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

Federal RegisterJun 4, 2018

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ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 81

[EPA-HQ-OAR-2017-0548; FRL-9977-72-OAR]

RIN 2060-AT94

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

AGENCY:

Environmental Protection 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 August 3, 2018.

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 website for this rulemaking at

https://www.epa.gov/ozone-designations.

The website 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:

Denise Scott, Office of Air Quality Planning and Standards, U.S. Environmental Protection Agency, Mail Code C539-01, Research Triangle Park, NC 27711, phone number (919) 541-4280 or by email at:

scott.denise@epa.gov.

Regional Office Contacts

Region I—Richard Burkhart, telephone (617) 918-1664, email at

burkhart.richard@epa.gov.

Region II—Omar Hammad, telephone (212) 637-3347, email at

hammad.omar@epa.gov.

Region III—Maria Pino, telephone (215) 814-2181, email at

pino.maria@epa.gov.

Region IV—Jane Spann, telephone (404) 562-9029, email at

spann.jane@epa.gov.

Region V—Kathleen D'Agostino, telephone (312) 886-1767, email at

dagostino.kathleen@epa.gov.

Region VI—Carrie Paige, telephone (214) 665-6521, email at

paige.carrie@epa.gov.

Region VII—Lachala Kemp. telephone (913) 551-7214, email at

kemp.lachala@epa.gov.

Region VIII—Chris Dresser, telephone (303) 312-6385, email at

dresser.chris@epa.gov.

Region IX—Ashley Graham, telephone (415) 972-3877, email at

graham.ashleyr@epa.gov.

Region X—Karl Pepple, telephone (206) 553-1778, email at

pepple.karl@epa.gov.

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, EPA New England, 5 Post Office Square, Suite 100, Boston, MA 02109-3912, (617) 918-1661

Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, and Vermont.

Richard Ruvo, Chief, Air Programs Branch, EPA Region II, 290 Broadway, 25th Floor, New York, NY 10007-1866, (212) 637-4014

New Jersey, New York, Puerto Rico, and Virgin Islands.

Maria A. Pino, Acting Associate Director, Office of Air Program Planning, EPA Region III, 1650 Arch Street, Philadelphia, PA 19103- 2187, (215) 814-2181

Delaware, District of Columbia, Maryland, Pennsylvania, Virginia, and West Virginia.

R. Scott Davis, Chief, Air Planning and Implementation Branch, EPA Region IV, Sam Nunn Atlanta Federal Center, 61 Forsyth, Street, SW, 12th Floor, Atlanta, GA 30303, (404) 562-9127

Alabama, Florida, Georgia, Kentucky, Mississippi, North Carolina, South Carolina, and Tennessee.

John Mooney, Chief, Air Programs Branch, EPA Region V, 77 West Jackson Street, Chicago, IL 60604, (312) 886-6043

Illinois, Indiana, Michigan, Minnesota, Ohio, and Wisconsin.

Mary Stanton, Chief, State Implementation Section B, EPA Region VI, 1445 Ross Avenue, Dallas, TX 75202, (214) 665-8377

Arkansas, Louisiana, New Mexico, Oklahoma, and Texas.

Mike Jay, Chief, Air Programs Branch, EPA Region VII, 11201 Renner Blvd., Lenexa, KS 66129, (913) 551-7460

Iowa, Kansas, Missouri, and Nebraska.

Monica Morales, Air Program Director, EPA Region VIII, 1595 Wynkoop Street, Denver, CO 80202-1129, (303) 312-6936

Colorado, Montana, North Dakota, South Dakota, Utah, and Wyoming.

Laura Lawrence, Acting Chief, Air Planning Office, EPA Region IX, 75 Hawthorne Street, San Francisco, CA 94105, (415) 972-3407

American Samoa, Arizona, California, Guam, Hawaii, Nevada, and Northern Mariana Islands.

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

Alaska, Idaho, Oregon, and Washington.

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?

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. Determining Rural Transport Areas

XII. How do designations affect Indian country?

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

XIV. Environmental Justice Concerns

XV. 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

DC District of Columbia

EPA Environmental Protection Agency

FR Federal Register

NAAQS National Ambient Air Quality Standards

Nitrogen Oxides

NTTAA National Technology Transfer and Advancement Act

PPM Parts per million

RFA Regulatory Flexibility Act

RTA Rural Transport Area

UMRA Unfunded Mandate Reform Act of 1995

TAR Tribal Authority Rule

U.S. United States

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 certain lands of the Pechanga Tribe and the Morongo Tribe in Southern California as separate nonattainment areas.

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.

Designation guidance for the 2015 ozone NAAQS is available at

https://www.epa.gov/ozone-designations/epa-guidance-area-designations-2015-ozone-naaqs.

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 (NO

) 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 few areas in the Western United States (U.S.) have experienced high levels of local VOC and NO

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 concentration, averaged over 3 years).

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.

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.

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 ecosystems.

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 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.

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

This view was confirmed in

Catawba County

EPA,

571 F.3d 20 (D.C. Cir. 2009).

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 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).

On November 6, 2017, the EPA designated as attainment/unclassifiable 2,646 counties,

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.

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.

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

American Lung Association, et al.

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

Pruitt

(N.D. Cal. No. 4:17-cv-06936). The United States District Court for the Northern District of California 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.

State and tribal recommendations and the EPA's preliminary responses are posted on EPA's website 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?

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 most recent 3 years).

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.

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.

Table 1—Classification Thresholds for the 2015 Ozone NAAQS

[0.070 ppm]

Nonattainment area classification

8-hour ozone

design value

(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 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 comments on that proposal (November 17, 2016; 81 FR 81285).

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.

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

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 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 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.

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 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 who wishes to pursue a reclassification should submit all requests and supporting documentation to the EPA Regional Office by July 5, 2018. 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 September 4, 2018.

XI. Determining Rural Transport Areas

CAA section 182(h) sets out general criteria for determining whether an area qualifies as a Rural Transport Area (RTA). The statute defines a RTA as an area which is designated nonattainment and neither includes nor is adjacent to any part of a metropolitan statistical area or consolidated metropolitan statistical area as defined at the time of the 1990 CAA amendments. In such cases, the Administrator has discretion to treat the area as a RTA based on a finding that the emissions within the area do not make a significant contribution to the ozone concentrations measured in the area or in other areas. The EPA provided guidance on requesting RTA treatment in the February 25, 2016, memorandum “Area Designations for the 2015 Ozone National Ambient Air Quality Standards.” A RTA, regardless of its nonattainment classification, is treated as meeting the applicable requirements of CAA section 182 (generally relating to submissions required for ozone nonattainment areas) if the area meets the submission requirements of a Marginal area.

Two states requested that the EPA find a nonattainment area in their state to meet the criteria for treatment as a RTA. In a letter dated October 3, 2016, California requested that the EPA make a RTA determination for the Tuscan Buttes nonattainment area. In a letter dated April 20, 2017, Wisconsin requested that the EPA make a RTA determination for the Door County nonattainment area. The EPA has determined that the final nonattainment areas for Tuscan Buttes, California and Door County, Wisconsin, meet the criteria for treatment as RTAs under CAA section 182(h). Documentation supporting these determinations are contained in the final TSDs for California (section 20.0) and Wisconsin (section 3.4), which are available in the public docket for this final action. This determination is reflected in the

regulatory tables in 40 CFR part 81 for each state.

XII. 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 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 certain lands of the Pechanga Tribe and the Morongo Tribe in Southern California as separate nonattainment areas.

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.

Designation guidance for the 2015 ozone NAAQS is available at

https://www.epa.gov/ozone-designations/epa-guidance-area-designations-2015-ozone-naaqs.

XIII. 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 is 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 website 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.

XIV. 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 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.

XV. 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).

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 has tribal implications. However, it will neither impose substantial direct compliance costs on federally recognized tribal governments, nor preempt tribal law.

The EPA consulted with tribal officials early in the process of developing this regulation to permit them to have meaningful and timely input into its development. At the beginning of the designations process, letters were sent to all tribes who were expected to be impacted by designations for the 2015 ozone NAAQS. These letters not only informed the tribes of the overall designations process, but also offered the tribes consultation to ensure early communication and coordination. Additionally, letters were sent to potentially affected tribes indicating the EPA's intended designations for their areas of Indian country. To the extent possible, the EPA included the tribes' input into the final decision-making process for designations of their areas of Indian country for the 2015 ozone NAAQS.

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.”

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 these 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. 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 these final designations must be filed in the Court of Appeals for the District of Columbia Circuit within 60 days from the date of this 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: April 30, 2018

E. Scott Pruitt,

Administrator.

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]

Designated area

Designation

Date

Type

Classification

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

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

Includes 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.

This date is August 3, 2018, 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]

Designated area

Designation

Date

Type

Classification

Date

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); 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; 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; 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”.

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.

Gila River Indian Community of the Gila River Indian Reservation, Arizona

Attainment/Unclassifiable

Includes the contiguous main body of the reservation, excluding non-contiguous areas of Indian country known as “parcels M & N”.

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

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.

This date is August 3, 2018, unless otherwise noted.

See 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]

Designated area

Designation

Date

Type

Classification

Date

Type

Amador County, CA

Nonattainment

Marginal.

Amador County:

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 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 (West Mojave Desert), CA

Nonattainment

Severe-15.

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 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 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, CA

Nonattainment

Extreme.

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; 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 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 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 Luiseño Mission Indians of the Pechanga Reservation:

Includes only non-contiguous tribal lands known as the Meadowbrook parcel.

Ramona Band of Cahuilla.

San Manuel Band of Mission Indians.

Soboba Band of Luiseño 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, Range 14 East to the Nevada-Sierra County boundary.

Riverside County (Coachella Valley), CA

Nonattainment

Severe-15.

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 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 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 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 Diegueño Mission Indians of the Campo Indian Reservation.

Capitan Grande Band of Diegueño Mission Indians of California.

Ewiiaapaayp Band of Kumeyaay Indians.

Iipay Nation of Santa Ysabel.

Inaja Band of Diegueño Mission Indians of the Inaja and Cosmit Reservation.

Jamul Indian Village of California.

La Jolla Band of Luiseño Indians.

La Posta Band of Diegueño Mission Indians of the La Posta Indian Reservation.

Los Coyotes Band of Cahuilla and Cupeño Indians.

Manzanita Band of Diegueño Mission Indians of the Manzanita Reservation.

Mesa Grande Band of Diegueño Mission Indians of the Mesa Grande Reservation.

Pala Band of Mission Indians.

Pauma Band of Luiseño Mission Indians of the Pauma and Yuima Reservation.

Rincon Band of Luiseño Mission Indians of the Rincon Reservation.

San Pasqual Band of Diegueño 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: 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 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 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):

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 (Rural Transport).

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 Indians

Nonattainment

Serious.

Pechanga Band of Luiseño Mission Indians of the Pechanga Reservation

Nonattainment

Marginal.

Includes the main body of the contiguous Pechanga Band Reservation and the noncontiguous area known as Pu'eskaMountain, excluding non-contiguous tribal lands in the Los Angeles-South Coast Air Basin, CA (Meadowbrook parcel).

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

Attainment/Unclassifiable

Del Norte County

1/16/18

Humboldt County

1/16/18

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.

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.

This date is August 3, 2018, unless otherwise noted.

See 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 Pu'eska Mountain and Meadowbrook lands (available in Docket ID: EPA-HQ-OAR-2017-0548).

See 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]

Designated area

Designation

Date

Type

Classification

Date

Type

Denver Metro/North Front Range, CO

Nonattainment

Marginal.

Adams County.

Arapahoe County.

Boulder County.

Broomfield County.

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

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

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

This date is August 3, 2018, 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]

Designated area

Designation

Date

Type

Classification

Date

Type

Greater Connecticut, CT

Nonattainment

Marginal.

Hartford County.

Litchfield County.

New London County.

Tolland County.

Windham County.

New York-Northern New Jersey-Long Island, NY-NJ-CT

Nonattainment

Moderate.

Fairfield County.

Middlesex County.

New Haven County.

This date is August 3, 2018, unless otherwise noted.

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]

Designated area

Designation

Date

Type

Classification

Date

Type

Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE

Nonattainment

Marginal.

New Castle County.

Kent County

Attainment/Unclassifiable

Sussex County

Attainment/Unclassifiable

This date is August 3, 2018, 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]

Designated area

Designation

Date

Type

Classification

Date

Type

Washington, DC-MD-VA

Nonattainment

Marginal.

District of Columbia.

This date is August 3, 2018, 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]

Designated area

Designation

Date

Type

Classification

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

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

This date is August 3, 2018, unless otherwise noted.

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]

Designated area

Designation

Date

Type

Classification

Date

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

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

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

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

This date is August 3, 2018, 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.

Illinois—2015 8-Hour Ozone NAAQS

[Primary and Secondary]

Designated area

Designation

Date

Type

Classification

Date

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

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

McLean County

1/16/18

Attainment/Unclassifiable

Menard County

1/16/18

Attainment/Unclassifiable

Mercer County

1/16/18

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

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

This date is August 3, 2018, 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]

Designated area

Designation

Date

Type

Classification

Date

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.

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

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

This date is August 3, 2018, unless otherwise noted.

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]

Designated area

Designation

Date

Type

Classification

Date

Type

Cincinnati, OH-KY

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

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

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

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

This date is August 3, 2018, 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]

Designated area

Designation

Date

Type

Classification

Date

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

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

This date is August 3, 2018, 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]

Designated area

Designation

Date

Type

Classification

Date

Type

Baltimore, MD

Nonattainment

Marginal.

Anne Arundel County.

Baltimore County.

Carroll County.

Harford County.

Howard County.

City of Baltimore.

Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE

Nonattainment

Marginal.

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

This date is August 3, 2018, 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]

Designated area

Designation

Date

Type

Classification

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

This date is August 3, 2018, 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.

Michigan—2015 8-Hour Ozone NAAQS

[Primary and Secondary]

Designated area

Designation

Date

Type

Classification

Date

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, Manlus 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, (incl. Village of Lakewood Club), Fruitland Township, Fruitport Township, (incl. Village of Fruitport) 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

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

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

This date is August 3, 2018, 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]

Designated area

Designation

Date

Type

Classification

Date

Type

St. Louis, MO-IL

Nonattainment

Marginal.

Franklin County (part):

Boles Township.

St. Charles County.

St. Louis County.

City of St. Louis.

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

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

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

This date is August 3, 2018, 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]

Designated area

Designation

Date

Type

Classification

Date

Type

Las Vegas, NV

Nonattainment

Marginal.

Clark County (part):

That portion of Clark County that lies in hydrographic area 212.

Las Vegas Tribe of Paiute Indians of the Las Vegas Indian Colony.

Rest of State

Attainment/Unclassifiable

Carson City.

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

This date is August 3, 2018, unless otherwise noted.

Hydrographic 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]

Designated area

Designation

Date

Type

Classification

Date

Type

New York-Northern New Jersey-Long Island, NY-NJ-CT

Nonattainment

Moderate.

Bergen County.

Essex County.

Hudson County.

Hunterdon County.

Middlesex County.

Monmouth County.

Morris County.

Passaic County.

Somerset County.

Sussex County.

Union County.

Warren County.

Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE

Nonattainment

Marginal.

Atlantic County.

Burlington County.

Camden County.

Cape May County.

Cumberland County.

Gloucester County.

Mercer County.

Ocean County.

Salem County.

This date is August 3, 2018, 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]

Designated area

Designation

Date

Type

Classification

Date

Type

Doña Ana County (Sunland Park Area), NM

Nonattainment

Marginal.

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.

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

This text is long and has been trimmed here. Open the source document for the complete record.

This is a copy of a public record, reproduced as it was published. It is not legal advice, and it may not be the version a court would rely on. Check the official source before you cite it.