The EPA Administrator, E. Scott Pruitt, signed the following notice on 4/30/2018, and EPA is submitting it for publication in the Federal Register (FR). While we have taken steps to ensure the accuracy of this Internet version of the rule, it is not the official version of the rule for purposes of compliance. Please refer to the official version in a forthcoming FR publication, which will appear on the Government Printing Office's FDSys website (http://gpo.gov/fdsys/search/home.action) and on Regulations.gov (http://www.regulations.gov) in Docket No. EPA-HQ-OAR-2017-0548. Once the official version of this document is published in the FR, this version will be removed from the Internet and replaced with a link to the official version. 6560-50-P

ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 81

[EPA-HQ-OAR-2017-0548; FRL- ]

RIN 2060-AT94

Additional Air Quality Designations for the 2015 National Ambient Air Quality Standards

AGENCY: Agency (EPA).

ACTION: Final Rule.

SUMMARY: This rule establishes initial air quality designations for certain areas in the United

States, including areas of Indian country, for the 2015 primary and secondary national ambient air quality standards (NAAQS) for ozone. On November 6, 2017, the Environmental Protection

Agency (EPA) designated about 85 percent of the country as attainment/unclassifiable and three counties as unclassifiable. In this action, the EPA is designating all remaining areas, except for eight counties in the San Antonio, Texas metropolitan area. Areas are being designated as either nonattainment, attainment/unclassifiable, or unclassifiable. Areas designated as nonattainment are also being classified by operation of law according to the severity of their air quality problems. The classification categories are Marginal, Moderate, Serious, Severe, and Extreme. In addition, five nonattainment areas in California are being voluntarily reclassified to a higher classification.

DATE: The effective date of this rule is [INSERT DATE 60 DAYS AFTER PUBLICATION

IN THE FEDERAL REGISTER].

ADDRESSES: The EPA has established a docket for this action under Docket ID NO. EPA-

HQ-OAR-2017-0548. All documents in the docket are listed in the index at http://www.regulations.gov. Although listed in the index, some information is not publicly available, i.e., Confidential Business Information or other information whose disclosure is restricted by statute. Certain other material, such as copyrighted material, is not placed on the

Internet and will be publicly available only in hard copy form. Publicly available docket materials are available either electronically in the docket or in hard copy at the EPA Docket

Center, EPA WJC West Building, Room 3334, 1301 Constitution Avenue, NW, Washington,

DC. The Public Reading Room is open from 8:30 a.m. to 4:30 p.m., Monday through Friday, excluding legal holidays. The telephone number for the Public Reading Room is (202) 566-1744, and the telephone number for the Office of Air and Radiation Docket and Information Center is

(202) 566-1742.

In addition, the EPA has established a Web site for this rulemaking at https://www.epa.gov/ozone-designations. The Web site includes the EPA’s final designations, as well as designation recommendation letters from states and tribes, the EPA’s 120-letters notifying the states whether EPA intends to modify the state’s recommendation, technical support documents, responses to comments and other related technical information.

FOR FURTHER INFORMATION CONTACT: Carla Oldham, Office of Air Quality

Planning and Standards, U.S. Environmental Protection Agency, Mail Code C539-04, Research

Triangle Park, N.C. 27711, phone number (919) 541-3347 or by email at: [email protected].

REGIONAL OFFICE CONTACTS:

Region I − Richard Burkhart, telephone (617) 918-1664, email at [email protected]. Page 2 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

Region II – Omar Hammad, telephone (212) 637-3347, email at [email protected].

Region III − Maria Pino, telephone (215) 814-2181, email at [email protected].

Region IV − Jane Spann, telephone (404) 562-9029, email at [email protected].

Region V – Kathleen D’Agostino, telephone (312) 886-1767, email at [email protected].

Region VI – Carrie Paige, telephone (214) 665-6521, email at [email protected].

Region VII − Lachala Kemp. telephone (913) 551-7214, email at [email protected].

Region VIII – Chris Dresser, telephone (303) 312-6385, email at [email protected].

Region IX – Ashley Graham, telephone (415) 972-3877, email at [email protected].

Region X – Karl Pepple, telephone (206) 553-1778, email at [email protected].

SUPPLEMENTARY INFORMATION:

The public may inspect the rule and state-specific technical support information at the following locations:

Regional Offices States

Dave Conroy, Chief, Air Programs Branch, Connecticut, Maine, Massachusetts, New EPA New England, 5 Post Office Square, Hampshire, Rhode Island, and Vermont. Suite 100, Boston, MA 02109–3912, (617) 918–1661.

Richard Ruvo, Chief, Air Programs Branch, New Jersey, New York, Puerto Rico, and EPA Region II, 290 Broadway, 25th Floor, Virgin Islands. New York, NY 10007–1866, (212) 637– 4014.

Maria A. Pino, Acting Associate Director, Delaware, District of Columbia, Maryland, Office of Air Program Planning, EPA Region Pennsylvania, Virginia, and West Virginia. III, 1650 Arch Street, Philadelphia, PA 19103– 2187, (215) 814–2181.

R. Scott Davis, Chief, Air Planning and Implementation Branch, EPA Region IV, Page 3 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

Sam Nunn Atlanta Federal Center, 61 Alabama, Florida, Georgia, Kentucky, Forsyth, Street, SW, 12th Floor, Atlanta, GA Mississippi, North Carolina, South Carolina, 30303, (404) 562–9127. and Tennessee.

John Mooney, Chief, Air Programs Branch, Illinois, Indiana, Michigan, Minnesota, Ohio, EPA Region V, 77 West Jackson Street, and Wisconsin. Chicago, IL 60604, (312) 886-6043.

Mary Stanton, Chief, State Implementation Arkansas, Louisiana, New Mexico, Section B, EPA Region VI, 1445 Ross Oklahoma, and Texas. Avenue, Dallas, TX 75202, (214) 665-8377.

Mike Jay, Chief, Air Programs Branch, EPA Iowa, Kansas, Missouri, and Nebraska. Region VII, 11201 Renner Blvd., Lenexa, KS 66129, (913) 551–7460.

Monica Morales, Air Program Director, EPA Colorado, Montana, North Dakota, South Region VIII, 1595 Wynkoop Street, Denver, Dakota, Utah, and Wyoming. CO 80202–1129, (303) 312–6936.

Laura Lawrence, Acting Chief, Air Planning American Samoa, Arizona, California, Guam, Office, EPA Region IX, 75 Hawthorne Street, Hawaii, Nevada, and Northern Mariana San Francisco, CA 94105, (415) 972–3407. Islands.

Debra Suzuki, Manager, State and Tribal Air Alaska, Idaho, Oregon, and Washington. Programs, EPA Region X, Office of Air, Waste, and Toxics, Mail Code OAQ-107, 1200 Sixth Avenue, Seattle, WA 98101, (206) 553-0985.

Table of Contents

The following is an outline of the preamble.

I. Preamble Glossary of Terms and Acronyms II. What is the purpose of this action? III. What is ozone and how is it formed? IV. What are the 2015 ozone NAAQS and the health and welfare concerns they address? V. What are the CAA requirements for air quality designations? VI. What is the chronology for this designations rule and what guidance did the EPA provide? VII. What air quality data has the EPA used to designate areas for the 2015 ozone NAAQS? VIII. What are the ozone air quality classifications? IX. What action is EPA taking to reclassify five California Nonattainment areas?

Page 4 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

X. How can states request that an area within 5 percent of the upper or lower limit of a classification threshold be reclassified? A. Five Percent Reclassifications to a Lower Classification B. Five Percent Reclassifications to a Higher Classification C. Timing of the 5 Percent Reclassifications XI. How do designations affect Indian country? XII. Where can I find information forming the basis for this rule and exchanges between the EPA, states, and tribes related to this rule? XIII. Environmental Justice Concerns XIV. Statutory and Executive Order Reviews A. Executive Order 12866: Regulatory Planning and Review and Executive Order 13563: Improving Regulations and Regulatory Review B. Executive Order 13771: Reducing Regulations and Controlling Regulatory Costs C. Paperwork Reduction Act D. Regulatory Flexibility Act E. Unfunded Mandates Reform Act F. Executive Order 13132: Federalism G. Executive Order 13175: Consultation and Coordination with Indian Tribal Governments H. Executive Order 13045: Protection of Children from Environmental Health and Safety Risks I. Executive Order 13211: Actions That Significantly Affect Energy Supply, Distribution, or Use J. National Technology Transfer and Advancement Act (NTTAA) K. Executive Order 12898: Federal Actions to Address Environmental Justice in Minority Populations and Low-Income Populations L. Congressional Review Act M. Judicial Review

I. Preamble Glossary of Terms and Acronyms

The following are abbreviations of terms used in the preamble.

APA Administrative Procedure Act CAA Clean Air Act CFR Code of Federal Regulations D.C. District of Columbia EPA Environmental Protection Agency FR Federal Register NAAQS National Ambient Air Quality Standards NOx Nitrogen Oxides NTTAA National Technology Transfer and Advancement Act PPM Parts per million RFA Regulatory Flexibility Act UMRA Unfunded Mandate Reform Act of 1995 Page 5 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

TAR Tribal Authority Rule U.S. U.S.C. United States Code VCS Voluntary Consensus Standards VOC Volatile Organic Compounds

II. What is the purpose of this action?

The purpose of this action is to announce and promulgate initial area designations for certain areas of the country with respect to the 2015 primary and secondary NAAQS for ozone, in accordance with the requirements of Clean Air Act (CAA) section 107(d). The EPA is designating areas as either nonattainment, attainment/unclassifiable, or unclassifiable. In addition, this action announces the classification for nonattainment areas, which occurs by operation of law at the time of designation and is based on the severity of each area’s ozone air quality problems. This action also reclassifies five areas in California to a higher classification.

The classification categories are Marginal, Moderate, Serious, Severe, and Extreme. The EPA established the air quality thresholds that define the classifications in a separate rule titled,

“Implementation of the 2015 National Ambient Air Quality Standards for Ozone: Nonattainment

Area Classifications Approach ” (Classifications Rule) (83 FR 10376; March 9, 2018).

The list of all areas being designated in this action appear in the regulatory tables included at the end of this final rule. These tables which will amend 40 CFR part 81, identify the designation and the classification for each nonattainment area.

In this action, the EPA is designating 51 areas as nonattainment. Consistent with the

EPA’s “Policy for Establishing Separate Air Quality Designations for Areas of Indian Country”

(December 20, 2011), the EPA is designating lands of the Pechanga Tribe and the Morongo

Page 6 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

1 Tribe in Southern California as separate nonattainment areas.0F Seven of the nonattainment areas are multi-state areas. The EPA is also designating one area as unclassifiable. The EPA is designating all the other areas addressed in this final action, including both state and tribal areas, as attainment/unclassifiable. With this action, the EPA has issued final designations for all areas of the country with the exception of eight counties in the San Antonio, Texas metropolitan area.

The EPA intends to issue final designations for these eight counties by July 17, 2018.

The EPA is basing the designations on the most recent 3 years of certified ozone air quality monitoring data and on an evaluation of factors to assess contributions to nonattainment in nearby areas. State areas designated as nonattainment are subject to planning and emission reduction requirements as specified in CAA part D. Requirements vary according to an area’s classification. On November 17, 2016, the EPA proposed an implementation rule to assist states in the development of state implementation plans for attaining the ozone standards (81 FR

81276). The EPA expects to finalize this rule as soon as possible after finalizing the nonattainment area designations for the 2015 ozone NAAQS.

III. What is ozone and how is it formed?

Ground-level ozone is a gas that is formed by the reaction of volatile organic compounds

(VOCs) and oxides of nitrogen (NOx) in the atmosphere in the presence of sunlight. These precursor emissions are emitted by many types of pollution sources, including power plants and industrial emissions sources, on-road and off-road motor vehicles and engines, and smaller sources, collectively referred to as area sources. Ozone is predominately a summertime air pollutant. However, high ozone concentrations have also been observed in cold months, where a

1 Designation guidance for the 2015 ozone NAAQS is available at https://www.epa.gov/ozone- designations/epa-guidance-area-designations-2015-ozone-naaqs. Page 7 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

few areas in the Western United States (U.S.) have experienced high levels of local VOC and

NOx emissions that have formed ozone when snow is on the ground and temperatures are near or below freezing. Ozone and ozone precursors can be transported to an area from sources in nearby areas or from sources located hundreds of miles away. For purposes of determining ozone nonattainment area boundaries, the CAA requires the EPA to include areas that contribute to nearby violations of the NAAQS.

IV. What are the 2015 ozone NAAQS and the health and welfare concerns they address?

On October 1, 2015, the EPA revised both the primary and secondary NAAQS for ozone to a level of 0.070 parts per million (ppm) (annual fourth-highest daily maximum 8-hour average

2 concentration, averaged over 3 years).1F The level of the ozone NAAQS previously set in 2008 is

0.75 ppm. The 2015 ozone NAAQS retain the same general form and averaging time as the 2008 ozone NAAQS.

The primary ozone standards provide protection for children, older adults, and people with asthma or other lung diseases, and other at-risk populations against an array of adverse health effects that include reduced lung function, increased respiratory symptoms and pulmonary inflammation; effects that contribute to emergency department visits or hospital admissions; and mortality. The secondary ozone standards protect against adverse effects to the public welfare, including those related to impacts on sensitive vegetation and forested .

V. What are the CAA requirements for air quality designations?

When the EPA promulgates a new or revised NAAQS, the EPA is required to designate all areas in the country as nonattainment, attainment, or unclassifiable, pursuant to section

2 See 80 FR 65296; October 26, 2015, for a detailed explanation of the calculation of the 3-year 8-hour average and 40 CFR part 50, Appendix U. Page 8 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

107(d)(1) of the CAA. Section 107(d)(1)(A)(i) of the CAA defines a nonattainment area as, “any area that does not meet (or that contributes to ambient air quality in a nearby area that does not meet) the national primary or secondary ambient air quality standard for the pollutant.” If an area meets either prong of this definition, states should recommend and the EPA is obligated to designate the area as “nonattainment.” CAA section 107(d)(1)(A)(ii) defines an attainment area as any area that does not meet the definition of nonattainment and that meets the NAAQS. CAA section 107(d)(1)(A)(iii) provides that any area that the EPA cannot designate on the basis of available information as meeting or not meeting the standards should be designated as

“unclassifiable.” Historically for ozone, the EPA has designated most areas that do not meet the definition of nonattainment as “unclassifiable/attainment.” This category includes areas that have air quality monitoring data meeting the NAAQS and areas that do not have monitors but for which the EPA has no evidence that the areas may be violating the NAAQS or contributing to a nearby violation. In the designations for the 2015 ozone NAAQS, the EPA has reversed the order of the label to be attainment/unclassifiable to better convey the definition of the designation category and so that the category is more easily distinguished from the separate unclassifiable category. In a few instances, based on circumstances where some monitoring data are available but are not sufficient for a determination that an area is or is not attaining the NAAQS, the EPA has designated an area as “unclassifiable.”

Section 107(d)(1)(B) of the CAA requires the EPA to issue initial area designations within 2 years of promulgating a new or revised NAAQS. However, if the Administrator has insufficient information to make these designations within that time frame, the EPA has the authority to extend the deadline for designation decisions by up to 1 additional year.

Page 9 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

By not later than 1 year after the promulgation of a new or revised NAAQS, each state governor is required to recommend air quality designations, including the appropriate boundaries for areas, to the EPA. (See CAA section 107(d)(1)(A).) The EPA reviews those state recommendations and is authorized to make any modifications the Administrator deems necessary. The statute does not define the term “necessary,” but the EPA interprets this to authorize the Administrator to modify designation recommendations that are inconsistent with the statutory language, including modification of recommended boundaries for nonattainment areas that are not supported by the facts or analysis. If the EPA intends to modify a state’s recommendation, section 107(d)(1)(B) of the CAA requires the EPA to notify the state of any such intended modifications not less than 120 days prior to the EPA’s promulgation of the final designation. These notifications are commonly known as the “120-day letters.” If the state does not agree with the EPA’s intended modification, the 120-day period provides an opportunity for the state to demonstrate to the EPA why it believes any modification proposed by the EPA is inappropriate. If a state fails to provide any recommendation for an area, in whole or in part, the

EPA must promulgate a designation that the Administrator deems appropriate.

The terms “contributes to” and “nearby” in the definition of a nonattainment area are not defined in the statute and the EPA has discretion to interpret these ambiguous terms, based on considerations such as the nature of a specific pollutant, the types of sources that may contribute to violations, the form of the relevant NAAQS, and any other relevant information. The EPA does not interpret the statute to require the agency to establish bright line tests or thresholds for

3 what constitutes “contribution” or “nearby” for purposes of designations. 2F

3 This view was confirmed in Catawba County v. EPA, 571 F.3d 20 (D.C. Cir. 2009). Page 10 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

Section 301(d) of the CAA authorizes the EPA to approve eligible Indian tribes to implement provisions of the CAA on Indian reservations and other areas within the tribes’ jurisdiction. The Tribal Authority Rule (TAR) (40 CFR Part 49), which implements section

301(d) of the CAA, sets forth the criteria and process for tribes to apply to the EPA for eligibility to administer CAA programs. The designations process contained in section 107(d) of the CAA is included among those provisions determined to be appropriate by the EPA for treatment of tribes in the same manner as states. Under the TAR, tribes generally are not subject to the same submission schedules imposed by the CAA on states. As authorized by the TAR, tribes may seek eligibility to submit designation recommendations to the EPA.

VI. What is the chronology for this designations rule and what guidance did the EPA provide?

On February 25, 2016, the EPA issued guidance for states and tribal agencies to use for purposes of making designation recommendations as required by CAA section 107(d)(1)(A).

(See February 25, 2016, memorandum from Janet G. McCabe, Acting Assistant Administrator, to Regional Administrators, Regions 1-10, titled, “Area Designations for the 2015 Ozone

National Ambient Air Quality Standards” (Designations Guidance)). The Designations Guidance provided the anticipated timeline for designations and identified important factors that the EPA recommended states and tribes consider in making their recommendations and that EPA intended to consider in promulgating designations. These factors include air quality data, emissions and emissions-related data, meteorological data, geography/topography, and jurisdictional boundaries. In the Designations Guidance, the EPA asked that states and tribes submit their designation recommendations, including appropriate area boundaries, to the EPA by October 1,

2016. The EPA had previously issued two guidance memoranda related to designating areas of Page 11 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

Indian country that also apply for designations for the 2015 ozone NAAQS. (See December 20,

2011, memorandum from Stephen D. Page, Director, Office of Air Quality Planning and

Standards, to Regional Air Directors, Regions I-X, titled, “Policy for Establishing Separate Air

Quality Designations for Areas of Indian Country,” and December 20, 2011, memorandum from

Stephen D. Page, Director, Office of Air Quality Planning and Standards, to Regional Air

Directors, Regions I-X, titled, “Guidance to Regions for Working with Tribes during the

National Ambient Air Quality Standards (NAAQS) Designations Process.”) In the Designation

Guidance, the EPA indicated the agency expected to complete the initial designations for the

2015 ozone NAAQS on a 2-year schedule, by October 1, 2017, consistent with CAA

107(d)(1)(B)(i).

4 On November 6, 2017, the EPA designated as attainment/unclassifiable 2,646 counties,3F including tribal lands within those counties, for which the states recommended a designation of attainment or attainment/unclassifiable. This represents about 85 percent of the counties in the

U.S. The EPA also designated a three-county area in Washington as unclassifiable as recommended by the state. Consistent with the EPA’s Tribal Designation Guidance, the EPA designated two areas of Indian country (Fond du Lac Band of Lake Superior Chippewa Indians and Forest County Potawatomi Community) as separate attainment/unclassifiable areas.

On December 4, 2017, a coalition of environmental and health organizations filed suit against the Administrator claiming that EPA failed to meet its mandatory obligation to designate

4 Any reference to “counties” in this action also includes non-county administrative or statistical areas that are comparable to counties. Louisiana parishes; the organized boroughs of Alaska; the District of Columbia; and the independent cities of the states of Virginia, Maryland, Missouri, and Nevada are equivalent to counties for administrative purposes. Alaska's Unorganized Borough is divided into 10 census areas that are statistically equivalent to counties. As of 2017, there are currently 3,142 counties and county-equivalents in the U.S. Page 12 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

all areas of the United States for the 2015 ozone NAAQS by October 1, 2017. American Lung

Association, et al v. Pruitt (N.D. Cal. No. 4:17-cv-06900). A coalition of 15n states also filed a similar suit on December 5, 2017. State of California v. Pruitt (N.D. Cal. No. 4:17-cv-06936).

The United States District Court for the Northern District of California court heard arguments on plaintiffs’ motions for summary judgment in both cases on February 22, 2018. In a March 12,

2018, order, the court granted the motions in part and ordered the EPA “to promulgate final designations for all areas of the country except for the eight undesignated counties composing the San Antonio area no later than April 30, 2018” and “to promulgate final designations for the

San Antonio area no later than 127 days from the date of this order.” The designation deadline for eight-county San Antonio area is July 17, 2018.

On or about December 22, 2017, the EPA sent 120-day letters to Governors and tribal leaders notifying them of the EPA’s preliminary response to their designation recommendations for all areas of the country not designated in the November 2017 action, with the exception of eight counties in the San Antonio metropolitan area. For the areas addressed in the 120-day letters, the EPA requested that states and tribes submit any additional information that they wanted the EPA to consider in making final designation decisions by February 28, 2018, including any certified 2017 air quality monitoring data.

Although not required by section 107(d)(2)(B) of the CAA, the EPA also provided a 30- day public comment period on the designation recommendations from states and tribes and the

EPA’s intended designations addressed in the 120-day letters to states and tribes. The EPA announced the public comment period in the Federal Register on January 5, 2018 (83 FR 651).

In that notice, the EPA indicated that the agency intended to complete the designations for the areas addressed in the responses to states and tribes by April 30, 2018. Page 13 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

State and tribal recommendations and the EPA’s preliminary responses are posted on

EPA’s Web site at https://www.epa.gov/ozone-designations and are available in the docket for the designations action. Comments from the states, tribes and the public, and EPA’s responses to significant comments, are also available in the docket in the individual technical support documents for specific areas and in a Response to Comments document.

VII. What air quality data has the EPA used to designate areas for the 2015 ozone

NAAQS?

The final ozone designations in this action are based primarily on air quality monitoring data from the years 2014-2016, which were the most recent data that states were required to certify at the time the EPA notified the states of its intended modifications to their recommendations. Under 40 CFR 58.16, states are required to report all monitored ozone air quality data and associated quality assurance data within 90 days after the end of each quarterly reporting period, and under 40 CFR part 58.15(a)(2) states are required to submit annual summary reports and a data certification letter to the EPA by May 1 for ozone air quality data collected in the previous calendar year. Thus, at the time of the 120-day letters, the most recent certification obligation was for air quality data from 2016. In the 120-day notification letters to states, the EPA indicated that in order for the EPA to consider air quality data for the period

2015-2017 in the final designation decisions for any area, a state must submit certified, quality assured 2015-2017 air quality monitoring data for the area to the EPA by February 28, 2018.

Several states chose to submit early certified air quality data for areas within their states. For those areas, the EPA is basing the final designation decisions on air quality data from 2015-2017.

VIII. What are the ozone air quality classifications?

Page 14 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

In accordance with CAA section 181(a)(1), each area designated as nonattainment for the ozone NAAQS is classified by operation of law at the same time as the area is designated by the EPA. Under Subpart 2 of part D of title I of the CAA, state planning and emissions control requirements for ozone are determined, in part, by a nonattainment area’s classification. The ozone nonattainment areas are classified based on the severity of their ozone levels (as determined based on the area’s “design value,” which represents air quality in the area for the

5 most recent 3 years).4F The possible classifications are Marginal, Moderate, Serious, Severe, and

Extreme. Nonattainment areas with a “lower” classification have ozone levels that are closer to the standard than areas with a “higher” classification. Areas in the lower classification levels have fewer and/or less stringent mandatory air quality planning and control requirements than those in higher classifications. On March 9, 2018 (83 FR 10376), the EPA published the

Classifications Rule that establishes how the statutory classifications will apply for the 2015 ozone NAAQS, including the air quality thresholds for each classification category. Each nonattainment area’s design value, based on the most recent 3 years of certified air quality monitoring data, is used to establish the classification for the area. See Table 1.

Table 1. Classification Thresholds for the 2015 Ozone NAAQS (0.070 ppm)

5 The air quality design value for the 8-hour ozone NAAQS is the 3-year average of the annual 4th highest daily maximum 8-hour average ozone concentration. See 40 CFR Part 50, Appendix U. Page 15 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

8-hour ozone design value Nonattainment Area Classification (ppm) Marginal from 0.071 up to* 0.081 Moderate from 0.081 up to* 0.093 Serious from 0.093 up to* 0.105 Severe-15 from 0.105 up to* 0.111 Severe-17 from 0.111 up to* 0.163 Extreme equal to or above 0.163 * but not including

The regulatory tables included at the end of this action, provide the classification for each designated nonattainment area for the 2015 ozone NAAQS based on the design value for the area and the classification thresholds established in the Classification Rule.

IX. What action is EPA taking to reclassify five California Nonattainment areas?

The CAA provides states with a mechanism for addressing nonattainment areas that may not be able to attain by the attainment date for their classification. Pursuant to CAA section

181(b)(3), a state may voluntarily request that the EPA reclassify a nonattainment area to a higher classification. The EPA may not deny and must approve any such voluntary reclassification requests. Once an area is reclassified to a higher classification, it becomes subject to the associated additional planning and control requirements for that higher classification, and must attain the standard no later than the maximum attainment date for that classification. Six nonattainment areas in California were granted voluntary reclassifications to a higher

Page 16 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

classification for both the 1997 and 2008 ozone NAAQS. For the 2008 ozone NAAQS, the EPA proposed to interpret the voluntary reclassification requests for the 1997 ozone NAAQS to also apply for the more stringent 2008 ozone NAAQS, unless the state expressly requested otherwise.

As part of the proposal for the Classifications Rule for the 2015 NAAQS, the EPA proposed to again apply previous voluntary reclassifications for potential nonattainment areas in California for the 2015 ozone NAAQS, unless the state of California explicitly requested otherwise in their

6 comments on that proposal (November 17, 2016; 81 FR 81285).5F These areas included Los

Angeles-South Coast Air Basin, San Joaquin Valley, Riverside County (Coachella Valley),

Sacramento Metro, Ventura County and Los Angeles-San Bernardino Counties (Western

Mojave) areas. The EPA believes this is an appropriate mechanism to address attainment planning for these California areas that were voluntarily reclassified for the 1997 ozone NAAQS and previously used this mechanism for the 2008 ozone NAAQS. The reclassifications will ensure that these areas will have an attainment date for the 2015 ozone NAAQS that is no earlier than the areas’ attainment date for the 2008 ozone NAAQS. The EPA proposed this approach in order to minimize the burden on the state of California to separately initiate the voluntary reclassification process again. Areas for which California declined voluntary reclassification would be classified at the time of designation for the 2015 ozone NAAQS based on the most recent 3 years of certified air quality monitoring data. In response to EPA’s proposal, California declined reclassification only for the Sacramento Metro area.

Consistent with the comments received from the state of California on the November

2016 proposal, the EPA is applying previous voluntary reclassifications for five of the six

6 Proposed rule, “Implementation of the 2015 National Ambient Air Quality Standards for Ozone: Nonattainment Area Classifications and State Implementation Plan Requirements.” Page 17 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

California areas originally proposed. The following areas are voluntarily reclassified to a higher classification for the 2015 ozone NAAQS: Ventura County, CA — Serious; Riverside County

(Coachella Valley), CA — Severe-15; Los Angeles-San Bernardino Counties (West Mojave

Desert), CA — Severe-15; Los Angeles-South Coast Air Basin, CA — Extreme; and San

Joaquin Valley, CA — Extreme. These classifications are reflected in the tables at the end of this final rule.

X. How can states request that an area within 5 percent of the upper or lower limit of a classification threshold be reclassified?

Under CAA section 181(a)(4), an ozone nonattainment area may be reclassified to a higher or lower classification (also known as a classification bump up or a bump down) “if an area classified under paragraph (1) (Table 1) would have been classified in another category if the design value in the area were 5 percent greater or 5 percent less than the level on which such classification was based.” That section also states that, “In making such adjustment, the

Administrator may consider the number of exceedances of the national primary ambient air quality standard for ozone in the area, the level of pollution transport between the area and other affected areas, including both intrastate and interstate transport, and the mix of sources and air pollutants in the area.”

As noted in the preamble to the rule designating and classifying areas following enactment of the CAA Amendments of 1990, the provisions of section 181(a)(4) grant the

Administrator broad discretion in making, or determining not to make, a reclassification. (See 56

FR 56698; November 6, 1991.) In that designation action, the EPA provided criteria to evaluate in determining whether it is appropriate to reclassify a particular area. Because CAA section

181(b)(3) provides that the EPA must grant any state request to reclassify an area to a higher Page 18 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

classification, the EPA focused these criteria primarily on how the EPA would assess requests for a lower classification. These criteria are:

Request by state: The EPA does not intend to exercise its authority to reclassify areas on the EPA's own initiative. Rather, the EPA intends to rely on the state to submit a request for a reclassification. A tribe may also submit such a request and, in the case of a multi-state nonattainment area, all affected states must submit the same reclassification request.

Discontinuity: A 5 percent reclassification must not result in an illogical or excessive discontinuity relative to surrounding areas. In particular, in light of the area-wide nature of ozone formation, a reclassification should not create a "donut hole" where an area of one classification is surrounded by areas of higher classification.

Attainment: Evidence should be available that the proposed area would be able to attain by the earlier date specified by the lower classification in the case of a reclassification downward.

Emissions reductions: Evidence should be available that the area would be very likely to achieve the appropriate total percent emission reduction necessary in order to attain in the shorter time period for a reclassification downward.

Trends: Near- and long-term trends in emissions and air quality should support a reclassification. Historical air quality data should indicate substantial air quality improvement for a reclassification downward. Growth projections and emission trends should support a reclassification downward. In addition, the EPA will consider whether vehicle miles traveled and other indicators of emissions are increasing at higher than normal rates.

Years of data: The same years of ozone air quality data used for the initial designation and classification should be used for reclassification requests. Page 19 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

For ozone areas designated in 1991, the EPA approved reclassifications when the area met the first requirement (a request by the state to EPA) and at least some of the other criteria, and did not violate any of the criteria (emissions reductions, trends, etc.). The EPA established the same method and criteria for the purpose of evaluating any reclassification requests under

CAA section 181(a)(4) for the 1997 and 2008 ozone NAAQS. The EPA intends to continue to use this same approach for purposes of evaluating any requests for a reclassification for the 2015 ozone NAAQS. For reclassifications downwards, states may only request a reclassification to the next lower classification, and air quality data from prior years cannot be used as justification to be reclassified to an even lower classification.

A. Five Percent Reclassifications to a Lower Classification

For an area to be eligible to be reclassified to a lower classification under section

181(a)(4), the area's design value must be within 5 percent of the upper limit for the next lower classification. For example, an area with a Moderate design value of no more than 0.085 ppm would be eligible to request a reclassification to Marginal because 0.085 ppm is 5 percent more than the upper limit of 0.081 ppm for the Marginal classification. Accordingly, areas with the following design values may be eligible to request a reclassification to the next lower classification: Moderate areas with a design value of 0.085 ppm or less; Serious areas with a design value of 0.097 ppm or less; Severe areas with a design value of 0.110 ppm or less; and for

Extreme areas with a design value of 0.171 ppm or less.

B. Five Percent Reclassifications to a Higher Classification

An ozone nonattainment area may also be reclassified under section 181(a)(4) to the next higher classification. As with 5 percent reclassifications to a lower classification, the EPA does Page 20 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

not intend to exercise its authority to reclassify areas to a higher classification on the EPA's own initiative. Rather, the EPA intends to rely on the state to submit a request for such a reclassification. Under this CAA provision, areas with the following design values are eligible to request a reclassification to the next higher classification: Marginal areas with a design value of

0.076 ppm or more; Moderate areas with a design value of 0.088 ppm or more; and Serious areas with a design value of 0.099 ppm or more. Note, as discussed Section IX of this preamble, under a separate CAA provision, a state may voluntarily request that the EPA reclassify a nonattainment area to a higher classification at any time and the EPA must approve the request.

C. Timing of the Five Percent Reclassifications

A Governor or eligible tribal governing body of any area that wishes to pursue a reclassification should submit all requests and supporting documentation to the EPA Regional

Office by [INSERT DATE 30 DAYS AFTER PUBLICATION IN THE FEDERAL

REGISTER]. This relatively short time frame is necessary because CAA section 181(a)(4) only authorizes the Administrator to make such reclassifications within 90 days after the initial classification. The EPA will make its decision by [INSERT 90 DAYS AFTER

PUBLICATION IN THE FEDERAL REGISTER].

XI. How do designations affect Indian country?

All state areas listed in the tables at the end of this document are designated as indicated, and include Indian country geographically located within such areas, except as otherwise noted.

Information pertaining to areas of Indian country in these tables is intended for CAA planning purposes only and is not an EPA determination of Indian country land status or any Indian Page 21 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

country boundary. The EPA lacks the authority to establish Indian country land status, and is making no determination of Indian country boundaries in the tables. Consistent with the EPA’s

Tribal Designation Guidance, and at the request of the tribes, the EPA is designating lands of the

7 Pechanga Tribe and the Morongo Tribe in Southern California as separate nonattainment areas.6F

For all other areas, the EPA is designating areas of Indian country along with the adjacent/surrounding state area(s). Where nonattainment areas include both Indian country and state land, coordinated planning will help ensure that the planning decisions made by the states and tribes complement each other and that the nonattainment area makes progress toward attainment and ultimately attains the 2015 ozone NAAQS.

XII. Where can I find information forming the basis for this rule and exchanges between the EPA, states, and tribes related to this rule?

Information providing the basis for this action are provided in the docket for this rulemaking. The applicable EPA guidance memoranda and copies of correspondence regarding this process between the EPA and the states, tribes, and other parties are available for review at the EPA Docket Center listed above in the addresses section of this document, and on the EPA’s ozone designation Web site at https://www.epa.gov/ozone-designations. State-specific information is available from the EPA Regional Offices at the addresses at the top of this

Preamble.

XIII. Environmental Justice Concerns

When the EPA establishes a new or revised NAAQS, the CAA requires the EPA to designate all areas of the U.S. as either nonattainment, attainment, or unclassifiable. This final

7 Designation guidance for the 2015 ozone NAAQS is available at https://www.epa.gov/ozone- designations/epa-guidance-area-designations-2015-ozone-naaqs. Page 22 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

action addresses designation determinations for the 2015 ozone NAAQS. In addition, nonattainment areas are being classified according to the severity of their ozone air quality problems. Area designations address environmental justice concerns by ensuring that the public is properly informed about the air quality in an area. In locations where air quality does not meet the NAAQS, the CAA requires relevant state authorities to initiate appropriate air quality management actions to ensure that all those residing, working, attending school, or otherwise present in those areas are protected, regardless of minority and economic status.

Page 23 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

XIV. Statutory and Executive Order Reviews

A. Executive Order 12866: Regulatory Planning and Review and Executive Order 13563:

Improving Regulation and Regulatory Review

This action is exempt from review by the Office of Management and Budget because it responds to the CAA requirement to promulgate air quality designations after promulgation of a new or revised NAAQS.

B. Executive Order 13771: Reducing Regulations and Controlling Regulatory Costs

This action is not an Executive Order 13771 regulatory action because actions such as air quality designations after promulgating a new revised NAAQS are exempt from review under

Executive Order 12866.

C. Paperwork Reduction Act (PRA)

This action does not impose an information collection burden under the PRA. This action fulfills the non-discretionary duty for the EPA to promulgate air quality designations after promulgation of a new or revised NAAQS and does not contain any information collection activities.

D. Regulatory Flexibility Act (RFA)

This designation action under CAA section 107(d) is not subject to the RFA. The RFA applies only to rules subject to notice-and-comment rulemaking requirements under the APA, 5

U.S.C. 553, or any other statute. Section 107(d)(2)(B) of the CAA explicitly provides that designations are exempt from the notice-and-comment provisions of the APA. In addition, designations under CAA section 107(d) are not among the list of actions that are subject to the notice-and-comment rulemaking requirements of CAA section 307(d).

Page 24 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

E. Unfunded Mandates Reform Act (UMRA)

This action does not contain any unfunded mandate as described in UMRA, 2 U.S.C.

1531–1538 and does not significantly or uniquely affect small governments. The action imposes no enforceable duty on any state, local or tribal governments or the private sector.

F. Executive Order 13132: Federalism

This action does not have federalism implications. It will not have substantial direct effects on the states, on the relationship between the national government and the states, or on the distribution of power and responsibilities among the various levels of government. The division of responsibility between the federal government and the states for purposes of implementing the NAAQS is established under the CAA.

G. Executive Order 13175: Consultation and Coordination with Indian Tribal Governments.

This action does not have tribal implications. It will neither impose substantial direct compliance costs on federally recognized tribal governments, nor preempt tribal law. The CAA provides for states and eligible tribes to develop plans to regulate emissions of air pollutants within their areas, as necessary, based on the designations. The TAR provides tribes the opportunity to apply for eligibility to develop and implement CAA programs, such as programs to attain and maintain the ozone NAAQS, but it leaves to the discretion of the tribe the decision of whether to apply to develop these programs and which programs, or appropriate elements of a program, the tribe will seek to adopt. This rule does not have a substantial direct effect on one or more Indian tribes.

Page 25 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

H. Executive Order 13045: Protection of Children from Environmental Health and Safety Risks

The EPA interprets Executive Order 13045 as applying to those regulatory actions that concern environmental health or safety risks that the EPA has reason to believe may disproportionately affect children, per the definition of “covered regulatory action” in section 2-202 of the Executive Order. This action is not subject to Executive Order 13045 because it does not establish an environmental standard intended to mitigate health or safety risks.

I. Executive Order 13211: Actions That Significantly Affect Energy Supply, Distribution or Use

This action is not subject to Executive Order 13211 because it is not a significant regulatory action under Executive Order 12866.

J. National Technology Transfer and Advancement Act (NTTAA)

This rulemaking does not involve technical standards.

K. Executive Order 12898: Federal Actions to Address Environmental Justice in Minority

Populations and Low-Income Populations

The EPA believes that this action does not have disproportionately high and adverse human health or environmental effects on minority populations, low-income populations and/or indigenous peoples, as specified in Executive Order 12898 (59 FR 7629, February 16, 1994).

The documentation for this determination is contained in Section XIII of this preamble,

“Environmental Justice Concerns.”

Page 26 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

L. Congressional Review Act (CRA)

This action is subject to the CRA, and the EPA will submit a rule report to each House of the Congress and to the Comptroller General of the U.S. This action is not a “major rule” as defined by 5 U.S.C. 804(2).

M. Judicial Review

Section 307(b)(1) of the CAA indicates which Federal Courts of Appeal have venue for petitions for review of final actions by the EPA. This section provides, in part, that petitions for review must be filed in the Court of Appeals for the District of Columbia Circuit for: (i) “any nationally applicable regulations promulgated, or final actions taken, by the Administrator,” or

(ii) when such action is locally or regionally applicable, “if such action is based on a determination of nationwide scope or effect and if in taking such action the Administrator finds and publishes that such action is based on such a determination.”

This rule that designates areas for the 2015 ozone NAAQS is “nationally applicable” within the meaning of CAA section 307(b)(1). This rule establishes designations for areas across the U.S. for the 2015 ozone NAAQS. At the core of this rulemaking is the EPA’s interpretation of the designation provisions in section 107(d)(1) of the CAA, and its application of that interpretation to areas across the country.

For the same reasons, the Administrator also is determining that the final designations are of nationwide scope and effect for the purposes of CAA section 307(b)(1). This is particularly appropriate because, in the report on the 1977 Amendments that revised section 307(b)(1) of the

CAA, Congress noted that the Administrator’s determination that an action is of “nationwide scope or effect” would be appropriate for any action that has a scope or effect beyond a single judicial circuit. H.R. Rep. No. 95-294 at 323, 324, reprinted in 1977 U.S.C.C.A.N. 1402-03. Page 27 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

27 of 109 – Air Quality Designations for the 2015 Ozone National Ambient Air Quality Standards – Round 2

Here, the scope and effect of this rulemaking extends to numerous judicial circuits since the designations apply to areas across the country. In these circumstances, CAA section 307(b)(1) and its legislative history calls for the Administrator to find the rule to be of “nationwide scope or effect” and for venue to be in the District of Columbia Circuit.

Thus, any petitions for review of final designations must be filed in the Court of Appeals for the District of Columbia Circuit within 60 days from the date final action is published in the

Federal Register.

List of Subjects in 40 CFR part 81

Environmental protection, Air pollution control, National parks, Wilderness areas.

______Dated:

______E. Scott Pruitt, Administrator.

Page 28 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

For the reasons set forth in the preamble, 40 CFR part 81 is amended as follows:

PART 81—DESIGNATIONS OF AREAS FOR AIR QUALITY PLANNING PURPOSES

1. The authority citation for part 81 continues to read as follows:

Authority: 42 U.S.C. 7401, et. seq.

Subpart C—Section 107 Attainment Status Designations

2. Section 81. 302 is amended by revising the table titled “Alaska—2015 8-Hour Ozone NAAQS

(Primary and Secondary)” to read as follows:

§81.302 Alaska.

*****

Alaska—2015 8-Hour Ozone NAAQS (Primary and Secondary) Designation Classification Designated area1 Date2 Type Date Type Aleutians East Borough 1/16/18 Attainment/Unclassifiable Aleutians West Census Area 1/16/18 Attainment/Unclassifiable Anchorage Municipality Attainment/Unclassifiable Bethel Census Area 1/16/18 Attainment/Unclassifiable Bristol Bay Borough 1/16/18 Attainment/Unclassifiable Denali Borough 1/16/18 Attainment/Unclassifiable Dillingham Census Area 1/16/18 Attainment/Unclassifiable Fairbanks North Star Borough 1/16/18 Attainment/Unclassifiable Haines Borough 1/16/18 Attainment/Unclassifiable Hoonah-Angoon Census Area 1/16/18 Attainment/Unclassifiable Juneau City and Borough 1/16/18 Attainment/Unclassifiable Kenai Peninsula Borough 1/16/18 Attainment/Unclassifiable Ketchikan Gateway Borough 1/16/18 Attainment/Unclassifiable Kodiak Island Borough 1/16/18 Attainment/Unclassifiable Kusilvak Census Area 1/16/18 Attainment/Unclassifiable Lake and Peninsula Borough 1/16/18 Attainment/Unclassifiable Matanuska-Susitna Borough Attainment/Unclassifiable Nome Census Area 1/16/18 Attainment/Unclassifiable North Slope Borough 1/16/18 Attainment/Unclassifiable Northwest Arctic Borough 1/16/18 Attainment/Unclassifiable Petersburg Borough 1/16/18 Attainment/Unclassifiable Prince of Wales-Hyder Census Area 1/16/18 Attainment/Unclassifiable Sitka City and Borough 1/16/18 Attainment/Unclassifiable Skagway Municipality 1/16/18 Attainment/Unclassifiable Southeast Fairbanks Census Area 1/16/18 Attainment/Unclassifiable Valdez-Cordova Census Area 1/16/18 Attainment/Unclassifiable

Page 29 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

Wrangell City and Borough 1/16/18 Attainment/Unclassifiable Yakutat City and Borough 1/16/18 Attainment/Unclassifiable Yukon-Koyukuk Census Area 1/16/18 Attainment/Unclassifiable 1Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the boundaries of any area of Indian country in this table, including any area of Indian country located in the larger designation area. The inclusion of any Indian country in the designation area is not a determination that the state has regulatory authority under the Clean Air Act for such Indian country. 2This date is [INSERT DATE 60 DAYS AFTER PUBLICATION IN THE FEDERAL REGISTER], unless otherwise noted.

* * * * *

3. Section 81. 303 is amended by revising the table titled “Arizona—2015 8-Hour Ozone NAAQS

(Primary and Secondary)” to read as follows:

§81.303 Arizona.

*****

Arizona— 2015 8-Hour Ozone NAAQS (Primary and Secondary) Designation Classification Designated area1 Date2 Type Date2 Type Phoenix-Mesa, AZ: Nonattainment Marginal Gila County (part) T2N, R12E (except that portion in Maricopa County); T3N, R12E (except that portion in Maricopa County); T4N, R12E (Sections 25 through 29 (except those portions in Maricopa County) and 33 through 36 (except those portions in Maricopa County)). Maricopa County (part) T1N, R1E (except that portion in Indian Country); T1N, R2E; T1N, R3E; T1N, R4E (except that portion in Indian Country); T1N, R5E (except that portion in Indian Country); T1N, R6E; T1N, R7E; T1N, R1W; T1N, R2W; T1N, R3W; T1N, R4W; T1N, R5W; T1N, R6W; T1N, R7W; T1N, R8W; T2N, R1E; T2N, R2E; T2N, R3E; T2N, R4E; T2N, R6E (except that portion in Indian Country); Page 30 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

T2N, R7E (except that portion in Indian Country); T2N, R8E; T2N, R9E; T2N, R10E; T2N, R11E; T2N, R12E (except that portion in Gila County); T2N, R13E (except that portion in Gila County); T2N, R1W; T2N, R2W; T2N, R3W; T2N, R4W; T2N, R5W; T2N, R6W; T2N, R7W T2N, R8W; T3N, R1E; T3N, R2E; T3N, R3E; T3N, R4E; T3N, R5E (except that portion in Indian Country); T3N, R6E (except that portion in Indian Country); T3N, R7E (except that portion in Indian Country); T3N, R8E; T3N, R9E; T3N, R10E (except that portion in Gila County); T3N, R11E (except that portion in Gila County); T3N, R12E (except that portion in Gila County); T3N, R1W; T3N, R2W T3N, R3W; T3N, R4W; T3N, R5W; T3N, R6W; T4N, R1E T4N, R2E; T4N, R3E; T4N, R4E; T4N, R5E; T4N, R6E (except that portion in Indian Country); T4N, R7E (except that portion in Indian Country); T4N, R8E T4N, R9E; T4N, R10E (except that portion in Gila County); T4N, R11E (except that portion in Gila County); T4N, R12E (except that portion in Gila County); T4N, R1W T4N, R2W; T4N, R3W; T4N, R4W; T4N, R5W; T4N, R6W T5N, R1E; T5N, R2E; T5N, R3E;T5N, R4E; T5N, R5E; T5N, R6E; T5N, R7E; T5N, R8E; T5N, R9E (except that portion in Gila County); T5N, R10E (except that portion in Gila County); T5N, R1W; T5N, R2W; T5N, R3W; T5N, R4W; T5N, R5W; T6N, R1E (except that portion in Yavapai County); T6N, R2E; Page 31 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

T6N, R3E; T6N, R4E; T6N, R5E; T6N, R6E; T6N, R7E; T6N, R8E; T6N, R9E (except that portion in Gila County); T6N, R10E (except that portion in Gila County); T6N, R1W (except that portion in Yavapai County); T6N, R2W; T6N, R3W; T6N, R4W; T6N, R5W; T7N, R1E (except that portion in Yavapai County); T7N, R2E (except that portion in Yavapai County); T7N, R3E; T7N, R4E; T7N, R5E; T7N, R6E; T7N, R7E; T7N, R8E; T7N, R9E (except that portion in Gila County); T7N, R1W (except that portion in Yavapai County); T7N, R2W (except that portion in Yavapai County); T8N, R2E (except that portion in Yavapai County); T8N, R3E (except that portion in Yavapai County); T8N, R4E (except that portion in Yavapai County); T8N, R5E (except that portion in Yavapai County); T8N, R6E (except that portion in Yavapai County); T8N, R7E (except that portion in Yavapai County); T8N, R8E (except that portion in Yavapai and Gila Counties); T8N, R9E (except that portion in Yavapai and Gila Counties); T1S, R1E (except that portion in Indian Country); T1S, R2E (except that portion in Pinal County and in Indian Country); T1S, R3E; T1S, R4E; T1S, R5E; T1S, R6E; T1S, R7E; T1S, R1W; T1S, R2W; T1S, R3W; T1S, R4W; T1S, R5W; T1S, R6W; T2S, R1E (except that portion in Indian Country); T2S, R5E; T2S, R6E; T2S, R7E; T2S, R1W; T2S, R2W; T2S, R3W; T2S, R4W; T2S, R5W; T3S, R1E; T3S, R1W; T3S, R2W; T3S, R3W; Page 32 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

T3S, R4W; T3S, R5W; T4S, R1E; T4S, R1W; T4S, R2W; T4S, R3W; T4S, R4W; T4S, R5W; T5S, R4W (Sections 1 through 22 and 27 through 34). Pinal County (part) T1N, R8E; T1N, R9E; T1N, R10E; T1S, R8E; T1S, R9E; T1S, R10E; T2S, R8E (Sections 1 through 10, 15 through 22, and 27 through 34); T2S, R9E (Sections 1 through 6); T2S, R10E (Sections 1 through 6); T3S, R7E (Sections 1 through 6, 11 through 14, 23 through 26, and 35 through 36); T3S, R8E (Sections 3 through 10, 15 through 22, and 27 through 34). Fort McDowell Yavapai Nation Gila River Indian Community of the Gila River Indian Reservation, Arizona Includes only non-contiguous areas of Indian country known as “parcels M & N”.3 Tohono O'odham Nation of Arizona Salt River Pima-Maricopa Indian Community of the Salt River Reservation Yuma, AZ Nonattainment Marginal Yuma County (part) That portion within Yuma County of the area described by the following: 1. Bounded on the north and west by the Arizona state line. 2. Bounded on the south by the line of latitude at 32° 39' 20"N. 3. Bounded on the east by the line of longitude 114° 33' 50"W. 4. And excluding the sections 10, 11, and 12 of township T9S, R23W and any portion in Indian Country. Cocopah Tribe of Arizona Quechan Tribe of the Fort Yuma Indian Reservation Page 33 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

Gila River Indian Community of the Attainment/Unclassifiable Gila River Indian Reservation, Arizona Includes the contiguous main body of the reservation, excluding non- contiguous areas of Indian country known as “parcels M & N”.3 Rest of State: Attainment/Unclassifiable Apache County 1/16/18 Cochise County 1/16/18 Coconino County Gila County (part) remainder Graham County Greenlee County 1/16/18 La Paz County Maricopa County (part) remainder Mohave County Navajo County Pima County Pinal County (part) remainder Santa Cruz County 1/16/18 Yavapai County Yuma County (part) remainder 1Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the boundaries of any area of Indian country in this table, including any area of Indian country located in the larger designation area. The inclusion of any Indian country in the designation area is not a determination that the state has regulatory authority under the Clean Air Act for such Indian country. 2This date is [INSERT DATE 60 DAYS AFTER PUBLICATION IN THE FEDERAL REGISTER], unless otherwise noted. 3See Section 3.0 of the EPA’s technical support document for Arizona, titled “Arizona Final Area Designations for the 2015 Ozone National Ambient Air Quality Standards Technical Support Document (TSD),” for more information and a map showing the locations of “parcels M & N” (available in Docket ID: EPA-HQ-OAR-2017-0548).

* * * * *

4. Section 81.305 is amended by revising the table titled “California—2015 8-Hour Ozone NAAQS

(Primary and Secondary)” to read as follows:

§81.305 California.

*****

California— 2015 8-Hour Ozone NAAQS (Primary and Secondary) Designation Classification Designated area1 Date2 Type Date2 Type Amador County, CA: Nonattainment Marginal Amador County Page 34 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

Buena Vista Rancheria of Me-Wuk Indians of California Jackson Band of Miwuk Indians Calaveras County, CA: Nonattainment Marginal Calaveras County California Valley Miwok Tribe Butte County, CA: Nonattainment Marginal Butte County Berry Creek Rancheria of Maidu Indians of California Enterprise Rancheria of Maidu Indians of California Mechoopda Indian Tribe of Chico Rancheria Mooretown Rancheria of Maidu Indians of California Imperial County, CA: Nonattainment Marginal Imperial County Quechan Tribe of the Fort Yuma Indian Reservation Torres Martinez Desert Cahuilla Indians Kern County (Eastern Kern), CA: Nonattainment Moderate Kern County (part) That portion of Kern County (with the exception of that portion in Hydrologic Unit Number 18090205 - the Indian Wells Valley) east and south of a line described as follows: Beginning at the Kern-Los Angeles County boundary and running north and east along the northwest boundary of the Rancho La Liebre Land Grant to the point of intersection with the range line common to Range 16 West and Range 17 West, San Bernardino Base and Meridian; north along the range line to the point of intersection with the Rancho El Tejon Land Grant boundary; then southeast, northeast, and northwest along the boundary of the Rancho El Tejon Grant to the northwest corner of Section 3, Township 11 North, Range 17 West; then Page 35 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

west 1.2 miles; then north to the Rancho El Tejon Land Grant boundary; then northwest along the Rancho El Tejon line to the southeast corner of Section 34, Township 32 South, Range 30 East, Mount Diablo Base and Meridian; then north to the northwest corner of Section 35, Township 31 South, Range 30 East; then northeast along the boundary of the Rancho El Tejon Land Grant to the southwest corner of Section 18, Township 31 South, Range 31 East; then east to the southeast corner of Section 13, Township 31 South, Range 31 East; then north along the range line common to Range 31 East and Range 32 East, Mount Diablo Base and Meridian, to the northwest corner of Section 6, Township 29 South, Range 32 East; then east to the southwest corner of Section 31, Township 28 South, Range 32 East; then north along the range line common to Range 31 East and Range 32 East to the northwest corner of Section 6, Township 28 South, Range 32 East, then west to the southeast corner of Section 36, Township 27 South, Range 31 East, then north along the range line common to Range 31 East and Range 32 East to the Kern-Tulare County boundary. Los Angeles-San Bernardino Counties Nonattainment Severe-15 (West Mojave Desert), CA: Los Angeles County (part) That portion of Los Angeles County which lies north and east of a line described as follows: Beginning at the Los Angeles-San Bernardino County boundary and running

Page 36 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

west along the Township line common to Township 3 North and Township 2 North, San Bernardino Base and Meridian; then north along the range line common to Range 8 West and Range 9 West; then west along the Township line common to Township 4 North and Township 3 North; then north along the range line common to Range 12 West and Range 13 West to the southeast corner of Section 12, Township 5 North and Range 13 West; then west along the south boundaries of Sections 12, 11, 10, 9, 8, and 7, Township 5 North and Range 13 West to the boundary of the Angeles National Forest which is collinear with the range line common to Range 13 West and Range 14 West; then north and west along the Angeles National Forest boundary to the point of intersection with the Township line common to Township 7 North and Township 6 North (point is at the northwest corner of Section 4 in Township 6 North and Range 14 West); then west along the Township line common to Township 7 North and Township 6 North; then north along the range line common to Range 15 West and Range 16 West to the southeast corner of Section 13, Township 7 North and Range 16 West; then along the south boundaries of Sections 13, 14, 15, 16, 17, and 18, Township 7 North and Range 16 West; then north along the range line common to Range 16 West and Range 17 West to the north boundary of the Angeles National Forest (collinear with the Township Page 37 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

line common to Township 8 North and Township 7 North); then west and north along the Angeles National Forest boundary to the point of intersection with the south boundary of the Rancho La Liebre Land Grant; then west and north along this land grant boundary to the Los Angeles- Kern County boundary. San Bernardino County (part) That portion of San Bernardino County which lies north and east of a line described as follows: Beginning at the San Bernardino-Riverside County boundary and running north along the range line common to Range 3 East and Range 2 East, San Bernardino Base and Meridian; then west along the Township line common to Township 3 North and Township 2 North to the San Bernardino-Los Angeles County boundary; and that portion of San Bernardino County which lies south and west of a line described as follows: latitude 35 degrees, 10 minutes north and longitude 115 degrees, 45 minutes west. Twenty-Nine Palms Band of Mission Indians of California Los Angeles-South Coast Air Basin, Nonattainment Extreme CA: Los Angeles County (part) That portion of Los Angeles County which lies south and west of a line described as follows: Beginning at the Los Angeles-San Bernardino County boundary and running west along the Township line common to Township 3 North and Township 2 North San Bernardino Base and Meridian;

Page 38 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

then north along the range line common to Range 8 West and Range 9 West; then west along the Township line common to Township 4 North and Township 3 North; then north along the range line common to Range 12 West and Range 13 West to the southeast corner of Section 12, Township 5 North and Range 13 West; then west along the south boundaries of Sections 12, 11, 10, 9, 8, and 7, Township 5 North and Range 13 West to the boundary of the Angeles National Forest which is collinear with the range line common to Range 13 West and Range 14 West; then north and west along the Angeles National Forest boundary to the point of intersection with the Township line common to Township 7 North and Township 6 North (point is at the northwest corner of Section 4 in Township 6 North and Range 14 West); then west along the Township line common to Township 7 North and Township 6 North; then north along the range line common to Range 15 West and Range 16 West to the southeast corner of Section 13, Township 7 North and Range 16 West; then along the south boundaries of Sections 13, 14, 15, 16, 17, and 18, Township 7 North and Range 16 West; then north along the range line common to Range 16 West and Range 17 West to the north boundary of the Angeles National Forest (collinear with the Township line common to Township 8 North and Township 7 North); then west and north along the Angeles National Forest Page 39 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

boundary to the point of intersection with the south boundary of the Rancho La Liebre Land Grant; then west and north along this land grant boundary to the Los Angeles- Kern County boundary. Orange County Riverside County (part) That portion of Riverside County which lies to the west of a line described as follows: Beginning at the Riverside-San Diego County boundary and running north along the range line common to Range 4 East and Range 3 East, San Bernardino Base and Meridian; then east along the Township line common to Township 8 South and Township 7 South; then north along the range line common to Range 5 East and Range 4 East; then west along the southern boundaries of Sections 25, 26, and 27, Township 7 South, Range 4 East, then North along the west boundaries of Sections 27, 22, 15, 10, and 3 Township 7 South, Range 4 East, then East along the Township line common to Township 6 South and Township 7 South to the southwest corner of Section 34, Township 6 South, Range 4 East; then north along the west boundaries of Sections 34, 27, 22, 15, 10, and 3, Township 6 South, Range 4 East; then west along the Township line common to Township 5 South and Township 6 South; then north along the range line common to Range 4 East and Range 3 East; then west along the south boundaries of Sections 13, 14, 15, 16, 17, and

Page 40 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

18, Township 5 South, Range 3 East; then north along the range line common to Range 2 East and Range 3 East; to the Riverside-San Bernardino County line. San Bernardino County (part) That portion of San Bernardino County which lies south and west of a line described as follows: Beginning at the San Bernardino-Riverside County boundary and running north along the range line common to Range 3 East and Range 2 East, San Bernardino Base and Meridian; then west along the Township line common to Township 3 North and Township 2 North to the San Bernardino-Los Angeles County boundary. Cahuilla Band of Indians Pechanga Band of Luiseno Mission Indians of the Pechanga Reservation Includes only non-contiguous tribal lands known as the Meadowbrook parcel.3 Ramona Band of Cahuilla San Manuel Band of Mission Indians Soboba Band of Luiseno Indians Mariposa County, CA: Nonattainment Marginal Mariposa County Nevada County (Western part), CA: Nonattainment Moderate Nevada County (part) That portion of Nevada County, which lies west of a line, described as follows: Beginning at the Nevada-Placer County boundary and running north along the western boundaries of Sections 24, 13, 12, 1, Township 17 North, Range 14 East, Mount Diablo Base and Meridian, and Sections 36, 25, 24, 13, 12, Township 18 North, Page 41 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

Range 14 East to the Nevada- Sierra County boundary. Riverside County (Coachella Valley), Nonattainment Severe-15 CA: Riverside County (part) That portion of Riverside County which lies to the east of a line described as follows: Beginning at the Riverside-San Diego County boundary and running north along the range line common to Range 4 East and Range 3 East, San Bernardino Base and Meridian; then east along the Township line common to Township 8 South and Township 7 South; then north along the range line common to Range 5 East and Range 4 East; then west along the Township line common to Township 6 South and Township 7 South to the southwest corner of Section 34, Township 6 South, Range 4 East; then north along the west boundaries of Sections 34, 27, 22, 15, 10, and 3, Township 6 South, Range 4 East; then west along the Township line common to Township 5 South and Township 6 South; then north along the range line common to Range 4 East and Range 3 East; then west along the south boundaries of Sections 13, 14, 15, 16, 17, and 18, Township 5 South, Range 3 East; then north along the range line common to Range 2 East and Range 3 East; to the Riverside-San Bernardino County line. And that portion of Riverside County which lies to the west of a line described as follows: That segment of the southwestern boundary line of hydrologic Unit Number

Page 42 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

18100100 within Riverside County. Agua Caliente Band of Cahuilla Indians of the Agua Caliente Indian Reservation Augustine Band of Cahuilla Indians Cabazon Band of Mission Indians Santa Rosa Band of Cahuilla Indians Torres Martinez Desert Cahuilla Indians Twenty-Nine Palms Band of Mission Indians of California Sacramento Metro, CA: Nonattainment Moderate El Dorado County (part) All portions of the county except that portion of El Dorado County within the drainage area naturally tributary to Lake Tahoe including said Lake. Placer County (part) All portions of the county except that portion of Placer County within the drainage area naturally tributary to Lake Tahoe including said Lake, plus that area in the vicinity of the head of the Truckee River described as follows: Commencing at the point common to the aforementioned drainage area crestline and the line common to Townships 15 North and 16 North, Mount Diablo Base and Meridian, and following that line in a westerly direction to the northwest corner of Section 3, Township 15 North, Range 16 East Mount Diablo Base and Meridian, thence south along the west line of Sections 3 and 10, Township 15 North, Range 16 East, Mount Diablo Base and Meridian, to the intersection with the said drainage area crestline, thence following the said drainage area boundary in a Page 43 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

southeasterly, then northeasterly direction to and along the Lake Tahoe Dam, thence following the said drainage area crestline in a northeasterly, then northwesterly direction to the point of beginning. Sacramento County Solano County (part) That portion of Solano County which lies north and east of a line described as follows: Beginning at the intersection of the westerly boundary of Solano County and the 1/4 section line running east and west through the center of Section 34; Township 6 North, Range 2 West, Mount Diablo Base and Meridian, thence east along said 1/4 section line to the east boundary of Section 36, Township 6 North, Range 2 West, thence south 1/2 mile and east 2.0 miles, more or less, along the west and south boundary of Los Putos Rancho to the northwest corner of Section 4, Township 5 North, Range 1 West, thence east along a line common to Township 5 North and Township 6 North to the northeast corner of Section 3, Township 5 North, Range 1 East, thence south along section lines to the southeast corner of Section 10, Township 3 North, Range 1 East, thence east along section lines to the south 1/4 corner of Section 8, Township 3 North, Range 2 East, thence east to the boundary between Solano and Sacramento Counties. Sutter County (part) Portion south of a line connecting the northern border

Page 44 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

of Yolo County to the SW tip of Yuba County and continuing along the southern Yuba County border to Placer County. Yolo County Shingle Springs Band of Miwok Indians, Shingle Springs Rancheria United Auburn Indian Community of the Auburn Rancheria of California Wilton Rancheria Yocha Dehe Wintun Nation San Diego County, CA: Nonattainment Moderate San Diego County Barona Group of Capitan Grande of Mission Indians of the Barona Reservation Campo Band of Diegueno Mission Indians of the Campo Indian Reservation Capitan Grande Band of Diegueno Mission Indians of California Ewiiaapaayp Band of Kumeyaay Indians Iipay Nation of Santa Ysabel Inaja Band of Diegueno Mission Indians of the Inaja and Cosmit Reservation Jamul Indian Village of California La Jolla Band of Luiseno Indians La Posta Band of Diegueno Mission Indians of the La Posta Indian Reservation Los Coyotes Band of Cahuilla and Cupeno Indians Manzanita Band of Diegueno Mission Indians of the Manzanita Reservation Mesa Grande Band of Diegueno Mission Indians of the Mesa Grande Reservation Pala Band of Mission Indians Pauma Band of Luiseno Mission Indians of the Pauma and Yuima Reservation Rincon Band of Luiseno Mission Indians of the Rincon Reservation Page 45 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

San Pasqual Band of Diegueno Mission Indians of California Sycuan Band of the Kumeyaay Nation Viejas (Baron Long) Group of Capitan Grande Band of Mission Indians of the Viejas Reservation San Francisco Bay Area, CA: Nonattainment Marginal Alameda County Contra Costa County Marin County Napa County San Francisco County San Mateo County Santa Clara County Solano County (part) Portion of Solano County which lies south and west of a line described as follows: Beginning at the intersection of the westerly boundary of Solano County and the 1/4 section line running east and west through the center of Section 34, T6N, R2W, M.D.B. & M., thence east along said 1/4 section line to the east boundary of Section 36, T6N, R2W, thence south 1/2 mile and east 2.0 miles, more or less, along the west and south boundary of Los Putos Rancho to the northwest corner of Section 4, T5N, R1W, thence east along a line common to T5N and T6N to the northeast corner of Section 3, T5N, R1E, thence south along section lines to the southeast corner of Section 10, T3N, R1E, thence east along section lines to the south 1/4 corner of Section 8, T3N, R2E, thence east to the boundary between Solano and Sacramento Counties. Sonoma County (part) That portion of Sonoma County which lies south and east of a line described as follows: Page 46 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

Beginning at the southeasterly corner of the Rancho Estero Americano, being on the boundary line between Marin and Sonoma Counties, California; thence running northerly along the easterly boundary line of said Rancho Estero Americano to the northeasterly corner thereof, being an angle corner in the westerly boundary line of Rancho Canada de Jonive; thence running along said boundary of Rancho Canada de Jonive westerly, northerly and easterly to its intersection with the easterly line of Graton Road; thence running along the easterly and southerly line of Graton Road, northerly and easterly to its intersection with the easterly line of Sullivan Road; thence running northerly along said easterly line of Sullivan Road to the southerly line of Green Valley Road; thence running easterly along the said southerly line of Green Valley Road and easterly along the southerly line of State Highway 116, to the westerly line of Vine Hill Road; thence Running along the westerly and northerly line of Vine Hill Road, northerly and easterly to its intersection with the westerly line of Laguna Road; thence running northerly along the westerly line of Laguna Road and the northerly projection thereof to the northerly line of Trenton Road; thence running westerly along the northerly line of said Trenton Road to the easterly line of Trenton-Healdsburg Road; thence running northerly along said easterly line of Page 47 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

Trenton-Healdsburg Road to the easterly line of Eastside Road; thence running northerly along said easterly line of Eastside Road to its intersection with the southerly line of Rancho Sotoyome; thence running easterly along said southerly line of Rancho Sotoyome to its intersection with the Township line common to Townships 8 and 9 North, M.D.M.; thence running easterly along said township line to its intersection with the boundary line between Sonoma and Napa Counties. Federated Indians of Graton Rancheria Lytton Rancheria of California San Joaquin Valley, CA: Nonattainment Extreme Fresno County Kern County (part) That portion of Kern County which lies west and north of a line described as follows: Beginning at the Kern-Los Angeles County boundary and running north and east along the northwest boundary of the Rancho La Libre Land Grant to the point of intersection with the range line common to R. 16 W. and R. 17 W., San Bernardino Base and Meridian; north along the range line to the point of intersection with the Rancho El Tejon Land Grant boundary; then southeast, northeast, and northwest along the boundary of the Rancho El Tejon Land Grant to the northwest corner of S. 3, T. 11 N., R. 17 W.; then west 1.2 miles; then north to the Rancho El Tejon Land Grant boundary; then northwest along the Rancho El Tejon line to the southeast corner of S. 34, T. 32

Page 48 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

S., R. 30 E., Mount Diablo Base and Meridian; then north to the northwest corner of S. 35, T. 31 S., R. 30 E.; then northeast along the boundary of the Rancho El Tejon Land Grant to the southwest corner of S. 18, T. 31 S., R. 31 E.; then east to the southeast corner of S. 13, T. 31 S., R. 31 E.; then north along the range line common to R. 31 E. and R. 32 E., Mount Diablo Base and Meridian, to the northwest corner of S. 6, T. 29 S., R. 32 E.; then east to the southwest corner of S. 31, T. 28 S., R. 32 E.; then north along the range line common to R. 31 E. and R. 32 E. to the northwest corner of S. 6, T. 28 S., R. 32 E., then west to the southeast corner of S. 36, T. 27 S., R. 31 E., then north along the range line common to R. 31 E. and R. 32 E. to the Kern-Tulare County boundary. Kings County Madera County Merced County San Joaquin County Stanislaus County Tulare County Big Sandy Rancheria of Western Mono Indians of California Cold Springs Rancheria of Mono Indians of California Northfork Rancheria of Mono Indians of California Picayune Rancheria of Chukchansi Indians of California Santa Rosa Indian Community of the Santa Rosa Rancheria Table Mountain Rancheria of California Tule River Indian Tribe of the Tule River Reservation San Luis Obispo (Eastern part), CA: Nonattainment Marginal San Luis Obispo County (part) Page 49 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

That portion of San Luis Obispo County that lies east of a line described as follows: Beginning at the San Luis Obispo County/Santa Barbara County boundary and running north along 120 degrees 24 minutes longitude to the intersection with 35 degrees 27 minutes latitude; east along 35 degrees 27 minutes latitude to the intersection with 120 degrees 18 minutes longitude; then north along 120 degrees 18 minutes longitude to the San Luis Obispo County/Monterey County boundary. Sutter Buttes, CA: Nonattainment Marginal Sutter County (part) That portion of the Sutter Buttes mountain range at or above 2,000 feet in elevation. Tuolumne County, CA: Nonattainment Marginal Tuolumne County Chicken Ranch Rancheria of Me- Wuk Indians of California Tuolumne Band of Me-Wuk Indians of the Tuolumne Rancheria of California Tuscan Buttes, CA: Nonattainment Marginal Tehama County (part) Those portions of the immediate Tuscan Buttes area at or above 1,800 feet in elevation. Ventura County, CA: Nonattainment Serious Ventura County (part) That part of Ventura County excluding the Channel Islands of Anacapa and San Nicolas Islands. Morongo Band of Mission Indians4 Nonattainment Serious Pechanga Band of Luiseno Mission Nonattainment Marginal Indians of the Pechanga Reservation Includes the main body of the contiguous Pechanga Band Reservation and the noncontiguous area known as Puyeska Mountain, Page 50 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

excluding non-contiguous tribal lands in the Los Angeles-South Coast Air Basin, CA (Meadowbrook parcel).3 Rest of State: Colusa County Attainment/Unclassifiable Eastern Nevada County Attainment/Unclassifiable Nevada County (part) remainder Eastern Riverside County Attainment/Unclassifiable Riverside County (part) remainder Glenn County Attainment/Unclassifiable Inyo County Attainment/Unclassifiable Lake County 1/16/18 Attainment/Unclassifiable Lake Tahoe Air Basin Attainment/Unclassifiable El Dorado County (part) remainder Placer County (part) remainder North Central Coast Air Basin Attainment/Unclassifiable Monterey County San Benito County Santa Cruz County North Coast Air Basin 1/16/18 Attainment/Unclassifiable Del Norte County Humboldt County Mendocino County Sonoma County (part) remainder Trinity County Northeast Plateau Air Basin 1/16/18 Attainment/Unclassifiable Lassen County Modoc County Siskiyou County Northeastern Kern County Attainment/Unclassifiable Kern County (part) remainder Northeast San Bernardino County Attainment/Unclassifiable San Bernardino County (part) remainder Northern Channel Islands Attainment/Unclassifiable The Channel Islands located in the South Central Coast Air Basin: Anacapa, San Miguel, San Nicholas, Santa Barbara, Santa Cruz, and Santa Rosa Islands. Northern Great Basin Valleys Air Basin Attainment/Unclassifiable Alpine County Mono County Northern Mountain Counties Attainment/Unclassifiable Plumas County Sierra County Page 51 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

Santa Barbara County (part) remainder Attainment/Unclassifiable That part of Santa Barbara County excluding the Channel Islands of San Miguel, Santa Barbara, Santa Cruz, and Santa Rosa Islands. Shasta County Attainment/Unclassifiable Sutter and Yuba Counties Attainment/Unclassifiable Sutter County (part) remainder Yuba County Tehama County (part) remainder Attainment/Unclassifiable Western San Luis Obispo County Attainment/Unclassifiable San Luis Obispo County (part) remainder 1Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the boundaries of any area of Indian country in this table, including any area of Indian country located in the larger designation area. The inclusion of any Indian country in the designation area is not a determination that the state has regulatory authority under the Clean Air Act for such Indian country. 2This date is [INSERT DATE 60 DAYS AFTER PUBLICATION IN THE FEDERAL REGISTER], unless otherwise noted. 3See Section 23.0 of the EPA’s technical support document for California, titled “California Final Area Designations for the 2015 Ozone National Ambient Air Quality Standards Technical Support Document (TSD),” for more information and maps showing the locations of the main body of the reservation and the non-contiguous Puyeska Mountain and Meadowbrook lands (available in Docket ID: EPA-HQ-OAR- 2017-0548). 4See Section 22.0 of the EPA’s technical support document for California, titled “California Final Area Designations for the 2015 Ozone National Ambient Air Quality Standards Technical Support Document (TSD),” for more information and maps showing the boundaries of the nonattainment area (available in Docket ID: EPA-HQ-OAR-2017-0548).

* * * * *

5. Section 81.306 is amended by revising the table titled “Colorado—2015 8-Hour Ozone NAAQS

(Primary and Secondary)” to read as follows:

§81.306 Colorado.

*****

Colorado—2015 8-Hour Ozone NAAQS (Primary and Secondary) Designation Classification Designated area1 Date2 Type Date2 Type Denver Metro/North Front Range, CO: Nonattainment Marginal Adams County Arapahoe County Boulder County Broomfield County Page 52 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

Denver County Douglas County Jefferson County Larimer County (part) Including the portion of Rocky Mountain National Park therein and that portion of the county that lies south of a line described as follows: Beginning at a point on Larimer County’s eastern boundary and Weld County’s western boundary intersected by 40 degrees, 42 minutes, and 47.1 seconds north latitude, proceed west to a point defined by the intersection of 40 degrees, 42 minutes, 47.1 seconds north latitude and 105 degrees, 29 minutes, and 40.0 seconds west longitude, thence proceed south on 105 degrees, 29 minutes, 40.0 seconds west longitude to the inter-section with 40 degrees, 33 minutes and 17.4 seconds north latitude, thence proceed west on 40 degrees, 33 minutes, 17.4 seconds north latitude until this line intersects Larimer County’s western boundary and Grand County’s eastern boundary. Weld County (part) That portion of the county that lies south of a line described as follows: Beginning at a point on Weld County’s eastern boundary and Logan County’s western boundary intersected by 40 degrees, 42 minutes, 47.1 seconds north latitude, proceed west on 40 degrees, 42 minutes, 47.1 seconds north latitude until this line intersects Weld County’s western boundary and Larimer County’s eastern boundary. Alamosa County 1/16/18 Attainment/Unclassifiable Archuleta County 1/16/18 Attainment/Unclassifiable Page 53 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

Baca County 1/16/18 Attainment/Unclassifiable Bent County 1/16/18 Attainment/Unclassifiable Chaffee County 1/16/18 Attainment/Unclassifiable Cheyenne County 1/16/18 Attainment/Unclassifiable Clear Creek County Attainment/Unclassifiable Conejos County 1/16/18 Attainment/Unclassifiable Costilla County 1/16/18 Attainment/Unclassifiable Crowley County 1/16/18 Attainment/Unclassifiable Custer County 1/16/18 Attainment/Unclassifiable Delta County 1/16/18 Attainment/Unclassifiable Dolores County 1/16/18 Attainment/Unclassifiable Eagle County 1/16/18 Attainment/Unclassifiable Elbert County Attainment/Unclassifiable El Paso County Attainment/Unclassifiable Fremont County 1/16/18 Attainment/Unclassifiable Garfield County Attainment/Unclassifiable Gilpin County Attainment/Unclassifiable Grand County Attainment/Unclassifiable Gunnison County 1/16/18 Attainment/Unclassifiable Hinsdale County 1/16/18 Attainment/Unclassifiable Huerfano County 1/16/18 Attainment/Unclassifiable Jackson County Attainment/Unclassifiable Kiowa County 1/16/18 Attainment/Unclassifiable Kit Carson County 1/16/18 Attainment/Unclassifiable Lake County 1/16/18 Attainment/Unclassifiable La Plata County 1/16/18 Attainment/Unclassifiable Larimer County (part remainder) Attainment/Unclassifiable Las Animas County 1/16/18 Attainment/Unclassifiable Lincoln County 1/16/18 Attainment/Unclassifiable Logan County 1/16/18 Attainment/Unclassifiable Mesa County 1/16/18 Attainment/Unclassifiable Mineral County 1/16/18 Attainment/Unclassifiable Moffat County Attainment/Unclassifiable Montezuma County 1/16/18 Attainment/Unclassifiable Montrose County 1/16/18 Attainment/Unclassifiable Morgan County 1/16/18 Attainment/Unclassifiable Otero County 1/16/18 Attainment/Unclassifiable Ouray County 1/16/18 Attainment/Unclassifiable Park County Attainment/Unclassifiable Phillips County 1/16/18 Attainment/Unclassifiable Pitkin County 1/16/18 Attainment/Unclassifiable Prowers County 1/16/18 Attainment/Unclassifiable Pueblo County 1/16/18 Attainment/Unclassifiable Rio Blanco County Attainment/Unclassifiable Rio Grande County 1/16/18 Attainment/Unclassifiable Routt County 1/16/18 Attainment/Unclassifiable Saguache County 1/16/18 Attainment/Unclassifiable Page 54 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

San Juan County 1/16/18 Attainment/Unclassifiable San Miguel County 1/16/18 Attainment/Unclassifiable Sedgwick County 1/16/18 Attainment/Unclassifiable Summit County 1/16/18 Attainment/Unclassifiable Teller County Attainment/Unclassifiable Washington County 1/16/18 Attainment/Unclassifiable Weld County (part) remainder Attainment/Unclassifiable Yuma County 1/16/18 Attainment/Unclassifiable 1Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the boundaries of any area of Indian country in this table, including any area of Indian country located in the larger designation area. The inclusion of any Indian country in the designation area is not a determination that the state has regulatory authority under the Clean Air Act for such Indian country. 2This date is [INSERT DATE 60 DAYS AFTER PUBLICATION IN THE FEDERAL REGISTER], unless otherwise noted.

* * * * *

6. Section 81.307 is amended by adding a new table titled “Connecticut—2015 8-Hour Ozone NAAQS

(Primary and Secondary)” following the table titled “Connecticut—2008 8-Hour Ozone NAAQS (Primary and Secondary)” to read as follows:

§81.307 Connecticut.

* * * * *

Connecticut—2015 8-Hour Ozone NAAQS (Primary and Secondary) Designation Classification Designated area1 Date2 Type Date2 Type Greater Connecticut, CT Nonattainment Marginal Hartford County Litchfield County New London County Tolland County Windham County New York-Northern New Jersey-Long Nonattainment Moderate Island, NY-NJ-CT Fairfield County Middlesex County New Haven County 1Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the boundaries of any area of Indian country in this table, including any area of Indian country located in the larger designation area. The inclusion of any Indian country in the designation area is not a determination that the state has regulatory authority under the Clean Air Act for such Indian country. 2This date is [INSERT DATE 60 DAYS AFTER PUBLICATION IN THE FEDERAL REGISTER], unless otherwise noted.

Page 55 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

* * * * *

7. Section 81.308 is amended by adding a new table titled “Delaware—2015 8-Hour Ozone NAAQS

(Primary and Secondary)” following the table titled “Delaware—2008 8-Hour Ozone NAAQS (Primary and Secondary)” to read as follows:

§81.308 Delaware.

* * * * *

Delaware—2015 8-Hour Ozone NAAQS (Primary and Secondary) Designation Classification Designated area1 Date2 Type Date2 Type Philadelphia-Wilmington-Atlantic City, Nonattainment Marginal PA-NJ-MD-DE: New Castle County Kent County Attainment/Unclassifiable Sussex County Attainment/Unclassifiable 1Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the boundaries of any area of Indian country in this table, including any area of Indian country located in the larger designation area. The inclusion of any Indian country in the designation area is not a determination that the state has regulatory authority under the Clean Air Act for such Indian country. 2This date is [INSERT DATE 60 DAYS AFTER PUBLICATION IN THE FEDERAL REGISTER], unless otherwise noted.

* * * * *

8. Section 81.309 is amended by adding a new table titled “District of Columbia —2015 8-Hour Ozone

NAAQS (Primary and Secondary)” following the table titled “District of Columbia —2008 8-Hour Ozone

NAAQS (Primary and Secondary)” to read as follows:

§81.309 District of Columbia.

* * * * *

District of Columbia —2015 8-Hour Ozone NAAQS (Primary and Secondary) Designation Classification Designated area1 Date2 Type Date2 Type Washington, DC-MD-VA: Nonattainment Marginal District of Columbia 1Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the boundaries of any area of Indian country in this table, including any area of Indian country located in the larger designation area. The inclusion of any Indian country in the designation area is not a determination that the state has regulatory authority under the Clean Air Act for such Indian country. Page 56 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

2This date is [INSERT DATE 60 DAYS AFTER PUBLICATION IN THE FEDERAL REGISTER], unless otherwise noted.

* * * * *

9. Section 81.310 is amended by revising the table titled “Florida—2015 8-Hour Ozone NAAQS

(Primary and Secondary)” to read as follows:

§81.310 Florida

* * * * *

Florida—2015 8-Hour Ozone NAAQS (Primary and Secondary) Designation Classification Designated area1 Date2 Type Date Type Jacksonville, FL: Unclassifiable Duval County Alachua County 1/16/18 Attainment/Unclassifiable Baker County Attainment/Unclassifiable Bay County 1/16/18 Attainment/Unclassifiable Bradford County 1/16/18 Attainment/Unclassifiable Brevard County 1/16/18 Attainment/Unclassifiable Broward County 1/16/18 Attainment/Unclassifiable Calhoun County 1/16/18 Attainment/Unclassifiable Charlotte County 1/16/18 Attainment/Unclassifiable Citrus County 1/16/18 Attainment/Unclassifiable Clay County Attainment/Unclassifiable Collier County 1/16/18 Attainment/Unclassifiable Columbia County 1/16/18 Attainment/Unclassifiable DeSoto County 1/16/18 Attainment/Unclassifiable Dixie County 1/16/18 Attainment/Unclassifiable Escambia County 1/16/18 Attainment/Unclassifiable Flagler County 1/16/18 Attainment/Unclassifiable Franklin County 1/16/18 Attainment/Unclassifiable Gadsden County 1/16/18 Attainment/Unclassifiable Gilchrist County 1/16/18 Attainment/Unclassifiable Glades County 1/16/18 Attainment/Unclassifiable Gulf County 1/16/18 Attainment/Unclassifiable Hamilton County 1/16/18 Attainment/Unclassifiable Hardee County 1/16/18 Attainment/Unclassifiable Hendry County 1/16/18 Attainment/Unclassifiable Hernando County 1/16/18 Attainment/Unclassifiable Highlands County 1/16/18 Attainment/Unclassifiable Hillsborough County 1/16/18 Attainment/Unclassifiable Holmes County 1/16/18 Attainment/Unclassifiable Indian River County 1/16/18 Attainment/Unclassifiable Page 57 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

Jackson County 1/16/18 Attainment/Unclassifiable Jefferson County 1/16/18 Attainment/Unclassifiable Lafayette County 1/16/18 Attainment/Unclassifiable Lake County 1/16/18 Attainment/Unclassifiable Lee County 1/16/18 Attainment/Unclassifiable Leon County 1/16/18 Attainment/Unclassifiable Levy County 1/16/18 Attainment/Unclassifiable Liberty County 1/16/18 Attainment/Unclassifiable Madison County 1/16/18 Attainment/Unclassifiable Manatee County 1/16/18 Attainment/Unclassifiable Marion County 1/16/18 Attainment/Unclassifiable Martin County 1/16/18 Attainment/Unclassifiable Miami-Dade County 1/16/18 Attainment/Unclassifiable Monroe County 1/16/18 Attainment/Unclassifiable Nassau County Attainment/Unclassifiable Okaloosa County 1/16/18 Attainment/Unclassifiable Okeechobee County 1/16/18 Attainment/Unclassifiable Orange County 1/16/18 Attainment/Unclassifiable Osceola County 1/16/18 Attainment/Unclassifiable Palm Beach County 1/16/18 Attainment/Unclassifiable Pasco County 1/16/18 Attainment/Unclassifiable Pinellas County 1/16/18 Attainment/Unclassifiable Polk County 1/16/18 Attainment/Unclassifiable Putnam County Attainment/Unclassifiable St. Johns County Attainment/Unclassifiable St. Lucie County 1/16/18 Attainment/Unclassifiable Santa Rosa County 1/16/18 Attainment/Unclassifiable Sarasota County 1/16/18 Attainment/Unclassifiable Seminole County 1/16/18 Attainment/Unclassifiable Sumter County 1/16/18 Attainment/Unclassifiable Suwannee County 1/16/18 Attainment/Unclassifiable Taylor County 1/16/18 Attainment/Unclassifiable Union County 1/16/18 Attainment/Unclassifiable Volusia County 1/16/18 Attainment/Unclassifiable Wakulla County 1/16/18 Attainment/Unclassifiable Walton County 1/16/18 Attainment/Unclassifiable Washington County 1/16/18 Attainment/Unclassifiable 1Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the boundaries of any area of Indian country in this table, including any area of Indian country located in the larger designation area. The inclusion of any Indian country in the designation area is not a determination that the state has regulatory authority under the Clean Air Act for such Indian country. 2This date is [INSERT DATE 60 DAYS AFTER PUBLICATION IN THE FEDERAL REGISTER], unless otherwise noted.

* * * * *

Page 58 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

10. Section 81.311 is amended by revising the table titled “Georgia—2015 8-Hour Ozone NAAQS

(Primary and Secondary)” to read as follows:

§81.311 Georgia.

* * * * *

Georgia—2015 8-Hour Ozone NAAQS (Primary and Secondary) Designation Classification Designated area1 Date2 Type Date2 Type Atlanta, GA: Nonattainment Marginal Bartow County Clayton County Cobb County Dekalb County Fulton County Gwinnett County Henry County Appling County 1/16/18 Attainment/Unclassifiable Atkinson County 1/16/18 Attainment/Unclassifiable Bacon County 1/16/18 Attainment/Unclassifiable Baker County 1/16/18 Attainment/Unclassifiable Baldwin County 1/16/18 Attainment/Unclassifiable Banks County 1/16/18 Attainment/Unclassifiable Barrow County Attainment/Unclassifiable Ben Hill County 1/16/18 Attainment/Unclassifiable Berrien County 1/16/18 Attainment/Unclassifiable Bibb County 1/16/18 Attainment/Unclassifiable Bleckley County 1/16/18 Attainment/Unclassifiable Brantley County 1/16/18 Attainment/Unclassifiable Brooks County 1/16/18 Attainment/Unclassifiable Bryan County 1/16/18 Attainment/Unclassifiable Bulloch County 1/16/18 Attainment/Unclassifiable Burke County 1/16/18 Attainment/Unclassifiable Butts County Attainment/Unclassifiable Calhoun County 1/16/18 Attainment/Unclassifiable Camden County Attainment/Unclassifiable Candler County 1/16/18 Attainment/Unclassifiable Carroll County Attainment/Unclassifiable Catoosa County 1/16/18 Attainment/Unclassifiable Charlton County 1/16/18 Attainment/Unclassifiable Chatham County 1/16/18 Attainment/Unclassifiable Chattahoochee County 1/16/18 Attainment/Unclassifiable Chattooga County 1/16/18 Attainment/Unclassifiable Cherokee County Attainment/Unclassifiable Clarke County Attainment/Unclassifiable Page 59 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

Clay County 1/16/18 Attainment/Unclassifiable Clinch County 1/16/18 Attainment/Unclassifiable Coffee County 1/16/18 Attainment/Unclassifiable Colquitt County 1/16/18 Attainment/Unclassifiable Columbia County 1/16/18 Attainment/Unclassifiable Cook County 1/16/18 Attainment/Unclassifiable Coweta County Attainment/Unclassifiable Crawford County 1/16/18 Attainment/Unclassifiable Crisp County 1/16/18 Attainment/Unclassifiable Dade County 1/16/18 Attainment/Unclassifiable Dawson County Attainment/Unclassifiable Decatur County 1/16/18 Attainment/Unclassifiable Dodge County 1/16/18 Attainment/Unclassifiable Dooly County 1/16/18 Attainment/Unclassifiable Dougherty County 1/16/18 Attainment/Unclassifiable Douglas County Attainment/Unclassifiable Early County 1/16/18 Attainment/Unclassifiable Echols County 1/16/18 Attainment/Unclassifiable Effingham County 1/16/18 Attainment/Unclassifiable Elbert County 1/16/18 Attainment/Unclassifiable Emanuel County 1/16/18 Attainment/Unclassifiable Evans County 1/16/18 Attainment/Unclassifiable Fannin County 1/16/18 Attainment/Unclassifiable Fayette County Attainment/Unclassifiable Floyd County 1/16/18 Attainment/Unclassifiable Forsyth County Attainment/Unclassifiable Franklin County 1/16/18 Attainment/Unclassifiable Gilmer County 1/16/18 Attainment/Unclassifiable Glascock County 1/16/18 Attainment/Unclassifiable Glynn County 1/16/18 Attainment/Unclassifiable Gordon County Attainment/Unclassifiable Grady County 1/16/18 Attainment/Unclassifiable Greene County 1/16/18 Attainment/Unclassifiable Habersham County 1/16/18 Attainment/Unclassifiable Hall County Attainment/Unclassifiable Hancock County 1/16/18 Attainment/Unclassifiable Haralson County Attainment/Unclassifiable Harris County 1/16/18 Attainment/Unclassifiable Hart County 1/16/18 Attainment/Unclassifiable Heard County Attainment/Unclassifiable Houston County 1/16/18 Attainment/Unclassifiable Irwin County 1/16/18 Attainment/Unclassifiable Jackson County Attainment/Unclassifiable Jasper County Attainment/Unclassifiable Jeff Davis County 1/16/18 Attainment/Unclassifiable Jefferson County 1/16/18 Attainment/Unclassifiable Jenkins County 1/16/18 Attainment/Unclassifiable Page 60 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

Johnson County 1/16/18 Attainment/Unclassifiable Jones County 1/16/18 Attainment/Unclassifiable Lamar County Attainment/Unclassifiable Lanier County 1/16/18 Attainment/Unclassifiable Laurens County 1/16/18 Attainment/Unclassifiable Lee County 1/16/18 Attainment/Unclassifiable Liberty County 1/16/18 Attainment/Unclassifiable Lincoln County 1/16/18 Attainment/Unclassifiable Long County 1/16/18 Attainment/Unclassifiable Lowndes County 1/16/18 Attainment/Unclassifiable Lumpkin County 1/16/18 Attainment/Unclassifiable McDuffie County 1/16/18 Attainment/Unclassifiable McIntosh County 1/16/18 Attainment/Unclassifiable Macon County 1/16/18 Attainment/Unclassifiable Madison County Attainment/Unclassifiable Marion County 1/16/18 Attainment/Unclassifiable Meriwether County Attainment/Unclassifiable Miller County 1/16/18 Attainment/Unclassifiable Mitchell County 1/16/18 Attainment/Unclassifiable Monroe County 1/16/18 Attainment/Unclassifiable Montgomery County 1/16/18 Attainment/Unclassifiable Morgan County Attainment/Unclassifiable Murray County 1/16/18 Attainment/Unclassifiable Muscogee County 1/16/18 Attainment/Unclassifiable Newton County Attainment/Unclassifiable Oconee County Attainment/Unclassifiable Oglethorpe County Attainment/Unclassifiable Paulding County Attainment/Unclassifiable Peach County 1/16/18 Attainment/Unclassifiable Pickens County Attainment/Unclassifiable Pierce County 1/16/18 Attainment/Unclassifiable Pike County Attainment/Unclassifiable Polk County Attainment/Unclassifiable Pulaski County 1/16/18 Attainment/Unclassifiable Putnam County 1/16/18 Attainment/Unclassifiable Quitman County 1/16/18 Attainment/Unclassifiable Rabun County 1/16/18 Attainment/Unclassifiable Randolph County 1/16/18 Attainment/Unclassifiable Richmond County 1/16/18 Attainment/Unclassifiable Rockdale County Attainment/Unclassifiable Schley County 1/16/18 Attainment/Unclassifiable Screven County 1/16/18 Attainment/Unclassifiable Seminole County 1/16/18 Attainment/Unclassifiable Spalding County Attainment/Unclassifiable Stephens County 1/16/18 Attainment/Unclassifiable Stewart County 1/16/18 Attainment/Unclassifiable Sumter County 1/16/18 Attainment/Unclassifiable Page 61 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

Talbot County 1/16/18 Attainment/Unclassifiable Taliaferro County 1/16/18 Attainment/Unclassifiable Tattnall County 1/16/18 Attainment/Unclassifiable Taylor County 1/16/18 Attainment/Unclassifiable Telfair County 1/16/18 Attainment/Unclassifiable Terrell County 1/16/18 Attainment/Unclassifiable Thomas County 1/16/18 Attainment/Unclassifiable Tift County 1/16/18 Attainment/Unclassifiable Toombs County 1/16/18 Attainment/Unclassifiable Towns County 1/16/18 Attainment/Unclassifiable Treutlen County 1/16/18 Attainment/Unclassifiable Troup County Attainment/Unclassifiable Turner County 1/16/18 Attainment/Unclassifiable Twiggs County 1/16/18 Attainment/Unclassifiable Union County 1/16/18 Attainment/Unclassifiable Upson County Attainment/Unclassifiable Walker County 1/16/18 Attainment/Unclassifiable Walton County Attainment/Unclassifiable Ware County 1/16/18 Attainment/Unclassifiable Warren County 1/16/18 Attainment/Unclassifiable Washington County 1/16/18 Attainment/Unclassifiable Wayne County 1/16/18 Attainment/Unclassifiable Webster County 1/16/18 Attainment/Unclassifiable Wheeler County 1/16/18 Attainment/Unclassifiable White County 1/16/18 Attainment/Unclassifiable Whitfield County 1/16/18 Attainment/Unclassifiable Wilcox County 1/16/18 Attainment/Unclassifiable Wilkes County 1/16/18 Attainment/Unclassifiable Wilkinson County 1/16/18 Attainment/Unclassifiable Worth County 1/16/18 Attainment/Unclassifiable 1Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the boundaries of any area of Indian country in this table, including any area of Indian country located in the larger designation area. The inclusion of any Indian country in the designation area is not a determination that the state has regulatory authority under the Clean Air Act for such Indian country. 2This date is [INSERT DATE 60 DAYS AFTER PUBLICATION IN THE FEDERAL REGISTER], unless otherwise noted.

* * * * *

11. Section 81.314 is amended by revising the table titled “Illinois—2015 8-Hour Ozone NAAQS

(Primary and Secondary)” to read as follows:

§81.314 Illinois.

* * * * *

Page 62 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

Illinois—2015 8-Hour Ozone NAAQS (Primary and Secondary) Designation Classification Designated area1 Date2 Type Date2 Type Chicago, IL-IN-WI: Nonattainment Marginal Cook County DuPage County Grundy County (part) Aux Sable Township and Goose Lake Township Kane County Kendall County (part) Oswego Township Lake County Will County St. Louis, MO-IL Nonattainment Marginal Madison County St. Clair County Adams County 1/16/18 Attainment/Unclassifiable Alexander County 1/16/18 Attainment/Unclassifiable Boone County 1/16/18 Attainment/Unclassifiable Bond County Attainment/Unclassifiable Brown County 1/16/18 Attainment/Unclassifiable Bureau County Attainment/Unclassifiable Calhoun County Attainment/Unclassifiable Carroll County 1/16/18 Attainment/Unclassifiable Cass County 1/16/18 Attainment/Unclassifiable Champaign County 1/16/18 Attainment/Unclassifiable Christian County 1/16/18 Attainment/Unclassifiable Clark County 1/16/18 Attainment/Unclassifiable Clay County 1/16/18 Attainment/Unclassifiable Clinton County Attainment/Unclassifiable Coles County 1/16/18 Attainment/Unclassifiable Crawford County 1/16/18 Attainment/Unclassifiable Cumberland County 1/16/18 Attainment/Unclassifiable De Kalb County Attainment/Unclassifiable De Witt County 1/16/18 Attainment/Unclassifiable Douglas County 1/16/18 Attainment/Unclassifiable Edgar County 1/16/18 Attainment/Unclassifiable Edwards County 1/16/18 Attainment/Unclassifiable Effingham County 1/16/18 Attainment/Unclassifiable Fayette County 1/16/18 Attainment/Unclassifiable Ford County 1/16/18 Attainment/Unclassifiable Franklin County 1/16/18 Attainment/Unclassifiable Fulton County 1/16/18 Attainment/Unclassifiable Gallatin County 1/16/18 Attainment/Unclassifiable Greene County 1/16/18 Attainment/Unclassifiable Grundy County (part) remainder Attainment/Unclassifiable Page 63 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

Hamilton County 1/16/18 Attainment/Unclassifiable Hancock County 1/16/18 Attainment/Unclassifiable Hardin County 1/16/18 Attainment/Unclassifiable Henderson County 1/16/18 Attainment/Unclassifiable Henry County 1/16/18 Attainment/Unclassifiable Iroquois County 1/16/18 Attainment/Unclassifiable Jackson County 1/16/18 Attainment/Unclassifiable Jasper County 1/16/18 Attainment/Unclassifiable Jefferson County 1/16/18 Attainment/Unclassifiable Jersey County Attainment/Unclassifiable Jo Daviess County 1/16/18 Attainment/Unclassifiable Johnson County 1/16/18 Attainment/Unclassifiable Kankakee County Attainment/Unclassifiable Kendall County (part) remainder Attainment/Unclassifiable Knox County 1/16/18 Attainment/Unclassifiable La Salle County Attainment/Unclassifiable Lawrence County 1/16/18 Attainment/Unclassifiable Lee County 1/16/18 Attainment/Unclassifiable Livingston County 1/16/18 Attainment/Unclassifiable Logan County 1/16/18 Attainment/Unclassifiable Macon County 1/16/18 Attainment/Unclassifiable Macoupin County Attainment/Unclassifiable Marion County Attainment/Unclassifiable Marshall County 1/16/18 Attainment/Unclassifiable Mason County 1/16/18 Attainment/Unclassifiable Massac County 1/16/18 Attainment/Unclassifiable McDonough County 1/16/18 Attainment/Unclassifiable McHenry County Attainment/Unclassifiable McLean County 1/16/18 Attainment/Unclassifiable Menard County 1/16/18 Attainment/Unclassifiable Mercer County 1/16/18 Attainment/Unclassifiable Monroe County Attainment/Unclassifiable Montgomery County 1/16/18 Attainment/Unclassifiable Morgan County 1/16/18 Attainment/Unclassifiable Moultrie County 1/16/18 Attainment/Unclassifiable Ogle County 1/16/18 Attainment/Unclassifiable Peoria County 1/16/18 Attainment/Unclassifiable Perry County 1/16/18 Attainment/Unclassifiable Piatt County 1/16/18 Attainment/Unclassifiable Pike County 1/16/18 Attainment/Unclassifiable Pope County 1/16/18 Attainment/Unclassifiable Pulaski County 1/16/18 Attainment/Unclassifiable Putnam County Attainment/Unclassifiable Randolph County 1/16/18 Attainment/Unclassifiable Richland County 1/16/18 Attainment/Unclassifiable Rock Island County 1/16/18 Attainment/Unclassifiable Saline County 1/16/18 Attainment/Unclassifiable Page 64 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

Sangamon County 1/16/18 Attainment/Unclassifiable Schuyler County 1/16/18 Attainment/Unclassifiable Scott County 1/16/18 Attainment/Unclassifiable Shelby County 1/16/18 Attainment/Unclassifiable Stark County 1/16/18 Attainment/Unclassifiable Stephenson County 1/16/18 Attainment/Unclassifiable Tazewell County 1/16/18 Attainment/Unclassifiable Union County 1/16/18 Attainment/Unclassifiable Vermilion County 1/16/18 Attainment/Unclassifiable Wabash County 1/16/18 Attainment/Unclassifiable Warren County 1/16/18 Attainment/Unclassifiable Washington County 1/16/18 Attainment/Unclassifiable Wayne County 1/16/18 Attainment/Unclassifiable White County 1/16/18 Attainment/Unclassifiable Whiteside County 1/16/18 Attainment/Unclassifiable Williamson County 1/16/18 Attainment/Unclassifiable Winnebago County 1/16/18 Attainment/Unclassifiable Woodford County 1/16/18 Attainment/Unclassifiable 1Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the boundaries of any area of Indian country in this table, including any area of Indian country located in the larger designation area. The inclusion of any Indian country in the designation area is not a determination that the state has regulatory authority under the Clean Air Act for such Indian country. 2This date is [INSERT DATE 60 DAYS AFTER PUBLICATION IN THE FEDERAL REGISTER], unless otherwise noted.

* * * * *

12. Section 81.315 is amended by revising the table titled “Indiana—2015 8-Hour Ozone NAAQS

(Primary and Secondary)” to read as follows:

§81.315 Indiana.

* * * * *

Indiana—2015 8-Hour Ozone NAAQS (Primary and Secondary) Designation Classification Designated area1 Date2 Type Date2 Type Chicago, IL-IN-WI: Nonattainment Marginal Lake County (part) Calumet Township, Hobart Township, North Township, Ross Township, and St. John Township Louisville, KY-IN: Nonattainment Marginal Clark County Floyd County

Page 65 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

Adams County 1/16/18 Attainment/Unclassifiable Allen County 1/16/18 Attainment/Unclassifiable Bartholomew County 1/16/18 Attainment/Unclassifiable Benton County 1/16/18 Attainment/Unclassifiable Blackford County 1/16/18 Attainment/Unclassifiable Boone County 1/16/18 Attainment/Unclassifiable Brown County 1/16/18 Attainment/Unclassifiable Carroll County 1/16/18 Attainment/Unclassifiable Cass County 1/16/18 Attainment/Unclassifiable Clay County 1/16/18 Attainment/Unclassifiable Clinton County 1/16/18 Attainment/Unclassifiable Crawford County 1/16/18 Attainment/Unclassifiable Daviess County 1/16/18 Attainment/Unclassifiable Dearborn County Attainment/Unclassifiable Decatur County 1/16/18 Attainment/Unclassifiable DeKalb County 1/16/18 Attainment/Unclassifiable Delaware County 1/16/18 Attainment/Unclassifiable Dubois County 1/16/18 Attainment/Unclassifiable Elkhart County Attainment/Unclassifiable Fayette County 1/16/18 Attainment/Unclassifiable Fountain County 1/16/18 Attainment/Unclassifiable Franklin County Attainment/Unclassifiable Fulton County 1/16/18 Attainment/Unclassifiable Gibson County 1/16/18 Attainment/Unclassifiable Grant County 1/16/18 Attainment/Unclassifiable Greene County 1/16/18 Attainment/Unclassifiable Hamilton County 1/16/18 Attainment/Unclassifiable Hancock County 1/16/18 Attainment/Unclassifiable Harrison County Attainment/Unclassifiable Hendricks County 1/16/18 Attainment/Unclassifiable Henry County 1/16/18 Attainment/Unclassifiable Howard County 1/16/18 Attainment/Unclassifiable Huntington County 1/16/18 Attainment/Unclassifiable Jackson County 1/16/18 Attainment/Unclassifiable Jasper County Attainment/Unclassifiable Jay County 1/16/18 Attainment/Unclassifiable Jefferson County Attainment/Unclassifiable Jennings County 1/16/18 Attainment/Unclassifiable Johnson County 1/16/18 Attainment/Unclassifiable Knox County 1/16/18 Attainment/Unclassifiable Kosciusko County 1/16/18 Attainment/Unclassifiable LaGrange County 1/16/18 Attainment/Unclassifiable Lake County (part) remainder Attainment/Unclassifiable La Porte County Attainment/Unclassifiable Lawrence County 1/16/18 Attainment/Unclassifiable Madison County 1/16/18 Attainment/Unclassifiable Marion County 1/16/18 Attainment/Unclassifiable Page 66 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

Marshall County Attainment/Unclassifiable Martin County 1/16/18 Attainment/Unclassifiable Miami County 1/16/18 Attainment/Unclassifiable Monroe County 1/16/18 Attainment/Unclassifiable Montgomery County 1/16/18 Attainment/Unclassifiable Morgan County 1/16/18 Attainment/Unclassifiable Newton County Attainment/Unclassifiable Noble County 1/16/18 Attainment/Unclassifiable Ohio County Attainment/Unclassifiable Orange County 1/16/18 Attainment/Unclassifiable Owen County 1/16/18 Attainment/Unclassifiable Parke County 1/16/18 Attainment/Unclassifiable Perry County 1/16/18 Attainment/Unclassifiable Pike County 1/16/18 Attainment/Unclassifiable Porter County Attainment/Unclassifiable Posey County 1/16/18 Attainment/Unclassifiable Pulaski County 1/16/18 Attainment/Unclassifiable Putnam County 1/16/18 Attainment/Unclassifiable Randolph County 1/16/18 Attainment/Unclassifiable Ripley County 1/16/18 Attainment/Unclassifiable Rush County 1/16/18 Attainment/Unclassifiable St. Joseph County Attainment/Unclassifiable Shelby County 1/16/18 Attainment/Unclassifiable Spencer County 1/16/18 Attainment/Unclassifiable Starke County 1/16/18 Attainment/Unclassifiable Steuben County 1/16/18 Attainment/Unclassifiable Sullivan County 1/16/18 Attainment/Unclassifiable Switzerland County 1/16/18 Attainment/Unclassifiable Tippecanoe County 1/16/18 Attainment/Unclassifiable Tipton County 1/16/18 Attainment/Unclassifiable Vanderburgh County 1/16/18 Attainment/Unclassifiable Vermillion County 1/16/18 Attainment/Unclassifiable Vigo County 1/16/18 Attainment/Unclassifiable Wabash County 1/16/18 Attainment/Unclassifiable Warren County 1/16/18 Attainment/Unclassifiable Warrick County 1/16/18 Attainment/Unclassifiable Wayne County 1/16/18 Attainment/Unclassifiable Wells County 1/16/18 Attainment/Unclassifiable White County 1/16/18 Attainment/Unclassifiable Whitley County 1/16/18 Attainment/Unclassifiable 1Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the boundaries of any area of Indian country in this table, including any area of Indian country located in the larger designation area. The inclusion of any Indian country in the designation area is not a determination that the state has regulatory authority under the Clean Air Act for such Indian country. 2This date is [INSERT DATE 60 DAYS AFTER PUBLICATION IN THE FEDERAL REGISTER], unless otherwise noted.

Page 67 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

* * * * *

13. Section 81.318 is amended by revising the table titled “Kentucky—2015 8-Hour Ozone NAAQS

(Primary and Secondary)” to read as follows:

§81.318 Kentucky.

* * * * *

Kentucky—2015 8-Hour Ozone NAAQS (Primary and Secondary) Designation Classification Designated area1 Date2 Type Date2 Type Cincinnati, OH-KY-IN: Nonattainment Marginal Boone County (part) The entire county except for 2010 US Census Tracts 706.01 and 706.04 Campbell County (part) The entire county except for 2010 US Census Tracts 520.01 and 520.02 Kenton County (part) The entire county except for 2010 US Census Tracts 637.01 and 637.02 Louisville, KY-IN: Nonattainment Marginal Bullitt County Jefferson County Oldham County Adair County 1/16/18 Attainment/Unclassifiable Allen County 1/16/18 Attainment/Unclassifiable Anderson County 1/16/18 Attainment/Unclassifiable Ballard County 1/16/18 Attainment/Unclassifiable Barren County 1/16/18 Attainment/Unclassifiable Bath County 1/16/18 Attainment/Unclassifiable Bell County 1/16/18 Attainment/Unclassifiable Boone County (part) remainder Attainment/Unclassifiable Bourbon County 1/16/18 Attainment/Unclassifiable Boyd County 1/16/18 Attainment/Unclassifiable Boyle County 1/16/18 Attainment/Unclassifiable Bracken County Attainment/Unclassifiable Breathitt County 1/16/18 Attainment/Unclassifiable Breckinridge County 1/16/18 Attainment/Unclassifiable Butler County 1/16/18 Attainment/Unclassifiable Caldwell County 1/16/18 Attainment/Unclassifiable Calloway County 1/16/18 Attainment/Unclassifiable Page 68 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

Campbell County (part) remainder Attainment/Unclassifiable Carlisle County 1/16/18 Attainment/Unclassifiable Carroll County 1/16/18 Attainment/Unclassifiable Carter County 1/16/18 Attainment/Unclassifiable Casey County 1/16/18 Attainment/Unclassifiable Christian County 1/16/18 Attainment/Unclassifiable Clark County 1/16/18 Attainment/Unclassifiable Clay County 1/16/18 Attainment/Unclassifiable Clinton County 1/16/18 Attainment/Unclassifiable Crittenden County 1/16/18 Attainment/Unclassifiable Cumberland County 1/16/18 Attainment/Unclassifiable Daviess County 1/16/18 Attainment/Unclassifiable Edmonson County 1/16/18 Attainment/Unclassifiable Elliott County 1/16/18 Attainment/Unclassifiable Estill County 1/16/18 Attainment/Unclassifiable Fayette County 1/16/18 Attainment/Unclassifiable Fleming County 1/16/18 Attainment/Unclassifiable Floyd County 1/16/18 Attainment/Unclassifiable Franklin County 1/16/18 Attainment/Unclassifiable Fulton County 1/16/18 Attainment/Unclassifiable Gallatin County Attainment/Unclassifiable Garrard County 1/16/18 Attainment/Unclassifiable Grant County Attainment/Unclassifiable Graves County 1/16/18 Attainment/Unclassifiable Grayson County 1/16/18 Attainment/Unclassifiable Green County 1/16/18 Attainment/Unclassifiable Greenup County 1/16/18 Attainment/Unclassifiable Hancock County 1/16/18 Attainment/Unclassifiable Hardin County Attainment/Unclassifiable Harlan County 1/16/18 Attainment/Unclassifiable Harrison County 1/16/18 Attainment/Unclassifiable Hart County 1/16/18 Attainment/Unclassifiable Henderson County 1/16/18 Attainment/Unclassifiable Henry County Attainment/Unclassifiable Hickman County 1/16/18 Attainment/Unclassifiable Hopkins County 1/16/18 Attainment/Unclassifiable Jackson County 1/16/18 Attainment/Unclassifiable Jessamine County 1/16/18 Attainment/Unclassifiable Johnson County 1/16/18 Attainment/Unclassifiable Kenton County (part) remainder Attainment/Unclassifiable Knott County 1/16/18 Attainment/Unclassifiable Knox County 1/16/18 Attainment/Unclassifiable Larue County Attainment/Unclassifiable Laurel County 1/16/18 Attainment/Unclassifiable Lawrence County 1/16/18 Attainment/Unclassifiable Lee County 1/16/18 Attainment/Unclassifiable Leslie County 1/16/18 Attainment/Unclassifiable Page 69 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

Letcher County 1/16/18 Attainment/Unclassifiable Lewis County 1/16/18 Attainment/Unclassifiable Lincoln County 1/16/18 Attainment/Unclassifiable Livingston County 1/16/18 Attainment/Unclassifiable Logan County 1/16/18 Attainment/Unclassifiable Lyon County 1/16/18 Attainment/Unclassifiable Mason County Attainment/Unclassifiable McCracken County 1/16/18 Attainment/Unclassifiable McCreary County 1/16/18 Attainment/Unclassifiable McLean County 1/16/18 Attainment/Unclassifiable Madison County 1/16/18 Attainment/Unclassifiable Magoffin County 1/16/18 Attainment/Unclassifiable Marion County 1/16/18 Attainment/Unclassifiable Marshall County 1/16/18 Attainment/Unclassifiable Martin County 1/16/18 Attainment/Unclassifiable Meade County Attainment/Unclassifiable Menifee County 1/16/18 Attainment/Unclassifiable Mercer County 1/16/18 Attainment/Unclassifiable Metcalfe County 1/16/18 Attainment/Unclassifiable Monroe County 1/16/18 Attainment/Unclassifiable Montgomery County 1/16/18 Attainment/Unclassifiable Morgan County 1/16/18 Attainment/Unclassifiable Muhlenberg County 1/16/18 Attainment/Unclassifiable Nelson County Attainment/Unclassifiable Nicholas County 1/16/18 Attainment/Unclassifiable Ohio County 1/16/18 Attainment/Unclassifiable Owen County 1/16/18 Attainment/Unclassifiable Owsley County 1/16/18 Attainment/Unclassifiable Pendleton County Attainment/Unclassifiable Perry County 1/16/18 Attainment/Unclassifiable Pike County 1/16/18 Attainment/Unclassifiable Powell County 1/16/18 Attainment/Unclassifiable Pulaski County 1/16/18 Attainment/Unclassifiable Robertson County 1/16/18 Attainment/Unclassifiable Rockcastle County 1/16/18 Attainment/Unclassifiable Rowan County 1/16/18 Attainment/Unclassifiable Russell County 1/16/18 Attainment/Unclassifiable Scott County 1/16/18 Attainment/Unclassifiable Shelby County Attainment/Unclassifiable Simpson County 1/16/18 Attainment/Unclassifiable Spencer County Attainment/Unclassifiable Taylor County 1/16/18 Attainment/Unclassifiable Todd County 1/16/18 Attainment/Unclassifiable Trigg County 1/16/18 Attainment/Unclassifiable Trimble County Attainment/Unclassifiable Union County 1/16/18 Attainment/Unclassifiable Warren County 1/16/18 Attainment/Unclassifiable Page 70 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

Washington County 1/16/18 Attainment/Unclassifiable Wayne County 1/16/18 Attainment/Unclassifiable Webster County 1/16/18 Attainment/Unclassifiable Whitley County 1/16/18 Attainment/Unclassifiable Wolfe County 1/16/18 Attainment/Unclassifiable Woodford County 1/16/18 Attainment/Unclassifiable 1Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the boundaries of any area of Indian country in this table, including any area of Indian country located in the larger designation area. The inclusion of any Indian country in the designation area is not a determination that the state has regulatory authority under the Clean Air Act for such Indian country. 2This date is [INSERT DATE 60 DAYS AFTER PUBLICATION IN THE FEDERAL REGISTER], unless otherwise noted.

* * * * *

14. Section 81.319 is amended by revising the table titled “Louisiana—2015 8-Hour Ozone NAAQS

(Primary and Secondary)” to read as follows:

§81.319 Louisiana.

* * * * *

Louisiana—2015 8-Hour Ozone NAAQS (Primary and Secondary) Designation Classification Designated area1 Date2 Type Date2 Type Acadia Parish 1/16/18 Attainment/Unclassifiable Allen Parish 1/16/18 Attainment/Unclassifiable Ascension Parish Attainment/Unclassifiable Assumption Parish Attainment/Unclassifiable Avoyelles Parish 1/16/18 Attainment/Unclassifiable Beauregard Parish 1/16/18 Attainment/Unclassifiable Bienville Parish 1/16/18 Attainment/Unclassifiable Bossier Parish 1/16/18 Attainment/Unclassifiable Caddo Parish 1/16/18 Attainment/Unclassifiable Calcasieu Parish 1/16/18 Attainment/Unclassifiable Caldwell Parish 1/16/18 Attainment/Unclassifiable Cameron Parish 1/16/18 Attainment/Unclassifiable Catahoula Parish 1/16/18 Attainment/Unclassifiable Claiborne Parish 1/16/18 Attainment/Unclassifiable Concordia Parish 1/16/18 Attainment/Unclassifiable De Soto Parish 1/16/18 Attainment/Unclassifiable East Baton Rouge Parish Attainment/Unclassifiable East Carroll Parish 1/16/18 Attainment/Unclassifiable East Feliciana Parish Attainment/Unclassifiable Evangeline Parish 1/16/18 Attainment/Unclassifiable Franklin Parish 1/16/18 Attainment/Unclassifiable

Page 71 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

Grant Parish 1/16/18 Attainment/Unclassifiable Iberia Parish 1/16/18 Attainment/Unclassifiable Iberville Parish Attainment/Unclassifiable Jackson Parish 1/16/18 Attainment/Unclassifiable Jefferson Parish 1/16/18 Attainment/Unclassifiable Jefferson Davis Parish 1/16/18 Attainment/Unclassifiable Lafayette Parish 1/16/18 Attainment/Unclassifiable Lafourche Parish 1/16/18 Attainment/Unclassifiable LaSalle Parish 1/16/18 Attainment/Unclassifiable Lincoln Parish 1/16/18 Attainment/Unclassifiable Livingston Parish Attainment/Unclassifiable Madison Parish 1/16/18 Attainment/Unclassifiable Morehouse Parish 1/16/18 Attainment/Unclassifiable Natchitoches Parish 1/16/18 Attainment/Unclassifiable Orleans Parish 1/16/18 Attainment/Unclassifiable Ouachita Parish 1/16/18 Attainment/Unclassifiable Plaquemines Parish 1/16/18 Attainment/Unclassifiable Pointe Coupee Parish Attainment/Unclassifiable Rapides Parish 1/16/18 Attainment/Unclassifiable Red River Parish 1/16/18 Attainment/Unclassifiable Richland Parish 1/16/18 Attainment/Unclassifiable Sabine Parish 1/16/18 Attainment/Unclassifiable St. Bernard Parish 1/16/18 Attainment/Unclassifiable St. Charles Parish 1/16/18 Attainment/Unclassifiable St. Helena Parish Attainment/Unclassifiable St. James Parish Attainment/Unclassifiable St. John the Baptist Parish 1/16/18 Attainment/Unclassifiable St. Landry Parish 1/16/18 Attainment/Unclassifiable St. Martin Parish 1/16/18 Attainment/Unclassifiable St. Mary Parish 1/16/18 Attainment/Unclassifiable St. Tammany Parish 1/16/18 Attainment/Unclassifiable Tangipahoa Parish 1/16/18 Attainment/Unclassifiable Tensas Parish 1/16/18 Attainment/Unclassifiable Terrebonne Parish 1/16/18 Attainment/Unclassifiable Union Parish 1/16/18 Attainment/Unclassifiable Vermilion Parish 1/16/18 Attainment/Unclassifiable Vernon Parish 1/16/18 Attainment/Unclassifiable Washington Parish 1/16/18 Attainment/Unclassifiable Webster Parish 1/16/18 Attainment/Unclassifiable West Baton Rouge Parish Attainment/Unclassifiable West Carroll Parish 1/16/18 Attainment/Unclassifiable West Feliciana Parish Attainment/Unclassifiable Winn Parish 1/16/18 Attainment/Unclassifiable 1Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the boundaries of any area of Indian country in this table, including any area of Indian country located in the larger designation area. The inclusion of any Indian country in the designation area is not a determination that the state has regulatory authority under the Clean Air Act for such Indian country. Page 72 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

2This date is [INSERT DATE 60 DAYS AFTER PUBLICATION IN THE FEDERAL REGISTER], unless otherwise noted.

* * * * *

15. Section 81.321 is amended by revising the table titled “Maryland—2015 8-Hour Ozone NAAQS

(Primary and Secondary)” to read as follows:

§81.321 Maryland.

* * * * *

Maryland—2015 8-Hour Ozone NAAQS (Primary and Secondary) Designation Classification Designated area1 Date2 Type Date2 Type Baltimore, MD: Nonattainment Marginal Anne Arundel County Baltimore County Carroll County Harford County Howard County City of Baltimore Philadelphia-Wilmington-Atlantic City, Nonattainment Marginal PA-NJ-MD-DE: Cecil County Washington, DC-MD-VA: Nonattainment Marginal Calvert County Charles County Frederick County Montgomery County Prince George's County Allegany County 1/16/18 Attainment/Unclassifiable Caroline County 1/16/18 Attainment/Unclassifiable Dorchester County Attainment/Unclassifiable Garrett County 1/16/18 Attainment/Unclassifiable Kent County Attainment/Unclassifiable Queen Anne's County Attainment/Unclassifiable St. Mary's County Attainment/Unclassifiable Somerset County 1/16/18 Attainment/Unclassifiable Talbot County Attainment/Unclassifiable Washington County Attainment/Unclassifiable Wicomico County 1/16/18 Attainment/Unclassifiable Worcester County 1/16/18 Attainment/Unclassifiable 1Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the boundaries of any area of Indian country in this table, including any area of Indian country located in

Page 73 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

the larger designation area. The inclusion of any Indian country in the designation area is not a determination that the state has regulatory authority under the Clean Air Act for such Indian country. 2This date is [INSERT DATE 60 DAYS AFTER PUBLICATION IN THE FEDERAL REGISTER], unless otherwise noted.

* * * * *

16. Section 81.322 is amended by revising the table titled “Massachusetts—2015 8-Hour Ozone NAAQS

(Primary and Secondary)” to read as follows:

§81.322 Massachusetts.

* * * * *

Massachusetts—2015 8-Hour Ozone NAAQS (Primary and Secondary) Designation Classification Designated area1 Date2 Type Date Type Barnstable County 1/16/18 Attainment/Unclassifiable Berkshire County Attainment/Unclassifiable Bristol County 1/16/18 Attainment/Unclassifiable Dukes County 1/16/18 Attainment/Unclassifiable Essex County 1/16/18 Attainment/Unclassifiable Franklin County 1/16/18 Attainment/Unclassifiable Hampden County Attainment/Unclassifiable Hampshire County 1/16/18 Attainment/Unclassifiable Middlesex County 1/16/18 Attainment/Unclassifiable Nantucket County 1/16/18 Attainment/Unclassifiable Norfolk County 1/16/18 Attainment/Unclassifiable Plymouth County 1/16/18 Attainment/Unclassifiable Suffolk County 1/16/18 Attainment/Unclassifiable Worcester County Attainment/Unclassifiable 1Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the boundaries of any area of Indian country in this table, including any area of Indian country located in the larger designation area. The inclusion of any Indian country in the designation area is not a determination that the state has regulatory authority under the Clean Air Act for such Indian country. 2This date is [INSERT DATE 60 DAYS AFTER PUBLICATION IN THE FEDERAL REGISTER], unless otherwise noted.

* * * * *

17. Section 81.323 is amended by revising the table titled “Michigan—2015 8-Hour Ozone NAAQS

(Primary and Secondary)” to read as follows:

§81.323 Michigan.

* * * * * Page 74 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

Michigan—2015 8-Hour Ozone NAAQS (Primary and Secondary) Designation Classification Designated area1 Date2 Type Date2 Type Allegan County, MI: Nonattainment Marginal Allegan County (part) Casco Township, Cheshire Township, City of Douglas, City of Holland, City of Saugatuck, Clyde Township, Fillmore Township, Ganges Township, Heath Township, Laketown Township, Lee Township, Manilus Township, Overisel Township, Saugatuck Township, and Valley Township Berrien County, MI: Nonattainment Marginal Berrien County Detroit, MI: Nonattainment Marginal Livingston County Macomb County Monroe County Oakland County St. Clair County Washtenaw County Wayne County Muskegon County, MI: Nonattainment Marginal Muskegon County (part) Blue Lake Township, City of Montague, City of Muskegon, City of Muskegon Heights, City of North Muskegon, City of Roosevelt Park, City of Whitehall, Dalton Township, Fruitland Township, Fruitport Township, Laketon Township, Montague Township, Muskegon Township, Norton Shores Township, White River Township, and Whitehall Township Alcona County 1/16/18 Attainment/Unclassifiable Allegan County (part) remainder Attainment/Unclassifiable Alger County 1/16/18 Attainment/Unclassifiable Alpena County 1/16/18 Attainment/Unclassifiable Antrim County 1/16/18 Attainment/Unclassifiable Arenac County 1/16/18 Attainment/Unclassifiable Baraga County 1/16/18 Attainment/Unclassifiable Page 75 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

Barry County Attainment/Unclassifiable Bay County 1/16/18 Attainment/Unclassifiable Benzie County 1/16/18 Attainment/Unclassifiable Branch County 1/16/18 Attainment/Unclassifiable Calhoun County 1/16/18 Attainment/Unclassifiable Cass County Attainment/Unclassifiable Charlevoix County 1/16/18 Attainment/Unclassifiable Cheboygan County 1/16/18 Attainment/Unclassifiable Chippewa County 1/16/18 Attainment/Unclassifiable Clare County 1/16/18 Attainment/Unclassifiable Clinton County 1/16/18 Attainment/Unclassifiable Crawford County 1/16/18 Attainment/Unclassifiable Delta County 1/16/18 Attainment/Unclassifiable Dickinson County 1/16/18 Attainment/Unclassifiable Eaton County 1/16/18 Attainment/Unclassifiable Emmet County 1/16/18 Attainment/Unclassifiable Genesee County Attainment/Unclassifiable Gladwin County 1/16/18 Attainment/Unclassifiable Gogebic County 1/16/18 Attainment/Unclassifiable Grand Traverse County 1/16/18 Attainment/Unclassifiable Gratiot County 1/16/18 Attainment/Unclassifiable Hillsdale County 1/16/18 Attainment/Unclassifiable Houghton County 1/16/18 Attainment/Unclassifiable Huron County 1/16/18 Attainment/Unclassifiable Ingham County 1/16/18 Attainment/Unclassifiable Ionia County Attainment/Unclassifiable Iosco County 1/16/18 Attainment/Unclassifiable Iron County 1/16/18 Attainment/Unclassifiable Isabella County 1/16/18 Attainment/Unclassifiable Jackson County 1/16/18 Attainment/Unclassifiable Kalamazoo County Attainment/Unclassifiable Kalkaska County 1/16/18 Attainment/Unclassifiable Kent County Attainment/Unclassifiable Keweenaw County 1/16/18 Attainment/Unclassifiable Lake County 1/16/18 Attainment/Unclassifiable Lapeer County Attainment/Unclassifiable Leelanau County 1/16/18 Attainment/Unclassifiable Lenawee County Attainment/Unclassifiable Luce County 1/16/18 Attainment/Unclassifiable Mackinac County 1/16/18 Attainment/Unclassifiable Manistee County 1/16/18 Attainment/Unclassifiable Marquette County 1/16/18 Attainment/Unclassifiable Mason County 1/16/18 Attainment/Unclassifiable Mecosta County Attainment/Unclassifiable Menominee County 1/16/18 Attainment/Unclassifiable Midland County 1/16/18 Attainment/Unclassifiable Missaukee County 1/16/18 Attainment/Unclassifiable Page 76 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

Montcalm County Attainment/Unclassifiable Montmorency County 1/16/18 Attainment/Unclassifiable Muskegon County (part) remainder Attainment/Unclassifiable Newaygo County Attainment/Unclassifiable Oceana County Attainment/Unclassifiable Ogemaw County 1/16/18 Attainment/Unclassifiable Ontonagon County 1/16/18 Attainment/Unclassifiable Osceola County 1/16/18 Attainment/Unclassifiable Oscoda County 1/16/18 Attainment/Unclassifiable Otsego County 1/16/18 Attainment/Unclassifiable Ottawa County Attainment/Unclassifiable Presque Isle County 1/16/18 Attainment/Unclassifiable Roscommon County 1/16/18 Attainment/Unclassifiable Saginaw County 1/16/18 Attainment/Unclassifiable St. Joseph County 1/16/18 Attainment/Unclassifiable Schoolcraft County 1/16/18 Attainment/Unclassifiable Sanilac County Attainment/Unclassifiable Shiawassee County 1/16/18 Attainment/Unclassifiable Tuscola County 1/16/18 Attainment/Unclassifiable Van Buren County Attainment/Unclassifiable Wexford County 1/16/18 Attainment/Unclassifiable 1Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the boundaries of any area of Indian country in this table, including any area of Indian country located in the larger designation area. The inclusion of any Indian country in the designation area is not a determination that the state has regulatory authority under the Clean Air Act for such Indian country. 2This date is [INSERT DATE 60 DAYS AFTER PUBLICATION IN THE FEDERAL REGISTER], unless otherwise noted.

* * * * *

18. Section 81.326 is amended by revising the table titled “Missouri—2015 8-Hour Ozone NAAQS

(Primary and Secondary)” to read as follows:

§81.326 Missouri.

* * * * *

Missouri—2015 8-Hour Ozone NAAQS (Primary and Secondary) Designation Classification Designated area1 Date2 Type Date2 Type St. Louis, MO-IL: Nonattainment Marginal Franklin County (part) Bowles township St. Charles County St. Louis County City of St. Louis

Page 77 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

Adair County 1/16/18 Attainment/Unclassifiable Andrew County 1/16/18 Attainment/Unclassifiable Atchison County 1/16/18 Attainment/Unclassifiable Audrain County 1/16/18 Attainment/Unclassifiable Barry County 1/16/18 Attainment/Unclassifiable Barton County 1/16/18 Attainment/Unclassifiable Bates County 1/16/18 Attainment/Unclassifiable Benton County 1/16/18 Attainment/Unclassifiable Bollinger County 1/16/18 Attainment/Unclassifiable Boone County 1/16/18 Attainment/Unclassifiable Buchanan County 1/16/18 Attainment/Unclassifiable Butler County 1/16/18 Attainment/Unclassifiable Caldwell County 1/16/18 Attainment/Unclassifiable Callaway County 1/16/18 Attainment/Unclassifiable Camden County 1/16/18 Attainment/Unclassifiable Cape Girardeau County 1/16/18 Attainment/Unclassifiable Carroll County 1/16/18 Attainment/Unclassifiable Carter County 1/16/18 Attainment/Unclassifiable Cass County 1/16/18 Attainment/Unclassifiable Cedar County 1/16/18 Attainment/Unclassifiable Chariton County 1/16/18 Attainment/Unclassifiable Christian County 1/16/18 Attainment/Unclassifiable Clark County 1/16/18 Attainment/Unclassifiable Clay County 1/16/18 Attainment/Unclassifiable Clinton County 1/16/18 Attainment/Unclassifiable Cole County 1/16/18 Attainment/Unclassifiable Cooper County 1/16/18 Attainment/Unclassifiable Crawford County 1/16/18 Attainment/Unclassifiable Dade County 1/16/18 Attainment/Unclassifiable Dallas County 1/16/18 Attainment/Unclassifiable Daviess County 1/16/18 Attainment/Unclassifiable DeKalb County 1/16/18 Attainment/Unclassifiable Dent County 1/16/18 Attainment/Unclassifiable Douglas County 1/16/18 Attainment/Unclassifiable Dunklin County 1/16/18 Attainment/Unclassifiable Franklin County (part) remainder Attainment/Unclassifiable Gasconade County 1/16/18 Attainment/Unclassifiable Gentry County 1/16/18 Attainment/Unclassifiable Greene County 1/16/18 Attainment/Unclassifiable Grundy County 1/16/18 Attainment/Unclassifiable Harrison County 1/16/18 Attainment/Unclassifiable Henry County 1/16/18 Attainment/Unclassifiable Hickory County 1/16/18 Attainment/Unclassifiable Holt County 1/16/18 Attainment/Unclassifiable Howard County 1/16/18 Attainment/Unclassifiable Howell County 1/16/18 Attainment/Unclassifiable Iron County 1/16/18 Attainment/Unclassifiable Page 78 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

Jackson County 1/16/18 Attainment/Unclassifiable Jasper County 1/16/18 Attainment/Unclassifiable Jefferson County Attainment/Unclassifiable Johnson County 1/16/18 Attainment/Unclassifiable Knox County 1/16/18 Attainment/Unclassifiable Laclede County 1/16/18 Attainment/Unclassifiable Lafayette County 1/16/18 Attainment/Unclassifiable Lawrence County 1/16/18 Attainment/Unclassifiable Lewis County 1/16/18 Attainment/Unclassifiable Lincoln County Attainment/Unclassifiable Linn County 1/16/18 Attainment/Unclassifiable Livingston County 1/16/18 Attainment/Unclassifiable McDonald County 1/16/18 Attainment/Unclassifiable Macon County 1/16/18 Attainment/Unclassifiable Madison County 1/16/18 Attainment/Unclassifiable Maries County 1/16/18 Attainment/Unclassifiable Marion County 1/16/18 Attainment/Unclassifiable Mercer County 1/16/18 Attainment/Unclassifiable Miller County 1/16/18 Attainment/Unclassifiable Mississippi County 1/16/18 Attainment/Unclassifiable Moniteau County 1/16/18 Attainment/Unclassifiable Monroe County 1/16/18 Attainment/Unclassifiable Montgomery County 1/16/18 Attainment/Unclassifiable Morgan County 1/16/18 Attainment/Unclassifiable New Madrid County 1/16/18 Attainment/Unclassifiable Newton County 1/16/18 Attainment/Unclassifiable Nodaway County 1/16/18 Attainment/Unclassifiable Oregon County 1/16/18 Attainment/Unclassifiable Osage County 1/16/18 Attainment/Unclassifiable Ozark County 1/16/18 Attainment/Unclassifiable Pemiscot County 1/16/18 Attainment/Unclassifiable Perry County 1/16/18 Attainment/Unclassifiable Pettis County 1/16/18 Attainment/Unclassifiable Phelps County 1/16/18 Attainment/Unclassifiable Pike County 1/16/18 Attainment/Unclassifiable Platte County 1/16/18 Attainment/Unclassifiable Polk County 1/16/18 Attainment/Unclassifiable Pulaski County 1/16/18 Attainment/Unclassifiable Putnam County 1/16/18 Attainment/Unclassifiable Ralls County 1/16/18 Attainment/Unclassifiable Randolph County 1/16/18 Attainment/Unclassifiable Ray County 1/16/18 Attainment/Unclassifiable Reynolds County 1/16/18 Attainment/Unclassifiable Ripley County 1/16/18 Attainment/Unclassifiable St. Clair County 1/16/18 Attainment/Unclassifiable St. Francois County Attainment/Unclassifiable Ste. Genevieve County 1/16/18 Attainment/Unclassifiable Page 79 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

Saline County 1/16/18 Attainment/Unclassifiable Schuyler County 1/16/18 Attainment/Unclassifiable Scotland County 1/16/18 Attainment/Unclassifiable Scott County 1/16/18 Attainment/Unclassifiable Shannon County 1/16/18 Attainment/Unclassifiable Shelby County 1/16/18 Attainment/Unclassifiable Stoddard County 1/16/18 Attainment/Unclassifiable Stone County 1/16/18 Attainment/Unclassifiable Sullivan County 1/16/18 Attainment/Unclassifiable Taney County 1/16/18 Attainment/Unclassifiable Texas County 1/16/18 Attainment/Unclassifiable Vernon County 1/16/18 Attainment/Unclassifiable Warren County Attainment/Unclassifiable Washington County 1/16/18 Attainment/Unclassifiable Wayne County 1/16/18 Attainment/Unclassifiable Webster County 1/16/18 Attainment/Unclassifiable Worth County 1/16/18 Attainment/Unclassifiable Wright County 1/16/18 Attainment/Unclassifiable 1Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the boundaries of any area of Indian country in this table, including any area of Indian country located in the larger designation area. The inclusion of any Indian country in the designation area is not a determination that the state has regulatory authority under the Clean Air Act for such Indian country. 2This date is [INSERT DATE 60 DAYS AFTER PUBLICATION IN THE FEDERAL REGISTER], unless otherwise noted.

* * * * *

19. Section 81.329 is amended by revising the table titled “Nevada—2015 8-Hour Ozone NAAQS

(Primary and Secondary)” to read as follows:

§81.329 Nevada.

* * * * *

Nevada—2015 8-Hour Ozone NAAQS (Primary and Secondary) Designation Classification Designated area1 Date2 Type Date2 Type Las Vegas, NV: Nonattainment Marginal Clark County (part) That portion of Clark County that lies in hydrographic area 212.3 Las Vegas Tribe of Paiute Indians of the Las Vegas Indian Colony Rest of State: Attainment/Unclassifiable Carson City

Page 80 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

Churchill County 1/16/18 Clark County (part) remainder Douglas County Elko County 1/16/18 Esmeralda County 1/16/18 Eureka County 1/16/18 Humboldt County 1/16/18 Lander County 1/16/18 Lincoln County Lyon County 1/16/18 Mineral County 1/16/18 Nye County Pershing County 1/16/18 Storey County 1/16/18 Washoe County White Pine County 1/16/18 1Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the boundaries of any area of Indian country in this table, including any area of Indian country located in the larger designation area. The inclusion of any Indian country in the designation area is not a determination that the state has regulatory authority under the Clean Air Act for such Indian country. 2This date is [INSERT DATE 60 DAYS AFTER PUBLICATION IN THE FEDERAL REGISTER], unless otherwise noted. 3Hydrographic areas are shown on the State of Nevada Division of Water Resources’ map titled Water Resources and Inter-basin Flows (September 1971).

* * * * *

20. Section 81.331 is amended by adding a new table titled “New Jersey—2015 8-Hour Ozone NAAQS

(Primary and Secondary)” following the table titled “New Jersey—2008 8-Hour Ozone NAAQS (Primary and Secondary)” to read as follows:

§81.331 New Jersey.

* * * * *

New Jersey—2015 8-Hour Ozone NAAQS (Primary and Secondary) Designation Classification Designated area1 Date2 Type Date2 Type New York-Northern New Jersey-Long Nonattainment Moderate Island, NY-NJ-CT: Bergen County Essex County Hudson County Hunterdon County Middlesex County Page 81 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

Monmouth County Morris County Passaic County Somerset County Sussex County Union County Warren County Philadelphia-Wilmington-Atlantic City, Nonattainment Marginal PA-NJ-DE-MD: Atlantic County Burlington County Camden County Cape May County Cumberland County Gloucester County Mercer County Ocean County Salem County 1Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the boundaries of any area of Indian country in this table, including any area of Indian country located in the larger designation area. The inclusion of any Indian country in the designation area is not a determination that the state has regulatory authority under the Clean Air Act for such Indian country. 2This date is [INSERT DATE 60 DAYS AFTER PUBLICATION IN THE FEDERAL REGISTER], unless otherwise noted.

* * * * *

21. Section 81.332 is amended by revising the table titled “New Mexico—2015 8-Hour Ozone NAAQS

(Primary and Secondary)” to read as follows:

§81.332 New Mexico.

* * * * *

New Mexico—2015 8-Hour Ozone NAAQS (Primary and Secondary) Designation Classification Designated area1 Date2 Type Date2 Type Doña Ana County (Sunland Park Area), Nonattainment Marginal NM: Doña Ana County (part) The area bounded on the New Mexico-Texas state line on the east, the New Mexico-Mexico international line on the south, latitude N31°49’30” on the north, and longitude W106°36’36” on the west. Page 82 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

Rest of State: Bernalillo County 1/16/18 Attainment/Unclassifiable Catron County 1/16/18 Attainment/Unclassifiable Chaves County 1/16/18 Attainment/Unclassifiable Cibola County 1/16/18 Attainment/Unclassifiable Colfax County 1/16/18 Attainment/Unclassifiable Curry County 1/16/18 Attainment/Unclassifiable Doña Ana County (part) remainder Attainment/Unclassifiable De Baca County 1/16/18 Attainment/Unclassifiable Eddy County 1/16/18 Attainment/Unclassifiable Grant County 1/16/18 Attainment/Unclassifiable Guadalupe County 1/16/18 Attainment/Unclassifiable Harding County 1/16/18 Attainment/Unclassifiable Hidalgo County 1/16/18 Attainment/Unclassifiable Lea County 1/16/18 Attainment/Unclassifiable Lincoln County 1/16/18 Attainment/Unclassifiable Los Alamos County 1/16/18 Attainment/Unclassifiable Luna County Attainment/Unclassifiable McKinley County 1/16/18 Attainment/Unclassifiable Mora County 1/16/18 Attainment/Unclassifiable Otero County Attainment/Unclassifiable Quay County 1/16/18 Attainment/Unclassifiable Rio Arriba County 1/16/18 Attainment/Unclassifiable Roosevelt County 1/16/18 Attainment/Unclassifiable Sandoval County 1/16/18 Attainment/Unclassifiable San Juan County 1/16/18 Attainment/Unclassifiable San Miguel County 1/16/18 Attainment/Unclassifiable Santa Fe County 1/16/18 Attainment/Unclassifiable Sierra County Attainment/Unclassifiable Socorro County 1/16/18 Attainment/Unclassifiable Taos County 1/16/18 Attainment/Unclassifiable Torrance County 1/16/18 Attainment/Unclassifiable Union County 1/16/18 Attainment/Unclassifiable Valencia County 1/16/18 Attainment/Unclassifiable 1Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the boundaries of any area of Indian country in this table, including any area of Indian country located in the larger designation area. The inclusion of any Indian country in the designation area is not a determination that the state has regulatory authority under the Clean Air Act for such Indian country. 2This date is [INSERT DATE 60 DAYS AFTER PUBLICATION IN THE FEDERAL REGISTER], unless otherwise noted.

* * * * *

22. Section 81.333 is amended by revising the table titled “New York—2015 8-Hour Ozone NAAQS

(Primary and Secondary)” to read as follows:

Page 83 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

§81.333 New York.

* * * * *

New York—2015 8-Hour Ozone NAAQS (Primary and Secondary) Designation Classification Designated area1 Date2 Type Date2 Type New York-Northern New Jersey-Long Nonattainment Moderate Island, NY-NJ-CT: Bronx County Kings County Nassau County New York County Queens County Richmond County Rockland County Suffolk County Westchester County Poughkeepsie Area, NY: Attainment/Unclassifiable Dutchess County Orange County Putnam County Kingston Area, NY: Attainment/Unclassifiable Ulster County Albany County 1/16/18 Attainment/Unclassifiable Allegany County 1/16/18 Attainment/Unclassifiable Broome County 1/16/18 Attainment/Unclassifiable Cattaraugus County 1/16/18 Attainment/Unclassifiable Cayuga County 1/16/18 Attainment/Unclassifiable Chautauqua County 1/16/18 Attainment/Unclassifiable Chemung County 1/16/18 Attainment/Unclassifiable Chenango County 1/16/18 Attainment/Unclassifiable Clinton County 1/16/18 Attainment/Unclassifiable Columbia County 1/16/18 Attainment/Unclassifiable Cortland County 1/16/18 Attainment/Unclassifiable Delaware County 1/16/18 Attainment/Unclassifiable Erie County 1/16/18 Attainment/Unclassifiable Essex County 1/16/18 Attainment/Unclassifiable Franklin County 1/16/18 Attainment/Unclassifiable Fulton County 1/16/18 Attainment/Unclassifiable Genesee County 1/16/18 Attainment/Unclassifiable Greene County 1/16/18 Attainment/Unclassifiable Hamilton County 1/16/18 Attainment/Unclassifiable Herkimer County 1/16/18 Attainment/Unclassifiable Jefferson County 1/16/18 Attainment/Unclassifiable Lewis County 1/16/18 Attainment/Unclassifiable Livingston County 1/16/18 Attainment/Unclassifiable Page 84 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

Madison County 1/16/18 Attainment/Unclassifiable Monroe County 1/16/18 Attainment/Unclassifiable Montgomery County 1/16/18 Attainment/Unclassifiable Niagara County 1/16/18 Attainment/Unclassifiable Oneida County 1/16/18 Attainment/Unclassifiable Onondaga County 1/16/18 Attainment/Unclassifiable Ontario County 1/16/18 Attainment/Unclassifiable Orleans County 1/16/18 Attainment/Unclassifiable Oswego County 1/16/18 Attainment/Unclassifiable Otsego County 1/16/18 Attainment/Unclassifiable Rensselaer County 1/16/18 Attainment/Unclassifiable St. Lawrence County 1/16/18 Attainment/Unclassifiable Saratoga County 1/16/18 Attainment/Unclassifiable Schenectady County 1/16/18 Attainment/Unclassifiable Schoharie County 1/16/18 Attainment/Unclassifiable Schuyler County 1/16/18 Attainment/Unclassifiable Seneca County 1/16/18 Attainment/Unclassifiable Steuben County 1/16/18 Attainment/Unclassifiable Sullivan County 1/16/18 Attainment/Unclassifiable Tioga County 1/16/18 Attainment/Unclassifiable Tompkins County 1/16/18 Attainment/Unclassifiable Warren County 1/16/18 Attainment/Unclassifiable Washington County 1/16/18 Attainment/Unclassifiable Wayne County 1/16/18 Attainment/Unclassifiable Wyoming County 1/16/18 Attainment/Unclassifiable Yates County 1/16/18 Attainment/Unclassifiable 1Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the boundaries of any area of Indian country in this table, including any area of Indian country located in the larger designation area. The inclusion of any Indian country in the designation area is not a determination that the state has regulatory authority under the Clean Air Act for such Indian country. 2This date is [INSERT DATE 60 DAYS AFTER PUBLICATION IN THE FEDERAL REGISTER], unless otherwise noted.

* * * * *

23. Section 81.336 is amended by revising the table titled “Ohio—2015 8-Hour Ozone NAAQS (Primary and Secondary)” to read as follows:

§81.336 Ohio.

* * * * *

Ohio—2015 8-Hour Ozone NAAQS (Primary and Secondary) Designation Classification Designated area1 Date2 Type Date2 Type Cincinnati, OH-KY: Nonattainment Marginal Page 85 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

Butler County Clermont County Hamilton County Warren County Cleveland, OH: Nonattainment Marginal Cuyahoga County Geauga County Lake County Lorain County Medina County Portage County Summit County Columbus, OH: Nonattainment Marginal Delaware County Fairfield County Franklin County Licking County Adams County 1/16/18 Attainment/Unclassifiable Allen County 1/16/18 Attainment/Unclassifiable Ashland County 1/16/18 Attainment/Unclassifiable Ashtabula County Attainment/Unclassifiable Athens County 1/16/18 Attainment/Unclassifiable Auglaize County 1/16/18 Attainment/Unclassifiable Belmont County 1/16/18 Attainment/Unclassifiable Brown County Attainment/Unclassifiable Carroll County Attainment/Unclassifiable Champaign County 1/16/18 Attainment/Unclassifiable Clark County 1/16/18 Attainment/Unclassifiable Clinton County Attainment/Unclassifiable Columbiana County 1/16/18 Attainment/Unclassifiable Coshocton County 1/16/18 Attainment/Unclassifiable Crawford County 1/16/18 Attainment/Unclassifiable Darke County 1/16/18 Attainment/Unclassifiable Defiance County 1/16/18 Attainment/Unclassifiable Erie County Attainment/Unclassifiable Fayette County Attainment/Unclassifiable Fulton County 1/16/18 Attainment/Unclassifiable Gallia County 1/16/18 Attainment/Unclassifiable Greene County Attainment/Unclassifiable Guernsey County Attainment/Unclassifiable Hancock County 1/16/18 Attainment/Unclassifiable Hardin County 1/16/18 Attainment/Unclassifiable Harrison County 1/16/18 Attainment/Unclassifiable Henry County 1/16/18 Attainment/Unclassifiable Highland County 1/16/18 Attainment/Unclassifiable Hocking County Attainment/Unclassifiable Holmes County 1/16/18 Attainment/Unclassifiable Page 86 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

Huron County Attainment/Unclassifiable Jackson County 1/16/18 Attainment/Unclassifiable Jefferson County 1/16/18 Attainment/Unclassifiable Knox County Attainment/Unclassifiable Lawrence County 1/16/18 Attainment/Unclassifiable Logan County Attainment/Unclassifiable Lucas County 1/16/18 Attainment/Unclassifiable Madison County Attainment/Unclassifiable Mahoning County 1/16/18 Attainment/Unclassifiable Marion County Attainment/Unclassifiable Meigs County 1/16/18 Attainment/Unclassifiable Mercer County 1/16/18 Attainment/Unclassifiable Miami County 1/16/18 Attainment/Unclassifiable Monroe County 1/16/18 Attainment/Unclassifiable Montgomery County Attainment/Unclassifiable Morgan County 1/16/18 Attainment/Unclassifiable Morrow County Attainment/Unclassifiable Muskingum County Attainment/Unclassifiable Noble County 1/16/18 Attainment/Unclassifiable Ottawa County 1/16/18 Attainment/Unclassifiable Paulding County 1/16/18 Attainment/Unclassifiable Perry County Attainment/Unclassifiable Pickaway County Attainment/Unclassifiable Pike County 1/16/18 Attainment/Unclassifiable Preble County Attainment/Unclassifiable Putnam County 1/16/18 Attainment/Unclassifiable Richland County 1/16/18 Attainment/Unclassifiable Ross County Attainment/Unclassifiable Sandusky County 1/16/18 Attainment/Unclassifiable Scioto County 1/16/18 Attainment/Unclassifiable Seneca County 1/16/18 Attainment/Unclassifiable Shelby County 1/16/18 Attainment/Unclassifiable Stark County Attainment/Unclassifiable Trumbull County Attainment/Unclassifiable Tuscarawas County Attainment/Unclassifiable Union County Attainment/Unclassifiable Van Wert County 1/16/18 Attainment/Unclassifiable Vinton County 1/16/18 Attainment/Unclassifiable Washington County 1/16/18 Attainment/Unclassifiable Wayne County 1/16/18 Attainment/Unclassifiable Williams County 1/16/18 Attainment/Unclassifiable Wood County 1/16/18 Attainment/Unclassifiable Wyandot County 1/16/18 Attainment/Unclassifiable 1Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the boundaries of any area of Indian country in this table, including any area of Indian country located in the larger designation area. The inclusion of any Indian country in the designation area is not a determination that the state has regulatory authority under the Clean Air Act for such Indian country. Page 87 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

2This date is [INSERT DATE 60 DAYS AFTER PUBLICATION IN THE FEDERAL REGISTER], unless otherwise noted.

* * * * *

24 Section 81.337 is amended by revising the table titled “Oklahoma—2015 8-Hour Ozone NAAQS

(Primary and Secondary)” to read as follows:

§81.337 Oklahoma.

* * * * *

Oklahoma—2015 8-Hour Ozone NAAQS (Primary and Secondary) Designation Classification Designated area1 Date2 Type Date2 Type Adair County 1/16/18 Attainment/Unclassifiable Alfalfa County 1/16/18 Attainment/Unclassifiable Atoka County 1/16/18 Attainment/Unclassifiable Beaver County 1/16/18 Attainment/Unclassifiable Beckham County 1/16/18 Attainment/Unclassifiable Blaine County 1/16/18 Attainment/Unclassifiable Bryan County Attainment/Unclassifiable Caddo County 1/16/18 Attainment/Unclassifiable Canadian County 1/16/18 Attainment/Unclassifiable Carter County 1/16/18 Attainment/Unclassifiable Cherokee County 1/16/18 Attainment/Unclassifiable Choctaw County 1/16/18 Attainment/Unclassifiable Cimarron County 1/16/18 Attainment/Unclassifiable Cleveland County 1/16/18 Attainment/Unclassifiable Coal County 1/16/18 Attainment/Unclassifiable Comanche County 1/16/18 Attainment/Unclassifiable Cotton County 1/16/18 Attainment/Unclassifiable Craig County 1/16/18 Attainment/Unclassifiable Creek County 1/16/18 Attainment/Unclassifiable Custer County 1/16/18 Attainment/Unclassifiable Delaware County 1/16/18 Attainment/Unclassifiable Dewey County 1/16/18 Attainment/Unclassifiable Ellis County 1/16/18 Attainment/Unclassifiable Garfield County 1/16/18 Attainment/Unclassifiable Garvin County 1/16/18 Attainment/Unclassifiable Grady County 1/16/18 Attainment/Unclassifiable Grant County 1/16/18 Attainment/Unclassifiable Greer County 1/16/18 Attainment/Unclassifiable Harmon County 1/16/18 Attainment/Unclassifiable Harper County 1/16/18 Attainment/Unclassifiable Haskell County 1/16/18 Attainment/Unclassifiable Page 88 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

Hughes County 1/16/18 Attainment/Unclassifiable Jackson County 1/16/18 Attainment/Unclassifiable Jefferson County 1/16/18 Attainment/Unclassifiable Johnston County 1/16/18 Attainment/Unclassifiable Kay County 1/16/18 Attainment/Unclassifiable Kingfisher County 1/16/18 Attainment/Unclassifiable Kiowa County 1/16/18 Attainment/Unclassifiable Latimer County 1/16/18 Attainment/Unclassifiable Le Flore County 1/16/18 Attainment/Unclassifiable Lincoln County 1/16/18 Attainment/Unclassifiable Logan County 1/16/18 Attainment/Unclassifiable Love County 1/16/18 Attainment/Unclassifiable McClain County 1/16/18 Attainment/Unclassifiable McCurtain County 1/16/18 Attainment/Unclassifiable McIntosh County 1/16/18 Attainment/Unclassifiable Major County 1/16/18 Attainment/Unclassifiable Marshall County 1/16/18 Attainment/Unclassifiable Mayes County 1/16/18 Attainment/Unclassifiable Murray County 1/16/18 Attainment/Unclassifiable Muskogee County 1/16/18 Attainment/Unclassifiable Noble County 1/16/18 Attainment/Unclassifiable Nowata County 1/16/18 Attainment/Unclassifiable Okfuskee County 1/16/18 Attainment/Unclassifiable Oklahoma County 1/16/18 Attainment/Unclassifiable Okmulgee County 1/16/18 Attainment/Unclassifiable Osage County 1/16/18 Attainment/Unclassifiable Ottawa County 1/16/18 Attainment/Unclassifiable Pawnee County 1/16/18 Attainment/Unclassifiable Payne County 1/16/18 Attainment/Unclassifiable Pittsburg County 1/16/18 Attainment/Unclassifiable Pontotoc County 1/16/18 Attainment/Unclassifiable Pottawatomie County 1/16/18 Attainment/Unclassifiable Pushmataha County 1/16/18 Attainment/Unclassifiable Roger Mills County 1/16/18 Attainment/Unclassifiable Rogers County 1/16/18 Attainment/Unclassifiable Seminole County 1/16/18 Attainment/Unclassifiable Sequoyah County 1/16/18 Attainment/Unclassifiable Stephens County 1/16/18 Attainment/Unclassifiable Texas County 1/16/18 Attainment/Unclassifiable Tillman County 1/16/18 Attainment/Unclassifiable Tulsa County 1/16/18 Attainment/Unclassifiable Wagoner County 1/16/18 Attainment/Unclassifiable Washington County 1/16/18 Attainment/Unclassifiable Washita County 1/16/18 Attainment/Unclassifiable Woods County 1/16/18 Attainment/Unclassifiable Woodward County 1/16/18 Attainment/Unclassifiable

Page 89 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

1Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the boundaries of any area of Indian country in this table, including any area of Indian country located in the larger designation area. The inclusion of any Indian country in the designation area is not a determination that the state has regulatory authority under the Clean Air Act for such Indian country. 2This date is [INSERT DATE 60 DAYS AFTER PUBLICATION IN THE FEDERAL REGISTER], unless otherwise noted.

* * * * *

25. Section 81.338 is amended by revising the table titled “Oregon—2015 8-Hour Ozone NAAQS

(Primary and Secondary)” to read as follows:

§81.338 Oregon.

* * * * *

Oregon—2015 8-Hour Ozone NAAQS (Primary and Secondary) Designation Classification Designated area1 Date2 Type Date2 Type Baker County 1/16/18 Attainment/Unclassifiable Benton County Attainment/Unclassifiable Clackamas County Attainment/Unclassifiable Clatsop County 1/16/18 Attainment/Unclassifiable Columbia County Attainment/Unclassifiable Coos County 1/16/18 Attainment/Unclassifiable Crook County 1/16/18 Attainment/Unclassifiable Curry County 1/16/18 Attainment/Unclassifiable Deschutes County 1/16/18 Attainment/Unclassifiable Douglas County 1/16/18 Attainment/Unclassifiable Gilliam County 1/16/18 Attainment/Unclassifiable Grant County 1/16/18 Attainment/Unclassifiable Harney County 1/16/18 Attainment/Unclassifiable Hood River County 1/16/18 Attainment/Unclassifiable Jackson County 1/16/18 Attainment/Unclassifiable Jefferson County 1/16/18 Attainment/Unclassifiable Josephine County 1/16/18 Attainment/Unclassifiable Klamath County 1/16/18 Attainment/Unclassifiable Lake County 1/16/18 Attainment/Unclassifiable Lane County 1/16/18 Attainment/Unclassifiable Lincoln County 1/16/18 Attainment/Unclassifiable Linn County Attainment/Unclassifiable Malheur County 1/16/18 Attainment/Unclassifiable Marion County Attainment/Unclassifiable Morrow County 1/16/18 Attainment/Unclassifiable Multnomah County Attainment/Unclassifiable Polk County Attainment/Unclassifiable

Page 90 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

Sherman County 1/16/18 Attainment/Unclassifiable Tillamook County 1/16/18 Attainment/Unclassifiable Umatilla County 1/16/18 Attainment/Unclassifiable Union County 1/16/18 Attainment/Unclassifiable Wallowa County 1/16/18 Attainment/Unclassifiable Wasco County 1/16/18 Attainment/Unclassifiable Washington County Attainment/Unclassifiable Wheeler County 1/16/18 Attainment/Unclassifiable Yamhill County Attainment/Unclassifiable 1Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the boundaries of any area of Indian country in this table, including any area of Indian country located in the larger designation area. The inclusion of any Indian country in the designation area is not a determination that the state has regulatory authority under the Clean Air Act for such Indian country. 2This date is [INSERT DATE 60 DAYS AFTER PUBLICATION IN THE FEDERAL REGISTER], unless otherwise noted.

* * * * *

26. Section 81.339 is amended by revising the table titled “Pennsylvania—2015 8-Hour Ozone NAAQS

(Primary and Secondary)” to read as follows:

§81.339 Pennsylvania.

* * * * *

Pennsylvania—2015 8-Hour Ozone NAAQS (Primary and Secondary) Designation Classification Designated area1 Date2 Type Date2 Type Philadelphia-Wilmington-Atlantic City, Nonattainment Marginal PA-NJ-MD-DE: Bucks County Chester County Delaware County Montgomery County Philadelphia County Adams County Attainment/Unclassifiable Allegheny County 1/16/18 Attainment/Unclassifiable Armstrong County 1/16/18 Attainment/Unclassifiable Beaver County 1/16/18 Attainment/Unclassifiable Bedford County 1/16/18 Attainment/Unclassifiable Berks County Attainment/Unclassifiable Blair County 1/16/18 Attainment/Unclassifiable Bradford County 1/16/18 Attainment/Unclassifiable Butler County 1/16/18 Attainment/Unclassifiable Cambria County 1/16/18 Attainment/Unclassifiable Cameron County 1/16/18 Attainment/Unclassifiable

Page 91 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

Centre County 1/16/18 Attainment/Unclassifiable Clarion County 1/16/18 Attainment/Unclassifiable Clearfield County 1/16/18 Attainment/Unclassifiable Clinton County 1/16/18 Attainment/Unclassifiable Columbia County 1/16/18 Attainment/Unclassifiable Crawford County 1/16/18 Attainment/Unclassifiable Cumberland County Attainment/Unclassifiable Dauphin County Attainment/Unclassifiable Elk County 1/16/18 Attainment/Unclassifiable Erie County 1/16/18 Attainment/Unclassifiable Fayette County 1/16/18 Attainment/Unclassifiable Forest County 1/16/18 Attainment/Unclassifiable Franklin County Attainment/Unclassifiable Fulton County 1/16/18 Attainment/Unclassifiable Greene County 1/16/18 Attainment/Unclassifiable Huntingdon County 1/16/18 Attainment/Unclassifiable Indiana County 1/16/18 Attainment/Unclassifiable Jefferson County 1/16/18 Attainment/Unclassifiable Juniata County 1/16/18 Attainment/Unclassifiable Lackawanna County 1/16/18 Attainment/Unclassifiable Lancaster County Attainment/Unclassifiable Lawrence County 1/16/18 Attainment/Unclassifiable Lebanon County Attainment/Unclassifiable Luzerne County 1/16/18 Attainment/Unclassifiable Lycoming County 1/16/18 Attainment/Unclassifiable McKean County 1/16/18 Attainment/Unclassifiable Mercer County 1/16/18 Attainment/Unclassifiable Mifflin County 1/16/18 Attainment/Unclassifiable Montour County 1/16/18 Attainment/Unclassifiable Northumberland County 1/16/18 Attainment/Unclassifiable Perry County Attainment/Unclassifiable Potter County 1/16/18 Attainment/Unclassifiable Schuylkill County Attainment/Unclassifiable Snyder County 1/16/18 Attainment/Unclassifiable Somerset County 1/16/18 Attainment/Unclassifiable Sullivan County 1/16/18 Attainment/Unclassifiable Susquehanna County 1/16/18 Attainment/Unclassifiable Tioga County 1/16/18 Attainment/Unclassifiable Union County 1/16/18 Attainment/Unclassifiable Venango County 1/16/18 Attainment/Unclassifiable Warren County 1/16/18 Attainment/Unclassifiable Washington County 1/16/18 Attainment/Unclassifiable Wayne County 1/16/18 Attainment/Unclassifiable Westmoreland County 1/16/18 Attainment/Unclassifiable Wyoming County 1/16/18 Attainment/Unclassifiable York County Attainment/Unclassifiable

Page 92 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

1Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the boundaries of any area of Indian country in this table, including any area of Indian country located in the larger designation area. The inclusion of any Indian country in the designation area is not a determination that the state has regulatory authority under the Clean Air Act for such Indian country. 2This date is [INSERT DATE 60 DAYS AFTER PUBLICATION IN THE FEDERAL REGISTER], unless otherwise noted.

* * * * *

27. Section 81.340 is amended by revising the table titled “Rhode Island—2015 8-Hour Ozone NAAQS

(Primary and Secondary)” to read as follows:

§81.340 Rhode Island.

* * * * *

Rhode Island—2015 8-Hour Ozone NAAQS (Primary and Secondary) Designation Classification Designated area1 Date2 Type Date2 Type Bristol County 1/16/18 Attainment/Unclassifiable Kent County Attainment/Unclassifiable Newport County 1/16/18 Attainment/Unclassifiable Providence County 1/16/18 Attainment/Unclassifiable Washington County Attainment/Unclassifiable 1Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the boundaries of any area of Indian country in this table, including any area of Indian country located in the larger designation area. The inclusion of any Indian country in the designation area is not a determination that the state has regulatory authority under the Clean Air Act for such Indian country. 2This date is [INSERT DATE 60 DAYS AFTER PUBLICATION IN THE FEDERAL REGISTER], unless otherwise noted.

* * * * *

28. Section 81.344 is amended by revising the table titled “Texas—2015 8-Hour Ozone NAAQS

(Primary and Secondary)” to read as follows:

§81.344 Texas.

* * * * *

Texas—2015 8-Hour Ozone NAAQS (Primary and Secondary) Designation Classification Designated area1 Date2 Type Date2 Type Dallas-Fort Worth, TX: Nonattainment Marginal Collin County Dallas County Page 93 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

Denton County Ellis County Johnson County Kaufman County Parker County Tarrant County Wise County Houston-Galveston-Brazoria, TX: Nonattainment Marginal Brazoria County Chambers County Fort Bend County Galveston County Harris County Montgomery County Rest of State: Anderson County 1/16/18 Attainment/Unclassifiable Andrews County 1/16/18 Attainment/Unclassifiable Angelina County 1/16/18 Attainment/Unclassifiable Aransas County 1/16/18 Attainment/Unclassifiable Archer County 1/16/18 Attainment/Unclassifiable Armstrong County 1/16/18 Attainment/Unclassifiable Austin County Attainment/Unclassifiable Bailey County 1/16/18 Attainment/Unclassifiable Bastrop County 1/16/18 Attainment/Unclassifiable Baylor County 1/16/18 Attainment/Unclassifiable Bee County 1/16/18 Attainment/Unclassifiable Bell County 1/16/18 Attainment/Unclassifiable Blanco County 1/16/18 Attainment/Unclassifiable Borden County 1/16/18 Attainment/Unclassifiable Bosque County Attainment/Unclassifiable Bowie County 1/16/18 Attainment/Unclassifiable Brazos County 1/16/18 Attainment/Unclassifiable Brewster County 1/16/18 Attainment/Unclassifiable Briscoe County 1/16/18 Attainment/Unclassifiable Brooks County 1/16/18 Attainment/Unclassifiable Brown County 1/16/18 Attainment/Unclassifiable Burleson County 1/16/18 Attainment/Unclassifiable Burnet County 1/16/18 Attainment/Unclassifiable Caldwell County 1/16/18 Attainment/Unclassifiable Calhoun County 1/16/18 Attainment/Unclassifiable Callahan County 1/16/18 Attainment/Unclassifiable Cameron County 1/16/18 Attainment/Unclassifiable Camp County 1/16/18 Attainment/Unclassifiable Carson County 1/16/18 Attainment/Unclassifiable Cass County 1/16/18 Attainment/Unclassifiable Castro County 1/16/18 Attainment/Unclassifiable Cherokee County 1/16/18 Attainment/Unclassifiable Page 94 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

Childress County 1/16/18 Attainment/Unclassifiable Clay County 1/16/18 Attainment/Unclassifiable Cochran County 1/16/18 Attainment/Unclassifiable Coke County 1/16/18 Attainment/Unclassifiable Coleman County 1/16/18 Attainment/Unclassifiable Collingsworth County 1/16/18 Attainment/Unclassifiable Colorado County 1/16/18 Attainment/Unclassifiable Comanche County 1/16/18 Attainment/Unclassifiable Concho County 1/16/18 Attainment/Unclassifiable Coryell County 1/16/18 Attainment/Unclassifiable Cooke County Attainment/Unclassifiable Cottle County 1/16/18 Attainment/Unclassifiable Crane County 1/16/18 Attainment/Unclassifiable Crockett County 1/16/18 Attainment/Unclassifiable Crosby County 1/16/18 Attainment/Unclassifiable Culberson County 1/16/18 Attainment/Unclassifiable Dallam County 1/16/18 Attainment/Unclassifiable Dawson County 1/16/18 Attainment/Unclassifiable Deaf Smith County 1/16/18 Attainment/Unclassifiable Delta County 1/16/18 Attainment/Unclassifiable DeWitt County 1/16/18 Attainment/Unclassifiable Dickens County 1/16/18 Attainment/Unclassifiable Dimmit County 1/16/18 Attainment/Unclassifiable Donley County 1/16/18 Attainment/Unclassifiable Duval County 1/16/18 Attainment/Unclassifiable Eastland County 1/16/18 Attainment/Unclassifiable Ector County 1/16/18 Attainment/Unclassifiable Edwards County 1/16/18 Attainment/Unclassifiable El Paso County Attainment/Unclassifiable Erath County 1/16/18 Attainment/Unclassifiable Falls County 1/16/18 Attainment/Unclassifiable Fannin County Attainment/Unclassifiable Fayette County 1/16/18 Attainment/Unclassifiable Fisher County 1/16/18 Attainment/Unclassifiable Floyd County 1/16/18 Attainment/Unclassifiable Foard County 1/16/18 Attainment/Unclassifiable Franklin County 1/16/18 Attainment/Unclassifiable Freestone County 1/16/18 Attainment/Unclassifiable Frio County 1/16/18 Attainment/Unclassifiable Gaines County 1/16/18 Attainment/Unclassifiable Garza County 1/16/18 Attainment/Unclassifiable Gillespie County 1/16/18 Attainment/Unclassifiable Glasscock County 1/16/18 Attainment/Unclassifiable Goliad County 1/16/18 Attainment/Unclassifiable Gonzales County 1/16/18 Attainment/Unclassifiable Gray County 1/16/18 Attainment/Unclassifiable Grayson County Attainment/Unclassifiable Page 95 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

Gregg County 1/16/18 Attainment/Unclassifiable Grimes County Attainment/Unclassifiable Hale County 1/16/18 Attainment/Unclassifiable Hall County 1/16/18 Attainment/Unclassifiable Hamilton County 1/16/18 Attainment/Unclassifiable Hansford County 1/16/18 Attainment/Unclassifiable Hardeman County 1/16/18 Attainment/Unclassifiable Hardin County 1/16/18 Attainment/Unclassifiable Harrison County 1/16/18 Attainment/Unclassifiable Hartley County 1/16/18 Attainment/Unclassifiable Haskell County 1/16/18 Attainment/Unclassifiable Hays County 1/16/18 Attainment/Unclassifiable Hemphill County 1/16/18 Attainment/Unclassifiable Henderson County Attainment/Unclassifiable Hidalgo County 1/16/18 Attainment/Unclassifiable Hill County Attainment/Unclassifiable Hockley County 1/16/18 Attainment/Unclassifiable Hood County Attainment/Unclassifiable Hopkins County Attainment/Unclassifiable Houston County 1/16/18 Attainment/Unclassifiable Howard County 1/16/18 Attainment/Unclassifiable Hudspeth County Attainment/Unclassifiable Hunt County Attainment/Unclassifiable Hutchinson County 1/16/18 Attainment/Unclassifiable Irion County 1/16/18 Attainment/Unclassifiable Jack County Attainment/Unclassifiable Jackson County 1/16/18 Attainment/Unclassifiable Jasper County 1/16/18 Attainment/Unclassifiable Jeff Davis County 1/16/18 Attainment/Unclassifiable Jefferson County 1/16/18 Attainment/Unclassifiable Jim Hogg County 1/16/18 Attainment/Unclassifiable Jim Wells County 1/16/18 Attainment/Unclassifiable Jones County 1/16/18 Attainment/Unclassifiable Karnes County 1/16/18 Attainment/Unclassifiable Kenedy County 1/16/18 Attainment/Unclassifiable Kent County 1/16/18 Attainment/Unclassifiable Kerr County 1/16/18 Attainment/Unclassifiable Kimble County 1/16/18 Attainment/Unclassifiable King County 1/16/18 Attainment/Unclassifiable Kinney County 1/16/18 Attainment/Unclassifiable Kleberg County 1/16/18 Attainment/Unclassifiable Knox County 1/16/18 Attainment/Unclassifiable Lamar County 1/16/18 Attainment/Unclassifiable Lamb County 1/16/18 Attainment/Unclassifiable Lampasas County 1/16/18 Attainment/Unclassifiable La Salle County 1/16/18 Attainment/Unclassifiable Lavaca County 1/16/18 Attainment/Unclassifiable Page 96 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

Lee County 1/16/18 Attainment/Unclassifiable Leon County 1/16/18 Attainment/Unclassifiable Liberty County Attainment/Unclassifiable Limestone County 1/16/18 Attainment/Unclassifiable Lipscomb County 1/16/18 Attainment/Unclassifiable Live Oak County 1/16/18 Attainment/Unclassifiable Llano County 1/16/18 Attainment/Unclassifiable Loving County 1/16/18 Attainment/Unclassifiable Lubbock County 1/16/18 Attainment/Unclassifiable Lynn County 1/16/18 Attainment/Unclassifiable Matagorda County Attainment/Unclassifiable McCulloch County 1/16/18 Attainment/Unclassifiable McLennan County 1/16/18 Attainment/Unclassifiable McMullen County 1/16/18 Attainment/Unclassifiable Madison County 1/16/18 Attainment/Unclassifiable Marion County 1/16/18 Attainment/Unclassifiable Martin County 1/16/18 Attainment/Unclassifiable Mason County 1/16/18 Attainment/Unclassifiable Maverick County 1/16/18 Attainment/Unclassifiable Menard County 1/16/18 Attainment/Unclassifiable Midland County 1/16/18 Attainment/Unclassifiable Milam County 1/16/18 Attainment/Unclassifiable Mills County 1/16/18 Attainment/Unclassifiable Mitchell County 1/16/18 Attainment/Unclassifiable Montague County 1/16/18 Attainment/Unclassifiable Moore County 1/16/18 Attainment/Unclassifiable Morris County 1/16/18 Attainment/Unclassifiable Motley County 1/16/18 Attainment/Unclassifiable Nacogdoches County 1/16/18 Attainment/Unclassifiable Navarro County Attainment/Unclassifiable Newton County 1/16/18 Attainment/Unclassifiable Nolan County 1/16/18 Attainment/Unclassifiable Nueces County 1/16/18 Attainment/Unclassifiable Ochiltree County 1/16/18 Attainment/Unclassifiable Oldham County 1/16/18 Attainment/Unclassifiable Orange County 1/16/18 Attainment/Unclassifiable Palo Pinto County Attainment/Unclassifiable Panola County 1/16/18 Attainment/Unclassifiable Parmer County 1/16/18 Attainment/Unclassifiable Pecos County 1/16/18 Attainment/Unclassifiable Polk County 1/16/18 Attainment/Unclassifiable Potter County 1/16/18 Attainment/Unclassifiable Presidio County 1/16/18 Attainment/Unclassifiable Rains County 1/16/18 Attainment/Unclassifiable Randall County 1/16/18 Attainment/Unclassifiable Reagan County 1/16/18 Attainment/Unclassifiable Real County 1/16/18 Attainment/Unclassifiable Page 97 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

Red River County 1/16/18 Attainment/Unclassifiable Reeves County 1/16/18 Attainment/Unclassifiable Refugio County 1/16/18 Attainment/Unclassifiable Roberts County 1/16/18 Attainment/Unclassifiable Robertson County 1/16/18 Attainment/Unclassifiable Rockwall County Attainment/Unclassifiable Runnels County 1/16/18 Attainment/Unclassifiable Rusk County 1/16/18 Attainment/Unclassifiable Sabine County 1/16/18 Attainment/Unclassifiable San Augustine County 1/16/18 Attainment/Unclassifiable San Jacinto County Attainment/Unclassifiable San Patricio County 1/16/18 Attainment/Unclassifiable San Saba County 1/16/18 Attainment/Unclassifiable Schleicher County 1/16/18 Attainment/Unclassifiable Scurry County 1/16/18 Attainment/Unclassifiable Shackelford County 1/16/18 Attainment/Unclassifiable Shelby County 1/16/18 Attainment/Unclassifiable Sherman County 1/16/18 Attainment/Unclassifiable Smith County 1/16/18 Attainment/Unclassifiable Somervell County Attainment/Unclassifiable Starr County 1/16/18 Attainment/Unclassifiable Stephens County 1/16/18 Attainment/Unclassifiable Sterling County 1/16/18 Attainment/Unclassifiable Stonewall County 1/16/18 Attainment/Unclassifiable Sutton County 1/16/18 Attainment/Unclassifiable Swisher County 1/16/18 Attainment/Unclassifiable Taylor County 1/16/18 Attainment/Unclassifiable Terrell County 1/16/18 Attainment/Unclassifiable Terry County 1/16/18 Attainment/Unclassifiable Throckmorton County 1/16/18 Attainment/Unclassifiable Titus County 1/16/18 Attainment/Unclassifiable Tom Green County 1/16/18 Attainment/Unclassifiable Travis County 1/16/18 Attainment/Unclassifiable Trinity County Attainment/Unclassifiable Tyler County 1/16/18 Attainment/Unclassifiable Upshur County 1/16/18 Attainment/Unclassifiable Upton County 1/16/18 Attainment/Unclassifiable Uvalde County 1/16/18 Attainment/Unclassifiable Val Verde County 1/16/18 Attainment/Unclassifiable Van Zandt County 1/16/18 Attainment/Unclassifiable Victoria County 1/16/18 Attainment/Unclassifiable Ward County 1/16/18 Attainment/Unclassifiable Webb County 1/16/18 Attainment/Unclassifiable Walker County Attainment/Unclassifiable Waller County Attainment/Unclassifiable Washington County Attainment/Unclassifiable Wharton County Attainment/Unclassifiable Page 98 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

Wheeler County 1/16/18 Attainment/Unclassifiable Wichita County 1/16/18 Attainment/Unclassifiable Wilbarger County 1/16/18 Attainment/Unclassifiable Willacy County 1/16/18 Attainment/Unclassifiable Williamson County 1/16/18 Attainment/Unclassifiable Winkler County 1/16/18 Attainment/Unclassifiable Wood County 1/16/18 Attainment/Unclassifiable Yoakum County 1/16/18 Attainment/Unclassifiable Young County 1/16/18 Attainment/Unclassifiable Zapata County 1/16/18 Attainment/Unclassifiable Zavala County 1/16/18 Attainment/Unclassifiable 1Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the boundaries of any area of Indian country in this table, including any area of Indian country located in the larger designation area. The inclusion of any Indian country in the designation area is not a determination that the state has regulatory authority under the Clean Air Act for such Indian country. 2This date is [INSERT DATE 60 DAYS AFTER PUBLICATION IN THE FEDERAL REGISTER], unless otherwise noted.

* * * * *

29. Section 81.345 is amended by revising the table titled “Utah—2015 8-Hour Ozone NAAQS (Primary and Secondary)” to read as follows:

§81.345 Utah.

* * * * *

Utah—2015 8-Hour Ozone NAAQS (Primary and Secondary) Designation Classification Designated area1 Date2 Type Date2 Type Northern Wasatch Front, UT: Nonattainment Marginal Weber County (part) All portions of Weber County west of and including Townships 5, 6, and that portion of 7 North Range 1 West that are west of the ridgeline that traces the Wasatch Mountains from the southeast corner of the township to the easternmost extension of the county boundary within the township. Tooele County (part) In Tooele County, the following Townships or portions thereof as noted (including Tooele City): Page 99 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

o Township 1 South Range 3 West o Township 2 South Range 3 West o Township 3 South Range 3 West o Township 3 South Range 4 West o Township 2 South Range 4 West o Township 2 South Range 5 West o Township 3 South Range 5 West o Township 3 South Range 6 West o Township 2 South Range 6 West o Township 1 South Range 6 West o Township 1 South Range 5 West o Township 1 South Range 4 West o Township 1 South Range 7 West o Township 2 South Range 7 West o Township 3 South Range 7 West o All Sections within Township 4 South Range 7 West except for Sections 29, 30, 31 and 32 Township 4 South Range 7 West o Township 4 South Range 6 West o Township 4 South Range 5 West o Township 4 South Range 4 West o Township 4 South Range 3 West Salt Lake County Davis County Southern Wasatch Front, UT: Nonattainment Marginal Utah County (part)

Page 100 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

All portions of Utah County west of and including any portion of the following townships located within Utah County: o Township 3 South Range 1 East o Township 4 South Range 2 East o Township 5 South Range 3 East o Township 6 South Range 3 East o Township 7 South Range 3 East o Township 8 South Range 3 East o Township 9 South Range 3 East o Township 10 South Range 2 East Uinta Basin, UT3: Nonattainment Marginal Duchesne County (part) All land in Duchesne County below a contiguous external perimeter of 6,250 ft. in elevation. All areas within that contiguous external perimeter are included in the nonattainment area – including mesas and buttes which may have an elevation greater than 6,250 ft., but which are surrounded on all sides by land lower than 6,250 ft. Additionally, areas that fall outside the 6,250 ft. contiguous external perimeter that have elevations less than 6,250 ft. are excluded from the nonattainment area. The boundary is defined by the 6,250 ft. contour line created from the 2013 USGS 10-meter seamless Digital Elevation Model (USGS NED n41w110 1/3 arc-second 2013 1 x 1 degree IMG).

Page 101 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

Uintah County (part) All land in Uintah County below a contiguous external perimeter of 6,250 ft. in elevation. All areas within that contiguous external perimeter are included in the nonattainment area – including mesas and buttes which may have an elevation greater than 6,250 ft., but which are surrounded on all sides by land lower than 6,250 ft. Additionally, areas that fall outside the 6,250 ft. contiguous external perimeter that have elevations less than 6,250 ft. are excluded from the nonattainment area. The boundary is defined by the 6,250 ft. contour line created from the 2013 USGS 10-meter seamless Digital Elevation Model (USGS NED n41w110 1/3 arc-second 2013 1 x 1 degree IMG). Beaver County 1/16/18 Attainment/Unclassifiable Box Elder Attainment/Unclassifiable Cache County Attainment/Unclassifiable Carbon County Attainment/Unclassifiable Daggett County Attainment/Unclassifiable Duchesne County (part) remainder Attainment/Unclassifiable Emery County 1/16/18 Attainment/Unclassifiable Garfield County 1/16/18 Attainment/Unclassifiable Grand County Attainment/Unclassifiable Iron County 1/16/18 Attainment/Unclassifiable Juab County Attainment/Unclassifiable Kane County 1/16/18 Attainment/Unclassifiable Millard County 1/16/18 Attainment/Unclassifiable Morgan County Attainment/Unclassifiable Piute County 1/16/18 Attainment/Unclassifiable Rich County Attainment/Unclassifiable San Juan County 1/16/18 Attainment/Unclassifiable Sanpete County Attainment/Unclassifiable Sevier County 1/16/18 Attainment/Unclassifiable Summit County Attainment/Unclassifiable Tooele County (part) remainder Attainment/Unclassifiable Uintah County (part) remainder Attainment/Unclassifiable Utah County (part) remainder Attainment/Unclassifiable Wasatch County Attainment/Unclassifiable Washington County 1/16/18 Attainment/Unclassifiable Wayne County 1/16/18 Attainment/Unclassifiable

Page 102 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

Weber County (part) remainder Attainment/Unclassifiable 1Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the boundaries of any area of Indian country in this table, including any area of Indian country located in the larger designation area. The inclusion of any Indian country in the designation area is not a determination that the state has regulatory authority under the Clean Air Act for such Indian country. 2This date is [INSERT DATE 60 DAYS AFTER PUBLICATION IN THE FEDERAL REGISTER], unless otherwise noted. 3 The EPA is designating portions of the Uinta Basin as “nonattainment,” including both Tribal and State lands. The Ute Tribe has air quality planning jurisdiction in the areas of Indian country included in the Uinta Basin nonattainment area while the State of Utah has air quality planning jurisdiction in the areas of State land included in the Uinta Basin nonattainment area.

* * * * *

30. Section 81.346 is amended by revising the table titled “Virginia—2015 8-Hour Ozone NAAQS

(Primary and Secondary)” to read as follows:

§81.347 Virginia.

* * * * *

Virginia—2015 8-Hour Ozone NAAQS (Primary and Secondary) Designation Classification Designated area1 Date2 Type Date2 Type Washington, DC-MD-VA: Nonattainment Marginal Arlington County Fairfax County Loudoun County Prince William County Alexandria City Fairfax City Falls Church City Manassas City Manassas Park City Accomack County 1/16/18 Attainment/Unclassifiable Albemarle County 1/16/18 Attainment/Unclassifiable Alleghany County 1/16/18 Attainment/Unclassifiable Amelia County 1/16/18 Attainment/Unclassifiable Amherst County 1/16/18 Attainment/Unclassifiable Appomattox County 1/16/18 Attainment/Unclassifiable Augusta County 1/16/18 Attainment/Unclassifiable Bath County 1/16/18 Attainment/Unclassifiable Bedford County 1/16/18 Attainment/Unclassifiable Bland County 1/16/18 Attainment/Unclassifiable Botetourt County 1/16/18 Attainment/Unclassifiable Brunswick County 1/16/18 Attainment/Unclassifiable

Page 103 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

Buchanan County 1/16/18 Attainment/Unclassifiable Buckingham County 1/16/18 Attainment/Unclassifiable Campbell County 1/16/18 Attainment/Unclassifiable Caroline County 1/16/18 Attainment/Unclassifiable Carroll County 1/16/18 Attainment/Unclassifiable Charles City County 1/16/18 Attainment/Unclassifiable Charlotte County 1/16/18 Attainment/Unclassifiable Chesterfield County 1/16/18 Attainment/Unclassifiable Clarke County Attainment/Unclassifiable Craig County 1/16/18 Attainment/Unclassifiable Culpeper County Attainment/Unclassifiable Cumberland County 1/16/18 Attainment/Unclassifiable Dickenson County 1/16/18 Attainment/Unclassifiable Dinwiddie County 1/16/18 Attainment/Unclassifiable Essex County 1/16/18 Attainment/Unclassifiable Fauquier County Attainment/Unclassifiable Floyd County 1/16/18 Attainment/Unclassifiable Fluvanna County 1/16/18 Attainment/Unclassifiable Franklin County 1/16/18 Attainment/Unclassifiable Frederick County Attainment/Unclassifiable Fredericksburg City Attainment/Unclassifiable Giles County 1/16/18 Attainment/Unclassifiable Gloucester County 1/16/18 Attainment/Unclassifiable Goochland County 1/16/18 Attainment/Unclassifiable Grayson County 1/16/18 Attainment/Unclassifiable Greene County 1/16/18 Attainment/Unclassifiable Greensville County 1/16/18 Attainment/Unclassifiable Halifax County 1/16/18 Attainment/Unclassifiable Hanover County 1/16/18 Attainment/Unclassifiable Henrico County 1/16/18 Attainment/Unclassifiable Henry County 1/16/18 Attainment/Unclassifiable Highland County 1/16/18 Attainment/Unclassifiable Isle of Wight County 1/16/18 Attainment/Unclassifiable James City County 1/16/18 Attainment/Unclassifiable King and Queen County 1/16/18 Attainment/Unclassifiable King George County 1/16/18 Attainment/Unclassifiable King William County 1/16/18 Attainment/Unclassifiable Lancaster County 1/16/18 Attainment/Unclassifiable Lee County 1/16/18 Attainment/Unclassifiable Louisa County 1/16/18 Attainment/Unclassifiable Lunenburg County 1/16/18 Attainment/Unclassifiable Madison County 1/16/18 Attainment/Unclassifiable Mathews County 1/16/18 Attainment/Unclassifiable Mecklenburg County 1/16/18 Attainment/Unclassifiable Middlesex County 1/16/18 Attainment/Unclassifiable Montgomery County 1/16/18 Attainment/Unclassifiable Nelson County 1/16/18 Attainment/Unclassifiable Page 104 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

New Kent County 1/16/18 Attainment/Unclassifiable Northampton County 1/16/18 Attainment/Unclassifiable Northumberland County 1/16/18 Attainment/Unclassifiable Nottoway County 1/16/18 Attainment/Unclassifiable Orange County 1/16/18 Attainment/Unclassifiable Page County 1/16/18 Attainment/Unclassifiable Patrick County 1/16/18 Attainment/Unclassifiable Pittsylvania County 1/16/18 Attainment/Unclassifiable Powhatan County 1/16/18 Attainment/Unclassifiable Prince Edward County 1/16/18 Attainment/Unclassifiable Prince George County 1/16/18 Attainment/Unclassifiable Pulaski County 1/16/18 Attainment/Unclassifiable Rappahannock County Attainment/Unclassifiable Richmond County 1/16/18 Attainment/Unclassifiable Roanoke County 1/16/18 Attainment/Unclassifiable Rockbridge County 1/16/18 Attainment/Unclassifiable Rockingham County 1/16/18 Attainment/Unclassifiable Russell County 1/16/18 Attainment/Unclassifiable Scott County 1/16/18 Attainment/Unclassifiable Shenandoah County 1/16/18 Attainment/Unclassifiable Smyth County 1/16/18 Attainment/Unclassifiable Southampton County 1/16/18 Attainment/Unclassifiable Spotsylvania County Attainment/Unclassifiable Stafford County Attainment/Unclassifiable Surry County 1/16/18 Attainment/Unclassifiable Sussex County 1/16/18 Attainment/Unclassifiable Tazewell County 1/16/18 Attainment/Unclassifiable Warren County Attainment/Unclassifiable Washington County 1/16/18 Attainment/Unclassifiable Westmoreland County 1/16/18 Attainment/Unclassifiable Winchester City Attainment/Unclassifiable Wise County 1/16/18 Attainment/Unclassifiable Wythe County 1/16/18 Attainment/Unclassifiable York County 1/16/18 Attainment/Unclassifiable Bristol City 1/16/18 Attainment/Unclassifiable Buena Vista City 1/16/18 Attainment/Unclassifiable Charlottesville City 1/16/18 Attainment/Unclassifiable Chesapeake City 1/16/18 Attainment/Unclassifiable Colonial Heights City 1/16/18 Attainment/Unclassifiable Covington City 1/16/18 Attainment/Unclassifiable Danville City 1/16/18 Attainment/Unclassifiable Emporia City 1/16/18 Attainment/Unclassifiable Franklin City 1/16/18 Attainment/Unclassifiable Galax City 1/16/18 Attainment/Unclassifiable Hampton City 1/16/18 Attainment/Unclassifiable Harrisonburg City 1/16/18 Attainment/Unclassifiable Hopewell City 1/16/18 Attainment/Unclassifiable Page 105 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

Lexington City 1/16/18 Attainment/Unclassifiable Lynchburg City 1/16/18 Attainment/Unclassifiable Martinsville City 1/16/18 Attainment/Unclassifiable Newport News City 1/16/18 Attainment/Unclassifiable Norfolk City 1/16/18 Attainment/Unclassifiable Norton City 1/16/18 Attainment/Unclassifiable Petersburg City 1/16/18 Attainment/Unclassifiable Poquoson City 1/16/18 Attainment/Unclassifiable Portsmouth City 1/16/18 Attainment/Unclassifiable Radford City 1/16/18 Attainment/Unclassifiable Richmond City 1/16/18 Attainment/Unclassifiable Roanoke City 1/16/18 Attainment/Unclassifiable Salem City 1/16/18 Attainment/Unclassifiable Staunton City 1/16/18 Attainment/Unclassifiable Suffolk City 1/16/18 Attainment/Unclassifiable Virginia Beach City 1/16/18 Attainment/Unclassifiable Waynesboro City 1/16/18 Attainment/Unclassifiable Williamsburg City 1/16/18 Attainment/Unclassifiable 1Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the boundaries of any area of Indian country in this table, including any area of Indian country located in the larger designation area. The inclusion of any Indian country in the designation area is not a determination that the state has regulatory authority under the Clean Air Act for such Indian country. 2This date is [INSERT DATE 60 DAYS AFTER PUBLICATION IN THE FEDERAL REGISTER], unless otherwise noted.

* * * * *

31. Section 81.348 is amended by revising the table titled “Washington—2015 8-Hour Ozone NAAQS

(Primary and Secondary)” to read as follows:

§81.348 Washington.

* * * * *

Washington—2015 8-Hour Ozone NAAQS (Primary and Secondary) Designation Classification Designated area1 Date2 Type Date2 Type Tri-Cities Area, WA: 1/16/18 Unclassifiable Benton County Franklin County Walla Walla County Adams County 1/16/18 Attainment/Unclassifiable Asotin County 1/16/18 Attainment/Unclassifiable Chelan County 1/16/18 Attainment/Unclassifiable Clallam County 1/16/18 Attainment/Unclassifiable Clark County Attainment/Unclassifiable Page 106 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

Columbia County 1/16/18 Attainment/Unclassifiable Cowlitz County Attainment/Unclassifiable Douglas County 1/16/18 Attainment/Unclassifiable Ferry County 1/16/18 Attainment/Unclassifiable Garfield County 1/16/18 Attainment/Unclassifiable Grant County 1/16/18 Attainment/Unclassifiable Grays Harbor County 1/16/18 Attainment/Unclassifiable Island County 1/16/18 Attainment/Unclassifiable Jefferson County 1/16/18 Attainment/Unclassifiable King County 1/16/18 Attainment/Unclassifiable Kitsap County 1/16/18 Attainment/Unclassifiable Kittitas County 1/16/18 Attainment/Unclassifiable Klickitat County 1/16/18 Attainment/Unclassifiable Lewis County 1/16/18 Attainment/Unclassifiable Lincoln County 1/16/18 Attainment/Unclassifiable Mason County 1/16/18 Attainment/Unclassifiable Okanogan County 1/16/18 Attainment/Unclassifiable Pacific County 1/16/18 Attainment/Unclassifiable Pend Oreille County 1/16/18 Attainment/Unclassifiable Pierce County 1/16/18 Attainment/Unclassifiable San Juan County 1/16/18 Attainment/Unclassifiable Skagit County 1/16/18 Attainment/Unclassifiable Skamania County Attainment/Unclassifiable Snohomish County 1/16/18 Attainment/Unclassifiable Spokane County 1/16/18 Attainment/Unclassifiable Stevens County 1/16/18 Attainment/Unclassifiable Thurston County 1/16/18 Attainment/Unclassifiable Wahkiakum County 1/16/18 Attainment/Unclassifiable Whatcom County 1/16/18 Attainment/Unclassifiable Whitman County 1/16/18 Attainment/Unclassifiable Yakima County 1/16/18 Attainment/Unclassifiable 1Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the boundaries of any area of Indian country in this table, including any area of Indian country located in the larger designation area. The inclusion of any Indian country in the designation area is not a determination that the state has regulatory authority under the Clean Air Act for such Indian country. 2This date is [INSERT DATE 60 DAYS AFTER PUBLICATION IN THE FEDERAL REGISTER], unless otherwise noted.

* * * * *

32. Section 81.349 is amended by revising the table titled “West Virginia—2015 8-Hour Ozone NAAQS

(Primary and Secondary)” to read as follows:

§81.349 West Virginia.

* * * * *

Page 107 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

West Virginia—2015 8-Hour Ozone NAAQS (Primary and Secondary) Designation Classification Designated area1 Date2 Type Date Type Barbour County 1/16/18 Attainment/Unclassifiable Berkeley County Attainment/Unclassifiable Boone County 1/16/18 Attainment/Unclassifiable Braxton County 1/16/18 Attainment/Unclassifiable Brooke County 1/16/18 Attainment/Unclassifiable Cabell County 1/16/18 Attainment/Unclassifiable Calhoun County 1/16/18 Attainment/Unclassifiable Clay County 1/16/18 Attainment/Unclassifiable Doddridge County 1/16/18 Attainment/Unclassifiable Fayette County 1/16/18 Attainment/Unclassifiable Gilmer County 1/16/18 Attainment/Unclassifiable Grant County 1/16/18 Attainment/Unclassifiable Greenbrier County 1/16/18 Attainment/Unclassifiable Hampshire County Attainment/Unclassifiable Hancock County 1/16/18 Attainment/Unclassifiable Hardy County 1/16/18 Attainment/Unclassifiable Harrison County 1/16/18 Attainment/Unclassifiable Jackson County 1/16/18 Attainment/Unclassifiable Jefferson County Attainment/Unclassifiable Kanawha County 1/16/18 Attainment/Unclassifiable Lewis County 1/16/18 Attainment/Unclassifiable Lincoln County 1/16/18 Attainment/Unclassifiable Logan County 1/16/18 Attainment/Unclassifiable McDowell County 1/16/18 Attainment/Unclassifiable Marion County 1/16/18 Attainment/Unclassifiable Marshall County 1/16/18 Attainment/Unclassifiable Mason County 1/16/18 Attainment/Unclassifiable Mercer County 1/16/18 Attainment/Unclassifiable Mineral County 1/16/18 Attainment/Unclassifiable Mingo County 1/16/18 Attainment/Unclassifiable Monongalia County 1/16/18 Attainment/Unclassifiable Monroe County 1/16/18 Attainment/Unclassifiable Morgan County 1/16/18 Attainment/Unclassifiable Nicholas County 1/16/18 Attainment/Unclassifiable Ohio County 1/16/18 Attainment/Unclassifiable Pendleton County 1/16/18 Attainment/Unclassifiable Pleasants County 1/16/18 Attainment/Unclassifiable Pocahontas County 1/16/18 Attainment/Unclassifiable Preston County 1/16/18 Attainment/Unclassifiable Putnam County 1/16/18 Attainment/Unclassifiable Raleigh County 1/16/18 Attainment/Unclassifiable Randolph County 1/16/18 Attainment/Unclassifiable Ritchie County 1/16/18 Attainment/Unclassifiable Roane County 1/16/18 Attainment/Unclassifiable Page 108 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

Summers County 1/16/18 Attainment/Unclassifiable Taylor County 1/16/18 Attainment/Unclassifiable Tucker County 1/16/18 Attainment/Unclassifiable Tyler County 1/16/18 Attainment/Unclassifiable Upshur County 1/16/18 Attainment/Unclassifiable Wayne County 1/16/18 Attainment/Unclassifiable Webster County 1/16/18 Attainment/Unclassifiable Wetzel County 1/16/18 Attainment/Unclassifiable Wirt County 1/16/18 Attainment/Unclassifiable Wood County 1/16/18 Attainment/Unclassifiable Wyoming County 1/16/18 Attainment/Unclassifiable 1Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the boundaries of any area of Indian country in this table, including any area of Indian country located in the larger designation area. The inclusion of any Indian country in the designation area is not a determination that the state has regulatory authority under the Clean Air Act for such Indian country. 2This date is [INSERT DATE 60 DAYS AFTER PUBLICATION IN THE FEDERAL REGISTER], unless otherwise noted.

* * * * *

33. Section 81.350 is amended revising the table titled “Wisconsin—2015 8-Hour Ozone NAAQS

(Primary and Secondary)” to read as follows:

§81.350 Wisconsin.

* * * * *

Wisconsin—2015 8-Hour Ozone NAAQS (Primary and Secondary) Designation Classification Designated area1 Date2 Type Date2 Type Chicago, IL-IN-WI Nonattainment Marginal Kenosha County (part) Inclusive and east of 88th Avenue Nonattainment Marginal (Rural Door County, WI: Transport) Door County (part) Newport State Park Boundary Manitowoc County, WI: Nonattainment Marginal Manitowoc County (part) Inclusive and east of the following roadways going from the northern county boundary to the southern county boundary: Saxonburg Road, Zander Road, Saxonburg Road, Tapawingo Page 109 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

Road, Tannery Road, E County Road V, Tannery Road, E Hillcrest Road, Sunset Drive, County Road VV, Manitou Drive, County Road B, Goodwin Road, N Rapids Road, S Rapids Road, Calumet Avenue, Hecker Road, Silver Creek Road, Gass Lake Road, Clover Road, Center Road, County Road F, Westview Road, County Road X, S Union Road Northern Milwaukee/Ozaukee Nonattainment Marginal Shoreline, WI: Milwaukee County (part) Northeastern corner of Milwaukee County bounded by and inclusive of the following roadways going from the northern county border to Lake Michigan: Highway 57/N. Sherman Blvd/N. 43rd Street to W. Mill Road to Highway 57/N. Green Bay Ave to W. Bender Road/Devon Street to N. Santa Monica Blvd to E. Belle Ave to southern boundary of Klode Park Ozaukee County (part) Inclusive and east of County Road KW, Cedar Beach Road, 6 Mile Road, County Road A, Lovers Land Road, Woodland Road, County Road KK, Willow Road, Highway 57, County Road W, N. Riverside Drive, E. Green Bay Avenue, S. Main Street, N. Green Bay Road, 12th Avenue, Wisconsin Avenue, Green Bay Road, S. Main Street, N. Cedarburg Road/Highway 57 Sheboygan County, WI: Nonattainment Marginal Sheboygan County (part) Inclusive and east of the following roadways going from the northern county boundary to Page 110 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

the southern county boundary: Highway 43, Wilson Lima Road, Minderhaud Road, County Road KK/Town Line Road, N 10th Street, County Road A S/Center Avenue, Gibbons Road, Hoftiezer Road, Highway 32, Palmer Road/Smies Road/Palmer Road, Amsterdam Road/County Road RR, Termaat Road Adams County 1/16/18 Attainment/Unclassifiable Ashland County 1/16/18 Attainment/Unclassifiable Barron County 1/16/18 Attainment/Unclassifiable Bayfield County 1/16/18 Attainment/Unclassifiable Brown County Attainment/Unclassifiable Buffalo County 1/16/18 Attainment/Unclassifiable Burnett County 1/16/18 Attainment/Unclassifiable Calumet County Attainment/Unclassifiable Chippewa County 1/16/18 Attainment/Unclassifiable Clark County 1/16/18 Attainment/Unclassifiable Columbia County 1/16/18 Attainment/Unclassifiable Crawford County 1/16/18 Attainment/Unclassifiable Dane County 1/16/18 Attainment/Unclassifiable Dodge County Attainment/Unclassifiable Door County (part) remainder Attainment/Unclassifiable Douglas County 1/16/18 Attainment/Unclassifiable Dunn County 1/16/18 Attainment/Unclassifiable Eau Claire County 1/16/18 Attainment/Unclassifiable Florence County 1/16/18 Attainment/Unclassifiable Fond du Lac County Attainment/Unclassifiable Forest County 1/16/18 Attainment/Unclassifiable Grant County 1/16/18 Attainment/Unclassifiable Green County 1/16/18 Attainment/Unclassifiable Green Lake County 1/16/18 Attainment/Unclassifiable Iowa County 1/16/18 Attainment/Unclassifiable Iron County 1/16/18 Attainment/Unclassifiable Jackson County 1/16/18 Attainment/Unclassifiable Jefferson County Attainment/Unclassifiable Juneau County 1/16/18 Attainment/Unclassifiable Kenosha County (part) remainder Attainment/Unclassifiable Kewaunee County Attainment/Unclassifiable La Crosse County 1/16/18 Attainment/Unclassifiable Lafayette County 1/16/18 Attainment/Unclassifiable Langlade County 1/16/18 Attainment/Unclassifiable Lincoln County 1/16/18 Attainment/Unclassifiable Manitowoc County (part) remainder Attainment/Unclassifiable Page 111 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

Marathon County 1/16/18 Attainment/Unclassifiable Marinette County 1/16/18 Attainment/Unclassifiable Marquette County 1/16/18 Attainment/Unclassifiable Menominee County 1/16/18 Attainment/Unclassifiable Milwaukee County (part) remainder Attainment/Unclassifiable Monroe County 1/16/18 Attainment/Unclassifiable Oconto County 1/16/18 Attainment/Unclassifiable Oneida County 1/16/18 Attainment/Unclassifiable Outagamie County 1/16/18 Attainment/Unclassifiable Ozaukee County (part) remainder Attainment/Unclassifiable Pepin County 1/16/18 Attainment/Unclassifiable Pierce County 1/16/18 Attainment/Unclassifiable Polk County 1/16/18 Attainment/Unclassifiable Portage County 1/16/18 Attainment/Unclassifiable Price County 1/16/18 Attainment/Unclassifiable Racine County Attainment/Unclassifiable Richland County 1/16/18 Attainment/Unclassifiable Rock County 1/16/18 Attainment/Unclassifiable Rusk County 1/16/18 Attainment/Unclassifiable St. Croix County 1/16/18 Attainment/Unclassifiable Sauk County 1/16/18 Attainment/Unclassifiable Sawyer County 1/16/18 Attainment/Unclassifiable Shawano County 1/16/18 Attainment/Unclassifiable Sheboygan County (part) remainder Attainment/Unclassifiable Taylor County 1/16/18 Attainment/Unclassifiable Trempealeau County 1/16/18 Attainment/Unclassifiable Vernon County 1/16/18 Attainment/Unclassifiable Vilas County 1/16/18 Attainment/Unclassifiable Walworth County Attainment/Unclassifiable Washburn County 1/16/18 Attainment/Unclassifiable Washington County Attainment/Unclassifiable Waukesha County Attainment/Unclassifiable Waupaca County 1/16/18 Attainment/Unclassifiable Waushara County 1/16/18 Attainment/Unclassifiable Winnebago County 1/16/18 Attainment/Unclassifiable Wood County 1/16/18 Attainment/Unclassifiable Forest County Potawatomi Community 1/16/18 Attainment/Unclassifiable Indian Tribe3 1Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the boundaries of any area of Indian country in this table, including any area of Indian country located in the larger designation area. The inclusion of any Indian country in the designation area is not a determination that the state has regulatory authority under the Clean Air Act for such Indian country. 2This date is [INSERT DATE 60 DAYS AFTER PUBLICATION IN THE FEDERAL REGISTER], unless otherwise noted. 3Includes Indian country of the tribe listed in this table located in Forest County, Wisconsin. Information pertaining to areas of Indian country in this table is intended for Clean Air Act planning purposes only and is not an EPA determination of Indian country status or any Indian country boundary. EPA lacks the Page 112 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

authority to establish Indian country land status, and is making no determination of Indian country boundaries, in this table.

* * * * *

34. Section 81.351 is amended by revising the table titled “Wyoming—2015 8-Hour Ozone NAAQS

(Primary and Secondary)” to read as follows:

§81.351 Wyoming.

* * * * *

Wyoming—2015 8-Hour Ozone NAAQS (Primary and Secondary) Designation Classification Designated area1 Date2 Type Date2 Type Albany County Attainment/Unclassifiable Big Horn County 1/16/18 Attainment/Unclassifiable Campbell County 1/16/18 Attainment/Unclassifiable Carbon County 1/16/18 Attainment/Unclassifiable Converse County 1/16/18 Attainment/Unclassifiable Crook County 1/16/18 Attainment/Unclassifiable Fremont County 1/16/18 Attainment/Unclassifiable Goshen County 1/16/18 Attainment/Unclassifiable Hot Springs County 1/16/18 Attainment/Unclassifiable Johnson County 1/16/18 Attainment/Unclassifiable Laramie County Attainment/Unclassifiable Lincoln County 1/16/18 Attainment/Unclassifiable Natrona County 1/16/18 Attainment/Unclassifiable Niobrara County 1/16/18 Attainment/Unclassifiable Park County 1/16/18 Attainment/Unclassifiable Platte County 1/16/18 Attainment/Unclassifiable Sheridan County 1/16/18 Attainment/Unclassifiable Sublette County 1/16/18 Attainment/Unclassifiable Sweetwater County 1/16/18 Attainment/Unclassifiable Teton County 1/16/18 Attainment/Unclassifiable Uinta County 1/16/18 Attainment/Unclassifiable Washakie County 1/16/18 Attainment/Unclassifiable Weston County 1/16/18 Attainment/Unclassifiable 1Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the boundaries of any area of Indian country in this table, including any area of Indian country located in the larger designation area. The inclusion of any Indian country in the designation area is not a determination that the state has regulatory authority under the Clean Air Act for such Indian country. 2This date is [INSERT DATE 60 DAYS AFTER PUBLICATION IN THE FEDERAL REGISTER], unless otherwise noted.

* * * * *

Page 113 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.

Page 114 of 114

This document is a prepublication version, signed by EPA Administrator, E. Scott Pruitt on 4/30/2018. We have taken steps to ensure the accuracy of this version, but it is not the official version.