Air pollution control

Air Plan Approval; Arizona; Maricopa County Air Quality Department

The Environmental Protection Agency (EPA) is proposing to approve revisions to the Maricopa County Air Quality Department (MCAQD) portion of the Arizona State Implementation Plan (SIP). These revisions concern a rule that includes definitions for certain terms that are necessary for the implementation of local rules that regulate sources of air pollution. We are proposing to approve the rule under the Clean Air Act (CAA or the Act). We are taking comments on this proposal and plan to follow with a final action.

Publication Date: 
Wednesday, December 27, 2023 - 4:00am

Air Quality Implementation Plan; California; Great Basin Unified Air Pollution Control District; Stationary Source Permits

The Environmental Protection Agency (EPA) is finalizing a revision to the Great Basin Unified Air Pollution Control District's (GBUAPCD 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: 
Thursday, December 21, 2023 - 4:00am

Air Plan Approval; California; San Diego County Air Pollution Control District; Oxides of Nitrogen

The Environmental Protection Agency (EPA) is taking final action to approve a revision to the San Diego County Air Pollution Control District (SDCAPCD) portion of the California State Implementation Plan (SIP). This revision concerns emissions of oxides of nitrogen (NO<INF>X</INF>) from small boilers, process heaters, steam generators, and large water heaters. We are approving a local rule that regulates these emission sources under the Clean Air Act (CAA or ``the Act'').

Publication Date: 
Thursday, December 21, 2023 - 4:00am

Air Plan Approval; Georgia; Vehicle Inspection and Maintenance Program

The Environmental Protection Agency (EPA) is proposing to approve State Implementation Plan (SIP) revisions submitted by the State of Georgia through the Georgia Department of Natural Resources (GA DNR), Environmental Protection Division (EPD), on June 8, 2022, and on June 6, 2023.

Publication Date: 
Thursday, December 21, 2023 - 4:00am

Air Plan Approval; Wyoming; Interstate Transport of Air Pollution for the 2015 8-Hour Ozone National Ambient Air Quality Standards

The Environmental Protection Agency (EPA) is finalizing approval of the portion of a Wyoming State Implementation Plan (SIP) submission addressing interstate transport for the 2015 8-hour ozone national ambient air quality standards (NAAQS). The ``good neighbor'' or ``interstate transport'' provision requires that each state's SIP contain adequate provisions to prohibit emissions from within the state from significantly contributing to nonattainment or interfering with maintenance of the NAAQS in other states.

Publication Date: 
Tuesday, December 19, 2023 - 4:00am

Air Plan Approval; Indiana; Volatile Organic Compounds; Cold Cleaner Degreasing

The Environmental Protection Agency (EPA) is approving revisions to the volatile organic compound (VOC) rules contained in the Indiana State Implementation Plan (SIP). The Indiana Department of Environmental Management (Indiana) modified its rules to allow the use of a VOC control device for cold cleaning degreasing operations as a compliance option to using low vapor pressure solvent for cleaning or degreasing machine parts. Rule language was also updated for clarity and consistency. EPA proposed to approve this action on August 30, 2023, and received no adverse comments.

Publication Date: 
Monday, December 18, 2023 - 4:00am

Air Plan Revisions; California; Sacramento Metropolitan Air Quality Management District

The Environmental Protection Agency (EPA) is proposing to approve a revision to the Sacramento Metropolitan Air Quality Management District (SMAQMD) portion of the California State Implementation Plan (SIP) concerning a rule submitted to address section 185 of the Clean Air Act (CAA or the Act). We are taking comments on this proposal and plan to follow with a final action.

Publication Date: 
Friday, December 15, 2023 - 4:00am

Air Quality State Implementation Plans; Approvals and Promulgations: California; 1997 Annual Fine Particulate Matter Serious and Clean Air Act Section 189(d) Nonattainment Area Requirements; San Joaquin Valley, CA

The Environmental Protection Agency (EPA or ``Agency'') is taking final action to approve portions of state implementation plan (SIP) revisions 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.

Publication Date: 
Thursday, December 14, 2023 - 4:00am

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

The Environmental Protection Agency (EPA) is proposing to approve revisions to the Ventura County Air Pollution Control District (VCAPCD) portion of the California State Implementation Plan (SIP). These revisions concern definitions applicable to local rules that control emissions of volatile organic compounds (VOCs) from processing, production, gathering, and separation of crude oil and natural gas, and the transfer and storage of reactive organic compound liquids and petroleum material.

Publication Date: 
Tuesday, December 12, 2023 - 4:00am

Air Plan Disapproval; Louisiana; Excess Emissions

Pursuant to the Federal Clean Air Act (CAA or the Act), the Environmental Protection Agency (EPA) is disapproving a State Implementation Plan (SIP) revision submitted by the State of Louisiana, through the Louisiana Department of Environmental Quality (LDEQ), on November 20, 2016, and supplemented on June 9, 2017. The submittals were in response to the EPA's national SIP call on June 12, 2015, concerning excess emissions during periods of Startup, Shutdown, and Malfunction (SSM).

Publication Date: 
Thursday, December 7, 2023 - 4:00am

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