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Federal Register / Vol. 86, No. 112 / Monday, June 14, 2021 / Rules and Regulations U.S. Environmental Protection Agency, Mail Code C53901, Research Triangle Park, N.C. 27711, phone number 919
5413347 or by email at: oldham.carla@
epa.gov. The following EPA contacts can answer questions regarding areas
affiliated with a particular EPA Regional office:
Region 5Eric Svingen, telephone 312 3534489, email at svingen.eric@
epa.gov.
Region 6Carrie Paige, telephone 214 6656521, email at paige.carrie@
epa.gov.

Region 7Ashley Keas, telephone 913 5517629, email at keas.ashley@
epa.gov.
Region 8Abby Fulton, telephone 303 3126563, email at fulton.abby@
epa.gov.

Regional offices
Affected states
EPA Region 5Air Programs Branch, Air & Radiation Division AR18J, 77
West Jackson Boulevard, Chicago, Illinois 60604.
EPA Region 6State Planning & Implementation Branch, 1201 Elm Street, Dallas, Texas 75270.
EPA Region 7Air Quality Planning Branch, 11201 Renner Boulevard, Lenexa, Kansas 66219.
EPA Region 8Air Quality Planning Branch, 1595 Wynkoop Street, Denver, Colorado 80202.

Most of the EPAs offices are closed to reduce the risk of transmitting COVID
19, but staff remain available via telephone and email. The EPA
encourages the public to review information related to the EPAs final action responding to the July 10, 2020, Court Decision online at https
www.epa.gov/ozone-designations and also in the public docket at https
www.regulations.gov under Docket ID
No. EPAHQOAR20170548.
SUPPLEMENTARY INFORMATION:
Table of Contents
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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 action and what guidance did the EPA provide?
VII. What air quality data have the EPA used to designate the remanded areas for the 2015 ozone NAAQS?
VIII. What are the ozone air quality classifications and implementation dates?
IX. Rural Transport Area Determination for the Revised Door County, Wisconsin Designation X. Environmental Justice Concerns XI. Statutory and Executive Order Reviews A. Executive Order 12866: Regulatory Planning and Review and Executive Order 13563: Improving Regulation and Regulatory Review B. Paperwork Reduction Act PRA
C. Regulatory Flexibility Act RFA
D. Unfunded Mandates Reform Act UMRA
E. Executive Order 13132: Federalism F. Executive Order 13175: Consultation and Coordination With Indian Tribal Governments
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Illinois, Indiana, Michigan, and Wisconsin.
Texas.
Missouri.
Colorado.

G. Executive Order 13045: Protection of Children From Environmental Health and Safety Risks H. Executive Order 13211: Actions That Significantly Affect Energy Supply, Distribution, or Use I. National Technology Transfer and Advancement Act NTTAA
J. Executive Order 12898: Federal Actions To Address Environmental Justice in Minority Populations and Low-Income Populations K. Congressional Review Act CRA
L. 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 CRA Congressional Review Act D.C. District of Columbia EPA Environmental Protection Agency FR Federal Register NAAQS National Ambient Air Quality Standards NTTAA National Technology Transfer and Advancement Act ppm Parts per million PRA Paperwork Reduction Act RFA Regulatory Flexibility Act RTA Rural Transport Area SIP State Implementation Plan TAR Tribal Authority Rule TSD Technical Support Document UMRA Unfunded Mandate Reform Act U.S. United States VOC Volatile Organic Compound
II. What is the purpose of this action?
The purpose of this final action is to announce and promulgate revised 2015
ozone NAAQS designations for 13
counties in response to the July 10, 2020, decision by the District of Columbia Circuit Court that remanded the counties to the EPA for further consideration. The affected counties were initially designated on April 30, 2018. This action also modifies and
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expands the rationale supporting the designation for one county that was remanded to the EPA by the court but remains identical to the initial April 30, 2018, designation. The EPA is addressing the two additional remanded counties that require a different process in a document published elsewhere in this issue of the Federal Register.
On October 1, 2015, the EPA
promulgated revised primary and secondary NAAQS for ozone 80 FR
6592; October 26, 2015. In that action, the EPA strengthened both standards to a level of 0.070 parts per million ppm, while retaining their indicators, averaging times, and forms. The EPA
revised the ozone standards based on an integrated assessment of an extensive body of new scientific evidence, which substantially strengthens our knowledge regarding ozone-related health and welfare effects, the results of exposure and risk analyses, the advice of the Clean Air Scientific Advisory Committee and consideration of public comments.
The process for designating areas following promulgation of a new or revised NAAQS is contained in the CAA
section 107d 42 U.S.C. 7407d. After promulgation of a new or revised NAAQS, the CAA requires the EPA to determine if areas in the country meet the new standards. Accordingly, the EPA designated all areas of the country as to whether they met, or did not meet, the NAAQS in three rounds.2
2 The EPA designated areas for the 2015 Ozone NAAQS in three rounds, resulting in 52
nonattainment areas. In Round 1 82 FR 54232;
November 6, 2017, the EPA designated 2,646
counties, two separate tribal areas and five territories as attainment/unclassifiable, and one area as unclassifiable. In Round 2 83 FR 25776;
April 30, 2018, the EPA designated 51
nonattainment areas, one unclassifiable area, and all remaining areas as attainment/unclassifiable, except for the eight counties in the San Antonio,
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