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Federal Register / Vol. 86, No. 31 / Thursday, February 18, 2021 / Rules and Regulations Authority: 42 U.S.C. 7401 et seq.

PART 52APPROVAL AND
PROMULGATION OF
IMPLEMENTATION PLANS

52.220a

Subpart FCalifornia
Identification of planin part.

c

2. In 52.220a, amend Table 1 to paragraph c by revising the entries for 94700 and 94701 to read as follows:

1. The authority citation for part 52
continues to read as follows:

TABLE 1EPA-APPROVED STATUTES AND STATE REGULATIONS 1
State citation
State effective date
Title/subject

EPA approval date

Additional explanation

Title 17 Public Health, Division 3 Air Resources, Chapter 1 Air Resources Board; Subchapter 8.6 Maximum Incremental Reactivity; Article 1 Tables of Maximum Incremental Reactivity MIR Values 94700

MIR Values for Compounds

1/1/2015

94701

MIR Values for Hydrocarbon Solvents.

10/2/2010

2/18/2021, Insert citation of publication.
2/18/2021, Insert citation of publication.

Submitted by CARB on December 1, 2016.
Submitted by CARB on December 1, 2016.

1 Table 1 lists EPA-approved California statutes and regulations incorporated by reference in the applicable SIP. Table 2 of paragraph c lists approved California test procedures, test methods and specifications that are cited in certain regulations listed in table 1. Approved California statutes that are nonregulatory or quasi-regulatory are listed in paragraph e.

BILLING CODE 656050P

ENVIRONMENTAL PROTECTION
AGENCY
40 CFR Part 52
EPAR03OAR20200195; FRL10020
08-Region 3

Air Plan Approval; West Virginia; 1997
8-Hour Ozone National Ambient Air Quality Standard Second Maintenance Plan for the West Virginia Portion of the Steubenville-Weirton, OH-WV Area Comprising Brooke and Hancock Counties Environmental Protection Agency EPA.
ACTION: Final rule.
AGENCY:

The Environmental Protection Agency EPA is approving a state implementation plan SIP revision submitted by the West Virginia Department of Environmental Protection WVDEP on behalf of the State of West Virginia. This revision pertains to the West Virginias plan for maintaining the 1997 8-hour ozone national ambient air quality standard NAAQS for the West Virginia portion of the SteubenvilleWeirton, OH-WV area Weirton Area, comprising Brooke and Hancock Counties. EPA is approving these revisions to the West Virginia SIP in accordance with the requirements of the Clean Air Act CAA.
DATES: This final rule is effective on March 22, 2021.

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SUMMARY:

VerDate Sep<11>2014

16:43 Feb 17, 2021

EPA has established a docket for this action under Docket ID
Number EPAR03OAR20200195. All documents in the docket are listed on the https www.regulations.gov website. Although listed in the index, some information is not publicly available, e.g., confidential business information CBI 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 through https
www.regulations.gov, or please contact the person identified in the FOR FURTHER
INFORMATION CONTACT section for additional availability information.
FOR FURTHER INFORMATION CONTACT:
Keila M. Pagan-Incle, Planning &
Implementation Branch 3AD30, Air &
Radiation Division, U.S. Environmental Protection Agency, Region III, 1650
Arch Street, Philadelphia, Pennsylvania 19103. The telephone number is 215
8142926. Ms. Pagan-Incle can also be reached via electronic mail at paganincle.keila@epa.gov.
SUPPLEMENTARY INFORMATION:
ADDRESSES:

FR Doc. 202102900 Filed 21721; 8:45 am
Jkt 253001

I. Background On June 29, 2020 85 FR 38820, EPA
published a notice of proposed rulemaking NPRM for the State of West Virginia. In the NPRM, EPA
proposed approval of West Virginias plan for maintaining the 1997 8-hour ozone NAAQS through June 13, 2027, in accordance with CAA section 175A. The formal SIP revision was submitted by WVDEP on December 10, 2019.

PO 00000

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Fmt 4700

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II. Summary of SIP Revision and EPA
Analysis On May 14, 2007 72 FR 27060, effective June 13, 2007, EPA approved a redesignation request and maintenance plan from WVDEP for the Weirton Area. Per CAA section 175Ab, at the end of the eighth year after the effective date of the redesignation, the state must also submit a second maintenance plan to ensure ongoing maintenance of the standard for an additional 10 years, and in South Coast Air Quality Management District v.
EPA,1 the D.C. Circuit held that this requirement cannot be waived for areas, like the Weirton Area, that had been redesignated to attainment for the 1997
8-hour ozone NAAQS prior to revocation and that were designated attainment for the 2008 ozone NAAQS.
CAA section 175A sets forth the criteria for adequate maintenance plans. In addition, EPA has published longstanding guidance that provides further insight on the content of an approvable maintenance plan, explaining that a maintenance plan should address five elements: 1 An attainment emissions inventory; 2 a maintenance demonstration; 3 a commitment for continued air quality monitoring; 4 a process for verification of continued attainment; and 5 a contingency plan.2 WVDEPs December 10, 2019 SIP submittal fulfills West 1 882

F.3d 1138 D.C. Cir. 2018.
for Processing Requests to Redesignate Areas to Attainment, Memorandum from John Calcagni, Director, Air Quality Management Division, September 4, 1992 Calcagni Memo.
2 Procedures
E:FRFM18FER1.SGM

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