Pipeline Constructon NEB Trans Mountain will burn slash when conditons exist that allow for adequate dispersion of smoke Applicaton Volume During Constructon Superseded by NEB 72 Slash burning protocols are set out in the Environmental Protecton Plan fled under Conditon 72 and will observe the appropriate setback distances and other best management practces (Spread 5A, 7-88. Conditon (Filing ID C01961). Refer to the associated planning and mitgaton measures on PDF Pages 24, .40, 5B). and 50-53. 88 Pipeline Constructon Mike Wiegele Helicopter Trans Mountain will avoid constructon during Resort's winter operatng season. Non-Regulatory During Constructon In Progress Skiing Commitment 94 Pipeline Constructon Upper Nicola Band Trans Mountain commits Upper Nicola Band to having drilling fuid pressures and drilling rates Upper Nicola Band During Constructon Complete An early version of the TMEP Horizontal Directonal Drilling Specifcaton was provided in monitored at all tmes during constructon for an early indicaton of circulaton loss. IR No. 2(c).02.s conjuncton with Technical Update #3 in September 2014 (Filing ID A62628, B260-37). This specifcaton has since been updated, including with an explicit requirement that the HDD contractor provide and maintain electronic data recorder instrumentaton (Specifcaton TMEP- MP3123, Rev 2, Artcle 5.1.13). The data being recorded includes drilling fuid pressures and drilling rates. 102 Pipeline Constructon NEB Trans Mountain will employ an “early in/early out” approach by initatng constructon actvites as Applicaton Volume During Constructon Superseded by NEB 72 early as possible in the winter and working expeditously to limit late winter actvites. Additonally, 5A; Technical Conditon Trans Mountain will discuss the tming of their actvity with Alberta Energy Regulator (AER) and Update No. 1 and maintain contact with AER during the constructon period to advise them of the constructon Consultaton Update progress and antcipated completon date within Key Wildlife Biodiversity Zones. Constructon, No. 2 - Part 2 Table routne maintenance and operaton actvites will be scheduled outside the spring period for 1.6.2-1 caribou. 122 Pipeline Constructon NEB Trans Mountain will employ an “early in/early out” approach by initatng constructon actvites as Applicaton Volume During Constructon Superseded by NEB 72 early as possible in the winter and working expeditously to limit late winter actvites. Additonally, 5A; Technical Conditon Trans Mountain will discuss the tming of their actvity with Alberta Energy Regulator (AER) and Update No. 1 and maintain contact with AER during the constructon period to advise them of the constructon Consultaton Update progress and antcipated completon date within Key Wildlife Biodiversity Zones. Constructon, No. 2 - Part 2 Table routne maintenance and operaton actvites will be scheduled outside the spring period for 1.6.2-1 caribou. 141 Pipeline Constructon City of Burnaby Trans Mountain is commited to working with the City of Burnaby to facilitate the restoraton of City Burnaby IR No. During Operatons In Progress lands to a similar conditon that existed prior to constructon. Trans Mountain is commited to 1.33.06c reasonably facilitatng the restoraton of lands in order to provide any amenites, landscaping and character loss through constructon actvites where doing so will not compromise operatonal requirements or confict with other laws or regulatons governing the Project and ongoing operatons. Trans Mounain is willing to meet with the City of Burnaby to discuss planned and proposed municipal projects or upgrades to infrastructure to consider in the design of the expansion Project. 146 Pipeline Constructon City of Burnaby Trans Mountain commits to sharing informaton on City of Burnaby utlites located during existng City Burnaby IR No. Prior to Constructon In Progress utlity survey. 1.33.35h 164 Pipeline Constructon Natural Resources Canada A pre-constructon tmber cruise will be completed to determine the economically operable and GoC NRCan IR No. Prior to Constructon Superseded by NEB 72 Timber salvage operatons are being conducted in accordance with the Timber Salvage Plan fled merchantable tmber volume for the constructon right-of-way, and during the tmber cruise, areas 1.09.1 Conditon and accepted under Conditon 72 (reference Filing IDs A90966-12, A91896, and A99378). Trans along the constructon right-of-way with forest health concerns or actvity will be identfed and Mountain is following appropriate provincial protocols for the advance estmaton of merchantable mapped, for Spread 1. tmber and the securing of cutng authorizatons. 226 Pipeline Constructon NEB Trans Mountain will locate and fag all existng buried utlity lines and cables to be crossed by the Applicaton Volume Prior to Constructon Superseded by NEB 64 Protocols for Damage Preventon Planning set out in Secton 22 and Appendix D of the Health and pipeline prior to the commencement of ground disturbance actvites by using "one call" services in 5B, 3-8. Conditon Safety Management Plan fled under Conditon 64 on on May 16, 2017 (Filing ID A83607, A83602 at additon to direct contact with utlity owners. PDF Pages 42 and 139-205). 276 Pipeline Constructon BC Parks, NEB A tmber cruise will be conducted prior to constructon. BC Parks boundary Prior to Constructon Superseded by NEB 72 Timber salvage operatons are being conducted in accordance with the Timber Salvage Plan fled adjustment Conditon and accepted under Conditon 72 (reference Filing IDs A90966-12, A91896, and A99378). Trans applicaton (August Mountain is following appropriate provincial protocols for the advance estmaton of merchantable 2014) tmber and the securing of cutng authorizatons. 312 Pipeline Constructon Fraser Valley Regional Trans Mountain commits to complying with Metro Vancouver’s Non-Road Diesel Engine Emission Fraser Valley During Constructon Scoping District Regulaton while operatng in the Fraser Valley Regional District. Regional District Atachment - Table 1.04(c)

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455 Pipeline Constructon NEB Trans Mountain will burn slash when conditons exist that allow for adequate dispersion of smoke Applicaton Volume During Constructon Superseded by NEB 72 These aspects are addressed in the in the Environmental Protecton Plan fled under Conditon 72 and will observe the appropriate setback distances and other best management practces. In the 5A, 7-88. Conditon (Filing ID C01961). Refer to the associated planning and mitgaton measures on PDF Pages 24, .40, Lower Fraser Valley (Spread 6) where air quality is an issue, Trans Mountain will avoid burning slash. and 50-53. As the EPP indicates, slash is not to be burned in the Lower Fraser and Greater Instead, mulching will be performed in place or slash will be shipped/hauled to an approved disposal Vancouver regions. locaton. 460 Pipeline Constructon City of Burnaby, Township of Where minor roads are crossed that may afect established community use/access routes, Trans City Burnaby IR No. During Constructon Scoping Langley Mountain will complete open-cut crossings within one day, to the extent practcal. 1.35.05b; Langley IR No. 1.14a 505 Pipeline Constructon BC Parks Open cut crossings are typically only utlized when a watercourse is dry or frozen to the botom at BC Parks boundary During Constructon In Progress the tme of constructon. Under these conditons, sediment release is not expected to occur, adjustment however, in the event the recommended isolated crossing technique is not feasible at Finn Creek, an applicaton (August open cut or partal isolaton technique may be required. Trans Mountain will conduct monitoring 2014) Tab A - Finn under fowing conditons to document downstream turbidity and any exceedances of the relevant Creek Provincial Park guidelines will be reported to the appropriate regulatory authorites. 516 Pipeline Constructon NEB In the Lower Fraser Valley where air quality is an issue, Trans Mountain will avoid burning slash. Applicaton Volume During Constructon Superseded by NEB 72 These aspects are addressed in the in the Environmental Protecton Plan fled under Conditon 72 Instead, mulching will be performed in place or slash will be shipped/hauled to an approved disposal 5A, 7-88. Conditon (Filing ID C01961). Refer to the associated planning and mitgaton measures on PDF Pages 24, .40, locaton. and 50-53. As the EPP indicates, slash is not to be burned in the Lower Fraser and Greater Vancouver regions. 579 Pipeline Constructon City of Abbotsford If site conditons develop that require the release of sediment-laden waters to City storm sewers, City of Abbotsford IR During Constructon Scoping drains or storm sewers, Trans Mountain will contact and consult with the City of Abbotsford’s No. 2.2.08c General Manager of Planning and Development Services or designate. 621 Pipeline Constructon City of Burnaby Trans Mountain will provide plans which indicate all utlites for the selected pipe route once the City Burnaby IR No. Project Lifecycle Scoping protocol agreements with the municipalites are set and the utlity owners have been able to provide 2.090a more detailed utlity informaton. 634 Pipeline Constructon City of Burnaby Trans Mountain will communicate with TICorp during the detailed design phase to minimize the City Burnaby IR No. Prior to Constructon Complete disturbance to existng compensaton areas within the TMEP Proposed Project footprint. Any 2.135 disturbance to existng riparian vegetaton or compensaton areas will be re-established by Trans Mountain during the constructon and reclamaton phases of the Project. 643 Pipeline Constructon City of Coquitlam Transmountain commits to repaving the two westbound lanes of the United Blvd upon completon City of Coquitlam IR During Constructon Superseded by NEB 49 Proof of completon will be a photo or as-built. of TMEP constructon in the United Blvd area. No. 2.D.3 Conditon 714 Pipeline Constructon Township of Langley Trans Mountain inspectors will be monitoring constructon actvites to ensure that grading does not Langley IR No. 2.11.a During Constructon Superseded by NEB 72 Grading actvites are comprehensively addressed in Secton 10.0 of the Environmental Protecton create issues, including drainage. Conditon Plan fled under Conditon 72 (Filing ID C01961, PDF Pages 62-67). 897 Pipeline Constructon City of Burnaby Trans Mountain commits to working with the City of Burnaby to avoid any intrusive work from the NEB Route Hearing During Constructon Superseded by NEB 14, 49, 26 Burnaby Mountain Tunnel Opton Design, Constructon, and Operaton report under Conditon 26 surface during constructon and operaton of the Burnaby Mountain Tunnel secton of the pipeline. TranscriptSeg 7 Vol 3 Conditon (Filing ID A81936). This report illustrates that the clear intent is to generally avoid any intrusive work para 1784 from the surface during constructon and operaton. 900 Pipeline Constructon City of Burnaby Trans Mountain commits to seeking to avoid having to access the Burnaby Tunnel from the surface, NEB Route Hearing During Constructon Superseded by NEB 62 Burnaby Mountain Tunnel Opton Design, Constructon, and Operaton report under Conditon 26 though in the unlikely event that it was required, Trans Mountain would minimize the impact and TranscriptSeg 7 Vol 3 Conditon (Filing ID A81936). Secton 3.2 of the report makes clear that the two tunnel portals (namely the any impacts that were caused would be fully restored. para 1784 Westridge Terminal Tunnel Portal and the Burnaby Terminal Tunnel Portal) will be used for access. As such, there will no access from the surface. 1000 Pipeline Constructon Regional District of Fraser- During constructon of the pipeline, Trans Mountain commits to ensure access to the Valemount RD of Fraser-Fort During Constructon In Progress Fort George transfer staton for the haul truck (tractor) and 50-foot trailer during normal operatng hours. George IR No. 1.12f 1002 Pipeline Constructon Regional District of Fraser- As an essental service road, Trans Mountain can commit to ensuring no complete closure of the RD of Fraser-Fort During Constructon In Progress Fort George road to the transfer staton during normal transfer staton hours such that access is available to the George IR No. 1.12g, maximum possible extent. If open-cut crossing methods are employed on this road, Trans Mountain RD of Fraser-Fort will further commit to consultng with transfer staton operatons representatves to determine an George IR No. 1.12e optmum constructon schedule, including conductng Project actvites outside normal transfer staton hours. Access will be maintained for members of the public and local government staf. 1009 Pipeline Constructon Township of Langley Where possible, excavated material will be stored on the proposed constructon footprint (right-of- Langley IR No. 1.19a During Constructon Scoping way and temporary workspaces) during the constructon phase before backflling. Where there is no opportunity to store excavated material due to space constraints, additonal space will be secured from the respectve abutng and non-abutng landowners or from the Municipality to allow for the temporary storage of excavated material. Additonal storage space will be located as close to the respectve worksites as practcal. 1015 Pipeline Constructon NEB With respect to water use for camps and constructon ofces, Trans Mountain will enter into water Applicaton Volume During Constructon In Progress Trans Mountain has entered into a water use agreement with the Shxw'owhamel First Naton for the use agreements with the applicable jurisdictons as the Project develops. (Spread 5B) 5B, 7-139. Ohamil Camp. 1021 Pipeline Constructon Regional District of Fraser- At locatons considered sensitve to vibratons, Trans Mountain will employ specifc pipeline RD of Fraser-Fort During Constructon Scoping Fort George constructon techniques to minimize such vibratons. This may include modifed excavaton and George IR No. 1.06b backflling procedures, as well as monitoring of vibratons at the boundary of the constructon right- of-way to reasonably ensure that materials already in place are not disrupted.

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1092 Pipeline Constructon Environment Canada Trans Mountains plans to have a qualifed engineer and or hydrogeologist onsite during constructon GoC EC IR No. 2.120 During Constructon Superseded by NEB 87 Groundwater Seepage Management Plan for Burnaby Mountain Tunnel Constructon fled under to sample and analyze the water being extracted during the tunneling process. Conditon Conditon 87 on June 1, 2017 (Filing ID A84145). During tunnel constructon, the water fowing down the tunnel will be treated before release. Prior to and during tunneling, independent water sampling and testng will be carried out. 1165 Pipeline Constructon NEB To mitgate any potental scratches or damage to the pipe coatng due to contact with the dollies NEB Cond IR No. During Constructon In Progress Trans Mountain response to IR No. 53.1 (Filing ID C11890) for Conditon 26 provides proof of during pipe installaton, Trans Mountain commits to applying an extra layer of coatng to the pipe in 59.2 completon. areas where there will be contact with the clamps, ftng the dolly pipe clamps that will be in direct contact with the outside pipe coatng with a neoprene pad, and visually inspectng the pipe at the dolly clamps for potental damage to the coatng. 1215 Pipeline Constructon NEB Trans Mountain commits to following the air quality testng and mitgaton procedures as described NEB Cond IR No. During Constructon Superseded by NEB 26 The full McNally Project-Specifc Safety Plan for Burnaby Mountain Tunnel was fled on March 9, in the McNally Health & Safety Plan, during tunnel boring. 61.3 a) Conditon 2020 in connecton with Conditon 26(a)(ii) regarding confned space entry procedures (Filing ID C05112). More specifcally, the aspect of confned space entry is covered in Secton 4.5 fo that plan, including with due regard to air quality testng and mitgaton procedures. The subject of confned space entry procedures is addressed (Filing ID 05112). The CER granted Conditon 26(a)(ii) approval through Leter Report No. 71 dated March 10, 2021 (Filing ID C11895). 1315 Pipeline Constructon Township of Langley Trans Mountain is prepared to reimburse Tonwship of Langley for reasonable costs and staf tme Langley IR No. 2.13.e During Constructon Scoping required to monitor and assist Trans Mountain workers in constructng the Project on municipal lands and in locatons where municipal services are located (either parallel to or crossed by Project). 1446 Pipeline Constructon City of Burnaby, NEB Trans Mountain takes responsibility for returning any lands disrupted during constructon to the Applicaton Volume During Operatons Superseded by NEB 72 The principles expressed in this commitment underpin the reclamaton provisions contained in the same, or beter conditon than existed before constructon (within the confnes of safe right-of-way 3A, 3A-151;NEB Conditon Environmental Protecton Plan fled and accepted under Conditon 72 (Filing ID C01961). Reference management.) Trans Mountain will work with each landowner on this and could involve such things Route Hearing TMEP Secton 13.0 "Clean-Up and Reclamaton" and Appendix H "Consolidaton of Reclamaton Measures" as replantng appropriate vegetaton, landscaping and monitoring for weed invasion. However, Trans Evidence Seg 7 (PDF Pages 76-86 and 432-514). Mountain does not take responsibility for private landscaping needs unrelated to constructon. Burnaby 1533 Pipeline Constructon Natural Resources Canada A pre-constructon tmber cruise will be completed to determine the economically operable and GoC NRCan IR No. Prior to Constructon Superseded by NEB 72 Timber salvage operatons are being conducted in accordance with the Timber Salvage Plan fled merchantable tmber volume for the constructon right-of-way, and during the tmber cruise, areas 1.09.1 Conditon and accepted under Conditon 72 (reference Filing IDs A90966-12, A91896, and A99378). Trans along the constructon right-of-way with forest health concerns or actvity will be identfed and Mountain is following appropriate provincial protocols for the advance estmaton of merchantable mapped, for Spread 7. tmber and the securing of cutng authorizatons. 1576 Pipeline Constructon Cedar Springs Strata Trans Mountain will seed portons of the constructon right-of-way that form part of the permanent Cedar Springs Strata During Constructon Superseded by NEB 72 Topics addressed in Pipeline Environmental Protecton Plan, Conditon 72 (CER Filing ID C01961), Corporaton easement of the pipeline with a natve seed and maintained in an early seral vegetatve state untl Corporaton Conditon Secton 13.0, Appendix H, Page: 72 to 73, H-1 to H-80. Conditon 72, CER Filing ID A86570, Conditon the pipeline is abandoned. Preliminary (P) IR 72 Reclamaton Management Plan, Appendix A to Appendix I. No. 1.03c 1671 Pipeline Constructon NEB With respect to water use for camps and constructon ofces, Trans Mountain will enter into water Applicaton Volume Prior to Constructon In Progress Trans Mountain has entered into a water use agreement with the Town of Merrit for the Merrit use agreements with the applicable jurisdictons as the Project develops. (Spread 5A) 5B, 7-139. Camp. 1672 Pipeline Constructon NEB With respect to water use for camps and constructon ofces, Trans Mountain will enter into water Applicaton Volume During Constructon In Progress Trans Mountain has entered into a water use agreement with the Town of Valemount for the use agreements with the applicable jurisdictons as the Project develops. (Spread 3) 5B, 7-139. Valemount Camp. The Blue River Camp will straddle Spreads 3 and 4A and has not yet been built. 1673 Pipeline Constructon NEB With respect to water use for camps and constructon ofces, Trans Mountain will enter into water Applicaton Volume During Constructon In Progress Trans Mountain has entered into a water use agreement with the City of Clearwater for the use agreements with the applicable jurisdictons as the Project develops. (Spread 4A) 5B, 7-139. Clearwater Camp. The Blue River Camp will straddle Spreads 3 and 4A and has not yet been built. 1698 Pipeline Constructon NEB, Waterwealth Project Trans Mountain commits to using bio-degradable hydraulic fuid on the heavy equipment used Route Variance During Constructon Superseded by NEB 72 Provision incorporated in the Environmental Protecton Plan fled under Conditon 72 (Filing ID during pipeline installaton in the Vedder Fan Aquifer area (KP 1091.6 to KP 1105.6). Chilliwack BC Hydro Conditon C01961 at PDF Page 44). Applicaton pg10, Route Variance Chilliwack BC Hydro NEB IR 1.4; Route Variance Chilliwack B Waterwealth IR 1.2 1719 Pipeline Constructon NEB Trans Mountain commits to utlizing measures outlined in the response to NEB Conditon IR 71.2 NEB Cond IR No. During Constructon In Progress including the use of neoprene layering, isolaton kits, non-conductve coatngs, insulaton, and 71.2 maintaining adequate separaton from metalling unprotected structures, to ensure that cathodic protecton does not extend to structures other than the delivery pipelines. 1726 Pipeline Constructon NEB Trans Mountain commits to minimizing equipment and personnel and using smaller excavaton Route Variance During Constructon Scoping equipment, in reduced workspace areas within the Chilliwack BC Hydro Route Realignment. ChilliwackBC Hydro NEB IR 3.1b 2369 Pipeline Constructon City of Coquitlam To mitgate the issue of overlap in constructon schedules between the end of Port Mann Main No. 2 Reply Evidence 13.7 Prior to Constructon Complete work and the start of constructon of the proposed Fraser River horizontal directonal drilling (HDD) Port Mann Main No. for the Project, Trans Mountain will change the sequence of large HDD crossings to delay the Fraser 2/Colony Farm River crossing such that the work on the north shore of the Fraser River in preparaton for the HDD Regional Park, would not begin untl 2017. If the Metro Vancouver project is delayed, then the two constructon Coquitlam - p3 - line contractors will manage the interface issues during the constructon period. 7

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2379 Pipeline Constructon NEB Trans Mountain will obtain real tme fow measurements immediately prior to commencing any mid- Reply Evidence 14.1 During Constructon Superseded by NEB 72 his aspect is covered in the Environmental Protecton Plan fled under Conditon 72 (Filing ID C01961 sized and large open-cut crossing using the isolaton methodology. If fow volumes are within the Selecton of Primary Conditon at PDF Pages 95-96, 125, and 414-416). Refer in partcular to Note 12 at the base of PDF Page 96 and threshold limits for the respectve isolaton methodology and the weather forecast (typically a 2 to 5 Watercourses the Excessive Flow Contngency Plan set out in Secton 4.0 of Appendix B at PDF Page 125. day forecast) is favourable, the crossing will then be initated. If fow volumes exceed the threshold Crossing Method - limits for isolaton or the weather forecast is unfavourable, a decision will then be made to either p2 - line 25 wait for fows to subside and/or a favourable weather window (if an available biological window remains) or implement the contngency methodology process as required. 2536 Pipeline Constructon City of Burnaby, Township of Where minor roads are crossed that may afect established community use/access routes, Trans City Burnaby IR No. During Constructon Scoping Langley Mountain will complete open-cut crossings within one day, to the extent practcal. 1.35.05b; Langley IR No. 1.14a 2563 Pipeline Constructon NEB Trans Mountain will commit to clear snow, trees, stumps, brush and other vegetaton from the Applicaton Volume During Constructon Superseded by NEB 72 Survey and clearing provisions (including for tmber disposal) set out in Secton 8.0 of the constructon right-of-way, temporary work sites and permanent facilites that are not located on 3A Public Conditon Environmental Protecton Plan fled under Conditon 72 (Filing ID C01961, PDF Pages 46-53). existng, previously cleared easements. Timber and brush disposal optons will be subject to Consultaton Table agreements with landowners and appropriate government authorites. 1.7.2 p3A-151 2593 Pipeline Constructon NEB In additon to the hydrostatc testng of the new Line 2 pipeline segments, Trans Mountain will Applicaton Volume Prior to Operatons In Progress ensure a post-constructon in-line inspecton (ILI) survey with a caliper tool is performed to identfy 4C s. 8.1.4 p4C-27 any constructon damage to the pipe that requires repair. The caliper tool will also provide baseline geometry data. 2604 Pipeline Constructon NEB Trans Mountain will conduct monitoring at all fowing open cut crossings to document downstream Applicaton Volume During Constructon Superseded by NEB 72 Topic addressed in Environmental Protecton Plan fled under Conditon 72. Provisions set out in the turbidity and any exceedances of the relevant guidelines will be reported to the appropriate 5A s. 7.2.3.6 p7-68 Conditon Environmental Protecton Plan fled under Conditon 72 (Filing ID C01961). Refer in partcular to the regulatory authorites. Water Quality Monitoring Management Plan comprising Secton 8.2 of Appendix G (at PDF Pages 412-419 with keynote provisions in Sectons 8.2.3 and 8.2.4). 2636 Pipeline Constructon NEB Trans Mountain will reduce the amount of land disturbed by using previously disturbed areas for Applicaton Volume During Constructon Superseded by NEB 61, 72 The aspect of land use requirements was addressed at length during the regulatory proceedings, stockpiles, staging areas and camps where possible. 5B Table 7.2.2-4 p7- Conditon with Conditon 61 requiring the fling of a comprehensive list of temporary infrastructure sites. 27; Applicaton Associated permitng protocols set out in the Environmental Protecton Plan fled under Conditon Volume 5B Table 72. 7.2.2-4 p7-28, Applicaton Volume 5B s. 7.2.3.6 p7-53 2638 Pipeline Constructon NEB Trans Mountain will enable livestock access to, and use of, improved pasture and hay land areas Applicaton Volume During Constructon Superseded by NEB 72 The Environmental Protecton Plan fled under Conditon contains several provisions regarding the outside of the Footprint that may be isolated by constructon actvites. 5B Table 7.2.4-2 p7- Conditon accommodaton of livestock (Filing ID C01961). In partcular, refer to the Agricultural Management 72 Plan comprising Secton 2.2 of Appendix G and (at PDF Pages 289-298, with the most pointed commentary regarding access to water and grazing areas appearing at the botom of PDF Page 296). 2643 Pipeline Constructon NEB Trans Mountain will ensure all roads cut open will be fully reinstated to the satsfacton of the road Applicaton Volume During Constructon Scoping owner. 5B Table 7.2.5-2 p7- 122 2644 Pipeline Constructon NEB Trans Mountain will ensure that roads that deteriorate during Project constructon as a result of Applicaton Volume During Constructon Scoping Project trafc will be maintained by the contractor subject to approval of the road owner, on the 5B Table 7.2.5-2 p7- basis of a pre and post-constructon conditon assessment. 122 2650 Pipeline Constructon NEB Trans Mountain commits to treatng sewage and grey water in a temporary treatment facility, Applicaton Volume During Constructon Superseded by NEB 72 his falls under the waste management provisions contained in the Environmental Protecton Plan including any related to constructon camps, onsite at each facility and hauled to regional facilites 5B Table 7.2.5-2 p7- Conditon fled under Conditon 72, with related protocols applying (Filing ID C01961, PDF Pages 310-314. for disposal. 124 2652 Pipeline Constructon NEB During grading and excavaton at site TMEP-019, located at RK 669.5 and approximately 0.05 km Applicaton Volume During Constructon Superseded by NEB 72 Metal-leaching and Acid Rock Drainage Management Plan (complete with a mitgaton decision south of the proposed pipeline corridor, Trans Mountain will follow recommendatons to avoid using 5C s. 5.2 p21 Conditon framework) set out in Secton 4.1 of the Environmental Protecton Plan fled under Conditon 72 the potentally acid generatng (PAG) rock in fll areas and use a cover of compacted tll or clayey (Filing ID C01961, PDF Pages 330-336). material in cut areas where PAG material is exposed. It will be also be important to optmize the amount of excavated PAG material used as backfll in trenches. This material should be sealed with a cap of compacted tll or clay. Any excess material that cannot be backflled should be stored high and dry at the site under a cover of compacted tll or clayey material. 2653 Pipeline Constructon NEB During grading and excavaton at site TMEP-026, located at RK 789, approximately 0.3 km west of Applicaton Volume During Constructon Superseded by NEB 72 Metal-leaching and Acid Rock Drainage Management Plan (complete with a mitgaton decision the proposed pipeline corridor, Trans Mountain will use a cover of compacted tll or clayey material 5C s. 5.3 p22 Conditon framework) set out in Secton 4.1 of the Environmental Protecton Plan fled under Conditon 72 in cut and fll areas. Trans Mountain will ensure trenches should be sealed with cap of compacted tll (Filing ID C01961, PDF Pages 330-336). or clayey material. On-site storage of potentally acid generatng (PAG) rock should be stored under a cover of compacted tll or clayey material 2913 Pipeline Constructon Dorothy Doherty In urban areas, Trans Mountain commits to covering the new pipeline using all trench excavaton Doherty D IR No. During Constructon Superseded by NEB 72 The topics of topsoil handing and backflling are addressed in Sectons 5.0 and 12.0 of the TMEP spoil materials except for rock material and other materials that would damage the physical 1.10.3d Conditon Pipeline Constructon Specifcatons (Filing ID 87951-3). Topics also covered in Sectons 10.0 and structure of the pipe or the pipe coatng. During right-of-way constructon, topsoil will be separated 12.0 of the Environmental Protecton Plan fled under Conditon 72 (Filing ID C01961). from the trench spoil as part of the topsoil stripping operaton. Topsoil will be placed back over the entre right-of-way as part of completon of the Project. 3507 Pipeline Constructon Living Oceans Society Trans Mountain commits to monitoring for methane during constructon actvites in the area of Living Oceans IR No. During Constructon Superseded by NEB 72 The TMEP Environmental Protecton Plan recognizes methane at current and former landfll sites as United Boulevard in Coquitlam (which was built over an old landfll site). 1.28a Conditon a potental contaminant of concern with associated requirements for landfll gas monitoring during constructon actvites (Filing ID C01961, PDF Pages 322-323). The EPP also specifes that engineering controls are to be used if thresholds are exceeded, such as for example ventlaton to minimize the potental for landfll gas accumulaton in the trenches.

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3552 Pipeline Constructon NEB Trans Mountain will burn slash when conditons exist that allow for adequate dispersion of smoke Applicaton Volume During Constructon Superseded by NEB 72 Slash burning protocols are set out in the Environmental Protecton Plan fled under Conditon 72 and will observe the appropriate setback distances and other best management practces. In the 5A, 7-88. Conditon (Filing ID C01961). Refer to the associated planning and mitgaton measures on PDF Pages 24, .40, Lower Fraser Valley where air quality is an issue, Trans Mountain will avoid burning slash. Instead, and 50-53. mulching will be performed in place or slash will be shipped/hauled to an approved disposal locaton. 3602 Pipeline Constructon NEB Trans Mountain commits to fling a summary of the following informaton with the Board, as and NEB Cond IR No. Prior to Constructon Superseded by NEB 59 TMPL has fled comprehensive informaton on worker camps under Conditon 59 regarding Worker when it becomes available in August 2017 or thereafer, and prior to commencing any camp site 49.1 Conditon Accommodaton Strategy. In a compliance submission dated September 1, 2017, TMPL advised that actvity in Spread 5B: confrmaton that the lease agreement for the Cheam camp has been an applicaton had been fled with the BCOGC seeking a Crown License of Occupaton for the completed; and an update to the camp site locaton in Hope, BC. proposed Blue River camp site, also referred to as the Cheam camp (Filing ID A85812-3 at PDF Page 4). TMPL later advised that the previously contemplated Blue River camp had been relocated to a new site on the Ohamil No. 1 Reserve near Hope, BC (Filing ID C06896). The CER accepted this camp site locaton through Leter Report No. 52 dated October 26, 2020 (Filing ID C09122). 3603 Pipeline Constructon Province of Britsh Columbia In the unlikely event that pipeline constructon has resulted in diminished water quality or quantty Province BC IR No. During Constructon Superseded by NEB 72 Topic covered in EPP fled under Conditon 72. The Environmental Protecton Plan fled under and is directly related to the constructon or operaton of the pipeline, Trans Mountain will re- 1.1.38c Conditon Conditon 72 provides that a potable water supply will be re-established or replaced as required establish or replace a potable water supply. should a registered or known water well be damaged by constructon (Filing ID C01961 at PDF Page 34). The Groundwater Management secton in Appendix G provides more informaton and detailed mitgaton measures for groundwater resources (PDF Pages 336-341). 3620 Pipeline Constructon City of Burnaby Trans Mountain will abide by PPA requirements and fees for its expansion in the City of Burnaby. Non-Regulatory Prior to Constructon No Longer On January 18, 2018, the NEB issued its Reasons for Decision in relaton to a consttutonal queston Commitment Applicable on the applicability of the City of Burnaby's Preliminary Plan Approval applicaton process (Filing ID A89360). In the circumstances of the case, the NEB granted TMPL relief from having to obtain PPAs for its federally-regulated pipeline expansion project. 3629 Pipeline Constructon Village of Valemount Trans Mountain will contact solid waste management consultant re Valemount landfll capacity . Non-Regulatory Prior to Constructon Complete Commitment 3635 Pipeline Constructon Regional District of Fraser- Trans Mountain will maintain consistent access to the Valemount landfll during constructon. Non-Regulatory During Constructon In Progress Fort George Commitment 3661 Pipeline Constructon District of Clearwater Trans Mountain will replace fragile asbestos cement pipes (existng District's water and sanitary Non-Regulatory During Constructon Superseded by NEB 14, 49 lines) prior to mainline constructon. Commitment Conditon 3670 Pipeline Constructon City of Chilliwack Trans Mountain commits to using biodegradable hydraulic fuid for the pipeline secton from the Non-Regulatory During Constructon Scoping western limit of Watson Road to the western property line of 45560 South Sumas Road. Commitment 3693 Pipeline Constructon City of Coquitlam Trans Mountain will conduct post constructon video inspectons of all disrupted storm and sanitary Non-Regulatory During Operatons Scoping service connectons in the City of Coquitlam. Commitment 3700 Pipeline Constructon City of Chilliwack Trans Mountain will use biodegradable hydraulic fuid for the pipeline secton from the western limit Non-Regulatory During Constructon In Progress of Watson Road to the western property line of 45560 South Sumas Road. Commitment 3703 Pipeline Constructon Workshop Partcipants Constructon tming in agricultural areas of the Fraser Valley will be undertaken in a manner to Non-Regulatory During Constructon Superseded by NEB 72 The Environmental Protecton Plan fled under Conditon 72 denotes that constructon will be atempt to minimize impacts to the local farmers. Local ground conditons may afect the Commitment Conditon scheduled to reduce interference with landowners and agricultural operatons in accordance with contractor’s constructon plan. If agricultural lands are in irrigaton, Trans Mountain commits to the Line List, where feasible (Filing ID C01961 at PDF Page 34). As a complement to the main ensurring the irrigaton is not interrupted. provisions of the EPP, an Agricultural Management Plan is set out as part of Appendix G (at PDF Pages 289-298). 3705 Pipeline Constructon City of Coquitlam Trans Mountain will address methane in its plans. Non-Regulatory Prior to Constructon Superseded by NEB 72 The TMEP Environmental Protecton Plan recognizes methane at current and former landfll sites as Commitment Conditon a potental contaminant of concern with associated requirements for landfll gas monitoring during constructon actvites (Filing ID C01961, PDF Pages 322-323). The EPP also specifes that engineering controls are to be used if thresholds are exceeded, such as for example ventlaton to minimize the potental for landfll gas accumulaton in the trenches. 3711 Pipeline Constructon Metro Vancouver Trans Mountain will consult with Metro Vancouver regarding infrastructure and utlites prior to Non-Regulatory Prior to Constructon Superseded by NEB 49 constructon. Commitment Conditon 3712 Pipeline Constructon District of Clearwater Trans Mountain commits to replacing old utlites pipes for the width of the Right-of-Way (ROW) Non-Regulatory During Constructon Superseded by NEB 14, 49 when crossing pipes during constructon. Commitment Conditon 3717 Pipeline Constructon Metro Vancouver Trans Mountain commits to consult with Metro Vancouver in the development of the Projects Non-Regulatory Prior to Constructon Superseded by NEB 49 constructon schedule within the Coquitlam Landfll site. Commitment Conditon 3819 Pipeline Constructon City of Coquitlam Trans Mountain will repave the full width of roads requiring longitudinal open cut constructon Non-Regulatory During Constructon Superseded by NEB 49 (excluding United Boulevard). Commitment Conditon 3962 Pipeline Constructon NEB Trans Mountain commits to fling a summary of the following informaton with the Board, as and NEB Cond IR No. Project Lifecycle Superseded by NEB 59 TMPL has fled comprehensive informaton on worker camps under Conditon 59 regarding Worker when it becomes available in August 2017 or thereafer, and prior to commencing any camp site 49.1 Conditon Accommodaton Strategy. In a compliance submission dated September 1, 2017, TMPL advised that actvity in Spreads 3, 4, and 5A: the fnalized camp site locaton in Clearwater, BC; and confrmaton lease agreements had been executed for the Valemount, Clearwater, and Merrit camp sites (Filing that the lease agreements for the Valemount, Clearwater and Merrit camps and the permit/License ID A85812-3 at PDF Page 4). TMPL further advised that an applicaton had been fled with the of Occupaton for the Blue River camp, have been received. BCOGC seeking a Crown License of Occupaton for the proposed Blue River camp site. By leter dated February 11, 2020, TMPL subsequently advised that the planned Valemount camp had been relocated to an alternate locaton some 3 km to the southwest of the village (Filing ID C04645). TMPL also subsequently advised that the previously contemplated Blue River camp had been relocated to a new site on the Ohamil No. 1 Reserve near Hope (Filing ID C06896). The CER accepted these various proposed camp sites, with recogniton that appropriate arrangements had been made (Filing IDs A86331, C05084, C09122).

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3969 Pipeline Constructon NEB Trans Mountain commits to placing warning signs up and downstream of all freshwater navigable NEB Cond IR No. 9.5 During Constructon Superseded by NEB 48 Navigaton and Navigaton Safety Plan fled under Conditon 48 including with this signage provision waterway crossings during constructon, that are 1.2 x 1.2 metres in size, at the minimum distance Conditon (Filing ID A90948-3 at PDF Page 86). set out Table 9.2. of the response to NEB Conditon IR No 9.6. 3970 Pipeline Constructon NEB Trans Mountain commits to, at locatons where the pipeline crosses a navigable waterway that NEB Cond IR No. 9.5 Prior to Operatons Superseded by NEB 48 Navigaton and Navigaton Safety Plan fled under Conditon 48 including with this signage provision potentally support commercial marine trafc, placing signs at the crossing site, post-constructon, Conditon (Filing ID A90948-3 at PDF Page 86). that indicate the presence of the pipeline crossing and include a “No Anchorage” and “No Dredging” warning. 3979 Pipeline Constructon Natural Resources Canada A pre-constructon tmber cruise will be completed to determine the economically operable and GoC NRCan IR No. Prior to Constructon Superseded by NEB 72 Timber salvage operatons are being conducted in accordance with the Timber Salvage Plan fled merchantable tmber volume for the constructon right-of-way, and during the tmber cruise, areas 1.09.1 Conditon and accepted under Conditon 72 (reference Filing IDs A90966-12, A91896, and A99378). Trans along the constructon right-of-way with forest health concerns or actvity will be identfed and Mountain is following appropriate provincial protocols for the advance estmaton of merchantable mapped, for Spread 2. tmber and the securing of cutng authorizatons. 3980 Pipeline Constructon Natural Resources Canada A pre-constructon tmber cruise will be completed to determine the economically operable and GoC NRCan IR No. Prior to Constructon Superseded by NEB 72 Timber salvage operatons are being conducted in accordance with the Timber Salvage Plan fled merchantable tmber volume for the constructon right-of-way, and during the tmber cruise, areas 1.09.1 Conditon and accepted under Conditon 72 (reference Filing IDs A90966-12, A91896, and A99378). Trans along the constructon right-of-way with forest health concerns or actvity will be identfed and Mountain is following appropriate provincial protocols for the advance estmaton of merchantable mapped, for Spread 3. tmber and the securing of cutng authorizatons. 3981 Pipeline Constructon Natural Resources Canada A pre-constructon tmber cruise will be completed to determine the economically operable and GoC NRCan IR No. Prior to Constructon Superseded by NEB 72 Timber salvage operatons are being conducted in accordance with the Timber Salvage Plan fled merchantable tmber volume for the constructon right-of-way, and during the tmber cruise, areas 1.09.1 Conditon and accepted under Conditon 72 (reference Filing IDs A90966-12, A91896, and A99378). Trans along the constructon right-of-way with forest health concerns or actvity will be identfed and Mountain is following appropriate provincial protocols for the advance estmaton of merchantable mapped, for Spread 4. tmber and the securing of cutng authorizatons. 3982 Pipeline Constructon Natural Resources Canada A pre-constructon tmber cruise will be completed to determine the economically operable and GoC NRCan IR No. Prior to Constructon Superseded by NEB 72 Timber salvage operatons are being conducted in accordance with the Timber Salvage Plan fled merchantable tmber volume for the constructon right-of-way, and during the tmber cruise, areas 1.09.1 Conditon and accepted under Conditon 72 (reference Filing IDs A90966-12, A91896, and A99378). Trans along the constructon right-of-way with forest health concerns or actvity will be identfed and Mountain is following appropriate provincial protocols for the advance estmaton of merchantable mapped, for Spread 5A. tmber and the securing of cutng authorizatons. 3983 Pipeline Constructon Natural Resources Canada A pre-constructon tmber cruise will be completed to determine the economically operable and GoC NRCan IR No. Prior to Constructon Superseded by NEB 72 Timber salvage operatons are being conducted in accordance with the Timber Salvage Plan fled merchantable tmber volume for the constructon right-of-way, and during the tmber cruise, areas 1.09.1 Conditon and accepted under Conditon 72 (reference Filing IDs A90966-12, A91896, and A99378). Trans along the constructon right-of-way with forest health concerns or actvity will be identfed and Mountain is following appropriate provincial protocols for the advance estmaton of merchantable mapped, for Spread 5B. tmber and the securing of cutng authorizatons. 3984 Pipeline Constructon Natural Resources Canada A pre-constructon tmber cruise will be completed to determine the economically operable and GoC NRCan IR No. Prior to Constructon Superseded by NEB 72 Timber salvage operatons are being conducted in accordance with the Timber Salvage Plan fled merchantable tmber volume for the constructon right-of-way, and during the tmber cruise, areas 1.09.1 Conditon and accepted under Conditon 72 (reference Filing IDs A90966-12, A91896, and A99378). Trans along the constructon right-of-way with forest health concerns or actvity will be identfed and Mountain is following appropriate provincial protocols for the advance estmaton of merchantable mapped, for Spread 6. tmber and the securing of cutng authorizatons. 4024 Pipeline Constructon NEB Trans Mountain commits to placing warning signs up and downstream of all freshwater navigable NEB Cond IR No. 9.5 During Constructon Superseded by NEB 48 Navigaton and Navigaton Safety Plan fled under Conditon 48 including with this signage provision waterway crossings during constructon, that are 1.2 x 1.2 metres in size, at the minimum distance Conditon (Filing ID A90948-3 at PDF Page 86). set out Table 9.2. of the response to NEB Conditon IR No 9.6. 4483 Pipeline Constructon Cedar Springs Strata Trans Mountain commits to restoring the proposed pipeline right-of-way to pre-constructon grades Cedar Springs Strata During Constructon In Progress Corporaton and profles to the extent practcal to maintain natural drainage paterns. Trans Mountain will Corporaton employ any temporary erosion control devices (e.g., sediment fencing, berms, mulch, matng, etc.) Preliminary (P) IR No to minimize any soil erosion. 1.03c 4493 Pipeline Constructon NEB Trans Mountain commits to reversing the modifed Watercourse Diversion work in the event detailed Request re: During Constructon Scoping route proceedings for Segment 7.7 result in changes to the Westridge Marine Terminal Portal Site. Westridge Tunnel Portal Site Watercourse Diversion Certfcate OC-65 4494 Pipeline Constructon Landowners - Sugarloaf Trans Mountain commits to working with Sugarloaf Ranches Ltd. and KGHM Ajax Mining Inc. during CER Route Hearing During Constructon Scoping Estmated Completon Timeline: Q4 2020 Ranches Ltd., KGHM Ajax constructon to establish access plans to minimize disrupton from constructon actvites in a safe Decision p. 14 Mining Inc. manner. All constructon actvites will follow the Project Safety Plans for the safety of workers and the public in direct proximity to work zones. This will include securing the constructon site to prevent unauthorized or unintended access by the public which may expose them to work related hazards. 4538 Pipeline Constructon Landowner - Redwoods Golf Trans Mountain commits to ensuring access designs will include all appropriate signage to allow Detailed Route During Constructon Scoping Course Ltd. (Redwoods) constructon vehicles to use the access safely. Trafc Control Personnel will manage trafc and direct Hearing, Writen pedestrians and cyclists on the roadway areas when allowing constructon vehicle access. Evidence (para 27) 19 Pipeline Engineering City of Abbotsford Trans Mountain commits to a trenchless crossing of Sumas Mountain Road. If trenchless method is City of Abbotsford IR During Constructon Complete unsuccessful, Trans Mountain commits to consult and coordinate actvites with the City of No. 1.02b Abbotsford to install the crossing on a low trafc day such as a Sunday to keep disrupton at this locaton to a minimum. 23 Pipeline Engineering City of Abbotsford Trans Mountain will bore under paved and high-use roads, where practcal. Where minor roads are City of Abbotsford IR Prior to Constructon Complete crossed that may afect established community use/access routes, Trans Mountain will complete No. 1.01c open cut crossing within one day, to the extent practcal. 35 Pipeline Engineering City of Abbotsford Trans Mountain commits to working with the City of Abbotsford and the BC Dyking Authority in City of Abbotsford IR Prior to Constructon In Progress developing a detailed constructon plan with respect to the dykes, should the Sumas River be No. 2(c).01 constructed via the isolate and trench method.

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64 Pipeline Engineering NEB Where a trenchless crossing is unsuccessful or not feasible and a trenched (i.e., isolated if water Applicaton Volume During Constructon Superseded by NEB 51 present/open cut if dry or frozen to the botom) installaton is necessary, Trans Mountain will engage 5A, 7-16. Conditon a geotechnical engineer regarding additonal mitgaton measures to prevent and control terrain instability, as needed, during constructon. 68 Pipeline Engineering NEB As a general principle, Trans Mountain will avoid physical disturbances to highways or major roads Applicaton Volume During Constructon Superseded by NEB 73, 104 Crossing methodologies for all major road/highway crossings shown on engineering alignment with high community use. Any minor roads that impact community use or access will be crossed in 5B, 7-132. Conditon sheets being fled under Conditon 104. Trafc control plans being fled under Conditon 73 for any one day using an open cut method to minimize community efects. such crossing requiring an open cut method. 71 Pipeline Engineering NEB Trans Mountain will bore under paved and high use roads where any physical disturbance would be Applicaton Volume During Constructon Superseded by NEB 73, 104 Crossing methodologies for all major road/highway crossings shown on engineering alignment more than a nuisance. 5B, 8-62. Conditon sheets being fled under Conditon 104. Trafc control plans being fled under Conditon 73 for any such crossing requiring an open cut method. 76 Pipeline Engineering NEB Trans Mountain will implement a range of measures to reduce disturbance to community assets and Applicaton Volume Prior to Constructon Superseded by NEB 13, 14, 49, 59, 62, This commitment cuts across many conditons and goes to the very core of project planning and events. Key mitgaton measures include: avoiding important community features and assets during 5B, 7-55. Conditon 73 executon processes and related stakeholder and Indigenous engagement eforts. right-of-way fnalizaton, narrowing the right-of-way in select areas, scheduling constructon to avoid important community events where possible, communicaton of constructon schedules and plans with community ofcials, and other ongoing consultaton and engagement with local and Aboriginal governments. 79 Pipeline Engineering NEB Hydrostatc testng (i.e., pressure testng using water) will be used to verify the pipeline integrity Pre-Applicaton During Constructon Superseded by NEB 112, 113 Pressure testng specifcatons and hydrostatc testng plans are being fled under Conditons 112 afer welding is complete. At major watercourse crossings, pipe sectons will be pretested before Project Descripton, Conditon and 113. installaton. Water will be drawn from suitable sources and returned to the appropriate watersheds p 19. in accordance with permit requirements. To minimize the total amount of water withdrawn for test purposes, where practcable, water will be moved along the pipeline segments for reuse in multple tests. Upon successful test completon, the test sectons will be dewatered using pigs (foam or rubber sealing plugs) propelled through the pipeline by compressed air. 96 Pipeline Engineering NEB A photographic report of the three campaigns will be provided as part of Technical Update #2, NEB IR No. 2.096 Prior to Constructon Superseded by NEB 16 Subject informaton fled in conjuncton with Technical Update #2 on August 22, 2014 (Filing ID including relevant photographs with descriptons, showing representatve terrain and potental Conditon A62401, B265-7 through B256-19). Geohazard in each physiographic region along the proposed route, in support of the fndings of the Terrain Mapping and Geohazard Inventory Report. Commitment to reissue the Terrain report and map legend incorporatng the above correctons as part of Technical Update #2. 99 Pipeline Engineering NEB Trans Mountain will atempt to identfy problematc conditons prior to the commencement of NEB IR No. 4.08a Prior to Constructon Superseded by NEB 51 Open-cut watercourse crossings are within the scope of the Field Changes Manual for Geohazard excavaton at all trenched watercourse crossings. Conditon Mitgaton fled under Conditon 51 on May 1, 2017 (Filing ID A83057). 123 Pipeline Engineering Township of Langley Trans Mountain will engage with the Township of Langley to identfy existng infrastructure and Langley IR No. 1.12a Prior to Constructon Superseded by NEB 14, 49 future infrastructure growth plans. Conditon 130 Pipeline Engineering Adams Lake Indian Band In the event that it may be necessary to disturb Potentally Acid Generatng (PAG) material during ALIB IR No. 1.3.16c Prior to Constructon Superseded by NEB 72 Metal Leaching and Acid Rock Drainage Management Plan provided as Secton 4.1 of the the constructon phase of the Project, an Acid Rock Drainage Management Plan (refer to Appendix C Conditon Environmental Protecton Plan fled on June 1, 2017 (Filing ID A84106, A5Q7J9). of Volume 6B) will be developed prior to constructon to ensure that the receiving environment (including fsh and fsh habitat) is not adversely impacted. 131 Pipeline Engineering Ashcrof Indian Band, Asini Trans Mountain will submit to the NEB the completed risk assessment for Line 2 in Q3 2014. NEB IR No. 1.81a, Prior to Constructon Superseded by BC 35 The completed risk assessment for Line 2 was fled in conjuncton with Technical Update #1 on Wachi Nehiyawak Allan R IR No. 1.17o, EAO August 1, 2014 (Filing ID A62083, B248-18). This aspect was also later addressed in the pipeline risk Traditonal Band, Burnaby Allan R IR No. 1.17p, assessment literature fled under Conditon 15 on March 1, 2017 (Filing ID A81928). Residents Opposing Kinder Amy C IR No. 1.3y, Morgan Expansion - BROKE, Ashcrof IB No. Chris Amy, City of 1.3.4.f, Ashcrof IB Abbotsford, City of Burnaby, No. 1.3.4.f, BROKE IR City of Coquitlam, City of No. 1.5d, City of Port Moody, City of Surrey, Abbotsford - Dorothy Doherty, Edmonton Atachment - Table, & Area Land Trust, City of Abbotsford IR Environment Canada, Fraser No. 1.14a, City Valley Regional District, Burnaby IR No. Kwantlen First Naton, Living 1.07.14 i Oceans Society, NEB, Neskonlith Indian Band, New Democratc Party of Canada, Province of Britsh Columbia, Robyn Allan, Simpcw First Naton, Strata NW 313, T. Buck Suzuki Environmental Foundaton, Township of Langley, Upper Nicola Band 133 Pipeline Engineering City of Abbotsford Graphs will be provided of spill volumes and valves in relaton to High Consequence Areas (HCAs) Trans Mountain Prior to Constructon Superseded by NEB 17 The subject informaton was provided in Technical Update #1 dated August 1, 2014 (Filing ID with the Technical Update No. 1 on August 1, 2014. response to City of Conditon A62087, B248-23). This form of informaton also entered into the Line 2 Valve Locatons Report fled Abbotsford IR under Conditon 17 (A81943). moton - IR No. 1.12c

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134 Pipeline Engineering City of Abbotsford Trans Mountain will provide a descripton of the relatonship between depth of cover and the City of Abbotsford IR Prior to Constructon Complete Pipeline Risk Assessment Report fled as part of Technical Update #1 on August 1, 2014 (Filing ID potental for 3rd Party Damage in the risk report that will be submited in Q3 2014. No. 1.12b A62087, B248-18). Third party damage risk addressed in Secton 3.3 of Risk Assessment Support Document (startng at PDF Page 45). 135 Pipeline Engineering City of Abbotsford Trans Mountain will identfy site-specifc mitgaton measures for parks and trails within the City of City of Abbotsford IR Prior to Constructon Superseded by NEB 72 Abbotsford during detailed engineering phase and fnalizaton of the pipeline constructon right-of- No. 1.04b Conditon way and included in the Pipeline Environmental Protecton Plan. 139 Pipeline Engineering City of Abbotsford, City of A risk assessment for Line 2 will be fled with the Technical Update No. 1 on August 1, 2014. City of Abbotsford Prior to Constructon Complete Line 2 Preliminary Risk Results Report fled in conjuncton with Technical Update #1 on August 1, Vancouver Atachment - Table 2018 (Filing ID A62087, B248-18). Pipeline Risk Assessment Report for Line 2 was later fled under 1.12 (a) and (b), City Conditon 15 on March 1, 2017 (Filing ID A81928). of Vancouver - Atachment - Table 143 Pipeline Engineering City of Burnaby The feasibility report for horizontal directonal drilling (HDD) would be available in early Q4, 2014, City Burnaby IR No. Prior to Constructon Complete Conditon 49: Technical Working Group Report, April 13, 2017, Table 5.1, Page 21; TM Response to and in tme for the next round of NEB IR’s on December 18, 2014. Trans Mountain would willingly 1.33.29h City of Burnaby comment re: lack of engagement. (Filing ID: A82625). meet with the City of Burnaby ahead of submitng the report to the NEB to share the results and alignment if the HDD or tunnel opton is deemed technically feasible. 144 Pipeline Engineering City of Burnaby The quality management plan will be developed during the detailed engineering and design phase City Burnaby IR No. Prior to Constructon Superseded by NEB 9 Quality management plan fled under Conditon 9 (A81598,and follow-up submissions). as per Secton 2.7, Volume 4A in Applicaton. 1.34.04b Conditon 148 Pipeline Engineering City of Burnaby Trans Mountain will commit to consult with the City of Burnaby when the pipeline is adjacent or City Burnaby IR No. Prior to Constructon Superseded by NEB 14, 49 crossing over City utlites to mutually agree on separaton distances so that the City can access its 1.33.15a Conditon mains for operatons purposes. 149 Pipeline Engineering City of Burnaby Trans Mountain will consider extra depth of cover on the Line 2 pipeline on a site-specifc basis in City Burnaby IR No. During Constructon In Progress Trans Mountain will follow the pipeline depth of cover provisions set out in the CSA Z662-19 considering any planned installatons of engineered road structures by the City of Burnaby. 33.16n, pg. 541 standard and its own specifcatons and will consider extra cover based on site-specifc circumstances and detailed engineering consideratons. 150 Pipeline Engineering City of Burnaby Trans Mountain will consult with all existng infrastructure owners and endeavour to mitgate any City Burnaby IR No. Prior to Constructon Superseded by NEB 14, 49 future infrastructure conficts or impediments. 1.33.08e; NEB Route Conditon Hearing TMEP Evidence Seg 7 Burnaby 152 Pipeline Engineering City of Burnaby Trans Mountain will determine fnal crossing procedures in consultaton with City of Burnaby and BC City Burnaby IR No. Prior to Constructon Superseded by NEB 14, 49 Ministry of Transport and Infrastructure during the detailed engineering and design phase of the 1.43.03c Conditon Project. 157 Pipeline Engineering City of Coquitlam The City of Coquitlam will be consulted to ascertain site specifc design consideratons at each City of Coquitlam IR Prior to Constructon Superseded by NEB 14, 49 culverted watercourse crossing. No. 1.C.1c Conditon 158 Pipeline Engineering City of Coquitlam Trans Mountain is contnuing to investgate the crossing and will provide an update on routng in the City of Coquitlam IR Prior to Constructon Complete Fraser River crossing area in Technical Update No. 1, to be submited to the NEB in Q3 2014. The No. 1.A.1 update will include additonal informaton and a map of the proposed and alternatve corridors being considered. 159 Pipeline Engineering City of Coquitlam Trans Mountain is prepared to: • work with municipalites in the planning and engineering, and City of Coquitlam IR Project Lifecycle Superseded by NEB 14, 49 detailed design to accommodate future growth and minimize potental future impacts to existng No. 1.F.4 City of Conditon infrastructure; • pay for reasonable costs to inspect, relocate if needed, and protect their Coquitlam IR No. infrastructure during pipeline constructon; • work with the municipalites to fulfll federal 1.F.5 City of requirements for pipeline protecton including ground disturbance measures imbedded in the NEB Coquitlam IR No. crossing regulatons; and • construct the Project, and operate it and the existng pipeline in 1.F.6b accordance with practces and procedures that are consistent with all other utlity service and development infrastructure. 160 Pipeline Engineering Fraser Valley Regional Trans Mountain will work with the Fraser Valley Regional District (FVRD) in applying for all permits to FVRD IR No. 1.35c Prior to Constructon Complete Trans Mountain submited on October 21, 2015 to the Fraser Valley Regional District (FVRD) a leter District undertake such work. In additon, FVRD will be provided an opportunity to review and comment on along with a report that represents Geohazard Inventory and Terrain Stability Mapping within Ted the terms of reference for a site specifc study of the Popkum-Bridal Falls area, however the scope Creek to Bridal Falls area along the TMEP alignment, as part of the commitment to work together and terms of engagement of the study will remain the purview of the Project. with FVRD on beter understanding the Bridal Falls geotechnical landscape. 161 Pipeline Engineering Natural Resources Canada Trans Mountain will implement weld toughness testng of submerged arc welds at minus 5 degrees GoC NRCan IR No. Prior to Constructon Superseded by NEB 111 Addressed through the Joining Programs fled under Conditon 111. Celsius (-5ºC) temperature. 1.10.02b Conditon 166 Pipeline Engineering Natural Resources Canada The Trans Mountain Coatng Specifcatons will be updated during the Detailed Engineering and GoC NRCan IR No. Prior to Constructon Complete Two-Part Liquid Shop Applied Coatng Specifcaton (Document #TMEP-GC0336, Rev 3) and PBE FBE Design Phase of the Project and will incorporate the requirements of the latest editon of the 1.10.6c Plant Applied Coatng Specifcaton (Document #TMEP-GC3105, Rev 10) updated in 2019. CSA Z662- relevant CSA coatng standards at that tme. 19 and CSA Z245-18 standards referenced. 169 Pipeline Engineering Katzie First Naton Trans Mountain will not take or remove any land from Surrey Bend Regional Park. Trans Mountain Katzie FN IR No. Prior to Constructon Superseded by NEB 7 On March 17, 2017, Trans Mountain fled a report under Conditon 7 enttled "South Fraser will seek to acquire an easement for the installaton and operaton of a buried pipeline from the Park 1.02a Conditon Perimeter Road Route Realignment (Avoiding Surrey Bend Regional Park) Environmental and Socio- authority. Ownership of the land will remain with the Park authority. Economic Assessment" (Filing ID A82140). 171 Pipeline Engineering Metro Vancouver Trans Mountain will reduce that width to a negotated minimum, provided that safe operaton and Metro Vancouver IR Prior to Constructon Superseded by NEB 14, 49 maintenance of the new proposed pipeline can be ensured, in locatons of restricted right-of-way No. 1.1.2.01b Conditon opportunity.

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173 Pipeline Engineering Metro Vancouver Trans Mountain is willing to work with Metro Vancouver on crossings and proximal work on its Metro Vancouver IR Prior to Constructon Complete infrastructure. Trans Mountain is also willing to accommodate reasonably foreseeable plans for No. 1.1.1.07b municipal infrastructure in the design and placement of the pipeline. 174 Pipeline Engineering Metro Vancouver Trans Mountain will develop details of the constructon methodology, to be used for the pipeline Metro Vancouver IR Prior to Constructon Complete installaton through the Coquitlam Landfll, during the Engineering and Detailed Design Phase of the No. 1.1.2.02b Project. 184 Pipeline Engineering Township of Langley All mainline block valves (MLBVs) in the Township of Langley will be automated. Langley IR No. 1.05c During Constructon Complete Automaton of subject mainline block valves confrmed in the Line 2 Valve Locaton Report fled under Conditon 17 on March 1, 2017 (Filing ID A81943-3, entries for 2K1135, 2K1140, and 2K1145 on PDF Pages 13 and 14). 187 Pipeline Engineering Township of Langley Trans Mountain will commit to designing and constructng the pipeline, with risk based design Langley IR No. 1.08b Prior to Constructon Superseded by NEB 15, 17, 18 ALARP principle underpinned flings made under Conditons 15, 17, and 18 (Pipeline Risk employed to manage risks following the principle of As Low as Reasonably Practcable (ALARP). Conditon Assessment, Valve Locatons on Line 2, Valve Locatons and Upgrades on Line 1. 188 Pipeline Engineering Upper Nicola Band An Acid Rock Drainage (ARD) management plan will be developed as part of detailed engineering Upper Nicola Band Prior to Constructon Superseded by NEB 72 Metal Leaching and Acid Rock Drainage Management Plan provided as Secton 4.1 of the and design. Trans Mountain will conduct inspectons and post-constructon seepage sampling at IR No. 1.03l Conditon Environmental Protecton Plan fled under Conditon 72 on June 1, 2017 (Filing ID A84106, A5Q7J9). areas where potentally acid generatng material has been identfed or exposed during constructon. Sampling protocols included in this plan. 189 Pipeline Engineering Upper Nicola Band Prior to reactvaton of the segments on Line 1, Trans Mountain will fle Leave to Open Upper Nicola Band Prior to Operatons Superseded by NEB 19 This subject mater will be covered in the engineering assessment to be fled under Conditon 19 documentaton including documentaton of repairs and testng that supports restart of these IR No. 1.04d Conditon (with the leave to open process not applying to reactvaton. pipeline segments. 192 Pipeline Engineering NEB During the detailed engineering and design phase, Trans Mountain will develop a horizontal NEB IR No. 1.80d Prior to Constructon Complete Horizontal Directonal Drill Constructon Specifcaton (TMEP-MP3121 fled in conjuncton with directon drill specifcaton and provide it to the NEB by September 30, 2014. Technical Update #3 on September 4, 2014 (Filing ID A62628, B260-36 and B260-37). 193 Pipeline Engineering NEB Trans Mountain will submit to the NEB revised outlow volumes for Line 2 in Q3 2014. Trans NEB IR No. 1.96a Prior to Constructon Complete This commitment was fulflled by Technical Update #1 dated August 1, 2014 (Filing ID A62083, B248- Mountain will submit revised outlow volumes for Burnaby – Westridge delivery lines, refectng 23. revised routng, as well as to provide results for individual and combined drain down volumes in Q3 2014. 197 Pipeline Engineering NEB A revised version of the Terrain report and map legend with the above correctons will be issued. NEB IR No. 2.097a Prior to Constructon Complete Subject informaton fled in conjuncton with Technical Update #2 on August 22, 2014 (Filing ID A62401, B265-7 through B256-19 198 Pipeline Engineering NEB A risk management plan will be developed as part of detailed engineering and design, and will be NEB IR No. 2.099 Prior to Constructon Superseded by NEB 51 Field Changes Manual for Geohazard Mitgaton fled under Conditon 51 on May 1, 2017 (Filing ID updated as additonal site specifc informaton is obtained through detailed investgatons, and Conditon A83057). modifed as Geohazard are encountered during constructon. 200 Pipeline Engineering NEB Although no actve faults (where rupture has occurred in the last 11,000 years) have been identfed Part 2 – Consultaton Prior to Constructon Superseded by NEB 69 Fault Studies Report fled under Conditon 69 on May 15, 2017 (Filing ID A83584). in Britsh Columbia, studies will be conducted as part of the detailed engineering and design phase Update No. 1, Conditon in an atempt to further confrm the presence or absence of actve faults crossing or running close to Volume 4A – Project the route. Design and Executon – Engineering Secton 2.9.3 201 Pipeline Engineering NEB At major watercourse crossings, and other areas where lateral spreading as a result of liquefacton Part 2 – Consultaton Prior to Constructon Superseded by NEB 68 Liquefcaton Potental Report fled under Conditon 68 on May 15, 2017 (Filing ID A83593). has the potental to occur, the pipeline will be designed to resist the potental ground movement Update No. 1, Conditon (both transient and permanent) associated with the design level event. Volume 8A, Marine - Marine Transportaton Secton 4.3.14.1 203 Pipeline Engineering NEB During the detailed engineering design phase, site specifc designs will be undertaken for any Stage 1 NEB IR No. 2.101c Prior to Constructon Superseded by NEB 65 Hydrology Reports for Notable Watercourse Crossings fled under Conditon 65 on May 19, 2017 watercourses that require scour mitgaton designs and any identfed as having additonal Conditon (Filing IDs A83733 and A83735). constructability challenges. 207 Pipeline Engineering NEB If horizontal directonal drilling is used, the depth of cover will be a minimum of 10 m below the Part 2 – Public During Constructon Complete deepest part of the Fraser River. Consultaton Update No. 1 212 Pipeline Engineering NEB Once an optmized valve placement design for Line 2 has been developed through the risk-based NEB IR No. 2.110c Prior to Constructon Superseded by NEB 17 The inital response was provided as part of Technical Update #4 dated December 1, 2021 (Filing ID design process, Trans Mountain will fle a writen report that summarizes the risk-based design Conditon A64686, Document A4F5A1). Topic further addressed through the Line 2 Valve Locatons Report process that was undertaken for valve optmizaton, and provides the ratonale for the fnal valve fled under Conditon 17 on March 1, 2017 (Filing ID A81943). placement design. It is Trans Mountain’s intent that this report, which will be submited prior to December 1, 2014, will serve as the writen engineering assessment report for valve placement locaton. 214 Pipeline Engineering NEB The new Line 2 pipeline segments will be designed to withstand a one-in-2,475-year seismic event, Applicaton Volume Prior to Constructon Superseded by NEB 68 The Liquefacton Potental Report fled under Conditon 68 is based on the one-in-2475-year seismic consistent with current requirements of the Natonal Building Code of Canada. 1, secton 2.5.1. Conditon event criterion used by the Natonal Building Code of Canada (Filing ID A83593; see A83593-2 at PDF Pages 4 and 6). 215 Pipeline Engineering NEB Trans Mountain confrms that bed scour and lateral erosion will be incorporated into the design for NEB IR No. 2.102e Prior to Constructon Superseded by NEB 65 Hydrology Reports for Notable Watercourse Crossings fled under Conditon 65 on May 19, 2017 crossings. Conditon (Filing IDs A83733 and A83735). 216 Pipeline Engineering NEB Trans Mountain is commited to install the Line 2 pipeline on or adjacent to the existng TMPL right- NEB IR No. 2.048a Prior to Constructon Superseded by NEB 104 Adherence to routng principles exemplifed by engineering alignment sheets fled under Conditon of-way to the extent feasible, to minimize environmental and socio-economic efects and facilitate Conditon 104, environmental alignment sheets fled as part of spread packages, and PPBoR. efcient pipeline operatons.

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217 Pipeline Engineering NEB Trans Mountain to submit to the NEB by June 16, 2014, Map 1 Set: to show High Consequence Areas NEB IR No. 1.92b Prior to Constructon Complete Subject HCA maps fled on June 16, 2014 (Filing ID A61082). (HCAs) provided in Reference ii) or updated HCAs. Trans Mountain to submit to the NEB by June 16, 2014, Map 2 Set: to show areas of geotechnical and seismic hazards, and water crossings. 219 Pipeline Engineering NEB Trans Mountain will complete a pipeline risk assessment and evaluate the need for additonal Applicaton Volume Prior to Constructon Superseded by NEB 15, 130 Addressed through the Pipeline Risk Assessment fled under Conditon 15 on March 1, 2017 (Filing mitgaton measures (e.g., valve spacing, deeper burial or thicker-walled pipe) to reduce threats and 7, 7-76. Conditon ID A81928). The Groundwater Monitoring Program to be fled under Conditon 130 will also have a associated risk to aquifers. focus on aquifers. 228 Pipeline Engineering NEB Trans Mountain will provide a discussion of how the original design of the existng segments meets NEB IR No. 2.134b Prior to Constructon Complete Commitment addressed through Technical Update #3 as fled on September 4, 2014 (Filing ID the requirements of Line 2 as part of the engineering assessment to be fled as part of Technical A62621, Document A4A7Q3). Update No. 2. Refer to the response to NEB IR No. 2.134d for additonal informaton. 229 Pipeline Engineering NEB Trans Mountain will provide a risk ranking for the various wall thicknesses for the new pipeline NEB IR No. 1.81b Prior to Constructon Complete Submited in Technical Update No. 1 (B248-18, A3Z8G1, PDF Page 19 to 20) segments in Q3 2014. 230 Pipeline Engineering NEB Trans Mountain will provide Project-related standards, specifcatons, and manuals that are NEB IR No. 1.76b Prior to Constructon Complete Trans Mountain has provided project-related specifcatons, standards, and manuals whenever developed during detailed engineering and design phase of the Project on an as-requested basis requested during the TMEP regulatory proceedings or wherever required by the TMEP conditons. upon their completon. Any requested engineering-related documents will be provided by end of Q1 2015 while any constructon-related documents will be provided 60 days prior to start of constructon. 231 Pipeline Engineering NEB Trans Mountain will provide to the NEB copies of detailed engineering designs for conditons and NEB IR No. 1.77c Prior to Constructon Complete circumstances not specially or adequately addressed in CSA Z662 or the Onshore Pipeline Regulatons (OPR) as described in the NEB Applicaton Volume 4A, Secton 2.9, 60 days prior to the commencement of constructon of the mainline pipeline in a partcular spread. 235 Pipeline Engineering NEB Trans Mountain will undertake a reassessment of potental outlow volumes using the increased NEB IR No. 2.111 Prior to Constructon Superseded by NEB 18 Addressed through the Line 1 Valve Locatons and Upgrades Report fled under Conditon 18 on average throughput volumes expected on Line 1 post expansion. Conditon April 3, 2017 (Filing IDs A82430 and A82432). 236 Pipeline Engineering NEB Where circumstances exist such that the detailed engineering designs cannot be completed during NEB IR No. 1.77b During Constructon Superseded by NEB 104 Per Conditon 104, updated engineering alignment sheets and drawings being fled at least three this phase, all outstanding detailed engineering designs will be completed and submited to the NEB Conditon months in advance of constructon in any specifc area. 60 days prior to the commencement of constructon of the mainline pipeline in a partcular spread. 242 Pipeline Engineering NEB, Robyn Allan Trans Mountain will submit the risk results for the two existng actve pipe segments that will be NEB IR No. 1.87c, Prior to Constructon Superseded by NEB 15 Initally addressed through Technical Update #2 fled on August 22, 2014 (Filing A62400, B255-38, incorporated into Line 2 using Trans Mountain's risk model for operatng pipelines to the NEB in a Allan R IR No. 1.17e Conditon PDF Pages 11-17 and 26-29). Further addressed through the Pipeline Risk Assessment Report fled supplemental fling in Q3 2014. under Conditon 15 on March 1, 2017 (Filing ID A81928). 243 Pipeline Engineering Robyn Allan Trans Mountain has commited to the following pipeline integrity management actons for existng Allan R IR No. 1.17e Prior to Constructon Complete pipeline segments in additon to the proposed Line 2. For the Reactvaton Segments, as commited to in the response to NEB IR No. 1.86: submit to the NEB fnal engineering assessment by the end of Q3 2014; fle a Threat-Based Assessment for the reactvaton segments in Q3 2014; submit an updated engineering assessment incorporatng the results of the hydrostatc testng and the in-line inspecton. For the currently actve segments of Line 1 that will form part of Line 2, as commited to in the response to NEB IR No. 1.87, Trans Mountain commited to: sbmit the risk results for the two existng actve pipe segments that will be incorporated into Line 2 using Trans Mountain’s risk model for operatng pipelines in a supplemental fling in Q3 2014. For the sectons of Line 1 that will remain in their current operaton as part of that pipeline, Trans Mountain’s pipelines are managed through a Pipeline Integrity Management Program that utlizes regular re-evaluatons of risk as the basis for identfying and prioritzing assessment and risk mitgaton actons. The risk assessment is updated on an annual basis to refect mitgaton eforts such as repairs or capital upgrades associated with our Natural Hazards Management Program. In this regular re-evaluaton of risk, High Consequence Areas receive an enhanced weightng in the risk assessment, and a higher priority for any consideraton of assessment and mitgaton. 244 Pipeline Engineering Robyn Allan Trans Mountain will incorporate data collected over the last 60 years on the existng Trans Mountain Allan R IR No. 1.17h Prior to Constructon Superseded by NEB 15 Addressed through the Pipeline Risk Assessment Report fled under Conditon 15 on March 1, 2017 Pipeline system as input to the hazards and threats in the risk assessment on the Trans Mountain Conditon (Filing ID A81928). Expansion Project. 245 Pipeline Engineering NEB, Parks Canada Agency, Trans Mountain will fle a Threat-Based Assessment for the Darfeld to Black Pines reactvaton NEB IR No. 1.86c, Prior to Constructon Complete Submited in Technical Update No. 2 (B255-36, A4A4E8). Robyn Allan, Upper Nicola segment in Q3 2014. Allan R IR No. 1.17e, Band GoC Parks IR No. 1.1.08, Upper Nicola Band IR No. 1.01a 246 Pipeline Engineering NEB, Parks Canada Agency, Trans Mountain will submit the fnal engineering assessment for the Darfeld to Black Pines Allan R IR No. 1.17e, Prior to Constructon Superseded by NEB 19 Robyn Allan, Upper Nicola reactvaton secton by the end of Q3 2014. NEB IR No. 1.86b, Conditon Band GoC Parks IR No. 1.1.08, Upper Nicola Band IR No. 1.01a 247 Pipeline Engineering Chris Amy Geotechnical investgaton to support horizontal directonal drilling (HDD) along the route will be Amy C IR No. 1.3u Prior to Constructon No Longer The commitment is no longer applicable as Trans Mountain is no longer planning to cross the undertaken in 2014 along Brunete River. Applicable Brunete River. 248 Pipeline Engineering Britsh Columbia Hydro and Trans Mountain commits that on the new sectons of Line 2 to design the crossing of designated BC BC Hydro IR No. Prior to Constructon Complete Power Authority Hydro access tracks to allow a typical BC Hydro work vehicle (normally a BCL-625 design truck) to 1.3.3.3 cross the TMEP pipeline while in operaton without BC Hydro needing to take additonal measures.

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249 Pipeline Engineering Britsh Columbia Hydro and Trans Mountain commits to work with BC Hydro over the next fve months (May to October, 2014) to BC Hydro IR No. Prior to Constructon Complete Compatable use leter agreements negotated and signed of with BC Hydro. Power Authority agree how potental impacts to BC Hydro infrastructure and BC Hydro’s existng Right-of-Way (ROW) 1.1.1.5 rights will be addressed as per response to BC Hydro IR No. 1.2.2.2. 251 Pipeline Engineering NEB Trans Mountain confrms that it intends, where practcal, to observe BC Hydro’s 30 Metre Separaton BC Hydro IR No. Prior to Constructon Complete Requirement, but Trans Mountain also recognizes that there are specifc route locatons where 1.1.1.2 corridor constricton, as a result of terrain and or adjacent development, will make this requirement impractcal. 252 Pipeline Engineering Britsh Columbia Hydro and Trans Mountain is commited to contnued engagement with BC Hydro in the detailed engineering BC Hydro IR No. Prior to Constructon Superseded by NEB 50 This commitment has been addressed through various flings made under Conditon 50. These Power Authority and design of the pipeline and mitgaton of potental adverse efects. 1.1.1.4 Conditon flings show that an AC Mitgaton Report has been produced to the NEB's satsfacton including with appropriate engagement between Trans Mountain and BC Hydro. CER Filing A5L0Q2 including at secton 2.3. 275 Pipeline Engineering BC Nature and Nature A preliminary Geohazard assessment is currently being completed and will be provided as part of NEB IR No. 1.79b, BC Prior to Constructon Complete Commitment met through Quanttatve Geohazard Frequency Assessed that was fled on August 1, Canada, City of Abbotsford, the risk assessment on Line 2 in Q3 2014. Nature Nature Cda 2014 as part of Technical Update #1 (Filing ID A62087, B248-19, A3Z8G2). The aspect of geohazard City of Burnaby, Elizabeth IR No. 1.19a , City assessment and management also eventually entered into several TMEP Conditons, including 15, May, NEB, Province of Burnaby IR No. 51, 65, 66, 68, and 69. Britsh Columbia 1.46.04 s, City Burnaby IR No. 1.33.34a, City of Abbotsford IR No. 1.13a, May E IR No. 1.5a, Province BC F- IR No. 1.1.01a 278 Pipeline Engineering BC Parks, NEB All provincial parks, protected areas and recreaton areas will be traversed with 11.8 mm wall BC Parks boundary Prior to Constructon Complete thickness pipe. All major watercourse crossings in parks and protected areas will be constructed adjustment using heavy wall pipe. The McQueen Creek crossing will be 14.7mm wall thickness pipe. applicaton (August 2014) 461 Pipeline Engineering NEB Trans Mountain commits to fle the Potental Acid Generatng (PAG) waste cover and liner designs NEB Cond IR No. 3.3 Prior to Constructon Superseded by NEB 29 Commitment addressed by Conditon 29: Burnaby Mountain Tunnel - Rock Mass and Waste Rock with the NEB upon completon of designs. Conditon Management, IR 3 (ID A88929). 466 Pipeline Engineering NEB Trans Mountain will work diligently with the afected First Natons and will advise the NEB on or NEB IR No. 3.017a, Prior to Constructon Superseded by NEB 7 before May 1, 2015 as to whether an agreement regarding on-reserve routng has been reached. NEB F-IR No. 3.017a Conditon 491 Pipeline Engineering NEB Trans Mountain will complete the hydraulic analyses for the Line 1 and Line 2 atypical fow rate NEB IR No. 3.051a.3 Prior to Constructon Complete Trans Mountain completed a Line 1 Transient Study, a Line 2 Steady State Study, and a Line 2 scenarios and start-up and shut-down conditons during the detailed engineering and design phase, Transient Study to inform hydraulic design and eventual operatons. planned for 2016. 492 Pipeline Engineering NEB Trans Mountain will complete a transient analyses for Line 1 and Line 2 to confrm that pressures will NEB IR No. 3.051b Project Lifecycle Complete As already noted, transient studies completed for both Lines 1 and 2. remain within required limits during sudden changes in operatng conditons. 493 Pipeline Engineering NEB Trans Mountain will incorporate all of the results of the hydraulic studies, including the detailed NEB IR No. 3.051c Prior to Constructon Complete As already noted, transient studies completed for both Lines 1 and 2. transient analyses, into the Project design by the end of the detailed engineering and design phase in late 2016 or early 2017. The operatng limits and protectve device setngs will be based on the hydraulic studies and will be fnalized in sufcient tme to allow for applicaton during commissioning. 508 Pipeline Engineering NEB For the new Westridge Delivery Pipelines, Trans Mountain commits to deploying acoustc leak NEB IR No. 3.103g During Operatons Superseded by NEB 115 Trans Mountain confrmed its intenton to install a fber optc based real-tme detecton system detecton tools on a regular basis to ensure that no pinhole leaks are present. Conditon along Line 2 and the new Westridge Delivery Lines in a report fled under Conditon 115(a) on August 29, 2018 (Filing ID C01376). 545 Pipeline Engineering Eric Bickle Trans Mountain will route the proposed pipeline along the western border of Redwoods Golf course Bickle E IR No. Prior to Constructon Complete in such a way that will not result in removal of trees that bufer the Walnut Grove residents from the 1.1.1j; Detailed golf course and in such a way that the 30m "safety zone" identfed in s. 112 of the Natonal Energy Route Hearing, board Act would not afect the residental propertes bordering Redwoods Golf Course. Reply Evidence (para 78) 546 Pipeline Engineering Environment Canada Engineering Critcal Assessment (ECA) based faw acceptance criteria will be made available to GoC EC IR No. 2.126 Prior to Constructon Superseded by NEB 111 Natural Resources Canada when available. Conditon 547 Pipeline Engineering Natural Resources Canada Trans Mountain to provide Natural Resources Canada (NRCan) a copy of TMEP Coatng Specifcatons GoC NRCan IR No. Prior to Constructon Complete FBE Plant Applied Coatng Specifcaton fled on November 12, 2015 in response to an NRCan Reply by 30 June 2015. 2.130.2. Evidence Informaton Request (Filing ID A93915, A4V3V8 and A4V3V9). 558 Pipeline Engineering Art Jackson O/A Alpine Art For the Project, Trans Mountain will meet or exceed both the minimum cover requirement specifed Alpine Art IR No. 2.2 Prior to Constructon Complete in CSA Z662 and apply the province of Britsh Columbia’s more conservatve one in two hundred year designated food mandate to all of the proposed watercourse crossings. 560 Pipeline Engineering City of Burnaby, NEB Trans Mountain will complete geotechnical site investgatons at sites with “high” and “moderate” City Burnaby IR No. Prior to Constructon Superseded by NEB 68 Liquefcaton Potental Report fled under Conditon 68 on May 15, 2017 (Filing ID A83593). liquefacton potental in 2015 and 2016. The investgatons will be staged: higher-priority sites will be 2(d).2.d Conditon targeted frst, followed by lower-priority sites if warranted by the results at higher-priority sites. 561 Pipeline Engineering Squamish Naton Trans Mountain will evaluate the magnitude of the expected imposed tensile and compressive Squamish Naton IR Prior to Constructon Complete strains on the pipe due to lateral spreading and other Geohazard along the pipeline . No. 2(d).13 (a).a

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563 Pipeline Engineering BC Nature and Nature Trans Mountain afrms its commitment to avoid the use of Colony Farm’s land to the maximum BC Nature Nature Prior to Constructon Complete Canada extent practcal. Cda IR No. 2.41d.1 564 Pipeline Engineering Burnaby Residents Liquefacton and lateral spreading analysis and geotechnical report for sites with “very high” BROKE IR No. 2.1b Prior to Constructon Superseded by NEB 68 Associated report fled on May 15, 2017 under Conditon 68 (A83593). Opposing Kinder Morgan liquefacton potental have been underway and will be completed and Trans Mountain will seek Conditon Expansion - BROKE leave to fle with the NEB by March 2015 565 Pipeline Engineering Burnaby Residents Site specifc subsurface investgatons for “high” and “moderate” liquefacton potental sites along BROKE IR No. 2.1b Prior to Constructon Superseded by NEB 68 Liquefacton Potental Report fled under Conditon 68 on May 15, 2015 (Filing ID A83593). Report Opposing Kinder Morgan the corridor will be performed in a phased approach on select sites startng spring/summer 2015, Conditon informed by the investgatons that were the subject of this commitment. Expansion - BROKE and will be based on fndings from the investgaton of the “very high” liquefacton potental sites and the potental for impact to the pipeline. 566 Pipeline Engineering Burnaby Residents If a specifc fault poses an unacceptable risk to the project, Trans Mountain will develop a fault- BROKE IR No. 2.1e Prior to Constructon Superseded by NEB 69 Fault Studies Report fled under Conditon 69 on May 15, 2015 (Filing ID A83584). The probability of Opposing Kinder Morgan specifc crossing design to mitgate risk to an acceptable level. Conditon encountering an actve fault along the Project route was determined to be low. Expansion - BROKE 568 Pipeline Engineering Burnaby Residents A study of the potental actvity of faults crossing the proposed route in the Lower Mainland and BROKE IR No. 2.5c Prior to Constructon Superseded by NEB 69 Fault Studies Report fled under Conditon 69 on May 15, 2017 (Filing ID A83584). Opposing Kinder Morgan Fraser Valley has been commissioned by Trans Mountain, and is currently being undertaken by Drs. Conditon Expansion - BROKE John Clague and Doug Stead of the Department of Earth Sciences at Simon Fraser University and is expected to be complete by the end of Q1 2015. 570 Pipeline Engineering Stz’uminus First Naton Trans Mountain tested sites in areas adjacent to the Fraser River in May 2015. Trans Mountain is Stzuminus FN IR No. Prior to Constructon Complete commited to assessing and using the results of the site-specifc testng to refne the estmates for 2(d).06.b the frequency of loss of containment and update the project-wide risk assessment. 575 Pipeline Engineering Stz’uminus First Naton Trans Mountain will undertake feld studies in 2015 to include a determinaton of whether faults and Stzuminus FN IR No. Prior to Constructon Complete Fault Studies Report fled under Conditon 69 on May 15, 2017 (Filing ID A883584). lineaments are pre-Holocene. 2(d).18.a 576 Pipeline Engineering City of Abbotsford Trans Mountain will consult with the BC Inspector of Dikes specifc to the Sumas Canal crossing City of Abbotsford IR Prior to Constructon Superseded by NEB 49 Commitment addressed by Conditon 49 (Technical Working Group Meetngs) Most recent Report methodology upon completon of the current investgatve study. Trans Mountain plans to undertake No. 2.2.06 Conditon Update No. 8 fled on April 13, 2021 (Filing ID A7S5K7). soil investgatons at Sumas Lake Canal as part of Detailed Engineering initatng in 2015 and will share the results of the soil investgatons with the City of Abbotsford. 577 Pipeline Engineering Upper Nicola Band Trans Mountain will re-evaluated the need for supplemental LiDAR within Upper Nicola/Syilx Upper Nicola Band Prior to Constructon Complete territory afer supplemental desktop studies and the feld reconnaissance portons of the IR No. 2d.1v investgaton are completed in 2015. 582 Pipeline Engineering City of Abbotsford Trans Mountain is commited to trenchless installaton methods across paved road crossings to City of Abbotsford IR Prior to Constructon Superseded by NEB 14, 49 minimize Project impacts to the City of Abbotsford infrastructure and to the travelling public. Road No. 2.2.10d Conditon crossing designs and methodology will be reviewed with the City of Abbotsford and fnalized in advance of constructon. 584 Pipeline Engineering Upper Nicola Band Trans Mountain will complete a specifc assessment of fault zones proximal to where HDD drilling is Upper Nicola Band Prior to Constructon Superseded by NEB 67 HDD Feasibility Report and Geotechnical HDD Feasibility Assessment for the Coldwater River 4 scheduled at the Coldwater River 4 site and when geotechnical drilling planned for summer 2015 IR No. 2(c).02.a Conditon Crossing fled under Conditon 67 on June 1, 2017 (Filing ID A84152, Appendix B). Borehole data (upon receiving OGC permits) is conducted. analysis included identfcaton of any bedrock fault zones. 585 Pipeline Engineering Upper Nicola Band Trans Mountain will collect observatons of alteraton minerals specifc to the Coldwater River 4 site Upper Nicola Band Prior to Constructon Superseded by NEB 67 HDD Feasibility and Geotechnical Reports for Coldwater River 4 crossing fled under Conditon 67 on when geotechnical drilling is completed at that site in summer 2015. IR No. 2(c).02.b Conditon June 1, 2017 (Filing ID A84152). Fault zones and alteraton minerals covered in borehole data (e.g. A84152-3 at PDF Pages 17, 18, and 32 and A84152-4 at PDF page 35). 586 Pipeline Engineering Upper Nicola Band Trans Mountain will prepare and fle with the NEB a summary report of the geotechnical Upper Nicola Band Prior to Constructon Superseded by NEB 67 Feasibility Report and Geotechnical HDD Feasibility Assessment for Coldwater River 4 Crossing fled investgaton and any reassessment of the horizontal directonal drill (HDD) feasibility associated IR No. 2(c).02. w Conditon under Conditon 67 on June 1, 2017 (Filing ID A84152, Appendix B). access to the site for Coldwater River 4 crossing. 590 Pipeline Engineering City of Abbotsford Trans Mountain will commit to evaluate the feasibility of installing an additonal valve in the vicinity City of Abbotsford IR During Operatons Superseded by NEB 17 The Line 2 Valve Locatons Report was fled under Conditon 17 on March 1, 2017 (Filing A81943). As of KP 1123. No. 2.4.17f Conditon indicated in that report, several mainline valves will be installed through this general area, as follows: 2K1112, 2K1115, 2K1120, 2K1127, and 2K1135. These placements have been optmized based on a rigorous technical analysis using an iteratve approach. Owing to chainage adjustments made since the tme of this commitment, KP1123 now corresponds to KP1126. 591 Pipeline Engineering City of Abbotsford Trans Mountain ommits to performing further assessments to see if outlow volume can be City of Abbotsford IR During Operatons Superseded by NEB 17 The Line 2 Valve Locatons Report was fled under Conditon 17 on March 1, 2017 (Filing A81943). As optmized in the vicinity of KP 1117, and further in this locaton by means of adjustng valve types, No. 2.4.17g Conditon indicated in that report, several mainline valves will be installed through this general area, as numbers or locatons. Trans Mountain has revisited the valve confguraton in the vicinity of KP 1123, follows: 2K1112, 2K1115, 2K1120, 2K1127, and 2K1135. These placements have been optmized and commits to evaluatng the feasibility of installing an additonal valve at this locaton. based on a rigorous technical analysis using an iteratve approach. Owing to chainage adjustments made since the tme of this commitment, KP1123 now corresponds to KP1126. 594 Pipeline Engineering City of Abbotsford City representatves have informed Trans Mountain that the crossing of Sumas Mountain Road is City of Abbotsford IR Prior to Constructon Superseded by NEB 14, 49 Commitment addressed by Conditon 49 (Technical Working Group Meetngs) Most recent Report located on solid rock, and that a trenchless crossing may not be feasible. If that is the case, Trans No. 2.2.10d Conditon Update No. 8 fled on April 13, 2021 (Filing ID A7S5K7). Mountain will work with the City to fnalize the crossing design, methodology, and constructon scheduling to minimize impact to the general public. 604 Pipeline Engineering Upper Nicola Band Trans Mountain will ensure that all locatons in the Upper Nicola Area where horizontal directonal Upper Nicola Band Prior to Constructon Complete HDD feasibility assessments completed for the Coldwater 3, Coldwater 4, and Nicola River drilling (HDDs) are planned, detailed feld investgatons will be carried out to ensure the HDD is IR No. 2(c).03.a trenchless crossings. Reference Filing IDs A67192 (B324-8, B324-9, B324-10, B324-22, B324-23) and located appropriately. A84152 (A84162-3, Appendix B). 607 Pipeline Engineering NEB Trans Mountain will undertake a reassessment of potental outlow volumes using the increased NEB IR No. 4 17b.2 During Operatons Superseded by NEB 18 Outlow analysis contained in Line 1 Valve Locaton and Upgrade flings made under Conditon 18 in average throughput volumes expected on Line 1 post expansion. Conditon April 2017 (Filing IDs A82430, A82432, A82434, A82708, and A82710).

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627 Pipeline Engineering City of Burnaby Trans Mountain commits to complying with the City of Burnaby’s mapping request should spatal City Burnaby IR No. Project Lifecycle In Progress data be provided to Trans Mountain from the City of Burnaby. 2.108 628 Pipeline Engineering City of Burnaby Trans Mountain commits to using contnuous heavy wall pipe for the delivery pipelines in excess of City Burnaby IR No. Prior to Constructon Complete Heavy wall pipe being used per alignment sheets. the minimum requirements of CSA Z662-11. 2.112 629 Pipeline Engineering City of Burnaby, NEB The risk-based approach allows geohazards to be prioritzed, managed, and mitgated in the absence NEB IR No. 4 Prior to Constructon Superseded by NEB 15, 51, 66, 68, 70 Conditons 15, 51, 66, 68, and 77 all bear on the aspect of geohazard management and provide the of mandatory design guidelines or standards. However, where such guidelines or standards are 51b;NEB Route Conditon appropriate context for geohazard identfcaton, assessment, and response acton. available, Trans Mountain will adopt the more conservatve of the results of the risk-based approach HearingTMEP and those guidelines or standards. Evidence Seg 7 Burnaby 631 Pipeline Engineering NEB Trans Mountain will meet or exceed both the minimum cover requirement specifed by CSA Z662 NEB IR No. 4 51b During Constructon Superseded by NEB 65 Hydrology Report for Notable Watercourse Crossings fled under Conditon 65 on May 19, 2017 and apply the Province of Britsh Columbia’s more conservatve one in two hundred year designated Conditon (Filing IDs A83733 and A83735). Use of 200-year food design basis confrmed in Secton 3.2.3 (Filing food mandate for all river crossings. ID A83733, Atachment). Watercourse crossing drawings fled under Conditon 43 show that minimum depth-of-cover requirement being met (e.g. Filing ID A82369, Appendix E. 632 Pipeline Engineering NEB During detailed design Trans Mountain will carry out stress and strain based seismic assessments of NEB IR No. 4 53 Prior to Constructon Superseded by NEB 70 Commitment addressed by Conditon 70: Strain Based Design and specifcally IR 34.3 reference iv: the pipeline at critcal locatons including the Burnaby Mountain crossing. Conditon "Burnaby Tunnel Pipeline Stress Analysis Report” Filing ID: A92422-3). CER approved Conditon 70 for all phases on August 16, 2018 (ID: A93587). 637 Pipeline Engineering NEB Trans Mountain will implement the type of engineered soluton it has demonstrated in NEB IR No. NEB IR No. 4 56a Prior to Constructon Superseded by NEB 50 Addressed through the AC Interference Mitgaton flings made under Conditon 50 (Filing IDs 3.53a (Filing ID A4H1V2) to mitgate the induced voltages resultng from power line steady state and Conditon A83056, A92906, and A94015). transient conditons once it completes the (GPR) study at the end of 2015. 644 Pipeline Engineering NEB As part of conditon compliance, Trans Mountain will provide the NEB with the results of Electrical NEB IR No. 4 56b Prior to Constructon Complete Addressed through the flings made under Conditon 50, including principally the High Voltage AC Interference Analysis for pipeline segments that are less than 10m from BC Hydro power lines and Interference Report fled on May 1, 2017 (Filing ID A83056). the list of Pipeline Segments where mitgatons in response to NEB IR No. 4.56a have been applied. 645 Pipeline Engineering The City of Edmonton Trans Mountain will, to the extent practcable, plan the constructon to minimize interference with City of Edmonton IR Prior to Constructon No Longer The City of Edmonton Whitemud Drive expansion project was deferred from the tme frame which constructon actvites associated with the expansion of Whitemud Drive. No. 2.2.1d Applicable had been previously contemplated. The TMEP work through this area was therefore able to be carried out without any form of tming confict. 685 Pipeline Engineering Mets Naton of Alberta A hydrostatc test profle will be developed for each test secton as part of the fnal hydrostatc test Gunn Méts Local 55 During Constructon Superseded by NEB 112 Hydrostatc test elevaton profles required to be produced under Secton 13.0 of the Trans Gunn Mets Local 55 plan. IR No. 2.01 Conditon Mountain Hydrostatc Test Procedure as fled under Conditon 112 on July 15, 2019 (Filing ID C00484, A6W0E6 at PDF Page 25). Elevaton profles are also required to be included in the eventual leave to open applicatons per Guide T of the CER's Filing Manual. 701 Pipeline Engineering City of Surrey Trans Mountain is commited to discussing the proposed crossing designs with the City of Surrey for City of Surrey IR No. Prior to Constructon Superseded by NEB 14, 49 incorporaton of feedback into Detailed Engineering and Design. 2.1.2.a Conditon 704 Pipeline Engineering Dorothy Doherty Trans Mountain’s Burnaby Mountain tunnel design will incorporate design features and operatng Doherty D IR No. Prior to Constructon Superseded by NEB 26 Commitment addressed by Conditon 26 b) viii) - Burnaby Mountain Tunnel Precautonary Design procedures that recognize the unique nature of the installaton and the lack of accessibility for 3.103g Conditon IDs: A81936; A87951; A88930; A89806; A89810; A89989; A90542; A92235; A92422; C04607; future maintenance and repair of the sectons of the Westridge delivery lines that are encased in C05112; C06744; C07584; C07936. NOTE: Conditon fling not yet approved by CER. concrete within the tunnel. 721 Pipeline Engineering Township of Langley Trans Mountain intends to consult with the Township of Langley regarding the Township’s design Langley IR No. 2.16.a Prior to Constructon Superseded by NEB 14, 49 criteria, and constructon requirements and specifcatons as part of the Company’s eforts to Conditon minimize constructon damage. 759 Pipeline Engineering Katzie First Naton Trans Mountain is commited to constructng the new pipeline (Line 2) in a manner that prevents Katzie FN IR No. 2 During Constructon Superseded by NEB 135 Commitment will be addressed through the report to be fled under Conditon 135. column separaton. 2.13a Conditon 761 Pipeline Engineering Province of Britsh Columbia Trans Mountain will develop a management plan for terrain stability to be implemented during Province BC IR No. Project Lifecycle Superseded by NEB 66 Risk Management Plan for Geohazards fled under Conditon 66 on May 15, 2017 with an addendum constructon and to contnue through operaton once constructon is completed. 2.02c Conditon following on June 16, 2017 (Filing IDs A83579 and A84457). 762 Pipeline Engineering Province of Britsh Columbia Trans Mountain will carry out Terrain Stability Assessment (TSA) for selected Class III polygons where Province BC IR No. Prior to Constructon Superseded by NEB 66 desktop study suggests that TSAs are warranted. 2.02d Conditon 764 Pipeline Engineering Province of Britsh Columbia Trans Mountain will assign consequence scores to all but low vulnerability aquifers that are Province BC IR No. Prior to Constructon Superseded by NEB 15, 16, 17 Pipeline Risk Assessment for Line 2 fled under Conditon 15 on March 1. 2017 (Filing ID A81928). commensurate with aquifer High Consequence Areas (HCAs). 2.08a Conditon Scoring informaton included for Aquifer HCAs. Valve Locaton Reports fled under Conditons 17 and 18 also considered HCA Aquifer Areas. 767 Pipeline Engineering Province of Britsh Columbia Trans Mountain commits to evaluate available technologies as they develop with a goal for Province BC IR No. During Operatons Superseded by NEB 115 Addressed through Conditon 115. Filing made under paragraph (a) made on August 29, 2019 (Filing contnually improving leak detecton including non-Computatonal Pipeline Monitoring (CPM) based 2.16e Conditon ID C01376), with the fling under paragraph (b) to follow. systems for the Trans Mountain pipeline system and will implement technologies that we determine to be viable and efectve for our operatons. 785 Pipeline Engineering Province of Britsh Columbia Trans Mountain commits to implementng a Risk-Based Design for TMEP. This will include urban Province BC IR No. Prior to Constructon Superseded by NEB 15 Addressed through the Pipeline Risk Assessment fled under Conditon 15 on March 1, 2017 (Filing areas, agricultural lands, High Consequence Areas (HCAs) that include high Environmental 2.13c Conditon ID A81928). sensitvites, and for seismically prone areas where slope instability may be an issue. 786 Pipeline Engineering Province of Britsh Columbia Trans Mountain commits to use heavy wall pipe at all major and most minor watercourse crossings, Province BC IR No. Prior to Constructon Complete road crossings, and pipeline facilites when not required by CSA Z662 for LVP pipelines. 2.13c 787 Pipeline Engineering Province of Britsh Columbia Trans Mountain commits to use Cat II pipe, over and above industry standards, for all belowground Province BC IR No. Prior to Constructon Superseded by NEB 111 Line 2 (TMEP) piping, and to develop equivalent and compatble welding procedures with proven 2.13c Conditon notch toughness, even though Cat II pipe and proven notch toughness is not required for LVP pipelines.

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788 Pipeline Engineering Province of Britsh Columbia Trans Mountain commits to use Strain-Based Design and Engineering Critcal Assessment (ECA) for Province BC IR No. During Constructon Superseded by NEB 70 Addressed by the Strain Based Design Report that was fled and accepted under Conditon 70 large soil displacement loadings and muskeg areas when required. 2.13c Conditon (reference Filing IDs A84139 and A93587). 789 Pipeline Engineering Province of Britsh Columbia Trans Mountain is commited to using a two (2) stage screening and review process to determine the Province BC IR No. Prior to Constructon Complete most suitable crossing methodology for each watercourse based upon fsh and fsh habitat 2.13c sensitvity, engineering, constructability, environmental and a number of other signifcant factors. 790 Pipeline Engineering Province of Britsh Columbia A commitment to update and implement Trans Mountain Natural Hazard Management Program for Province BC IR No. During Constructon Superseded by NEB 147 Trans Mountain will make the requisite fling under Conditon 147 regarding Natural Hazard Geohazard along the Line 2 (TMEP) pipeline. 2.13c Conditon Assessment within one year afer commencing operatons. 791 Pipeline Engineering Province of Britsh Columbia Trans Mountain commits to inspect 100% of all producton welds when not required by CSA Z662 Province BC IR No. During Constructon Superseded by NEB 111 The Joining Program documents fled under Conditon 111 specify that all welds are to be non- (Clause 7.10.3.1) for LVP pipelines. 2.13c Conditon destructvely examined (e.g. Filing ID C00700, A6W3U6, Secton 12.2 at PDF Page 13). This is consistent with the requirements of Secton 17 of the Onshore Pipeline Regulatons. 797 Pipeline Engineering Upper Nicola Band Trans Mountain has commited to conduct in-line inspecton and repair programs and will subject Upper Nicola Band During Constructon Superseded by NEB 112, 113 Hydrostatc testng protocols established in flings made under Conditons 112 and 113. the pipeline to a pressure test in accordance with CSA Z662-11. These actvites will ensure that the IR No. 2.09j Conditon Specifcatons require that piping be tested to at least 125% of MOP. In-line inspecton and repair pipeline has a minimum safety factor of 1.25 relatve to the licensed maximum operatng pressure protocols established under the company's pipeline integrity management program. (MOP). 799 Pipeline Engineering Upper Nicola Band As part of 2015 geotechnical work, additonal feld investgatons will be undertaken to refne the Upper Nicola Band Prior to Constructon Superseded by NEB 15, 51, 65, 66, 68, Geohazard management addressed through multple conditons as listed. Additonal feld assessment of all geohazards identfed in the report. IR No. 2.10e Conditon 69 investgatons underpinned those submissions under Conditons 16 and 66 with a feld change mechanism also established under Conditon 51. 801 Pipeline Engineering Upper Nicola Band Further sampling for Acid Rock Drainage / Metal Leaching (ARD/ML) characterizaton and delineaton Upper Nicola Band During Constructon Superseded by NEB 72 Metal Leaching and Acid Rock Drainage Management Plan provided as Secton 4.1 of the will be completed prior to constructon This additonal work will focus on geologic units with “High” IR No. 2.14 Conditon Environmental Protecton Plan fled under Conditon 72 on June 1, 2017 (Filing ID A84106, A5Q7J9). and “Moderate” ARD/ML potental that were not previously sampled and areas where 2013 This plan sets out protocols for the identfcaton and characterizaton of areas of potental acid rock investgaton results indicated the presence of PAG. drainage within the Project footprint. 802 Pipeline Engineering Upper Nicola Band An ARD Mitgaton Toolbox will be developed for use during constructon. The ARD Mitgaton Upper Nicola Band Prior to Constructon Superseded by NEB 51, 72 Toolbox will summarize constructon management practces and ARD/ML mitgaton methods for IR No. 2.15e Conditon pipeline constructon. 805 Pipeline Engineering Upper Nicola Band Trans Mountain commits to working with Upper Nicola Band on further sampling for ARD Upper Nicola Band During Constructon Superseded by NEB 72 Metal Leaching and Acid Rock Drainage Management Plan provided as Secton 4.1 of the characterizaton and delineaton to be completed as part of the 2015 ARD work plan. IR No. 2.21 Conditon Environmental Protecton Plan fled under Conditon 72 on June 1, 2017 (Filing ID A84106, A5Q7J9). As addressed in Secton 3.3, the Upper Nicola Band declined the ofer to partcipate in the feld work. 810 Pipeline Engineering Upper Nicola Band Trans Mountain will review the fndings including locaton and severity of Geohazard assessed with a Upper Nicola Band Prior to Constructon Superseded by NEB 16 Addressed through the Quanttatve Geohazard Frequency Assessment (Post Mitgaton) Report that FLOC value greater than 10-5 located in Upper Nicola/Sylix territory. Trans Mountain will re-assess IR No. 2.81 and 2.84 Conditon was fled under Conditon 16 on March 1, 2017 (Filing ID A81931). the FLOC values based on the site specifc feld assessments and submit in a report prior to (pages 317 and 325) constructon. 840 Pipeline Engineering Andrew Weaver Trans Mountain will fle the Lower Mainland and Fraser Valley fault study in Q1 2015 as part of its Weaver A IR No. Prior to Constructon Superseded by NEB 69 Fault studies Report fled under Conditon 69 on May 15, 2015 (Filing ID A83584). previous commitment to fle a seismic assessment for the pipeline corridor by March 31, 2015. 2.11 Conditon 847 Pipeline Engineering Strata NW 313 Trans Mountain is commited to working with BC Hydro to fnd mutually agreeable engineering Strata NW313 IR No. Prior to Constructon Complete solutons in order to safely route the pipeline within the 30 m zone. 2.04c 862 Pipeline Engineering Squamish Naton Site specifc subsurface investgatons for “high” and “moderate” liquefacton potental sites along Squamish Naton IR Prior to Constructon Superseded by NEB 68 Liquefcaton Potental Report fled under Conditon 68 on May 15, 2017 (Filing ID A83593). the corridor will be performed in a phased approach on select sites startng spring/summer 2015, No. 2.12.c Conditon and will be based on fndings from the investgaton of the “very high” liquefacton potental sites and the potental for impact to the pipeline. 905 Pipeline Engineering City of Burnaby Trans Mountain commits to removing workspace in the vicinity of the Habitat for Humanity homes. NEB Route Hearing Prior to Constructon Complete Transcript Seg 7 Vol 3 para 1993 927 Pipeline Engineering Landowner - David John Trans Mountain commits to undertaking a vibraton management and monitoring program related to NEB Route Hearing , Project Lifecycle Complete Filing ID C13138, CER decision, Determinaton of Compliance with commitment 927, Vibraton Huntley, NEB the tunnel boring machine within the Westridge community, and providing the monitoring plan to Transcript Seg 7 Vol Monitoring Plan, Phase 39, Burnaby Tunnel. the NEB prior to commencement of boring actvites. The program will include a review the Ontario 5 , para Ministry of Environment vibraton-related regulatons, and the BC WorkSafe and Health Canada 3400,3523,3525NEB guidelines, and adopt the more stringent of those guidelines; include a descripton of the complaint Route Hearing management system; include an assessment of baseline vibraton levels; make use of geophones Decision Seg 7 and microphones; include David John Huntley’s residence within the monitoring area; and identfy Huntley Sec 7 additonal mitgaton measures Trans Mountain can implement if vibraton efects are experienced. 934 Pipeline Engineering Landowner - David John Trans Mountain commits to making the vibraton and noise management / monitoring programs NEB Route Hearing During Constructon In Progress Proof of completon will be the fnal public notce issued to stakeholders. Huntley, NEB part of the constructon notfcaton program. TranscriptSeg 7 Vol 5 para 3506,3524NEB Route Hearing DecisionSeg 7 Huntley Sec 7 935 Pipeline Engineering Landowner - David John Trans Mountain commits to notfying the NEB of any changes that are required to its currently fled NEB Route Hearing Project Lifecycle Complete Confrmaton that review was completed and no updates are required. Huntley, NEB or outstanding conditon flings as a result of this proceeding (Route Hearing - Segment 7 Burnaby Decision Seg 7 Tunnel). Huntley Sec 7 1109 Pipeline Engineering Township of Langley Trans Mountain will commit to reinstatng pavement cuts to the Township’s specifcaton. Langley IR No. 2.19.a During Constructon Scoping

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1136 Pipeline Engineering City of Burnaby Installaton of monitoring (slope inclinometers and piezometers) as part of the geotechnical drilling City Burnaby IR No. Prior to Constructon Complete Piezometers were installed but slope inclinometers could not be placed during Burnaby Mountain investgaton for the trenchless constructon alternatve through Burnaby Mountain. 1.33.11j drilling. Not feasible to return to Burnaby Mountain to install inclinometers. BGC Burnaby Mountain Tunnel Phase I Site Investgaton Report (BGC 2015a). 1239 Pipeline Engineering NEB Trans Mountain commits to fling a Geotechnical and HDD feasibility study for the Thompson River 7 NEB Cond IR No. Prior to Constructon Complete Associated informaton fled on March 29, 2018 (Filing ID A90975). crossing by the end of Q1 2018. 67.1 1286 Pipeline Engineering NEB Trans Mountain commits to fling Geotechnical and HDD feasibility reports for the following NEB Cond IR No. Prior to Constructon Complete Geotechnical and HDD Feasibility Reports fled on June 1, 2017 for Blackmud Creek, Whitemud crossings: Blackmud Creek; Whitemud Creek; Hardisty Creek; Coldwater River 1; Coldwater River 3; 67.1 Creek, and Hardisty Creek per Conditon 67 ( Filing ID A84152). The Coldwater 1, Coldwater 3, and and Sumas River, in Q2 2018. Sumas River crossings are all now direct pipe crossings with HDD no longer contemplated. 1310 Pipeline Engineering Squamish Naton Trans Mountain will commit to deploying acoustc leak detecton tools on a regular basis to ensure Squamish Naton IR During Operatons Superseded by NEB 115 Trans Mountain confrmed its intenton to install a fber optc based real-tme detecton system that no pinhole leaks are present as a further level of precauton. No. 2.12.h Conditon along Line 2 and the new delivery lines in a report fled under Conditon 115(a) on August 29, 2018 (Filing ID C01376). 1405 Pipeline Engineering NEB Trans Mountain commits to fling a determinaton in Q2 2018, as to whether previously fled NEB Cond IR No. Prior to Constructon Complete Addressed through HDD-related submissions made on May 28, 2017 and June 29, 2018 (Filing IDs geotechnical and HDD feasibility reports will be updated for the following crossings: Fraser River; 67.1 A92138 and A92789). Salmon River; South Fraser Perimeter Road East (Center Creek); Fraser Heights (unnamed creek); and Raf River. 1409 Pipeline Engineering NEB Trans Mountain commits to fling the Engineering Alignment Sheets with the Board, as and when it NEB Cond IR No. Prior to Constructon Complete Engineering Alignment Sheets fled as part of spread packages under Conditon 104. Updated becomes available in August 2018 or thereafer, and prior to commencing constructon in Spread 5B. 76.1 Constructon Alignment Sheets specifc to Spread 5B fled on April 3, 2020 (Filing ID C05600). 1520 Pipeline Engineering City of Burnaby Trans Mountain Pipeline ULC (Trans Mountain) will commit to deploying acoustc leak detecton tools City Burnaby IR No. During Operatons Superseded by NEB 115 Trans Mountain confrmed its intenton to install a fber optc based real-tme detecton system on a regular basis in the Westridge Delivery lines to ensure that no pinhole leaks are present. 2.007h Conditon along Line2 and the new delivery lines in a report fled under Conditon 115(a) on August 29, 2018 (Filing ID C01376). 1591 Pipeline Engineering NEB Trans Mountain commits to fling the Engineering Alignment Sheets with the Board, as and when it NEB Cond IR No. Prior to Constructon In Progress Spread packages including constructon alignments sheets being fled prior to the start of becomes available in August 2018 or thereafer, and prior to commencing constructon in Spread 6. 76.1 constructon for any partcular spread (e.g., see Filing ID C05600 for Spread 5B Update Package). Spread 6 package remains pending. 1626 Pipeline Engineering Sto:lo Collectve Trans Mountain will provide updated maps to Sto:lo representatves to illustrate existng and new Sto:lo Collectve Prior to Constructon Complete accesses required to support pipeline constructon. Recommendaton #31 1667 Pipeline Engineering NEB Trans Mountain commits to updatng operatons manuals to limit the maximum design temperature Req for Relief Line 2 Prior to Operatons Scoping Trans Mountain's response to NEB IR 36.2 explained how the Project design and operaton would be to 38⁰C, in the Line 2 pipeline operatons manuals and in the Line 2 integrity management program. Design Temp TMEP afected by this design temperature change to 38⁰C (Filing ID A85126, A5S5C6). IR No 1.2 Response 1668 Pipeline Engineering NEB Trans Mountain commits to fling revised geotechnical and feasibility reports for the South Fraser NEB Cond IR No. Prior to Constructon Superseded by NEB 67 Addressed through the submission made under Conditon 67 on June 29, 2018 (Filing ID A92789). Perimeter Road East (Centre Creek) and Salmon River watercourse crossings by the end of Q2, 2018. 77.1b, c Conditon 1670 Pipeline Engineering NEB Trans Mountain commits to fling an updated Conditon 15 compliance report with the correct Req for Relief Prior to Constructon Complete Associated update provided on March 26, 2016 (Filing ID A90803, A6C5U6, Response to NEB IR chainage reference for the Hargreaves scraper trap, by March 26, 2018. Change in Line 2 PL 62.1). Diameter TMEP Relief Request 1675 Pipeline Engineering Landowner - Cribb Trans Mountain is commited to: 1. constructng the crossing of the service road using conventonal NEB Route Hearing During Constructon Addressed by Constructon bore techniques to ensure access to the property is maintained throughout constructon; 2. TMEP Evidence Seg Constructon Line extending the road crossing to an approximate 120 metre long horizontal drill bore which would 1 & 2 Cribb List and extend to the east side of the open water pond thereby reducing impacts to the open water pond; Constructon, NEB Constructon and 3. should a horizontal drill bore not be feasible, installing an aqua dam to isolate the open water Route Hearing Alignment Sheets pond for constructon, and reconstruct it afer constructon of the new TMEP pipeline. Transcript Seg 1 & 2 Vol 4 para 2797,3052- 3057,3198, NEB Route Hearing Decision Seg 1 & 2 Cribb Constructon Sec 3 1679 Pipeline Engineering Landowner - Janet and Lyle Trans Mountain commits to 1. Implementng the routng approach shown in Appendix B of the Trans NEB Route Hearing Prior to Constructon Complete Results of commitment refected in the correspondence that Trans Mountain fled with the NEB on Russell Mountain Reply Evidence, which shows the antcipated modifcaton of the alignment, so as to TMEP Evidence Seg October 1, 2018 (Filing ID A94324). This included updated environmental and constructon permit the constructon of an access road in the locaton contemplated by Ms. and Mr. Russell; 2. 1 & 2 Janet & Lyle alignment sheets. Contnuing to engage with Ms. and Mr. Russell on resoluton of the route alignment that enables RussellNEB Route future subdivision; 3. Modifying the alignment on the lands south of the existng pipeline to address Hearing Transcript Yellowhead County's Guidelines by increasing depth of cover, changing the crossing locaton and Seg 1 & 2 Vol 1 para angle, and narrowing the right-of-way; and 4. Contnuing to work with Yellowhead County and Ms. 86,93,256- and Mr. Russell in an efort to obtain Yellowhead County's writen agreement for a variance relatve 261,264,265NEB to the new TMEP pipeline and the Russells' planned future development. Route Hearing Decision Seg 1 & 2 Janet & Lyle Russell Sec 2.3

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1696 Pipeline Engineering City of Chilliwack, NEB, Trans Mountain commits to installing an additonal mainline isolaton valve in the nearest logical Route Variance Prior to Constructon Complete Line 2 Valve Locatons Report fled under Conditon 17 on March 1, 2017 (Filing ID A81943). Waterwealth Project proximity with power and communicatons, at or before the eastern start of Silverthorne Road, Chilliwack BC Hydro Automated mainline block valve planned to be installed at KP 1094.160 (Valve Identfer 2K1094, see within the Chilliwack BC Hydro Route Realignment. Applicaton A5J2A5 at PDF Page 13). pg10Route Variance Chilliwack BC Hydro TMEP Response dated July24 2017Route Variance Chilliwack BC Hydro TMEP Response dated Aug21 2017Route Variance Chilliwack B Waterwealth IR 1.2 1697 Pipeline Engineering City of Chilliwack, NEB, Trans Mountain commits to incorporatng enhanced external leak detecton based on fbre optc Route Variance Prior to Constructon Superseded by NEB 115 The overall SCADA and leak detecton system design is required to be fled under Conditon 115. Waterwealth Project technology across the Vedder Fan Aquifer, between Kinkora Golf Course and Vedder River isolaton Chilliwack BC Hydro Conditon valves. TMEP Response dated June6 2017Route Variance Chilliwack BC Hydro TMEP Response dated July24 2017Route Variance Chilliwack BC Hydro NEB IR 2.1b)Route Variance Chilliwack BC Hydro City of Chilliwack IR 1.2.4dRoute Variance Chilliwack B Waterwealth IR 1.1 1713 Pipeline Engineering NEB Trans Mountain commits to fling the set of Engineering Alignment Sheets with the Board, as and NEB Cond IR No. Prior to Constructon Superseded by NEB 104 Engineering Alignment Sheets fled as part of spread packages under Conditon 104. Constructon when it becomes available in August 2018 or thereafer, and prior to commencing constructon in 76.1 Conditon Alignment Sheets specifc to Spread 7 fled on January 3, 2020 (Filing ID C03931). Spread 7. 1721 Pipeline Engineering NEB Trans Mountain commits to installing the new pipeline in the area of the Chilliwack BC Hydro Route Route Variance Prior to Constructon Complete Alignment sheets show minimum depth of cover of 1.2 meters through this overall area, with Realignment, to a depth of between 1.2 m and 2.5 m, depending on such factors as road and utlity Chilliwack BC Hydro deeper burial specifed as required for certain localized areas. infrastructure crossings, and agricultural areas where deep tllage is possible. NEB IR 1.3 Route Variance Chilliwack BC Hydro TMEP Response dated July 24 2017, Route Variance Chilliwack BC Hydro NEB IR 2.1b, Route Variance Chilliwack BC Hydro NEB IR 5.4, Route Variance Chilliwack BC Hydro Transcript Vol2 para1844 1724 Pipeline Engineering City of Chilliwack Trans Mountain commits to having a remotely operated block valve upstream of the Vedder River Route Variance Prior to Constructon Complete Planned installaton of these two valves on either side of Vedder River confrmed in the Line 2 Valve watercourse crossing and a check valve downstream, to limit the potental spill volume in the river in Chilliwack BC Hydro Locatons Report fled March 1, 2017 (Filing ID A81943). See entries for Valves 2K1099 and 2K100 the very low likelihood event of a leak or rupture. TMEP Response (A81943-4, PDF page 13). dated Aug21 2017Route Variance Chilliwack BC Hydro Transcript Vol1 para125 1725 Pipeline Engineering NEB Trans Mountain commits to installing marker tape just above the buried pipeline, in the area Route Variance Prior to Operatons Scoping associated with the Chilliwack BC Hydro Route Realignment. Chilliwack BC Hydro NEB IR 2.1b 1727 Pipeline Engineering NEB Trans Mountain commits to the following mitgaton measures in order to protect the pipeline Route Variance Prior to Constructon Superseded by NEB 50 Addressed through the AC Interference Mitgaton flings made under Conditon 50 (Filing IDs against ground potental rise due to power system fault conditons:1) installing one 960 m run of 2/0 Chilliwack BC Hydro Conditon A83056, A92906, and A94015). copper wire connected to the pipe via DC decouplers, (1095+280 to 1096+240); and 2) installing NEB IR 5.1d grounding to decrease tower voltage rise below 175 kV (1095+240 @ 5L081). 1728 Pipeline Engineering NEB Trans Mountain commits to fling its report on the assessment of AC interference efects on TMEP Route Variance Prior to Constructon Superseded by NEB 50 Associated flings made under Conditon 50 (Filing IDs A83056, A92576, A92906, and A94105). for the Lower Mainland, with the NEB and providing a copy of that report to BC Hydro, by Feb. 2, Chilliwack BC Hydro Conditon 2018. NEB IR 5.1d

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1736 Pipeline Engineering NEB Trans Mountain commits to revising the Field Changes Manual for Geohazard Mitgaton to reference NEB Cond IR No. Prior to Constructon Superseded by NEB 51 The updated version of the Field Changes Manual for Geohazard Mitgaton was fled under the Environmental Protecton Plan (EPP) where discharge of groundwater seepage may be 13.3 Conditon Conditon 51 on April 15, 2021 (Filing ID C05736). The revisions that are the subject of this implemented as a potental mitgaton opton. commitment appear at PDF Pages 41 and 59. 1747 Pipeline Engineering City of Coquitlam Trans Mountain commits to 1. avoiding exacerbatng efects of the pipeline on surrounding NEB Route Hearing Prior to Constructon Complete Detailed engineering plans to be developed and results incorporated in the constructon alignment infrastructure, in part through selectng back fll materials to avoid diferental setlement; 2. Decision Seg 7 City sheets. Completon Timeline: 1) April 27, 2020 2) December 6th, 2018 3) October 2019 mitgatng potental diferental setlement by using a two-meter depth of cover on United of Coquitlam Sec Boulevard; 3. using a specialist engineering frm to develop detailed engineering plans that would 2.3.2 refect setlement and existng contaminaton consideratons. 1751 Pipeline Engineering Landowner - Min Guo Trans Mountain commits to 1. ensuring pipeline is designed to the appropriate standards and NEB Detailed Route Prior to Constructon Complete accepted practces for seismic consideratons in this region;2. conductng noise modelling. Hearing Transcript Volume 9 para 6079, NEB Detailed Route Hearing Decision Seg 7 Min Guo Sec 2.4 1752 Pipeline Engineering NEB Trans Mountain commits to conductng additonal detailed investgatons at Moonbeam Creek North NEB Cond IR No. During Constructon Complete Commitment addressed by CER Conditon 71, CER Filing ID C05736, Field Changes Manual for Slope earth landslide, including borehole drilling and installaton of subsurface displacement 78.1d Geohazard Mitgaton monitoring tools. 1757 Pipeline Engineering NEB Trans Mountain commits to fling the entre set of Engineering Alignment Sheets with the Board, as NEB Cond IR No. Prior to Constructon Complete Engineering Alignment Sheets fled as part of spread packages under Conditon 104. Updated spread and when it becomes available in August 2018 or thereafer, and prior to commencing constructon 76.1 packages for Spreads 1, 2, 3, and 4 fled in July 2019 (Filing IDs C00470, CA00476, CC00477, and in Spreads 1, 2, 3 and 4. C00478). 1760 Pipeline Engineering Landowner - Underhill Trans Mountain commits to 1. keeping the alignment as far from the building as possible within this NEB Route Hearing Prior to Constructon Addressed by Lands Ltd PPBoR, taking into account the setbacks associated with the power poles; 2. contnuing to engage Decision Seg 7 Constructon Line with BC Hydro to explore further optons in order to minimize the impact on Underhill; 3. if BC Hydro Underhill Lands Ltd List and responds prior to constructon, to work with Underhill and BC Hydro to atempt to relocate power Sec 3 Constructon lines and to return to the Board to amend the PPBoR if the power lines can be relocated with a route Alignment Sheets that takes advantage of the revised power line locaton. 2034 Pipeline Engineering BC Parks Vehicle and pipeline crossing methods have been selected to reduce Project-specifc efects in BC Parks boundary During Constructon In Progress consideraton of presence and use by fsh species of concern in Finn Creek. Trans Mountain will adjustment conduct the crossing using an isolated crossing method (i.e., if water is present) or open cut crossing applicaton (August (i.e., if dry or frozen to botom). Although not stated in the original applicaton, the use of a 2014) Tab A - Finn diversion channel is being considered to successfully isolate the secton of channel at the crossing Creek Provincial Park locaton. If used during a period of low fow (e.g., fall), a diversion would allow fall spawning species, such as bull trout, to contnue a migraton upstream to spawning habitat, unafected by instream constructon. 2155 Pipeline Engineering Shxw’owhámel First Naton Trans Mountain has proposed a pipeline re-alignment from Alternatve Kilometer Post (AK) 1057 to Public Land Reply Prior to Constructon Complete AK 1059, designed to avoid the pithouses and archaeological sites identfed by Shxw’ōwhámel First Evidence Naton. 2174 Pipeline Engineering NEB Trans Mountain will install permanent mitgaton measures on any porton of the pipeline that will NEB IR No. 2.075c During Constructon Superseded by NEB 50 be buried for longer than four months prior to completon of the project. Conditon 2236 Pipeline Engineering C.G.L.A.P. - Collaboratve Where deep tllage and sub-soiling is practced, Trans Mountain will install the pipeline at deeper CGLAP IR No. 1.9d During Constructon Complete Group of Landowners depth of cover than the standard 0.9 m. Based on informaton gathered to date, tllage and sub- Afected by Pipelines soiling may be as deep as 0.7 m from existng grade. In these situatons, Trans Mountain would propose that the pipeline would need a depth of cover of minimum 1.2 m measured from existng grade. 2336 Pipeline Engineering City of Abbotsford Trans Mountain is commited to minimizing its constructon footprint through City of Abbotsford City of Abbotsford IR Prior to Constructon Superseded by NEB 14, 49 Commitment addressed by Conditon 49 (Technical Working Group Meetngs) Most recent Report Parks, but cannot enter into binding agreements at this tme due to uncertainty of site conditons No. 2.2.04a Conditon Update No. 8 fled on April 13, 2021 (Filing ID A7S5K7). and the early stage of detailed engineering and design. Trans Mountain will plan to locate any temporary workspaces (e.g., laydown areas, storage areas) outside of City of Abbotsford park areas and only use what land is necessary to install the pipe safely in the trench. 2352 Pipeline Engineering Metro Vancouver As part of the detailed design process, Trans Mountain will design watercourse crossings for scour Reply Evidence Prior to Constructon Superseded by NEB 43, 65 Hydrology Report for Notable Watercourse Crossings fled under Conditon 65 on May 19, 2017 and bank stability to meet the conditons of a 1 in 200 year food event. The mitgaton will be 10.22 Watercourses Conditon (Filing IDs A83733 and A83735). Use of 200-year food design basis confrmed in Secton 3.2.3 (Filing selected on a case by case basis but will include either burying the pipe sufciently deep or to - p10-1 - line 19 ID A83733, Atachment). Watercourse crossing drawings fled under Conditon 43 show that provide other protecton such as bank stabilizaton. minimum depth-of-cover requirement being met (e.g. Filing ID A82369, Appendix E). 2360 Pipeline Engineering Upper Nicola Band In response to metal leaching from the pipeline itself, Trans Mountain will apply protecton to the Reply Evidence 11.3 During Constructon Complete Line pipe being coated with fusion bond epoxy coatng per Trans Mountain's FBE Plant Applied pipeline from corrosion and metal deterioraton by the applicaton of a fusion bond epoxy (FBE) Metal Leaching and Coatng Specifcaton (Document #TMEP-GC3105). coatng system on the outer surface of the pipeline to act as a barrier to the environment. Acid Rock Drainage - p 6 - line 18

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2361 Pipeline Engineering City of Burnaby, Landowner Trans Mountain will ensure proposed tunneling to route the pipeline expansion through Burnaby Reply Evidence During Constructon Superseded by NEB 26 b) ii) Commitment addressed by Conditon 26 b) ii) - Tunnel Portals and Permanent Road Access IDs: - Lisa Craig Mountain will be completed entrely from portals within the Burnaby and Westridge Terminal 11.4.1 Potental to Conditon A81936; A87951; A88930; A89806; A89810; A89989; A90542; A92235; A92422; C04607, Conditon facilites. Trans Mountain will seek to minimize impact to the Burnaby Mountain Conservaton Area Destabilize Burnaby 26 b) ii) was approved by the CER on March 4, 2020 ID: C05005. lands through clearing or any other constructon actvites. Mountain - p6 -line 33NEB Route Hearing Transcript Seg 7 Vol 3 para 1772 2362 Pipeline Engineering City of Burnaby, Landowner Trans Mountain will backfll the tunnel to prevent the development of a conduit for groundwater Reply Evidence During Constructon Superseded by NEB 27 Commitment addressed by Conditon 27 - Burnaby Mountain Tunnel - Backflling. IDs: A81940; - Lisa Craig fow. 11.4.1 Potental to Conditon A92235; A92422; A92546; A92717; C07584; C07936 NOTE: Conditon not yet approved by CER. Destabilize Burnaby Mountain - p6 -line 33, NEB Route Hearing TMEP Evidence Seg 7 Burnaby para 294 2368 Pipeline Engineering Yarrow Ecovillage Trans Mountain confrms that the pipeline will remain within the existng right of way and the centre Reply Evidence 13.4 Prior to Constructon Complete line of the proposed pipeline will be 6m ofset from the existng pipeline, on the southern side. Yarrow EcoVillage, Chilliwack - p2 - line 11 2376 Pipeline Engineering NEB As part of the detailed design process, Trans Mountain will design watercourse crossings for scour Reply Evidence Prior to Constructon Superseded by NEB 43, 65 Hydrology Report for Notable Watercourse Crossings fled under Conditon 65 on May 19, 2017 and bank stability to meet the conditons of a 1 in 200 year food event. The mitgaton will be 10.2.2 Watercourses Conditon (Filing IDs A83733 and A83735). Use of 200-year food design basis confrmed in Secton 3.2.3 (Filing selected on a case by case basis but will include either burying the pipe sufciently deep or to - p10-1 - line 19 ID A83733, Atachment). Watercourse crossing drawings fled under Conditon 43 (e.g. Filing ID provide other protecton such as bank stabilizaton. A82369, Appendix E). 2384 Pipeline Engineering NEB Trans Mountain will ensure the TMEP pipeline, including line pipe and heavy wall pipe (but excluding Reply Evidence 15.4 Prior to Constructon Complete facilites pipe), will be made of low carbon, high strength, low alloy, Grade 483 steel. The nominal Seismic Hazard pipe size (NPS) 42, 36, 30 pipe will be manufactured in accordance with CSA Z245.1, Steel Pipe and Mitgaton - p11 - Trans Mountain Standard MP2120 Main Line Pipe Material. Trans Mountain will ensure all mainline line 30 pipe will be manufactured using standard manufacturing procedures for longitudinal and/or helical seam (spiral) submerged arc welded pipe with controlled rolling practces utlized to improve strength, ductlity, weldability, and toughness propertes of the pipe. 2385 Pipeline Engineering Metro Vancouver In additon to working closely with Metro Vancouver through a Technical Working Group (TWG) to Reply Evidence Prior to Constructon Complete mitgate potental conficts, Trans Mountain will facilitate the necessary coordinaton between its 16.1.3 Constructon contractor and Metro Vancouver’s contractor(s) to prevent interference with work space Schedule Conficts - requirements, constructon methods and working areas. p1 - line 29 2466 Pipeline Engineering NEB Trans Mountain's eventual Project footprint will avoid the mature forest community in the Brunete Reply Evidence Prior to Constructon Complete River Conservaton Area. 37.1.2 Vegetaton - p37-2 - line 18 2503 Pipeline Engineering City of Burnaby Trans Mountain will install monitoring (slope inclinometers and piezometers) as part of the City Burnaby IR No. Prior to Constructon Complete BGC Burnaby Mountain Tunnel Phase I Site Investgaton Report (BGC 2015a). geotechnical drilling investgaton for the trenchless constructon alternatve through Burnaby 33.11j Mountain. 2554 Pipeline Engineering Fraser Valley Regional Trans Mountain commited to implement Master Municipal Constructon Documents (MMCD) This commitment Prior to Constructon Addressed by District guidelines for any engineering requirements for pipeline crossing FVRD infrastructure. was made since the Constructon Line close of intervenor’s List evidence: Email from Brendan Osorio, Lead Project Engineer, UPI, re TMEP-FVRD Meetng Follow up, sent October 2, 2015 to T. Islam and G. Daneluz, FVRD 2556 Pipeline Engineering City of Abbotsford, Fraser Trans Mountain has commited to changing the alignment of the pipeline from the west side of Technical Working Prior to Constructon Complete Valley Regional District, Redwoods Golf Course to the east side. Group Township of Langley 2565 Pipeline Engineering NEB Trans Mountain will commit to apply minimum clearance of 0.7 m in urban areas , where practcal, Applicaton Volume Prior to Constructon Complete and a precast slab will be installed between the new TMEP pipeline and the adjacent facility. A 4A s. 3.2.18 p4A-26; Typical Foreign Pipeline Crossing drawing is included in Appendix C. Applicaton Volume 4A Appendix C 2581 Pipeline Engineering City of Burnaby If the Barnet Escarpment Trail is south of the Westridge Terminal and north of the Kask Brothers site, City Burnaby IR No. During Constructon Complete the proposed revised pipeline corridor will likely undercross it in trenchless mode. Trans Mountain 1.44.01o will work with the City of Burnaby to reduce impacts, where practcal.

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2632 Pipeline Engineering NEB Trans Mountain will avoid disturbance of known gathering places during right-of-way fnalizaton, to Applicaton Volume Prior to Constructon Complete Precise routng has been addressed through the detailed route (PPBoR) process. Extensive the greatest extent practcal. 5B Table 7.2.2-4 p7- consultatons bore on the detailed route selecton and stakeholders and Indigenous communites 27 had a full opportunity to partcipate in the detailed route process. 2645 Pipeline Engineering NEB Trans Mountain will ensure rail lines will be crossed using a trenchless crossing method (e.g., bore or Applicaton Volume During Constructon Complete horizontal directonal drilling (HDD)). 5B Table 7.2.5-2 p7- 122 2651 Pipeline Engineering NEB Trans Mountain will use mitgaton at site TMEP-004, located at RK 14 to neutralize any acid that Applicaton Volume During Constructon Scoping were to be generated from the coal seams. Suggested mitgaton includes removal of the coal 5C s. 5.1 p21 fragments, or blending of the excavated material with limestone where coal fragments exist. Shake fask extracton data is not available for this site. 2814 Pipeline Engineering City of Abbotsford Trans Mountain will commit to special designs for the pipeline, in select areas for the Auguston City of Abbotsford IR Prior to Constructon In Progress development near KP 1117 to 1118 and beyond to McKee Road. No. 2.7.24 2858 Pipeline Engineering City of Abbotsford Trans Mountain is commited to use trenchless method at Mt. Lehman Rd. and through the parking City Abbotsford IR Prior to Constructon Complete A trenchless crossing with be undertaken for Mt. Lehman Rd. and the frehall parking lot. lot of the City’s Mt. Lehman frehall. If geotechnical conditons preclude use of trenchless method, No. 1.21b Trans Mountain will use constructon methods that maintain access to the frehall 24 hours per day for the City’s emergency services. Trans Mountain is commited to consult with the City of Abbotsford and its emergency services as it develop its constructon plans in this area. 2892 Pipeline Engineering City of Surrey Trans Mountain will ensure alignment of pipeline to avoid City of Surrey parkland at RK 1158.5. City Surrey IR No. Prior to Constructon Complete 1.1f 2912 Pipeline Engineering Dorothy Doherty Trans Mountain will use pipe and pipe coatng materials for the Trans Mountain Line 2 design that Doherty D IR No. During Constructon Complete Pipe and coatng materials are conforming to the Electric-Welded Steel Pipe Specifcaton (TMEP-01 exceed the minimum requirements of Canadian Standards Associaton (CSA) Standards and will 1.02g EW), FBE Plant Applied Coatng Specifcaton (TMEP-GC3105), and Two-Part Liquid Shop Applied exceed or be equivalent to the current pipeline industry practce. Coatng Specifcaton (TMEP Document GC3306). 2929 Pipeline Engineering Environment Canada In the Brunete River Conservaton Area, Trans Mountain commits that the trenchless installaton GoC IR No. 2.025.a Prior to Constructon Complete Trenchless installaton planned to be used per Drawing No. M002-XR10065. technique will be used to cross from the Sapperton Rail. 2939 Pipeline Engineering Natural Resources Canada Trans Mountain will commit to implementng weld toughness testng of electric welded pipe at the GoC NRCan IR No. Prior to Constructon Complete minus 5 degrees Celsius (-5ºC) temperature. 1.10.02 2962 Pipeline Engineering Government of Canada Trans Mountain commits that the employees employed during the summer and fall 2014 survey will GoC IR No. 2.05.3 Prior to Constructon Complete be invited to work during the 2015 survey season by the [land survey] contractor. 3101 Pipeline Engineering Regional District of Fraser- Trans Mountain commits to treat the former landfll site at RK 522 as a sensitve area during RD of Fraser-Fort During Constructon No Longer Pipeline relocated to avoid impacts to the Landfll site. Fort George constructon operatons and implement vibraton monitoring in consultaton with the Regional George IR No. 1.06b Applicable District of Fraser-Fort George. 3528 Pipeline Engineering Upper Nicola Band An Acid Rock Drainage (ARD) management plan will be developed as part of detailed engineering Upper Nicola Band Prior to Constructon Superseded by NEB 72 Metal Leaching and Acid Rock Drainage Management Plan provided as Secton 4.1 of the and design. Trans Mountain will conduct inspectons and post-constructon seepage sampling at IR No. 1.03l Conditon Environmental Protecton Plan fled under Conditon 72 on June 1, 2017 (Filing ID A84106, A5Q7J9). areas where potentally acid generatng material has been identfed or exposed during constructon. Sampling protocols included in this plan. 3533 Pipeline Engineering Township of Langley Trans Mountain will commit to reinstatng pavement cuts to the Township’s specifcaton. Langley IR No. 2.19.a During Constructon Scoping 3542 Pipeline Engineering C.G.L.A.P. - Collaboratve In areas where pipeline depth needs additonal cover to accommodate deep tllage the pipeline will CGLAP IR No. 1.5c Prior to Constructon Complete Group of Landowners be buried with soil cover over the pipe of 1.2m. Afected by Pipelines 3554 Pipeline Engineering BC Parks, NEB All provincial parks, protected areas and recreaton areas will be traversed with 11.8 mm wall BC Parks boundary Prior to Constructon Complete thickness pipe. All major watercourse crossings in parks and protected areas will be constructed adjustment using heavy wall pipe. The Clearwater River will be 19.0 mm extra heavy wall thickness pipe as the applicaton (August pipeline is proposed to be installed by a horizontal directonal drilling (HDD) method. The extra 2014) heavy wall thickness is required for large loads imposed during installaton and during the pipe pull and fnished pipeline profle in the bored hole. If the Clearwater River HDD proves to be unsuccessful then the contngency, in-stream design would be implemented with a wall thickness of 14.7mm or the 19.0 mm thick pipe planned for the HDD if the pipe had already been welded into a pipe string in preparaton for pipe pulling. 3559 Pipeline Engineering Burnaby Residents If a specifc fault poses an unacceptable risk to the project, Trans Mountain will develop a fault- BROKE IR No. 2.1e Prior to Constructon Superseded by NEB 69 Fault Studies Report fled under Conditon 69 on May 15, 2017 (Filing ID A83584, Document Opposing Kinder Morgan specifc crossing design to mitgate risk to an acceptable level. Conditon A5L7L0). The probability of encountering an actve fault along the pipeline route was determined to Expansion - BROKE be low, with no atendant mitgaton measures identfed. 3652 Pipeline Engineering The City of Edmonton Trans Mountain will use minimum 14.7 mm wall thickness pipe through Whitemud Drive area. HDD Non-Regulatory Prior to Constructon Complete Installaton completed using heavy wall pipe per commitment. will be minimum 19.0 mm WT. Commitment 3662 Pipeline Engineering Merrit Airport Authorites Trans Mountain pipeline design will need to accommodate the Merrit Airport proposed runway Non-Regulatory Prior to Constructon Complete Trans Mountain has tailored its pipeline design to accommodate the proposed runway expansion. expansion. Commitment The pipe in this expansion area will be heavy wall and buried at extra depth. Details are shown on Drawing No. M002-XH02833. 3668 Pipeline Engineering City of Abbotsford Trans Mountain commits to bore under Clayburn Rd during constructon and that any potental road Non-Regulatory Prior to Constructon Complete closures will be minimal in duraton for Clayburn Road. Commitment

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3669 Pipeline Engineering City of Chilliwack, NEB, Trans Mountain will commit to install heavy wall pipe (14.7 mm wall thickness versus 11.8mm) for Route Variance Prior to Constructon Complete Waterwealth Project the entre porton between Silverthorne Road to Watson Road. TMEP will also add a valve in the Chilliwack BC Hydro nearest logical proximity with power and communicatons, at or before the eastern start of Applicaton pg. 10 Silverthorne Road. Route Variance Chilliwack BC Hydro TMEP Response dated July 24_2017 Route Variance Chilliwack BC Hydro TMEP Response dated Aug 21 2017 Route Variance Chilliwack B Waterwealth IR 1.2 3671 Pipeline Engineering Oppenheimer Foods Trans Mountain commits to crossing the loading bays using a trenchless bore. Non-Regulatory Prior to Constructon Complete Commitment 3673 Pipeline Engineering City of Surrey, Edmonton & Trans Mountain will engineer to account for future road projects. Non-Regulatory Prior to Constructon Superseded by NEB 14, 49 Area Land Trust Commitment Conditon 3688 Pipeline Engineering City of Abbotsford Abbotsford notes that quarry sites north of the Sumas Mountain Road have a contngency fund for Non-Regulatory Prior to Constructon In Progress excavaton work below elevaton 200, to protect against risk of compromising downstream surfcial Commitment water access. TMEP commits to adhering to a similar requirement if constructon actvites risk fracturing drainage paths. 3716 Pipeline Engineering City of Merrit Trans Mountain will construct TMEP to accommodate future runway extension at Merrit Airport. Non-Regulatory Prior to Constructon Complete Matches Commitment 3662, same comment applies regarding tailored pipe design. Commitment 3727 Pipeline Engineering Sandy Hill Neighbourhood Trans Mountain will bore roadway of private residences to enable property access during Non-Regulatory During Constructon Complete Informaton Session constructon. Commitment Atendee 3731 Pipeline Engineering Sandy Hill Neighbourhood Trans Mountain will use trenchless technology for constructon on/near Clayburn Road as it is a Non-Regulatory Prior to Constructon Complete Design is for a bored crossing; Informaton Session major thoroughfare for commuters. Commitment Atendee 3965 Pipeline Engineering NEB Trans Mountain commits to designing and constructng the power line associated with the Black NEB Cond IR No. Prior to Operatons Superseded by NEB 48 Pines Pump Staton in accordance with the Canadian Standards Associaton (CSA) standards for 9.3b Conditon overhead systems (CSA C22.3). 168 Reactvaton Parks Canada Agency Trans Mountain will contnue to work with Parks Canada and BC Parks as part of the decision making GoC Parks IR No. Prior to Constructon Superseded by NEB 72 Commitment will be addressed by Conditon 72 Pipeline Environmental Protecton Plan; process for reactvaton actvites, including the identfcaton of site-specifc issues and concerns and 1.2.2 Conditon Reactvaton EPP; Volume 5 of the Environmental Plans Conditon to be fled three months prior to development of mitgaton and restoraton measures. commencing constructon. 190 Reactvaton Upper Nicola Band Prior to reactvaton, Trans Mountain will verify the integrity of the pipeline system through the use Upper Nicola Band Prior to Operatons Superseded by NEB 19 Commitment will be addressed by Conditon 19 Pipeline Reactvaton (Hinton to Hargraves; Darfeld of in-line inspecton and a hydrostatc pressure test. IR No. 1.04c Conditon to Black Pines) - Engineering Assessment and Certfcate. Conditon to be fled six months prior to commencing constructon. 199 Reactvaton NEB Afer the inital in-line inspecton (ILI ) program, Trans Mountain will mitgate the stream crossing Applicaton Volume Prior to Operatons Superseded by NEB 19 Commitment will be addressed by Conditon 19 Pipeline Reactvaton (Hinton to Hargraves; Darfeld hazards already identfed and any other hazards identfed during ongoing assessments. 4A-123. (3.6.5.2) Conditon to Black Pines) - Engineering Assessment and Certfcate. Conditon to be fled six months prior to commencing constructon. 208 Reactvaton NEB In additon to the mitgaton measures at the known priority sites, Trans Mountain will run a high Applicaton Volume Prior to Operatons Superseded by NEB 19 Commitment will be addressed by Conditon 19 Pipeline Reactvaton (Hinton to Hargraves; Darfeld resoluton geometry ILI tool prior to reactvaton of the Darfeld to Black Pines and the Hinton to 4A-122. Conditon to Black Pines) - Engineering Assessment and certfcate. Conditon to be fled six months prior to Hargreaves segments. The geometry tool data will be integrated with the data from the GEOPIG commencing constructon. inspectons completed in 2001 and 2003 to identfy pipe movements that may have been caused by slope instability, river scour, or other geological, geotechnical, or hydrologic phenomena. 220 Reactvaton NEB Trans Mountain will complete an engineering assessment for the reactvaton of two isolaton valves NEB IR No. 1.88a Prior to Constructon No Longer This commitment is no longer applicable. Project made the decision to replace all deactvated at Jasper Pump Staton by June 2016, in sufcient tme to replace the valves in the unlikely event Applicable valves. The 2 valves at Jasper Pump Staton have been removed and will be replaced following CER's that they are deemed unft for service on Line 1. approval of C 19. 241 Reactvaton NEB Prior to hydrostatc testng, Trans Mountain will complete Inline inspecton (ILIs or smart pigging) of Applicaton Volume Prior to Operatons Superseded by NEB 19 Commitment will be addressed by Conditon 19: Pipeline segment reactvaton (Hinton to the deactvated segments using a high resoluton metal loss tool, a high resoluton axial faw 4A-117. Conditon Hargreaves; Darfeld to Black Pines) - Engineering Assessment and Certfcate. Conditon to be fled detecton tool, and a high resoluton geometry tool... at least six months prior to commencing constructon. 254 Reactvaton NEB Prior to reactvatng the pipeline segments, Trans Mountain will run an axial faw detecton (AFD) Applicaton Volume Prior to Operatons Superseded by NEB 19 Commitment will be addressed by Conditon 19 Pipeline Reactvaton (Hinton to Hargraves; Darfeld inline inspecton (ILI) tool that is able to identfy axially oriented features such as corrosion grooves, 4A-119. Conditon to Black Pines) - Engineering Assessment and Certfcate. Conditon to be fled six months prior to gouges and open cracks. Once the ILI results are received, Trans Mountain will do a number of digs commencing constructon. to verify the tools’ sizing accuracy and to assess any anomalies. 506 Reactvaton NEB Trans Mountain will conduct additonal feld investgatons for 5 sites identfed on the two pipeline NEB IR No. 3.102a Prior to Operatons Superseded by NEB 19 Commitment will be addressed by Conditon 19: Pipeline segment reactvaton (Hinton to segments proposed for reactvaton as part of the Natural Hazards Management Program, Conditon Hargreaves; Darfeld to Black Pines) - Engineering Assessment and Certfcate. Conditon to be fled at least six months prior to commencing constructon.

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614 Reactvaton NEB Trans Mountain commits to completng a pre-reactvaton inspecton using the electromagnetc NEB IR No. 4.42a Prior to Operatons Superseded by NEB 19 Commitment will be addressed by Conditon 19 Pipeline Reactvaton (Hinton to Hargraves; Darfeld acoustc transducer tool (EMAT) tool. Conditon to Black Pines) - Engineering Assessment and Certfcate. Conditon to be fled six months prior to commencing constructon. 615 Reactvaton NEB Prior to reactvaton, Trans Mountain will complete the following actvites to verify that the pipeline NEB IR No. 4.43c Prior to Operatons Superseded by NEB 19 Commitment will be addressed by Conditon 19 Pipeline Reactvaton (Hinton to Hargraves; Darfeld is safe to return to service: crack inspectons of the pipeline system using the Axial Flaw Detecton Conditon to Black Pines) - Engineering Assessment and Certfcate. Conditon to be fled six months prior to (AFD) and Electro-Magnetc Acoustcal Transducer (EMAT) (refer to the response to NEB IR No. commencing constructon. 4.42a) prior to the reactvaton of the pipeline; high resoluton metal loss inspectons of the pipeline system prior to reactvaton; high resoluton geometry inspecton of the pipeline system prior to reactvaton; hydrostatc test to revalidate the currently licensed maximum operatng pressure (MOP) of the pipeline segments prior to reactvaton. 622 Reactvaton NEB Trans Mountain commits to complete excavatons of all crack-like anomalies on the Hinton to NEB IR No. 4.43 Prior to Operatons Superseded by NEB 19 Commitment will be addressed by Conditon 19 Pipeline Reactvaton (Hinton to Hargraves; Darfeld Hargreaves secton of line prior to hydrostatc testng and reactvaton. Conditon to Black Pines) - Engineering Assessment and Certfcate. Conditon to be fled six months prior to commencing constructon 625 Reactvaton NEB Trans Mountain will commit to providing an updated engineering assessment (including fatgue NEB IR No. 4.44 Prior to Operatons Superseded by NEB 19 This commitment has been overtaken by Conditon 19, which requires the fling of an engineering assessments and future inline inspecton (ILI) schedules) upon completon of the baseline work and Conditon assessment and a certfcate from an independent certfcaton body for each of the two reactvaton prior to the reactvaton pipeline segments being placed in Line 2 service. pipeline segments. 793 Reactvaton Upper Nicola Band Trans Mountain has commited to complete in-line inspectons prior to and following the return to Upper Nicola Band Prior to Operatons Superseded by NEB 19 Commitment will be addressed by Conditon 19 Pipeline Reactvaton (Hinton to Hargraves; Darfeld service of the pipeline segments as well as conductng a hydrostatc test of the deactvated sectons IR No. 2.08d Conditon to Black Pines) - Engineering Assessment and Certfcate. Conditon to be fled six months prior to (Darfeld to Black Pines and Hinton to Hargreaves). commencing constructon. 1378 Reactvaton Upper Nicola Band Prior to reactvaton, Trans Mountain will complete inspectons, excavatons, and hydrostatc testng Upper Nicola Band Prior to Operatons Superseded by NEB 19 Commitment will be addressed by Conditon 19: Pipeline segment reactvaton (HInton to to ensure the safe operatng margin of the pipeline is maintained and will provide a fnal Engineering IR No. 2.09z Conditon Hargreaves; Darfeld to Black Pines) - Engineering Assessment and Certfcate. Conditon to be fled Assessment to demonstrate that the pipeline is ft for service. at least six months prior to commencing constructon. 307 Regulatory Adams Lake Indian Band, An Environmental Compliance Plan (ECP) will be prepared prior to the start of constructon (Secton ALIB IR No. 1.6.01a, Prior to Constructon Complete The Compliance Management Plan was initally fled by Trans Mountain on March 28, 2018 under City of Burnaby 5.3 of Volume 6A). City Burnaby IR No. Conditon 72 as Volume 10 of the TMEP Environmental Plans (A90970). Trans Mountain proceeded 1.26.01a, City to fle an updated version of this plan on November 18, 2019 (C03070). Burnaby IR No. 1.26.01b 346 Regulatory NEB Environmental compliance audits will be commissioned by the Trans Mountain Legal Department Applicaton Volume During Constructon Superseded by Environmental Audit Reports; Same deliverable as Commitment ID 258, for which a response to and will be administered by Trans Mountain’s Environment, Health and Safety Department. A 6A, 3-6. Management Plan NNC#3 was fled on December 7, 2020 with forward actons identfed. number of internal compliance audits are expected over the life of the Project. 1088 Regulatory NEB Trans Mountain commits to fling the entre set of Engineering Alignment Sheets with the Board, as NEB Cond IR No. Prior to Constructon Complete Constructon alignment sheets for Spread 5A fled on April 17, 2020 (C05785). and when it becomes available in August 2018 or thereafer, and prior to commencing constructon 76.1 in Spread 5A. 1680 Regulatory NEB Trans Mountain commits to fling a revised PPBoR with the NEB, if routng changes are made as a NEB Route Hearing Prior to Constructon Complete The applicable PPBOR sheet was approved by the NEB on March 28, 2018 following a detailed route result of discussions with Yellowhead County and Ms. and Mr. Russell. Transcript Seg 1 & 2 hearing (A90959). Further correspondence followed on October 1, 2018 (A94324, A6Z8D3) and Vol 1 para 265, NEB January 20, 2020 (A7C7K2). Route Hearing Decision Seg 1 & 2 Janet & Lyle Russell Sec 2.3 1749 Regulatory Landowner - Fraser Heights Trans Mountain commits to fling the informaton regarding the change in the alignment. NEB Detailed Route Prior to Constructon Complete The subject informaton was fled by Trans Mountain on March 13 and 15, 2018 (A90559 and Community Associaton Transcript Volume 9 A90598). The NEB issued its detailed route decision in this mater on May 10, 2018 (A91883) and para 5610 followed with a specifc PPBOR approval on August 29, 2018 (A93779). 4489 Regulatory NEB Trans Mountain commits to fling with CER an Addendum to the Trafc and Access Control CER Conditon IR No. During Constructon No Longer The subject six-month interval TACMP addendum proposal has been overtaken by the directons Management Plan (TACMP) on a six-month basis The Addendum will include data lists, basic charts, 21.2 Applicable contained in CER Conditon Compliance Leter Report No. 37 dated June 9, 2020 (C06749-1). graphics, and focus on areas where the Project actvites are unfolding or expected to be commencing in the future. 4517 Regulatory NEB Trans Mountain commits to fling an update to Conditon 70 regarding weld procedure qualifcaton CER IR No. 38.3 Prior to Constructon No Longer The subject six-month interval TACMP addendum proposal has been overtaken by the directons for the High-Stain-Capacity (HSC) NP 30 pipe for the Westridge Delivery Line on June 30, 2021. Applicable contained in CER Conditon Compliance Leter Report No. 37 dated June 9, 2020 (C06749-1). 15 Security Angelika Hacket, Chris Amy Prior to constructon, Trans Mountain will develop a Security Management Program (SMP). Ninety Amy C IR No. 1.8a, Prior to Constructon Superseded by NEB 63 Commitment addressed in Filing A83588, Conditon 63, Security Management Programs. CER has days before constructon, a constructon SMP will be fled with the Natonal Energy Board (NEB) as Hacket A IR No. Conditon completed an implementaton assessment on July 15, 2017 and found the security program was in per NEB draf Conditon 37. Prior to completon of constructon and before commencing operatons 1.7a full compliance with conditon 63. Multple CER site inspectons to determine site implementaton of the new pipeline, an updated operatons SMP will be submited to the NEB. have been competed with no fndings. 454 Security NEB All constructon areas, including those within existng Trans Mountain rights-of-way, pump statons, Applicaton Volume Project Lifecycle Superseded by NEB 63 Commitment addressed in Filing A83588, Conditon 63, Security Management Programs. CER has terminals, and other facilites will undergo a Security Risk Assessment (SRA) and appropriate controls 4B, 4B-56. Conditon completed an implementaton assessment on July 15, 2017 and found the security program was in will be implemented prior to the start of constructon. full compliance with conditon 63. Multple CER site inspectons to determine site implementaton have been competed with no fndings. 3623 Security City of Kamloops, City of Trans Mountain will confrm if any additonal RCMP resources required for constructon will be paid Non-Regulatory Prior to Constructon No Longer Provincial government and RCMP will not accept funding from TMEP for police resources. Merrit, District of for by Trans Mountain. Commitment Applicable Clearwater, RCMP

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3630 Security Workshop Partcipants Trans Mountain will consider the request for a Security Liaison for each policing contact per Non-Regulatory Project Lifecycle Superseded by NEB 63 Commitment addressed in Filing A83588, Conditon 63, Security Management Programs. CER has community during constructon and providing ongoing security intelligence informaton. Commitment Conditon completed an implementaton assessment on July 15, 2017 and found the security program was in full compliance with conditon 63. Multple CER site inspectons to determine site implementaton have been competed with no fndings. 4556 Security NEB During constructon, in areas where there may be a concern regarding the safety of the public, Applicaton Volume Project Lifecycle In Progress restricted areas are established. Trans Mountain will have a constructon site safety in place and it 5B, 3-70. will be communicated to the town representatves and adjacent residents. 13 Stakeholder Regional District of Fraser- Trans Mountain is commited to community benefts for municipalites and regions crossed by the RD of Fraser-Fort Project Lifecycle Superseded by NEB 12, 107, 145 Trans Mountain and the Village of Valemount have signed a Community Beneft Agreement that will Engagement Fort George Project and Trans Mountain has initated discussions with local governments and organizatons to George IR No. 1.03e Conditon see a $185,000 investment to support the development of community housing and educaton explore opportunites related to its priority areas of community investment, the environment, and funding (htps://www.transmountain.com/news/2020/trans-mountain-signs-community-beneft- educaton. For Valemount, as with all pipeline communites, TMPL is commited to providing local agreement-with-the-village-of-valemount). Commitment is addressed in Conditon 12 (A5L6Y7 pp 6- business and employment opportunites within the community and region. 18); Conditon 107 (A7G4X8 pp 12); and Conditon 145. 17 Stakeholder City of Abbotsford Trans Mountain will contnue to work with the City of Abbotsford to understand the applicability of City of Abbotsford IR Project Lifecycle Superseded by NEB 14, 49 The Technical Working Group that Trans Mountain has established with the City of Abbotsford Engagement its bylaws and standards to the constructon of the Project. No. 1.04a Conditon provided an ongoing forum for discussion on topics of this nature. 22 Stakeholder City of Abbotsford Trans Mountain is commited to working with the City of Abbotsford with respect to the Project and City of Abbotsford IR Prior to Constructon Superseded by NEB 14, 49 The Technical Working Group mechanism sanctoned under Conditons 14 and 49 provides a forum Engagement current operatons to ensure the safety of the public that live, work and play near the pipeline and No. 1.16c, City of Conditon for discussions of this type (with one of the TWGs being for Abbotsford). Commitment is addressed facilites. Abbotsford IR No. by Conditon 49 (Technical Working Group Meetngs) Most recent Report Update No. 7 fled on 1.16e October 9, 2020 (Filing ID A7J2Q1). 28 Stakeholder City of Abbotsford Trans Mountain will engage Mt. Lehman Fire Hall and Abbotsford municipal ofcials to ensure access City of Abbotsford IR Prior to Constructon Complete Engagement and egress are available for emergency vehicles during constructon. These plans will be No. 1.21a communicated to Abbotsford once defnitve plans are available. 31 Stakeholder City of Burnaby Issues and concerns from Municipal, School Administrators, and Community Facilites will be City of Burnaby IR Prior to Constructon Superseded by NEB 64 Engagement documented and incorporated into Trans Mountain Expansion Project Health and Safety No.1.06.08b; NEB IR Conditon Management Plan and Prime Contractor’s Project-Specifc Safety Plans (PSSPs). No. 1.15c (A3W9H8, page 117) 33 Stakeholder City of Burnaby Trans Mountain commits to consult with the City of Burnaby in the development of the Project City Burnaby IR No. Prior to Constructon Superseded by NEB 49 Commitment is adressed by Conditon 49 (Technical Working Group Meetngs) Most recent Report Engagement constructon schedule within City boundaries. 1.02.04b, City Conditon Update No. 7 fled on October 9, 2020 (Filing ID A7J2Q1). Burnaby IR No. 1.03.07f 74 Stakeholder NEB Trans Mountain will develop a communicaton plan to facilitate a concise two-way informaton Applicaton Volume Project Lifecycle Complete This commitment has been met through the implementaton of regular internal meetngs that occur Engagement exchange between Project members, corporate head ofce departments, contractors and regulatory 6A, 3-8. to facilitate efcient informaton exchange, including regular Spread Executon meetngs, the TMEP authorites in order to efectvely manage the Project. The communicaton will also summarize the Quality Assurance Program (QAP) document and Project Managers’ partcipaton in the Notfcatons notfcatons required to regulatory authorites and the public. and Communicatons Program. 78 Stakeholder NEB During constructon, in areas where there may be a concern regarding the safety of the public, Applicaton Volume Project Lifecycle Superseded by NEB 14 Stakeholder Engagement & Communicatons will communicate site safety and security plans with Engagement restricted areas are established. Trans Mountain will have a constructon site safety plan in place and 5B, 3-70. Conditon local governments, the public and other stakeholders as part of ongoing community readiness it will be communicated to the town representatves and adjacent residents. engagement. This commitment will be addressed by BC EAO Conditon 14. Trans Mountain is documentng ongoing engagement and communiciaton actvites in annual Public Engagement Summary Reports pursuant to BC EAO Conditon 14. A Stakeholder Engagement Procedure will also be developed and managed under ISLMS. 80 Stakeholder NEB Trans Mountain will provide company contact informaton to those potentally afected by noise in NEB IR No. 1.19b During Constructon Superseded by NEB 74, 80, 86 Commitment is address in Conditon 74 (A5R9R2 pp 8; Conditon 80 (A7G5C6 pp 23-24); and Engagement the event there are noise concerns related to operaton of the pipeline system, including: residents, Conditon Conditon 86 (A7E1Y5 pp 17-18). land users, and Aboriginal groups. 95 Stakeholder NEB Trans Mountain will provide contact informaton to residents, land users and Aboriginal groups that NEB IR No. 4.03b Prior to Constructon Superseded by NEB 85 Over the course of the Project, Trans Mountain has provided company contact informaton to Engagement may be afected by air emissions from the tunnel constructon such that they can efectvely Conditon landowners, stakeholders and Indigenous groups in a variety of ways, including constructon communicate any concerns. notfcatons, signage, supplementary communicaton material, advertsing, and at www.transmountain.com. Contact informaton is the same for Operatons and TMEP. Commitment is addressed by Conditon 85 - Air Emissions Management Plan for Burnaby Tunnel Constructon (A85269-3 secton 6 pp 10-12). Commitment is also addressed by providing company contact informaton in a methods of notfcaton, including email updates, mailed updates, website and advertsing. 115 Stakeholder Canadian Parks and A full report of all workshop feedback will be included in Consultaton Update No. 2 which will be CPAWS IR No. Prior to Constructon Superseded by NEB 49 This commitment was addressed in Conditon 49 Report Update No 2 (A91269 pp 49). Engagement Wilderness Society - BC provided to the NEB in Q3 2014. 1.2.3.3 Conditon Chapter 116 Stakeholder City of Abbotsford The Project constructon communicaton and notfcaton program will be developed in consultaton City of Abbotsford IR Prior to Constructon Superseded by NEB 49 Commitment is addressed by Conditon 49 (A94775 Table 4.3 pg. 17). Engagement with the City of Abbotsford and its consttuents. No. 1.26a Conditon 117 Stakeholder City of Burnaby Prior to constructon, Trans Mountain will undertake a communicatons and notfcaton program to City Burnaby IR No. Project Lifecycle Superseded by NEB 49 Commitment will be addresed by the Communicatons and Notfcatons Plan (CNP) that will be Engagement ensure local businesses and members of the public are made aware of potental constructon 1.33.27d Conditon included in the next Conditon 49 Technical Working Group (TWG) update in April 2021. impacts. 119 Stakeholder City of Burnaby Trans Mountain will develop a Communicatons and Notfcaton Program identfying geographic City Burnaby IR No. Project Lifecycle Superseded by NEB 49 Commitment will be addresed by the Communicatons and Notfcatons Plan (CNP) that will be Engagement communicaton areas, in consultaton with local governments. 02.04a Conditon included in the next Conditon 49 Technical Working Group (TWG) update in April 2021.

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120 Stakeholder City of Burnaby Trans Mountain’s engagement is ongoing. In partcular Trans Mountain will contnue to meet with City Burnaby IR No. Project Lifecycle Superseded by BC 14 Trans Mountain contnues to engage with the public and mitgate issues where possible as stated in Engagement stakeholders who will be impacted by the Trans Mountain Expansion Project to understand and 1.31.01d EAO Volume 3 of the Facilites Applicaton (A55987) and subsequent Consultaton Update Filings mitgate their concerns where possible. Trans Mountain remains commited to ongoing dialogue and (A59343, A62087, A62088, A4H1W2 through A4H1W8, A72224). Trans Mountain is documentng mitgaton of issues with its neighbours as the proposed Project proceeds. ongoing engagement and communicaton actvites in annual Public Engagement Summary Reports pursuant to BC EAO Conditon 14 untl one year post commencement of operatons. A Stakeholder Engagement Procedure will be developed and managed under ISLMS. 124 Stakeholder NEB As part of a commitment to keep stakeholders informed of project actvites, Trans Mountain has Pre-Applicaton Project Lifecycle In Progress Trans Mountain is documentng ongoing engagement and communicaton actvites, including digital Engagement contnued to provide project updates, maintain an actve website, phone line and email address. Project Descripton, and website opportunites, in annual Public Engagement Summary Reports pursuant to BC EAO Trans Mountain will contnue to seek opportunites to build awareness of the digital engagement pp 58, 59. Conditon 14. A Stakeholder Engagement Procedure will be developed and managed under ISLMS. platorm throughout the project’s development. 125 Stakeholder NEB During constructon Trans Mountain will provide advanced and ongoing notfcaton to users of the Applicaton Volume During Constructon Superseded by NEB 49 Commitment will be addressed by the Communicatons and Notfcatons Plan (CNP) that will be Engagement area to ensure they are fully aware of the actvites that will occur and are occurring. Should the 5B, 3-11. Conditon included in the next Conditon 49 Technical Working Group (TWG) update in April 2021. Project afect recreatonal users’ infrastructure during constructon, mitgaton processes will ensure the infrastructure is lef in the same, if not beter conditon. 126 Stakeholder NEB Trans Mountain antcipates initatng Community Readiness Engagement in Q4 of 2014, which will NEB IR No. 1.16a Prior to Constructon Superseded by NEB 58, 96, 107 The commitment is addressed in Conditon 58 (C09623-1 pp 4-6); Conditon 96 (A7G5H7 pp 7-24); Engagement focus on engaging local First Natons, community interest groups, economic development Conditon and Conditon 107 (C06916-1 pp 8-14). organizatons, local governments, and municipal or provincial authorites in communites most closely linked to workforce hostng. 127 Stakeholder NEB Trans Mountain commits to consult with municipal and regional authorites and, as relevant, NEB IR No. 1.15c Project Lifecycle Superseded by NEB 64 Engagement administrators of school and community facilites, on Public Protecton measures. Agreed to Conditon measures will be incorporated into the Trans Mountain Health and Safety Management Plan which will form the minimum standards of Prime Contractor’s Project Specifc Safety Plans. Relevant Issues and concerns from Municipal, School Administrators, and Community Facilites will be documented. 129 Stakeholder NEB Trans Mountain will contnue to reach out to schools ofering presentatons or meetngs to discuss NEB IR No. 2.008a Project Lifecycle Superseded by BC 14 Ongoing engagement actvites are being documented in annual Public Engagement Summary Engagement potental concerns. EAO Reports pursuant to BC EAO Conditon 14. Most recent report was fled October 2020 – sec 2.3.3 pg. 13. A Stakeholder Engagement Procedure will be developed and managed under ISLMS. 136 Stakeholder City of Abbotsford Trans Mountain is commited to City of Abbotsford input to the detailed engineering and design of City of Abbotsford IR Prior to Constructon Superseded by NEB 14, 49 Commitment will be addressed by Conditon 49 (Technical Working Group Meetngs) Most recent Engagement Line 2 to minimize impacts and potental delay or disrupton to future installaton of city No. 1.03b.ii Conditon Report Update No. 8 fled on April 13, 2021 (Filing ID A7S5K7). infrastructure, including installaton of permanent pipeline crossing locatons where needed. 137 Stakeholder City of Abbotsford Trans Mountain will hold discussions with Sumas Canal owner/operator to establish if there any City of Abbotsford IR Prior to Constructon Superseded by NEB 49 Commitment is addressed by Conditon 49 (Technical Working Group Meetngs) Most recent Report Engagement plans for its development and this will be considered in fnalizing crossing depth during detailed No. 1.17e Conditon Update No. 7 fled on October 9, 2020 (Filing ID A7J2Q1). engineering and design phase. 138 Stakeholder City of Abbotsford Trans Mountain will provide as-built shape fles to the City of Abbotsford. City of Abbotsford IR Prior to Operatons Superseded by NEB 14, 49 Commitment will be addressed by Conditon 49 (Technical Working Group Meetngs) Most recent Engagement No. 1.03b.iii Conditon Report Update No. 8 fled on April 13, 2021 (Filing ID A7S5K7). 147 Stakeholder City of Burnaby Trans Mountain is willing to meet with the City of Burnaby to discuss planned and proposed projects City Burnaby IR No. Prior to Constructon Superseded by NEB 49 Commitment is addressed by Conditon 49 (Technical Working Group Meetngs) Most recent Report Engagement or upgrades to municipal infrastructure to inform the design of the proposed pipeline Project. 1.33.16q, City Conditon Update No. 7 fled on October 9, 2020 (Filing ID A7J2Q1). Burnaby IR No. 1.33.16s, City Burnaby IR No. 1.33.15d, City Burnaby IR No. 1.43.04a 151 Stakeholder City of Burnaby Trans Mountain will contnue to engage with the City of Burnaby, including contnuing to share City Burnaby IR No. Project Lifecycle Superseded by NEB 49 Commitment is addressed by Conditon 49 (Technical Working Group Meetngs) Most recent Report Engagement updated project informaton, incorporatng input and addressing concerns about the proposed 1.33.07a Conditon Update No. 7 fled on October 9, 2020 (Filing ID A7J2Q1). Project as they arise. Should the City of Burnaby have feedback, Trans Mountain would welcome an opportunity to meet with the City, at a mutually convenient tme, to discuss engineering design standards. 172 Stakeholder Metro Vancouver Trans Mountain is commited to respectul, transparent and collaboratve interactons with Metro Metro Vancouver IR Project Lifecycle Superseded by NEB 49 Commitment is addressed by Conditon 49 (Technical Working Group Meetngs) Most recent Report Engagement Vancouver during the detailed engineering and constructon planning phase and will contnue to No. 1.1.3.07a Conditon Update No. 7 fled on October 9, 2020 (Filing ID A7J2Q1). share updated project informaton and address Metro Vancouver’s concerns about the TMEP as they arise. 178 Stakeholder Regional District of Fraser- Trans Mountain commits to contnued consultaton with the Village of Valemount and the Regional RD of Fraser-Fort Prior to Constructon Superseded by NEB 49 Commitment is addressed by Conditon 49 (Technical Working Group Meetngs) Most recent Report Engagement Fort George District to discuss planned or proposed municipal upgrades to infrastructure. George IR No. 1.12j Conditon Update No. 7 fled on October 9, 2020 (Filing ID A7J2Q1). 179 Stakeholder Regional District of Fraser- Trans Mountain commits to full communicaton and co-operaton with Valemount in coordinatng, so RD of Fraser-Fort Prior to Constructon Superseded by NEB 49 Commitment is addressed by Conditon 49 (Technical Working Group Meetngs) Most recent Report Engagement Fort George as to eliminate or reduce constructon disruptons to the Valemount Glacier Destnaton Resort. George IR No. 1.05a Conditon Update No. 7 fled on October 9, 2020 (Filing ID A7J2Q1). 180 Stakeholder Regional District of Fraser- Trans Mountain commits to meetng with the Regional District of Fraser Fort George to discuss RD of Fraser-Fort Prior to Constructon Superseded by NEB 49 This commitment is addressed by Conditon 49 Report Update No. 5 (A6Y7Q7 pp 15). Engagement Fort George constructon plans, worker accommodaton strategy, and mitgaton of potental impacts to the George IR No. Conditon community of Valemount. 1.12i.2 181 Stakeholder Regional District of Fraser- Trans Mountain commits to organize a meetng with Regional District of Fraser-Fort George by RD of Fraser-Fort Prior to Constructon No Longer Pipeline relocated to avoid impacts to the Landfll site. See alignment sheets for this area. Engagement Fort George March 2015 on their concerns about constructon near their former landfll site, near Hwy 5 N George F-IR No. Applicable Valemount, BC. 1.06b

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185 Stakeholder Township of Langley Trans Mountain commits to consult with the Township of Langley on its mitgaton measures that will Langley IR No. 1.08a Prior to Constructon Superseded by NEB 94 Consultaton reports on the protecton of municipal water sources are being fled under Conditon Engagement be incorporated into the detailed design and engineering to protect groundwater and aquifers. Conditon 94. As shown by those flings, consultaton with the Township of Langley has taken place (e.g. see Filing ID A84464, Document A5R4Z5 at PDF Page 28 and Filing ID A97722 at PDF Page 11). 186 Stakeholder Township of Langley Trans Mountain commits to provide municipalites as-built shape fles to the Township of Langley on Langley IR No. 1.10a Prior to Operatons Superseded by NEB 14, 49 Commitment will be addressed by Conditon 49 (Technical Working Group Meetngs) Most recent Engagement locaton of TMEP Line 2. Conditon Report Update No. 8 fled on April 13, 2021 (Filing ID A7S5K7). 256 Stakeholder NEB The Project will endeavour to work its constructon schedule around such community events to the Part 2 – Consultaton During Constructon In Progress This commitment will be addressed by BC EAO Conditon 14. Trans Mountain is documentng Engagement greatest extent possible. Trans Mountain will be implementng a range of measures to reduce Update No. 1, 2-54 ongoing engagement and communicaton actvites in annual Public Engagement Summary Reports disturbance to community assets and events. Key mitgaton measures include: avoiding important pursuant to BC EAO Conditon 14. A Stakeholder Engagement Procedure will be developed and community features and assets during right-of-way fnalizaton; narrowing the right-of-way in select managed under ISLMS. areas; scheduling constructon to avoid important community events, where possible; communicaton of constructon schedules and plans with community ofcials; and other ongoing consultaton and engagement with local and Aboriginal governments. 308 Stakeholder City of Port Moody Trans Mountain will meet with the City of Port Moody to discuss potental ecological enhancement City of Port Moody Prior to Constructon Complete Commitment addressed by ofers made to meet with the City of Port Moody as part of ongoing Engagement opportunites for the Port Moody Arm area of Burrard Inlet. IR No. 1.4.2b engagement throughout the lifecycle of the Project and the establishment of the Community Investment program that includes environmental stewardship initatves. 379 Stakeholder Sto:lo Collectve Trans Mountain has commited to communicatng with local health authorites, including the First Sto:lo Collectve During Constructon In Progress Proof of completon will be the Records of Engagement. Engagement Natons Health Authority, on the tming of the Project, duraton of stay in the local community, Recommendaton expected number of people coming into the area and onsite health care plans. #79, #80, #81 436 Stakeholder NEB Those potentally afected by air emissions from the Edmonton Terminal, including residents, land NEB IR No. 1.34e Prior to Operatons Superseded by NEB 49 Commitment will be addressed by the Communicatons and Notfcatons Plan (CNP) that will be Engagement users, and Aboriginal groups, will be provided with contact informaton for use in the event there are Conditon included in the next Conditon 49 Technical Working Group (TWG) update in April 2021. concerns about such air emissions. 457 Stakeholder NEB During constructon Trans Mountain will provide advanced and ongoing notfcaton to users of the Technical Update Project Lifecycle Superseded by NEB 49 Commitment will be addressed by the Communicatons and Notfcatons Plan (CNP) that will be Engagement area to ensure they are fully aware of the actvites that will occur and are occurring. No. 1 & Consultaton Conditon included in the next Conditon 49 Technical Working Group (TWG) update in April 2021. Update No. 2 - Part 2 Table 1.6.2-1 537 Stakeholder Simon Fraser University Trans Mountain will ensure that constructon plans including constructon schedule and trafc SFU IR No. 2.1.7 Prior to Constructon Complete Commitment is addressed by Conditon 73 - Trafc Control Plan (TCP). An updated TCP fled Engagement management plans will be communicated with SFU in a tmely manner. September 14, 2020 (A714S7) was shared with SFU on December 16, 2020. 540 Stakeholder NEB Trans Mountain will consult with owners and operators of Merrit, Kamloops and Blue River airports NEB IR No. 2.014 During Constructon In Progress Trans Mountain is documentng ongoing engagement and communicaton actvites in annual Public Engagement as part of Community Readiness Engagement and will contnue throughout the Project planning and Engagement Summary Reports pursuant to BC EAO Conditon 14 untl one year afer the potental constructon phases as more informaton becomes available. commencement of Operatons. Commitment will be addressed in an upcoming report. 542 Stakeholder NEB Trans Mountain will contnue to conduct open proactve engagement with adjacent communites NEB IR No. 4 33b.2 Project Lifecycle Superseded by NEB 14, 49 The Technical Working Group approach that has been sanctoned under Conditons 14 and 49 Engagement with respect to future land use developments. Conditon provides an appropriate forum for the discussion of maters of interest with partcipatng municipalites (including this aspect of future land use development). 567 Stakeholder Burnaby Residents Trans Mountain intends to review and update its brochure enttled “Earthquakes and Pipelines: Can BROKE IR No. 2.1e Prior to Constructon Complete The subject brochure was updated in November 2018 under the new ttle “Earthquakes and Pipeline Engagement Opposing Kinder Morgan they Survive Together” for future Public Awareness Actvites. Safety Guide”. The main content was later shifed to Trans Mountain’s public website under the Expansion - BROKE heading of Seismic Safety Measures (as part of a larger digitzaton initatve). 571 Stakeholder City of Abbotsford Trans Mountain commits to working with the City of Abbotsford to defne a terms of reference City of Abbotsford IR Project Lifecycle Superseded by NEB 14 Commitment addressed by Conditon 14 (A5I8K4 pp 10). Engagement defning the roles, responsibilites, and appropriate tmelines related to ongoing engagement No. 2.1.02a/b Conditon actvites as the Project proceeds through detailed engineering, constructon planning and in-service; should the proposed project be approved. 572 Stakeholder City of Abbotsford As with all partes afected by its proposed Project, Trans Mountain is commited to contnuing open City of Abbotsford IR Project Lifecycle Superseded by NEB 49 Commitment is addressed by Conditon 49 (Technical Working Group Meetngs) Most recent Report Engagement and transparent dialogue with the City of Abbotsford throughout detailed project design, No. 1.27a; City of Conditon Update No. 7 fled on October 9, 2020 (A7J2Q1 Table 2 pp 2). constructon and operatons to ensure that Trans Mountain’s actvites have as litle impact as Abbotsford IR No. possible on neighbouring residents, businesses and insttutons. In keeping with this commitment, 2.1.02; City of Trans Mountain will contnue to meet with the City of Abbotsford in 2015 as constructon planning Abbotsford IR No. advances to contnue discussing any interests or concerns the City of Abbotsford might have 1.27a, (Filing ID regarding the design, constructon and operatons of the proposed Project. A3X5Z2) 573 Stakeholder City of Abbotsford Trans Mountain is commited to and will contnue to work with the City of Abbotsford as it develops City of Abbotsford IR Prior to Constructon Superseded by NEB 14, 49 Commitment will be addressed by the Communicatons and Notfcatons Plan (CNP) that was Engagement its constructon communicaton plans through the Technical Working Group. No. 2.2.03b Conditon included in Conditon 49 Report Update No. 8 (Appendix A) fled on April 13, 2021. 574 Stakeholder City of Abbotsford Trans Mountain will commit to working with the City of Abbotsford to identfy and limit the amount City of Abbotsford IR Prior to Constructon Superseded by NEB 14, 49 Commitment will be addressed by Conditon 49 (Technical Working Group Meetngs) Most recent Engagement of workspace used through the City of Abbotsford Parks to the extent possible to support No.2.2.04 Conditon Report Update No. 8 fled on April 13, 2021 (Filing ID A7S5K7). constructon. The project is commited to work with City of Abbotsford personnel to develop restoraton plans that would support Abbotsford’s park objectves. 588 Stakeholder City of Abbotsford Trans Mountain confrms its commitment to consult with the City of Abbotsford on valve locatons City of Abbotsford IR Prior to Constructon Superseded by NEB 14, 49 Commitment will be addressed by Conditon 49 (Technical Working Group Meetngs) Most recent Engagement and type of valves at each locaton. No. 2.4.17a Conditon Report Update No. 8 fled on April 13, 2021 (Filing ID A7S5K7). 589 Stakeholder City of Abbotsford Trans Mountain commits to the City of Abbotsford that if some of the feedback is not refected in City of Abbotsford IR Prior to Constructon Superseded by NEB 49 Commitment is addressed by Conditon 49 (Technical Working Group Meetngs) Most recent Report Engagement the fnal design, Trans Mountain will be open and transparent with the City on ratonale for the No. 2.4.17a Conditon Update No. 7 fled on October 9, 2020 (A7J2Q1 Table 2 pp 2). decision. 592 Stakeholder City of Abbotsford Trans Mountain will commit to work with the City of Abbotsford on possible special designs (deeper City of Abbotsford IR Prior to Constructon No Longer Commitment will be addressed by Conditon 49 (Technical Working Group Meetngs) Most recent Engagement burial, structural fll) for the pipeline, in select areas for the Auguston development near RK 1117 to No. 2.7.24 Applicable Report Update No. 8 fled on April 13, 2021 (Filing ID A7S5K7). 1118 and beyond to McKee Road.

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593 Stakeholder City of Abbotsford As part of ongoing Engagement, Trans Mountain will undertake engagement and communicatons City of Abbotsford IR During Constructon Superseded by NEB 14, 49 Commitment addressed by Conditon 49 (A94775 Table 4.3 pp 17). Engagement actvites in Project route communites regarding constructons plans, antcipated impacts and No. 2.2.03b Conditon efects of constructon and mitgaton measures to reduce the negatve impacts of constructon on local communites. 612 Stakeholder City of Burnaby Trans Mountain will undertake engagement and communicatons actvites in Project route City Burnaby IR No. Project Lifecycle Superseded by NEB 49 Commitment will be addressed by the Communicatons and Notfcatons Plan (CNP) that will be Engagement communites regarding constructons plans, antcipated impacts and efects of constructon and 2.060b Conditon included in the next Conditon 49 Technical Working Group (TWG) update in April 2021. mitgaton measures to reduce the negatve impacts of constructon on local communites. 626 Stakeholder City of Burnaby Trans Mountain is willing to work with the City of Burnaby collaboratvely to develop an approach to City Burnaby IR No. Prior to Constructon No Longer This commitment is no longer applicable with the Burnaby Mountain Tunnel having no impacts on Engagement constructon that minimizes potental impacts on the Barnet Escarpment Urban Trail. 2.100 Applicable the Barnet Escarpment Urban Trail. See alignment sheets. 633 Stakeholder City of Burnaby Trans Mountain commits to engaging with local government, Eagle Creek Streamkeepers, park users City Burnaby IR No. Project Lifecycle Superseded by BC 14 Commitment will be addressed by future BC EAO Conditon 14 Public Engagement Summary Report Engagement and other interest groups regarding proposed actvites in local parks and sensitve areas along with 2.134 EAO Updates. These are fled on the EPIC website on an annual basis with the Environment Assessment associated Environmental mitgaton and reclamaton plans for restoring the area. Ofce untl one year afer the commencement of Operatons unless otherwise directed by the EAO. 636 Stakeholder City of Burnaby Trans Mountain commits to contnue to meet with Metro Vancouver as constructon planning City Burnaby IR No. Project Lifecycle Superseded by NEB 49 Commitment is addressed by Conditon 49 (Technical Working Group Meetngs) Most recent Report Engagement advances to contnue discussing any interests or concerns Metro Vancouver might have regarding 2.136 Conditon Update No. 7 fled on October 9, 2020 (A7J2Q1 Table 2 pp 2). the design, constructon and operatons of the proposed Project. 640 Stakeholder City of Coquitlam As part of Trans Mountain’s commitment to ongoing engagement, it will contnue to engage with the City of Coquitlam IR Project Lifecycle Superseded by NEB 49 Commitment is addressed by Conditon 49 (A7J2W1 Table 7 pg. 11). Engagement United Boulevard business area regarding constructons plans. No. 2.A; City of Conditon Coquitlam IR No. 1.B.3 642 Stakeholder City of Coquitlam Trans Mountain will coordinate with City of Coquitlam in developing and executng a protocol City of Coquitlam IR Prior to Constructon Superseded by NEB 49 Commitment addressed in Conditon 49 (A91269 Table 5.1 pg. 37). Engagement agreement for constructon of TMEP within the City of Coquitlam. No. 2.D Conditon 646 Stakeholder NEB Trans Mountain will hold two informaton sessions with commercial fshers and vessel operators in NEB IR No. 3.007 Prior to Operatons Complete Marine Public Outreach Program Executon Plan (includes engagement summary), Rev 003, October Engagement conjuncton with Pacifc Pilotage Authority (PPA) in Vancouver and Victoria. 30, 2018, See Atachment 9.2.2 Trans Mountain Direct Evidence NEB Reconsideraton Hearing (MH- 052-2018, Filing ID A6J6I4), Formerly CER Conditon 131; now BCEAO Conditon 35, Marine Public Outreach See Appendix D (p. 37) for engagement summary. 650 Stakeholder City of Kamloops Trans Mountain is commited to discussing the proposed road crossing methodologies with the City City of Kamloops IR Prior to Constructon Superseded by NEB 14, 49 Commitment will be addressed by Conditon 49 (Technical Working Group Meetngs) Most recent Engagement of Kamloops for incorporaton of feedback into Detailed Engineering and Design. No. 2.01a Conditon Report Update No. 8 fled on April 13, 2021 (Filing ID A7S5K7). 654 Stakeholder City of Kamloops Trans Mountain will conduct engagement with municipal governments and community stakeholders City of Kamloops IR Prior to Constructon Superseded by NEB 59 Commitment addressed by Conditon 59 (A5T8H6 secton 3.8 pp 18). Engagement in hub communites to discuss worker accommodaton optons and strategies. No. 2.09 Conditon 655 Stakeholder City of Kamloops Trans Mountain will contnue to update the Kamloops Hotel Associaton as more informaton about City of Kamloops IR Project Lifecycle Superseded by BC 14 This commitment will be addressed by BC EAO Conditon 14. Trans Mountain is documentng Engagement workforce housing projectons and tmelines becomes available. No. 2.09 EAO ongoing engagement and communicaton actvites in annual Public Engagement Summary Reports pursuant to BC EAO Conditon 14. A Stakeholder Engagement Procedure will be developed and managed under ISLMS. 656 Stakeholder City of Kamloops Trans Mountain will arrange procurement open houses or workshops at various local and regional City of Kamloops IR Prior to Constructon Superseded by BC 14 Commitment was completed as reported in BC EAO Conditon 14 Engagement Summary Report Engagement locatons in Spread 1, to present potental supply opportunites to the project. No. 2.11 EAO Updates No. 1 (sec. 2.3.3); No. 2 (sec 2.3.4) and No. 3 (sec 2.3.6). Commitment also addressed in fling A7L8I2 Conditon 107 secton 7.2 pp 20-21. 665 Stakeholder City of New Westminster Trans Mountain will undertake a communicatons and notfcaton program to ensure local City New Prior to Constructon Superseded by NEB 49 Commitment will be addressed in the Communicatons and Notfcatons Plan (CNP) that will be Engagement businesses, services and members of the public are made aware of potental constructon impacts Westminster IR No. Conditon included in the next Conditon 49 Technical Working Group (TWG) Update in April 2021. including lane restrictons, road closures and alternate access plans. 2.C.2 678 Stakeholder City of Port Moody Trans Mountain is commited to engaging with Port Moody going forward and will invite the City and City of Port Moody Project Lifecycle Complete Trans Mountain contnues to provide meetngs with municipal governments to provide updated Engagement its consttuents to future engagement opportunites. IR No. 2.2.1 Project info however at this stage of the Project these are occurring on an as-needed basis as is the case with the City of Port Moody. This includes ofering briefngs to newly elected municipal ofcials as requested. During the constructon phase of the Project, ongoing community relatons is focused on communites impacted by constructon actvity. Trans Mountain is providing tmely constructon update newsleters and notfcatons on a regional basis during the Constructon phase of the Project to keep stakeholders who may be impacted and interested public informed about constructon actvites. Informaton is updated on Project website and TM is keeping the public informed of local constructon schedule and community impacts through advertsing and social media channels. Trans Mountain contnues to share informaton with the City of Port Moody as relevant and be responsive to inquiries. 700 Stakeholder City of Surrey Trans Mountain will contnue to share the results of any new studies or work being completed and City of Surrey IR No. Project Lifecycle Superseded by NEB 49 Commitment is addressed by Conditon 49 (Technical Working Group Meetngs) Most recent Report Engagement communicate any changes or updates to Project plans with the City of Surrey. 2.1.1.a.i Conditon Update No. 7 fled on October 9, 2020 (A7J2Q1 Table 2 pp 2). 711 Stakeholder Township of Langley Trans Mountain will provide the Township of Langley with “issued for constructon centre line” GIS Langley IR No. 2.09.a Prior to Constructon Superseded by NEB 14, 49 Commitment will be addressed by Conditon 49 (Technical Working Group Meetngs) Most recent Engagement shape fles as soon as they are available and with sufcient tme for the Township to conduct Conditon Report Update No. 8 fled on April 13, 2021 (Filing ID A7S5K7). emergency management planning. 713 Stakeholder Township of Langley Once pipeline installaton is complete, Trans Mountain commits to providing the Township of Langley IR No. 2.09.a Prior to Operatons Superseded by NEB 14, 49 Commitment will be addressed by Conditon 49 (Technical Working Group Meetngs) Most recent Engagement Langley with “surveyed as-built centre line” shape fles. Conditon Report Update No. 8 fled on April 13, 2021 (Filing ID A7S5K7). 722 Stakeholder Township of Langley Trans Mountain is commited, as part of the discussion with the Township of Langley, to providing Langley IR No. 2.17.a Prior to Constructon Superseded by NEB 49 Commitment will be addressed in the Communicatons and Notfcatons Plan (CNP) that will be Engagement forward notfcaton to afected residents and/or businesses. Conditon included in the next Conditon 49 Technical Working Group (TWG) Update in April 2021. 723 Stakeholder Township of Langley Trans Mountain intends to consult with the Township of Langley regarding changes to the Township’s Langley IR No. 2.18.a Prior to Constructon Superseded by NEB 49 Commitment is addressed by Conditon 49 (C05717 Table 9 pg. 15). Engagement parks, and minimizing constructon damage, vehicle use and parking within the Township parks. Conditon

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725 Stakeholder Township of Langley Trans Mountain commits to working with the Township of Langley to address site specifc mitgaton Langley IR No. Prior to Constructon Superseded by NEB 14, 49 Commitment is addressed with the development of the Township of Langley Natural Areas Plantng Engagement measures regarding the three (3) municipal parks afected by the proposed pipeline prior to 2.18.b Conditon Plan and the overall Project Agreement in place with the Township. The plan addresses reclamaton constructon in the parks. of the 3 municipal parks (natural areas) in the Township of Langley and was based on meetngs with the Township of Langley documented through Conditon 49 – TWGs; where possible the plan incorporates requests from the Township. 822 Stakeholder Fraser Valley Regional Trans Mountain commits to providing the Fraser Valley Regional District (FVRD) with a link to the FVRD IR No. 2.16 During Constructon In Progress Commitment will be addressed by providing link to Conditon 106 Monthly Constructon Progress Engagement District progress reports on the NEB website and notfying the district prior to conductng work in the FVRD. Reports during constructon in Fraser Valley Regional District area of jurisdicton. 825 Stakeholder Fraser Valley Regional Trans Mountain Pipeline ULC (Trans Mountain) commits to provide the Fraser Valley Regional District FVRD IR No. 2.17a, During Constructon In Progress Commitment will be addressed by providing a summary to the FVRD if a complaint is received about Engagement District (FVRD) with monthly odour and air quality complaint reports during constructon of the Trans FVRD IR No. 2.17b odour or air quality related to constructon avtvites in Spread 6 and 7. To date no complaints have Mountain Expansion Project within the FVRD geographical boundary. been received. SEEMP Highlight Reports are also being provided to local stakeholders, including the FVRD, on a quarterly basis. Conditon 79 - Air Emissions Management Plan for the Edmonton, Sumas and Burnaby Terminals provides a descripton of the public communicatons and complaints response process (Sec. 6.0 and Appendix F). 838 Stakeholder Corporaton of the City of Trans Mountain commits to consult with coastal communites on a community benefts program City of Victoria No. Prior to Operatons Complete Commitment addressed as documented in CVA2020- 365 IR 50 response fled June 2020. Engagement Victoria focused on marine spill response. 2.2 899 Stakeholder Wembley Estates Strata Trans Mountain commits that it will assign constructon liaison roles as part of its constructon team Wembley Estates IR During Constructon Superseded by BC 14 Commitment addressed by BC EAO Conditon 14 Engagement Summary Report (Update No. 1 sec. Engagement Council as a key point of contact for those impacted by its constructon work. No. 2.1 EAO 2.5.2). Commitment also addressed in SE&C Executon Enabling Plan (secton 4.3 pp 40-42). 926 Stakeholder Landowner - Dr. Karen Trans Mountain commits to notfying Dr. Karen Kavanagh a minimum of one week prior to startng NEB Route Hearing During Constructon Superseded by NEB 49 Commitment will be addressed by the Communicatons and Notfcatons Plan (CNP) that will be Engagement Kavanagh tunneling operatons to discuss the tunnel boring actvites, tming and duraton to her research Decision Seg 7 Conditon included in the next Conditon 49 Technical Working Group (TWG) update in April 2021. schedule. Burnaby Sec 3 1028 Stakeholder Regional District of Fraser- As part of the Worker Code of Conduct, Trans Mountain will develop guidance for workers outlining RD of Fraser-Fort During Constructon Complete Commitment addressed by BC EAO Conditon 14 Report Summary (Update No. 3 Secton 3.1 Table Engagement Fort George appropriate, as well as prohibited, of-site recreatonal pursuits, use areas, and services in George IR No. 1.04a 23 pg. 30). constructon hub communites including the Village of Valemount. 1164 Stakeholder Fraser Valley Watersheds Trans Mountain will engage with the Fraser Valley Watersheds Coaliton during detailed design FVWC IR No. 1.4.1 Prior to Constructon Complete Commitment 1164 was met with engagement ofer in Q2 2020 to discuss Project and constructon Engagement Coaliton phase to evaluate alignment optons to cross Stewart Creek (Slough) to minimize disturbance of at Stewart Creek; no response from stakeholder. existng restoraton works. 1199 Stakeholder Township of Langley Trans Mountain is willing to meet with representatves of the Township of Langley to share Langley IR No. 1.05e Prior to Constructon Superseded by NEB 14, 49 Commitment will be addressed by Conditon 49 (Technical Working Group Meetngs) Most recent Engagement informaton on mainline block valve locatons as the detailed engineering design is progressed. Conditon Report Update No. 8 fled on April 13, 2021 (Filing ID A7S5K7). 1439 Stakeholder Township of Langley Trans Mountain is commited to respectul, transparent and collaboratve interactons with the Langley IR No. 1.12d Project Lifecycle Superseded by BC 14 This commitment will be addressed by BC EAO Conditon 14. Trans Mountain is documentng Engagement Township of Langley. Trans Mountain will contnue to engage with the community, including EAO ongoing engagement and communicaton actvites in annual Public Engagement Summary Reports contnuing to share updated project informaton and addressing concerns about the proposed Trans pursuant to BC EAO Conditon 14. Mountain Expansion Project as they arise. 1641 Stakeholder NEB Trans Mountain will notfy potentally afected local and regional governments and landowners NEB Cond IR No. Prior to Constructon Complete Commitment addressed by recent applicaton fling A7F6W5 to the CER on the new Ohamil Engagement about the proposed fnal Fraser Valley/Cheam camp locaton, with the invitaton to provide 54.3 temporary accommodaton work site in Spread 5B. comments on the fnal locaton. 1693 Stakeholder NEB Trans Mountain commits to hostng a public informaton session in Abbotsford to update Route Variance Prior to Constructon Superseded by BC 14 Commitment addressed by BC EAO Conditon 14 Engagement Summary Report (Update No. 1 Table Engagement stakeholders and members of the public about the Project approval and seek input into constructon Sumas Tank Farm EAO 12 pg. 41). plans and schedules, in May 2017. Applicaton pg7 1709 Stakeholder Environment Canada Trans Mountain will engage tourism operators in the Jasper Natonal Park area pertaining to the GoC EC IR No. 2.147 Project Lifecycle In Progress Will be In Progress untl Project In Service; A Stakeholder Engagement Procedure will be developed Engagement reactvaton of the existng pipeline segment between Hinton, Alberta and Hargreaves Staton, BC and managed by ISLMS. through Jasper Natonal Park. 1729 Stakeholder NEB Trans Mountain commits to consultng with City of Chilliwack on mitgaton measures to reduce the Route Variance Prior to Constructon Superseded by NEB 49 Commitment is addressed by Conditon 49 (Technical Working Group Meetngs) Most recent Report Engagement risk of third party damage, such as increasing minimum depth of cover to 1.2 meters and potentally Chilliwack BC Hydro Conditon Update No. 7 fled on October 9, 2020 (A7J2Q1 Table 2 pp 2). installing a concrete slab between TMEP pipeline at crossings of buried utlites (where constructon NEB IR 5.4c is open cut). 1730 Stakeholder NEB Trans Mountain commits to reportng to the NEB the results of its consultaton with the City of Route Variance Prior to Constructon Superseded by NEB 49 Commitment is addressed by Conditon 49 (Technical Working Group Meetngs) Most recent Report Engagement Chilliwack on mitgaton measures to reduce the risk of third party damage. Chilliwack BC Hydro Conditon Update No. 7 fled on October 9, 2020 (A7J2Q1 Table 2 pp 2). Decision pg14 1762 Stakeholder Landowners - Burnaby Trans Mountain is commited to sharing informaton on constructon plans and reclamaton plans NEB Route Hearing During Constructon Complete Commitment is complete with issuance of the Spread 7 constructon notfcaton & informaton Engagement Residents (Holly Chan, Steve directly with the Burnaby Residents. Decision Seg 7 posted to www.transmountain.com; there will be ongoing good neighbour communicaton and Cook, Karim and Anar Burnaby Residents engagement as constructon proceeds. Dossa, Lily and Frank Fan, Sec 2.3 Claudia Leung and Michael Radano) 1765 Stakeholder City of Burnaby Trans Mountain commits to contnuing to engage and remaining open to discussions with the City of NEB Route Hearing Prior to Constructon Superseded by NEB 49 Commitment addressed by Conditon 49 (A7J2W1 Conditon 49, pp 6 – 19). Engagement Burnaby around opportunites for improved mitgaton and reclamaton enhancement as part of Decision Seg 7 City Conditon detailed constructon planning. of Burnaby Sec 9 1766 Stakeholder City of Burnaby Trans Mountain commits to contnuing conversatons through its Technical Working Groups about NEB Route Hearing Project Lifecycle Superseded by NEB 49 Commitment is addressed by Conditon 49 (Technical Working Group Meetngs) Most recent Report Engagement proposed mitgaton for all fsh-bearing streams Trans Mountain would impact in Burnaby. Decision Seg 7 City Conditon Update No. 7 fled on October 9, 2020 (A7J2Q1 Table 2 pp 2). of Burnaby Sec 9

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1941 Stakeholder Sto:lo Collectve Trans Mountain will communicate with local health authorites, emergency medical service Sto:lo Collectve Prior to Constructon Superseded by NEB 58 Addressed by Conditon 58 (A5T8H6 appendix A and appendix B). Engagement authorites, social service authorites on the tming of the Project, duraton of stay in the local Recommendaton Conditon community, expected number of people coming into the area and on‑site health care plans. #79, #80, #81 2280 Stakeholder City of Abbotsford As indicated in City of Abbotsford IR No. 1.07c, Trans Mountain is commited to consultng on the City of Abbotsford IR Prior to Constructon Complete rans Mountain provided a presentaton on its Facilites Integrity Management Plan to City of Engagement Facilites Integrity Management Plan (FIMP), but Trans Mountain will not seek agreement or No. 1.07e; City of Abbotsford representatves on May 31, 2017. There were no unresolved questons or concerns. approval on the FIMP. Abbotsford IR No. 1.07c 2413 Stakeholder City of Coquitlam If, through detailed planning and discussion and consultaton with the City of Coquitlam in the Reply Evidence 19.1 During Constructon Superseded by NEB 49 Commitment addressed by Conditon 49 (A7J2Q1). Engagement Technical Working Groups (TWGs), it is determined that emergency response tmes cannot be Summary of New Conditon reasonably maintained, or that potental disruptons to access within the TMEP constructon zones Commitments - p2 - will occur, Trans Mountain would support the establishment of a temporary fre and emergency line 21 response staton during the constructon phase of TMEP. 2511 Stakeholder City of Burnaby Prior to constructon Trans Mountain will undertake a communicatons and notfcaton program to Reply Evidence 6.2 During Constructon Superseded by NEB 49 Commitment will be addressed by the Communicatons and Notfcatons Plan (CNP) that will be Engagement ensure local businesses and members of the public are made aware of potental constructon Stakeholder Conditon included in the next Conditon 49 Technical Working Group (TWG) update in April 2021. impacts including lane restrictons, road closures, and alternate access plans. Engagement - p5 - line 24, City Burnaby IR No. 1.34.04e 2836 Stakeholder City of Kamloops Prior to Constructon, Trans Mountain will arrange procurement open houses or workshops at City of Kamloops No. Prior to Constructon Superseded by BC 14 Commitment addressed by BC EAO Conditon 14 Engagement Summary Report (Update No 1 sec Engagement various local and regional locatons, in Spreads 2, 3, 4 and 7, to present potental supply 2.11 EAO 2.3.3 table 12; and Update No 2, sec 2.3.4 & sec 2.3.7 table 11). Commitment also addressed by opportunites to the project. Conditon 107 (A7L8I2 secton 7.2 pp 20-21). 3577 Stakeholder NEB Trans Mountain will make the Worker Code of Conduct available to communites and local NEB IR No. 1.16c During Constructon Superseded by NEB 59 Commitment is addressed by Conditon 59 (A5T8H6 pp 28-30 & Appendix E). Worker Code of Engagement authorites where workers will be accommodated or where temporary camps will be located. Conditon conduct can also be found at htps://www.transmountain.com/worker-code-of-conduct. 3643 Stakeholder City of Kamloops Trans Mountain will work with the City of Kamloops to relocate the Ord Road dog park during Non-Regulatory Prior to Constructon Superseded by NEB 49 Commitment is addressed by Conditon 49 (A7J2W1 Table 7 pg. 12). Engagement constructon. The City has identfed alternate locaton near Aviaton Way. Will require fencing and Commitment Conditon some facilites. 3677 Stakeholder Metro Vancouver Trans Mountain will clarify process for MV to access water mains and other utlites if they are Non-Regulatory During Operatons Superseded by NEB 14, 49 Commitment will be addressed by Conditon 14 and 49 (Technical Working Group Meetngs) Most Engagement proximate to the pipeline. Commitment Conditon recent Conditon 49 Report Update No. 8 fled on April 13, 2021 (Filing ID A7S5K7). 3799 Stakeholder Town of Edson Trans Mountain will provide a Community Liaison to be located within community and will consider Non-Regulatory During Constructon Superseded by BC 14 Commitment is addressed by BC EAO Conditon 14 Public Engagement Summary Reports pursuant Engagement regular monthly meetngs with identfed stakeholders during constructon. Commitment EAO to BC EAO Conditon 14 (Update No. 1 sec. 2.5.2) Commitment also addressed by SE&C Executon Enabling Plan (secton 4.3 pp 40-42). 3805 Stakeholder Village of Valemount Trans Mountain will provide advance notce of loss of access to backcountry roads (recreaton – ATV Non-Regulatory During Constructon Superseded by NEB 49 Commitment will be addressed by the Communicatons and Notfcatons Plan (CNP) that will be Engagement and snowmobiles) as part of the Trafc Management Plan. Commitment Conditon included in the next Conditon 49 Technical Working Group (TWG) update in April 2021. 3806 Stakeholder City of Merrit, Merrit Trans Mountain will provide a Community Liaison within the community (not constructon ofce) to Non-Regulatory During Constructon Superseded by BC 14 Commitment is addressed by BC EAO Conditon 14 Public Engagement Summary Reports pursuant Engagement Chamber of Commerce manage inquiries and ease access during constructon. Commitment EAO to BC EAO Conditon 14 (Update No. 1 sec. 2.5.2) Commitment also addressed by SE&C Executon Enabling Plan (secton 4.3 pp 40-42). 3808 Stakeholder Workshop Partcipants Trans Mountain will provide a Community Liaison for community complaints during constructon. Non-Regulatory During Constructon Superseded by BC 14 Commitment is addressed by BC EAO Conditon 14 Public Engagement Summary Reports pursuant Engagement The Community Liaison role will include specifc response tmeframes for telephone and web Commitment EAO to BC EAO Conditon 14 (Update No. 1 sec. 2.5.2) Commitment also addressed by SE&C Executon contacts; published reports that include nature of complaint, response provided, acton completed, Enabling Plan (secton 4.3 pp 40-42). and tmeframe. 3811 Stakeholder Workshop Partcipants Trans Mountain will provide a community liaison to provide a direct link to local governments. Non-Regulatory During Constructon Superseded by BC 14 Commitment is addressed by BC EAO Conditon 14 Public Engagement Summary Reports pursuant Engagement Commitment EAO to BC EAO Conditon 14 (Update No. 1 sec. 2.5.2) Commitment also addressed by SE&C Executon Enabling Plan (secton 4.3 pp 40-42). 3812 Stakeholder Jasper Park Chamber of Trans Mountain will provide advanced notfcaton about constructon and workforce loading to the Non-Regulatory Prior to Constructon Superseded by NEB 49 Commitment will be addressed by the Communicatons and Notfcatons Plan (CNP) that will be Engagement Commerce Jasper Chamber of Commerce. Commitment Conditon included in the next Conditon 49 Technical Working Group (TWG) update in April 2021. 3814 Stakeholder City of Abbotsford Trans Mountain will provide City of Abbotsford with copy of communicaton and notfcaton plan for Non-Regulatory Prior to Constructon Superseded by NEB 49 Commitment is addressed by Conditon 49 (Technical Working Group Meetngs) Most recent Report Engagement Sandy Hill neighbourhood when available. Commitment Conditon Update No. 7 fled on October 9, 2020 (A7J2Q1 Table 2 pp 2). 3905 Stakeholder NEB Trans Mountain commits to fling an updated summary of its consultaton with Strathcona Industrial NEB Cond IR No. During Constructon In Progress Consultaton with appropriate government authorites, potentally efected landowners/tenants is Engagement Associaton (SIA), Alberta Environment and Parks (AEP) and Alberta Capital Air Shed (ACA), and any 32.3 underway. Once consultaton is complete, Trans Mountain will meet this commitment by providing other interested partes, on technical details with respect to sitng, data collecton, reportng and the Consultaton Summary to the interested partes. Antcipated completon is Q2 2021. availability of data for the Edmonton Terminal as and when it becomes available. 4002 Stakeholder NEB Trans Mountain commits to fling an updated summary of its consultaton with the Appropriate NEB Cond IR No. During Constructon In Progress Commitment will be addressed when Trans Mountain shares the Consultaton Summary with Engagement Government Authorites, and potentally afected landowners/tenants, on all ambient monitoring 32.4 Appropriate Government Authorites and potentally efected landowners/tenants, antcipated to be requirements, including the locaton of monitoring statons. in Q2 2021. 4006 Stakeholder City of Kamloops Prior to Constructon, Trans Mountain will arrange procurement open houses or workshops at City of Kamloops No. Prior to Constructon Superseded by BC 14 Commitment is addressed by BC EAO Conditon 14 Public Engagement Summary Reports pursuant Engagement various local and regional locatons in Spread 5A, to present potental supply opportunites to the 2.11 EAO to BC EAO Conditon 14 (Update No 2 sec 2.3.4 and sec 2.3.7, table 11.) Commitment also addressed project. by Conditon 107 (A7L8I2 secton 7.2 pp 20-21). 4007 Stakeholder City of Kamloops Prior to Constructon, Trans Mountain will arrange procurement open houses or workshops at City of Kamloops No. Prior to Constructon Superseded by BC 14 Commitment is addressed by BC EAO Conditon 14 Engagement Summary Report (Update No 2 sec Engagement various local and regional locatons in Spread 5B, to present potental supply opportunites to the 2.11 EAO 2.3.4 and sec 2.3.7, table 11). Commitment also addressed in Conditon 107 (A7L8I2 secton 7.2 pp project. 20-21).

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4008 Stakeholder City of Kamloops Prior to Constructon, Trans Mountain will arrange procurement open houses or workshops at City of Kamloops No. Prior to Constructon Complete Commitment met by hostng Fraser Valley Business Readiness Virtual Event on September 29, 2020. Engagement various local and regional locatons in Spread 6, to present potental supply opportunites to the 2.11 Commitment will be addressed in the next BC EAO C14 engagement summary report update fled in project. October 2021. 4023 Stakeholder NEB Trans Mountain will document Community Readiness Engagement in a consultaton update which NEB IR No. 1.16a During Constructon Superseded by BC 14 Commitment is addressed by BC EAO Conditon 14 Public Engagement Summary Reports pursuant Engagement will be submited to the Natonal Energy Board (NEB). EAO to BC EAO Conditon 14 (October 2020 - secton 2.3.4 pg. 14). 83 Supply Chain NEB Environmental requirements will be incorporated into and contract documents related to the Applicaton Volume Prior to Constructon Complete TMEP major contracts incorporate an Owner's Requirement exhibit which includes an Management Project. 6A, 2-1. Environmental Requirements module. 440 Supply Chain Ken Klakowich, Robyn Allan As included in the Applicaton, Volume 5B, Secton 7.0: Socio-Economic Efects Assessment, page 191 Allan R IR No. 1.15 Project Lifecycle Superseded by NEB 107 Trans Mountain has incorporated its Indigenous, Local and Regional Inclusion Plan in TMEP major Management the Project is commited to maximize the use of local, regional, Aboriginal, provincial and Canadian bb, Klakowich K IR Conditon contracts. Associated employment and business opportunity monitoring reports are being fled businesses during the constructon and operaton of the Project. No. 1.4.0, Klakowich pursuant to Conditon 107. K IR No. 1.4.3 441 Supply Chain Ermineskin Cree Naton, Trans Mountain will require all contractors to comply with Environmental health and safety policies Natons IR No. During Constructon Complete TMEP major contracts incorporate an Owner's Requirement exhibit which includes Health and Management Kelly Lake Cree Naton, and procedures that will form part of the Project constructon contracts. 1.3.6d Safety Requirements and Environmental Requirements modules. Samson Cree Naton, Sucker Creek First Naton, Whitefsh (Goodfsh) Lake First Naton #128 442 Supply Chain Ermineskin Cree Naton, With respect to sole source and/or preferred source contracts, Trans Mountain will utlize direct Natons IR No. During Constructon In Progress The subject Aboriginal Procurement Policy has been fnalized and is actvely being followed, with an Management Kelly Lake Cree Naton, awards, limited compettve bidding and inclusion of Aboriginal content as stated in the Trans 1.1.5p Indigenous, Local and Regional Inclusion Plan incorporated in TMEP major contracts. Samson Cree Naton, Sucker Mountain Aboriginal Procurement Policy (Volume 3B, Appendix G). Creek First Naton, Whitefsh (Goodfsh) Lake First Naton #128 447 Supply Chain NEB To ensure that procurement opportunites will be accessible for Aboriginal communites and Applicaton Volume Prior to Constructon Complete The subject Aboriginal Procurement Policy has been fnalized and is actvely being followed, with an Management businesses, Trans Mountain has developed, an Aboriginal Procurement Policy. The policy provides 3B, secton 1.4.2. Indigenous, Local and Regional Inclusion Plan incorporated in TMEP major contracts. guidance and allowances for facilitatng Aboriginal partcipaton in the Project. Once fnalized, the content will be used in conjuncton with the procurement and workforce development opportunites, and a plan will be created with interested communites for the realizaton of employment benefts with both Trans Mountain and prime contractors during the Project. 448 Supply Chain NEB Trans Mountain is commited to carrying out enhancement measures that will maximize the levels of Applicaton Volume Prior to Constructon Complete Trans Mountain has incorporated its Indigenous, Local and Regional Inclusion Plan in TMEP major Management local partcipaton in Project opportunites through procurement strategies. 5B, 7-53. contracts. 450 Supply Chain NEB Trans Mountain will develop a Project-specifc procurement policy 6 months prior to start of NEB IR No. 1.25a Prior to Constructon Complete TMEP major contracts incorporate an Owner's Requirements exhibit that includes a Procurement Management constructon. Requirement module. 452 Supply Chain NEB Trans Mountain will purchase Project-required goods and services from regional, Alberta and BC Applicaton Volume Project Lifecycle Complete Trans Mountain has incorporated its Indigenous, Local and Regional Inclusion Plan in TMEP major Management (Provincial) and Canadian suppliers, provided those suppliers meet the Project requirements on a 5B, 7-191. contracts. best overall value basis, with added consideraton for Aboriginal service providers. 1067 Supply Chain NEB Substaton work will be contracted to frms specializing in high voltage electrical facilites. In Alberta, Applicaton Volume Prior to Constructon Complete Completed. Contracts documents. Management the electrical utlites having jurisdicton will contract the work. In BC, Trans Mountain will contract 4B -45. the work. 1638 Supply Chain Sto:lo Collectve Trans Mountain will have security in place to reduce the risk of vandalism in and around work sites. Sto:lo Collectve Prior to Constructon Complete Cheam Enterprises and Securiguard have partnered to form Cheam Securiguard Group. Cheam First Management Trans Mountain welcomes the opportunity to learn about Sto:lo member security companies with Recommendaton Naton is a member naton of Sto:lo, and is partcipatng in TMEP security through the Cheam this capacity. It is currently planned that the Contractors selected to complete the work will be hiring #56 Securiguard partnership. or otherwise providing subcontractors to secure the work-site during and afer hours, including ofce complexes, equipment, etc. 1644 Supply Chain Sto:lo Collectve Trans Mountain is commited to contnued engagement with Sto:lo representatves to discuss Sto:lo Collectve Project Lifecycle In Progress Conditon 96 demonstrates our ongoing engagement with the Stó:lō Collectve on topics including Management opportunites related to employment. Recommendaton Procurement Opportunites. Commitment will be addressed by further engagement actvites to be #67 undertaken. Proof of completon will be the Records of engagement within Conditon 96. 1646 Supply Chain Sto:lo Collectve Trans Mountain will discuss the opportunity to develop community-specifc approaches to consult Sto:lo Collectve Prior to Constructon In Progress Management on, and share informaton related to the outcomes of the Aboriginal, local and regional employment Recommendaton and business opportunites monitoring. On the basis of this engagement, Trans Mountain will #69, #67 prepare and submit to the Sto:lo a plan for reportng Sto:lo-specifc employment and business opportunity monitoring outcomes. 1647 Supply Chain Sto:lo Collectve In additon to an agreement between Sto:lo and Trans Mountain to create a Project-specifc Sto:lo Collectve Prior to Constructon In Progress Management economic development strategy, Trans Mountain will engage directly with Sto:lo representatves Recommendaton during each Aboriginal, local and regional employment and business opportunites monitoring cycle. #70, #67 Trans Mountain will develop a summary of employment and business opportunites (based on the monitoring indicators) specifc to the Sto:lo communites. Trans Mountain will discuss each Sto:lo- specifc Aboriginal, local and regional employment and business opportunity monitoring outcome with Sto:lo representatves, as part of the mutually agreed upon engagement strategy, and identfy any new opportunites to further enhance employment or business opportunites for Sto:lo members. 1875 Supply Chain NEB Trans Mountain will work with Contractors to give frst consideraton to qualifed regional suppliers Applicaton Volume Prior to Constructon Complete Trans Mountain has incorporated its Indigenous, Local and Regional Inclusion Plan in TMEP major Management of goods and services, where practcal and in conformance with procurement policies. 5B, 7-191. contracts.

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1879 Supply Chain NEB Trans Mountain will incorporate a Line List and landowner commitments into the constructon NEB IR No. 1.14a, Prior to Constructon Complete Management contracts. Applicaton, Volume 3C and Volume 2, Secton 5.2 2627 Supply Chain NEB Trans Mountain will ensure all contracts, service agreements and materials that are not deemed Applicaton Volume Prior to Constructon Complete Trans Mountain has incorporated its Indigenous, Local and Regional Inclusion Plan in TMEP major Management critcal to sustain the Project will frst be sought from regional resources. 5B s. 7.2.7.6 p7-190 contracts. 3579 Supply Chain Ermineskin Cree Naton, Trans Mountain is commited to ‘make best eforts’ and will maximize procurement opportunites Natons IR No. Prior to Constructon Complete Trans Mountain has implemented an Aboriginal Procurement Policy , with an Indigenous, Local and Management Kelly Lake Cree Naton, with Aboriginal groups engaged with the Project. Trans Mountain will develop a Project-specifc 1.1.5e Regional Inclusion Plan incorporated in TMEP major contracts. Samson Cree Naton, Sucker Procurement Policy, which indicates that the Project is commited to maximize the use of local, Creek First Naton, regional, Aboriginal, provincial and Canadian businesses during the constructon and operaton of Whitefsh (Goodfsh) Lake the Project. First Naton #128 3581 Supply Chain Sto:lo Collectve Trans Mountain is commited to maximizing Aboriginal procurement opportunites with the Project. Sto:lo Collectve Project Lifecycle Scoping Conditon 96 demonstrates our ongoing engagement with the Stó:lō Collectve on topics including Management Trans Mountain is commited to contnued engagement with Sto:lo representatves to discuss Recommendaton Procurement Opportunites. Commitment will be addressed by further engagement actvites to be opportunites related to procurement. #67 undertaken. Proof of completon will be the Records of engagement within Conditon 96. 3589 Supply Chain Sto:lo Collectve Trans Mountain will have security in place to reduce the risk of vandalism in and around work sites. Sto:lo Collectve Prior to Constructon Complete Cheam Enterprises and Securiguard have partnered to form Cheam Securiguard Group. Cheam First Management Trans Mountain welcomes the opportunity to learn about Sto:lo member security companies with Recommendaton Naton is a member naton of Sto:lo, and is partcipatng in TMEP security through the Cheam this capacity. It is currently planned that the Contractors selected to complete the work will be hiring #56 Securiguard partnership. or otherwise providing subcontractors to secure the work-site during and afer hours, including ofce complexes, equipment, etc. 3590 Supply Chain Sto:lo Collectve Trans Mountain will have security in place to reduce the risk of vandalism in and around work sites. Sto:lo Collectve Project Lifecycle Complete Cheam Enterprises and Securiguard have partnered to form Cheam Securiguard Group. Cheam First Management Trans Mountain welcomes the opportunity to learn about Sto:lo member security companies with Recommendaton Naton is a member naton of Sto:lo, and is partcipatng in TMEP security through the Cheam this capacity. It is currently planned that the Contractors selected to complete the work will be hiring #56 Securiguard partnership. or otherwise providing subcontractors to secure the work-site during and afer hours, including ofce complexes, equipment, etc. 3992 Supply Chain NEB Trans Mountain will incorporate a Line List and landowner commitments into the constructon NEB IR No. 1.14a, Prior to Constructon Complete Management contracts for Spread 2. Applicaton, Volume 3C and Volume 2, Secton 5.2 3993 Supply Chain NEB Trans Mountain will incorporate a Line List and landowner commitments into the constructon NEB IR No. 1.14a, Prior to Constructon Complete Management contracts for Spread 3. Applicaton, Volume 3C and Volume 2, Secton 5.2 3994 Supply Chain NEB Trans Mountain will incorporate a Line List and landowner commitments into the constructon NEB IR No. 1.14a, Prior to Constructon Complete Management contracts for Spread 4. Applicaton, Volume 3C and Volume 2, Secton 5.2 3995 Supply Chain NEB Trans Mountain will incorporate a Line List and landowner commitments into the constructon NEB IR No. 1.14a, Prior to Constructon Complete Management contracts for Spread 5A. Applicaton, Volume 3C and Volume 2, Secton 5.2 3996 Supply Chain NEB Trans Mountain will incorporate a Line List and landowner commitments into the constructon NEB IR No. 1.14a, Prior to Constructon Complete Management contracts for Spread 5B. Applicaton, Volume 3C and Volume 2, Secton 5.2 3997 Supply Chain NEB Trans Mountain will incorporate a Line List and landowner commitments into the constructon NEB IR No. 1.14a, Prior to Constructon Complete Management contracts for Spread 6. Applicaton, Volume 3C and Volume 2, Secton 5.2 3998 Supply Chain NEB Trans Mountain will incorporate a Line List and landowner commitments into the constructon NEB IR No. 1.14a, Prior to Constructon Complete Management contracts for Spread 7. Applicaton, Volume 3C and Volume 2, Secton 5.2

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