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UNITED STATES ENVIRONMENTAL PROTECTION AGENCY WASHINGTON D.C., 20460 OFFICE OF CHEMICAL SAFETY AND POLLUTION PREVENTION

MEMORANDUM

DATE: September 30, 2019

SUBJECT: Instructions for Commenting on the and Ecological Risk Mitigation Proposal for 23 Chemicals and the Proposed Interim Registration Review Decisions (PIDs) for 5 Pyrethroids

FROM: Cathryn Britton Branch Chief, Risk Management and Implementation Branch V Pesticide Re-evaluation Division

TO: Pyrethroids and Pyrethrins Registration Review Dockets www.regulations.gov

Purpose of this notice: To inform the public where to access registration review documents and submit comments concerning the pyrethroids and pyrethrins. Table 1 lists the 23 registration review chemicals affected by this memorandum. EPA is requesting comment on the Pyrethroids and Pyrethrins Ecological Risk Mitigation Proposal for all the chemicals listed in Table 1.

Table 1. List of 23 chemicals affected by this notice Beta-cyfluthrin Gamma- Lambda-cyhalothrin , Alpha-cypermethrin, Zeta-cypermethrin D- Etofenprox1 Flumethrin Momfluorothrin Pyrethrins Tau-fluvalinate

What is being posted and where should comments be submitted? EPA is seeking public comments on a number of documents related to the registration review of the pyrethroids and pyrethrins, including the Pyrethroids and Pyrethrins Ecological Risk Mitigation Proposal for 23 Chemicals and the Proposed Interim Registration Review Decisions (PIDs) for cyphenothrin, flumethrin, imiprothrin, momfluorothrin, and tetramethrin. The Pyrethroids and Pyrethrins Ecological Risk Mitigation Proposal for 23 Chemicals represents the Agency’s proposed interim decision to address the potential ecological risks from the

1 is not a but is being included with the group because of its structurally similarly

1 of 4 use of the pyrethroids as a group and serves as the ecological risk mitigation component for each chemical- specific PID. The Pyrethroids and Pyrethrins Ecological Risk Mitigation Proposal for 23 Chemicals, all supporting documents, and documents that pertain to the pyrethroids group will be posted in the Special Docket for the Pyrethroids, Pyrethrins, and Synergists, EPA-HQ-OPP-2008-0331.

The chemical-specific PIDs for cyphenothrin, flumethrin, imiprothrin, momfluorothrin, and tetramethrin, which present the Agency’s proposed interim decisions pursuant to 40 CFR Sections 155.56 and 155.58, will be placed in the corresponding chemical’s registration review docket. Table 2 lists the documents currently being posted for public comment and where to submit comments.

Table 2. Documents Being Posted for Public Comment Where to access Name of documents being posted documents and submit comments Documents posted to the Special Docket Special Docket for Pyrethroids and Pyrethrins Ecological Risk Mitigation Proposal for 23 Pyrethroids, Pyrethrins, and Chemicals, dated September 30, 2019 Synergists

Joint Response from OPP’s Environmental Fate and Effects Division and EPA-HQ-OPP-2008-0331 Pesticide Re-evaluation Division to Comments on the Preliminary Risk Assessments for Pyrethroids and Pyrethrins , dated September 30, 2019 Biological and Economic Analysis Division (BEAD) Summary of Public Comments Related to Benefits of Pyrethroids Submitted in Response to the Preliminary Comparative Environmental Fate and Ecological Risk Assessment for the Registration Review of Eight Synthetic Pyrethroids and the Pyrethrins, dated September 18, 2019 Updated Ecological Incidents Search for the Pyrethroids and Pyrethrins, dated September 19, 2019 Alternatives Assessment for Synthetic Pyrethroid/ Insecticides as Wide Area Mosquito Adulticides in Support of Registration Review, dated November 26, 2018 Usage Characterization and Qualitative Overview of Agricultural Importance for Pyrethroids Insecticides for Selected Crops and Impacts of Potential Mitigation for Ecological Risks, dated September 25, 2019 Review of USDA’s Assessment of the Benefits of Pyrethroids, August 2, 2019 Review of Estimated Benefits of Pyrethroids in U.S. Agriculture from “The Value of Pyrethroids in U.S. Agriculture and Urban Settings” Prepared by AgInfomatics, LLC, dated August 7, 2019 Review of “Economic Benefits of Pyrethroids Insecticides for Select California Crops,” Report Prepared by ERA Economics for the Pyrethroids Working Group, dated August 2, 2019 Re-Evaluation of the FQPA Safety for the Pyrethroids: Updated Literature and CAPHRA Program Data Review, dated July 1, 2019 (known as the White Paper) Documents posted to individual chemical-specific dockets Cyphenothrin Proposed Interim Registration Review Decision EPA-HQ-OPP-2009-0842 Flumethrin Proposed Interim Registration Review Decision EPA-HQ-OPP-2011-0013 Imiprothrin Proposed Interim Registration Review Decision EPA-HQ-OPP-2011-0692 Momfluorothrin Proposed Interim Registration Review Decision EPA-HQ-OPP-2015-0752 Tetramethrin Proposed Interim Registration Review Decision EPA-HQ-OPP-2011-0907

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Next steps: After publication of the Pyrethroids and Pyrethrins Ecological Risk Mitigation Proposal for 23 Chemicals and the five chemical-specific PIDs, there will be a 60-day public comment period. EPA intends to issue PIDs for the remaining eighteen chemicals in the future. After consideration of public comments, EPA will consolidate the ecological risk mitigation measures and any human health risk mitigation from each chemical-specific PID into an Interim Registration Review Decision (ID) for each chemical, which will be announced in the Federal Register and posted in each individual chemical-specific docket. Table 3 below lists all of the affected dockets and the docket contacts for the 23 chemicals covered under this memorandum. All of the dockets listed in Table 3 will include these instructions and announce the availability of the documents listed in Table 2. Public comments should be submitted only to the dockets for which the documents have been posted.

Table 3. List of all dockets affected by this notice and docket contacts for registration review Chemical Docket Number Registration Review Contacts Special Docket for Pyrethroids, EPA-HQ-OPP-2008-0331 Moana Appleyard Pyrethrins, and Synergists 703-308-8175 [email protected] Bifenthrin EPA-HQ-OPP-2010-0384 Moana Appleyard 703 308-8175 [email protected] Cyfluthrin, beta-cyfluthrin EPA-HQ-OPP-2010-0684 Michelle Nolan 703-347-0258 [email protected] Gamma-cyhalothrin EPA-HQ-OPP-2010-0479 Wilhelmena Livingston 703-308-8025 [email protected] Lambda-cyhalothrin EPA-HQ-OPP-2010-0480 Wilhelmena Livingston 703-308-8025 [email protected] EPA-HQ-OPP-2012-0167 Susan Bartow Cypermethrin, alpha-cypermethrin, 703-603-0065 zeta-cypermethrin [email protected] Cyphenothrin EPA-HQ-OPP-2009-0842 Jonathan Williams 703-347-0670 [email protected] Deltamethrin EPA-HQ-OPP-2009-0637 Rachel Fletcher 703-347-0512 [email protected] D-phenothrin EPA-HQ-OPP-2011-0539 Patricia Biggio 703-347-0547 [email protected] Esfenvalerate EPA-HQ-OPP-2009-0301 Marianne Mannix 703-347-0275 [email protected] Etofenprox* EPA-HQ-OPP-2007-0804 Wilhelmena Livingston 703-308-8025 [email protected] Fenpropathrin EPA-HQ-OPP-2010-0422 Tiffany Green 703-347-0314 [email protected]

3 of 4 Chemical Docket Number Registration Review Contacts Flumethrin EPA-HQ-OPP-2011-0013 Rachel Fletcher 703-347-0512 [email protected] Imiprothrin EPA-HQ-OPP-2011-0692 Michelle Nolan 703-347-0258 [email protected] Momfluorothrin EPA-HQ-OPP-2015-0752 Andy Muench 703-347-8263 [email protected] Permethrin EPA-HQ-OPP-2011-0039 Ana Pinto 703-347-8421 [email protected] Prallethrin EPA-HQ-OPP-2011-1009 Wilhelmena Livingston 703-308-8025 [email protected] Pyrethrins EPA-HQ-OPP-2011-0885 Jordan Page 703-347-0467 [email protected] Tau-fluvalinate EPA-HQ-OPP-2010-0915 Linsey Walsh 703-347-8030 [email protected] Tefluthrin EPA-HQ-OPP-2012-0501 Carolyn Smith 703-347-8325 [email protected] Tetramethrin EPA-HQ-OPP-2011-0907 Nathan Sell 703-347-8020 [email protected] *not a pyrethroid, but included with the pyrethroids due to its structural similarity

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