Ozone

Air Plan Approval; AK; Adoption and Permitting Rule Updates

The Environmental Protection Agency (EPA) is approving revisions to the Alaska State Implementation Plan submitted on May 16, 2022, and August 11, 2022. The revisions update Alaska's adoption by reference date for Federal regulations relied upon for implementation of the air program, including permitting requirements and air pollution test methods.

Publication Date: 
Wednesday, March 22, 2023 - 4:00am

Air Plan Approval; Georgia; Macon Area Limited Maintenance Plan for the 1997 8-Hour Ozone NAAQS

The Environmental Protection Agency (EPA) is finalizing approval of a state implementation plan (SIP) revision submitted by the State of Georgia, through the Georgia Environmental Protection Division (EPD), on October 20, 2021. The SIP revision includes the Limited Maintenance Plan (LMP) for the Macon 1997 8-hour ozone national ambient air quality standards (NAAQS) maintenance area (hereinafter referred to as the Macon 1997 8-hour Ozone NAAQS Area or Macon Area or Area).

Publication Date: 
Wednesday, March 8, 2023 - 4:00am

Designation of Areas for Air Quality Planning Purposes; California; Coachella Valley Ozone Nonattainment Area; Reclassification to Extreme

Under the Clean Air Act (CAA), the Environmental Protection Agency (EPA) is granting requests by the California Air Resources Board (CARB) to reclassify the Coachella Valley ozone nonattainment area in California from ``Severe-15'' to ``Extreme'' for the 2008 ozone national ambient air quality standards (NAAQS). This action does not reclassify any areas of Indian country within the boundaries of the Coachella Valley 2008 ozone nonattainment area.

Publication Date: 
Wednesday, March 8, 2023 - 4:00am

Air Plan Approval; MO; Restriction of Visible Air Contaminant Emissions

The Environmental Protection Agency (EPA) is taking final action to approve revisions to the Missouri State Implementation Plan (SIP) received on November 29, 2016, and March 7, 2019. The revisions were submitted by Missouri in response to a finding of substantial inadequacy and SIP call published on June 12, 2015, for a provision in the Missouri SIP related to excess emissions during startup, shutdown, and malfunction (SSM) events. In the submissions, Missouri requests to revise a regulation related to restriction of emissions of visible air contaminants.

Publication Date: 
Wednesday, March 8, 2023 - 4:00am

Air Plan Approval; California; Ventura County Air Pollution Control District

The Environmental Protection Agency (EPA) is taking final action to approve a revision to the Ventura County Air Pollution Control District (VCAPCD) portion of the California State Implementation Plan (SIP). This revision concerns emissions of volatile organic compounds (VOCs) from architectural coating operations. We are approving a local rule to regulate these emission sources under the Clean Air Act (CAA or the Act). Approval of the local rule as part of the California SIP makes it federally enforceable.

Publication Date: 
Monday, March 6, 2023 - 4:00am

Air Plan Approval; New Mexico; Excess Emissions

Pursuant to the Federal Clean Air Act (CAA, the Act), the Environmental Protection Agency (EPA) is approving a State Implementation Plan (SIP) revision submitted by the New Mexico Environment Department (NMED) on October 13, 2016. The revision was submitted in response to a finding of substantial inadequacy and SIP call as published by EPA on June 12, 2015, concerning excess emissions during periods of startup, shutdown, and malfunction (SSM) events.

Publication Date: 
Friday, March 3, 2023 - 4:00am

Air Plan Approval; Kentucky; Revision to Federally Enforceable District Origin Operating Permits

The Environmental Protection Agency (EPA) is approving a revision to the Jefferson County portion of the Kentucky State Implementation Plan (SIP) submitted by the Commonwealth of Kentucky through the Kentucky Energy and Environment Cabinet (Cabinet) on June 15, 2022. The changes were submitted by the Cabinet on behalf of the Louisville Metro Air Pollution Control District (District, also referred to herein as Jefferson County).

Publication Date: 
Wednesday, March 1, 2023 - 4:00am

National Emission Standards for Hazardous Air Pollutants: Miscellaneous Coating Manufacturing Technology Review

The U.S. Environmental Protection Agency (EPA) is taking final action on the technology review conducted on the Miscellaneous Coating Manufacturing (MCM) source category regulated under the National Emission Standards for Hazardous Air Pollutants (NESHAP). These final amendments include provisions for inorganic hazardous air pollutant (HAP) standards for process vessels.

Publication Date: 
Wednesday, February 22, 2023 - 4:00am

Air Quality: Revision to the Regulatory Definition of Volatile Organic Compounds-Exclusion of (2E)-1,1,1,4,4,4-hexafluorobut-2-ene (HFO-1336mzz(E))

On April 28, 2022, the U.S. Environmental Protection Agency (EPA) published a proposed rule seeking comments in response to a petition requesting the revision of the EPA's regulatory definition of volatile organic compounds (VOC) to exempt trans-1,1,1,4,4,4- hexafluorobut-2-ene (also known as HFO-1336mzz(E); CAS number 66711-86- 2). The EPA is now taking final action to revise the regulatory definition of VOC under the Clean Air Act (CAA).

Publication Date: 
Wednesday, February 8, 2023 - 4:00am

Air Quality Implementation Plan; California; Tuolumne County Air Pollution Control District; Stationary Source Permits

The Environmental Protection Agency (EPA) is finalizing a revision to the Tuolumne County Air Pollution Control District's (TCAPCD or ``District'') portion of the California State Implementation Plan (SIP). This revision governs the District's issuance of permits for stationary sources, and focuses on the preconstruction review and permitting of major sources and major modifications under part D of title I of the Clean Air Act (CAA or ``the Act'').

Publication Date: 
Tuesday, February 7, 2023 - 4:00am

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