Incorporation by reference

Air Plan Approval; Missouri; Open Burning; Withdrawal

The Environmental Protection Agency (EPA) is withdrawing its proposed rule to approve Missouri's revisions to the state's open burning rule, as published in the Federal Register on January 13, 2020. By a letter to the EPA dated May 26, 2021, Missouri withdrew its request for approval of revisions to this rule in the state implementation plan (SIP).

Publication Date: 
Monday, July 26, 2021 - 4:00am

Finding of Failure To Submit a State Implementation Plan To Meet the 1987 24-Hour PM10

The Environmental Protection Agency (EPA) is making a finding that Arizona has not submitted a required revision to the Arizona State Implementation Plan (SIP) for the West Pinal County nonattainment area addressing Clean Air Act (CAA) requirements for a Moderate area attainment plan, related rules, and other analyses needed to attain the 1987 24-hour particulate matter (PM<INF>10</INF>) National Ambient Air Quality Standard (NAAQS) by December 31, 2018.

Publication Date: 
Friday, July 23, 2021 - 4:00am

Air Plan Approval; Tennessee; Knoxville Area Limited Maintenance Plan for the 1997 8-Hour Ozone NAAQS

The Environmental Protection Agency (EPA) is taking final action to approve a state implementation plan (SIP) revision submitted by the State of Tennessee, through the Tennessee Department of Environment and Conservation (TDEC), Air Pollution Control Division, via a letter dated January 23, 2020. The SIP revision includes the 1997 8-hour ozone national ambient air quality standards (NAAQS) Limited Maintenance Plan (LMP) for the Knoxville, Tennessee Area (hereinafter referred to as the ``Knoxville Area'' or ``Area'').

Publication Date: 
Friday, July 23, 2021 - 4:00am

Air Plan Approval; Wisconsin; Attainment Plan for the Rhinelander SO2

The Environmental Protection Agency (EPA) is proposing to approve the State Implementation Plan (SIP) revision submitted by Wisconsin on March 29, 2021, which amends a SIP submission previously submitted to EPA on January 22, 2016 and supplemented on July 18, 2016, and November 29, 2016, for attaining the 1-hour sulfur dioxide (SO<INF>2</INF>) primary national ambient air quality standard (NAAQS) for the Rhinelander SO<INF>2</INF> nonattainment area.

Publication Date: 
Thursday, July 22, 2021 - 4:00am

Partial Approval and Partial Disapproval of Air Quality Implementation Plans; California; San Joaquin Valley Serious Area and Section 189(d) Plan for Attainment of the 1997 Annual PM2.5

The Environmental Protection Agency (EPA) is proposing to approve in part and disapprove in part portions of a state implementation plan (SIP) revision submitted by the State of California to meet Clean Air Act (CAA or ``Act'') requirements for the 1997 annual fine particulate matter (PM<INF>2.5</INF>) national ambient air quality standards (NAAQS or ``standards'') in the San Joaquin Valley PM<INF>2.5</INF> nonattainment area. Specifically, the EPA is proposing to approve the 2013 base year emissions inventories in the submitted SIP revisions.

Publication Date: 
Thursday, July 22, 2021 - 4:00am

Air Plan Approval; California; Yolo-Solano Air Quality Management District; Graphic Arts and Printing Operations

The Environmental Protection Agency (EPA) is taking final action to approve a revision to the Yolo-Solano Air Quality Management District (YSAQMD) portion of the California State Implementation Plan (SIP). This revision concerns emissions of volatile organic compounds (VOCs) from graphic arts printing operations. We are approving a local rule that regulates these emission sources under the Clean Air Act (CAA or the Act).

Publication Date: 
Thursday, July 22, 2021 - 4:00am

Air Plan Approval; Oklahoma; Volatile Organic Compound Emissions in Nonattainment Areas and Former Nonattainment Areas

Pursuant to the Federal Clean Air Act (CAA or the Act), the Environmental Protection Agency (EPA) is proposing to approve revisions to the State Implementation Plan (SIP) for Oklahoma submitted by the State of Oklahoma designee with a letter dated May 7, 2020. The submittal covers updates to the Oklahoma SIP, as contained in the state's 2019 annual SIP update. Specifically, this action addresses revisions to Oklahoma Administrative Code (OAC), Emission of Volatile Organic Compounds (VOCs) in Nonattainment Areas and Former Nonattainment Areas.

Publication Date: 
Thursday, July 22, 2021 - 4:00am

Air Plan Approval; Oklahoma; Interstate Visibility Transport

Pursuant to the Federal Clean Air Act (CAA or the Act), the Environmental Protection Agency (EPA) is proposing to approve elements of a State Implementation Plan (SIP) submission from the State of Oklahoma for the 2015 Ozone National Ambient Air Quality Standard (NAAQS), and proposing to disapprove elements of two SIP submissions for the 2010 sulfur dioxide (SO<INF>2</INF>) and the 2012 fine particulate matter (PM<INF>2.5</INF>) NAAQS.

Publication Date: 
Thursday, July 22, 2021 - 4:00am

New Source Review Regulations; Correction

The Environmental Protection Agency (EPA) is amending several New Source Review (NSR) regulations by making the following types of changes: Correcting typographical and grammatical errors, removing court vacated rule language, removing or updating outdated or incorrect cross references, conforming certain provisions to changes contained in the 1990 Clean Air Act (CAA or Act) Amendments, and removing certain outdated grandfathering or transitional exemptions.

Publication Date: 
Monday, July 19, 2021 - 4:00am

Air Plan Approval; Connecticut; Definitions of Emergency and Emergency Engine

The Environmental Protection Agency (EPA) is approving a State Implementation Plan (SIP) revision submitted by the State of Connecticut on December 20, 2019. This revision amends the State's definitions of emergency and emergency engine in its air quality regulations. The intended effect of this action is to approve the December 20, 2019, submittal into the Connecticut SIP. This action is being taken in accordance with the Clean Air Act.

Publication Date: 
Wednesday, July 14, 2021 - 4:00am

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