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Air Plan Approval; South Carolina: New Source Review Updates

The Environmental Protection Agency (EPA or the Agency) is proposing to approve State Implementation Plan (SIP) revisions submitted by the State of South Carolina, through the South Carolina Department of Health and Environmental Control (hereinafter referred to as SC DHEC or South Carolina) via a letter dated February 3, 2022. The SIP revisions include updates to South Carolina's Prevention of Significant Deterioration (PSD) and Nonattainment New Source Review (NNSR) regulations.

Publication Date: 
Tuesday, July 26, 2022 - 4:00am

Air Approval Plans; Louisiana; Repeal of Excess Emissions Related Provisions

Pursuant to the Federal Clean Air Act (CAA, the Act), the Environmental Protection Agency (EPA) is proposing to approve a State Implementation Plan (SIP) revision submitted by the State of Louisiana, through the Louisiana Department of Environmental Quality (LDEQ), on November 20, 2016. The submittal is in response to the EPA's national SIP call of June 12, 2015, concerning excess emissions during periods of Startup, Shutdown, and Malfunction (SSM). The submittal requests the removal of certain provisions identified in the 2015 SIP call from the Louisiana SIP.

Publication Date: 
Friday, July 22, 2022 - 4:00am

Air Plan Approval; OR; Vehicle Inspection Program and Medford-Ashland PM10

The Environmental Protection Agency (EPA) is approving revisions to the Oregon state implementation plan (SIP) submitted by the State of Oregon (Oregon) on December 9, 2020 and December 22, 2021. The revisions update the SIP-approved vehicle inspection program for the Portland and Medford areas. The EPA is approving the SIP submittal as consistent with Clean Air Act (Act or CAA) requirements.

Publication Date: 
Tuesday, July 12, 2022 - 4:00am

Air Plan Approval; Washington; Yakima Regional Clean Air Agency, General Air Quality Regulations

The Environmental Protection Agency (EPA) is approving revisions to the Washington State Implementation Plan (SIP) that were submitted by the Department of Ecology (Ecology) in coordination with the Yakima Regional Clean Air Agency (YRCAA). In 2014, 2015, 2016, and 2020, the EPA approved revisions to the General Regulations for Air Pollution Sources promulgated by Ecology in the Washington Administrative Code (WAC). In this action, the EPA is approving an update to the SIP for YRCAA's jurisdiction to reflect these changes to the WAC.

Publication Date: 
Monday, July 11, 2022 - 4:00am

Air Plan Approval; Missouri; Start-Up, Shutdown and Malfunction Conditions

The Environmental Protection Agency (EPA) is taking final action to approve revisions to the State Implementation Plan (SIP) for the State of Missouri. This final action will amend the SIP to incorporate revisions to a state regulation related to the reporting of start-up, shutdown, and malfunction (SSM) events in Missouri. The revisions to this rule include adding incorporations by reference to other state rules, including definitions specific to the rule and making administrative wording changes.

Publication Date: 
Friday, June 24, 2022 - 4:00am

Air Plan Approval; Ohio; Redesignation of the Ohio Portion of the Cincinnati, Ohio-Kentucky Area to Attainment of the 2015 Ozone Standard

The Environmental Protection Agency (EPA) finds that the Cincinnati, Ohio-Kentucky area (Area) is attaining the 2015 ozone National Ambient Air Quality Standard (NAAQS or standard) and is acting in accordance with a request from the Ohio Environmental Protection Agency (OEPA) to redesignate the Ohio portion of the Area to attainment for the 2015 ozone NAAQS because the request meets the statutory requirements for redesignation under the Clean Air Act (CAA).

Publication Date: 
Thursday, June 9, 2022 - 4:00am

Approval and Promulgation of Implementation Plans; Montana; Thompson Falls PM10

The Environmental Protection Agency (EPA) is approving the Limited Maintenance Plan (LMP) submitted by the State of Montana to EPA on November 4, 2021, for the Thompson Falls Moderate nonattainment area (NAA) for particulate matter with an aerodynamic diameter less than or equal to a nominal 10 micrometers (PM<INF>10</INF>) and concurrently redesignating the NAA to attainment for the 24-hour PM<INF>10</INF> National Ambient Air Quality Standard (NAAQS).

Publication Date: 
Wednesday, June 8, 2022 - 4:00am

Approval and Promulgation of Implementation Plans; Montana; Whitefish PM10

The Environmental Protection Agency (EPA) is approving the Limited Maintenance Plan (LMP) submitted by the State of Montana to EPA on August 6, 2021, for the Whitefish Moderate nonattainment area (NAA) for particulate matter with an aerodynamic diameter less than or equal to a nominal 10 micrometers (PM<INF>10</INF>) and concurrently redesignating the NAA to attainment for the 24-hour PM<INF>10</INF> National Ambient Air Quality Standard (NAAQS).

Publication Date: 
Wednesday, June 8, 2022 - 4:00am

Air Plan Approval; Pennsylvania; 2015 Ozone National Ambient Air Quality Standard Nonattainment New Source Review Certification

The Environmental Protection Agency (EPA) is proposing to approve this state implementation plan (SIP) revision that will fulfill Pennsylvania's nonattainment new source review (NNSR) SIP element requirement for the 2015 8-hour ozone national ambient air quality standard (NAAQS). This action is being taken under the Clean Air Act (CAA).

Publication Date: 
Tuesday, May 31, 2022 - 4:00am

Air Plan Approval; Rhode Island; Infrastructure State Implementation Plan Requirements for the 2012 PM2.5

The Environmental Protection Agency (EPA) is approving most elements of a State Implementation Plan (SIP) revision submitted by the State of Rhode Island. This revision addresses the infrastructure requirements of the Clean Air Act (CAA or Act) for the 2012 annual fine particle (PM<INF>2.5</INF>) National Ambient Air Quality Standard (NAAQS). We are not taking action on three elements of this submittal in sections 110(a)(2)(C), (D)(i)(II), and (J) that relate to requirements for the State's Prevention of Significant Deterioration (PSD) program.

Publication Date: 
Tuesday, May 31, 2022 - 4:00am

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