Intergovernmental relations

Air Plan Approval; Michigan; Redesignation of the Detroit, MI Area to Attainment of the 2015 Ozone Standards

The Environmental Protection Agency (EPA) is finalizing its redesignation of the Detroit, Michigan area to attainment for the 2015 ozone National Ambient Air Quality Standards (NAAQS) in accordance with a request from the Michigan Department of Environment, Great Lakes, and Energy (EGLE). EGLE submitted this request on January 3, 2022. EPA is approving, as a revision to the Michigan State Implementation Plan (SIP), the State's plan for maintaining the 2015 ozone NAAQS through 2035 in the Detroit area.

Publication Date: 
Friday, May 19, 2023 - 4:00am

Review of Standards of Performance for Automobile and Light Duty Truck Surface Coating Operations

The Environmental Protection Agency (EPA) is finalizing amendments to the new source performance standards for Automobile and Light Duty Truck Surface Coating Operations pursuant to the review required by the Clean Air Act. The EPA determined that revisions to the NSPS were needed to reflect the degree of emission limitation achievable through the application of the best system of emission reduction (BSER).

Publication Date: 
Tuesday, May 9, 2023 - 4:00am

Clean Air Plans; 2015 8-Hour Ozone Nonattainment Area Requirements; Clean Fuels or Advanced Control Technology for Boilers; San Joaquin Valley and Los Angeles-South Coast Air Basin, California

The Environmental Protection Agency (EPA) is taking final action to approve revisions to the California State Implementation Plan (SIP) concerning the provisions for clean fuels or advanced control technology for boilers for the 2015 ozone national ambient air quality standards (``2015 ozone NAAQS'') in the San Joaquin Valley and Los Angeles--South Coast Air Basin, California (``South Coast'') ozone nonattainment areas.

Publication Date: 
Monday, May 8, 2023 - 4:00am

Approval and Promulgation of Air Quality Implementation Plan; Mohegan Tribe of Indians of Connecticut

The Environmental Protection Agency (EPA) is approving amendments to the Mohegan Tribe of Indians of Connecticut (the Mohegan Tribe, Mohegans, or the Tribe) Tribal Implementation Plan (TIP) under the Clean Air Act (CAA) to regulate air pollution within the exterior boundaries of the Tribe's reservation. EPA approved the Tribe for treatment in the same manner as a State (Treatment as State or TAS) for purposes of administering New Source Review (NSR) under the CAA on December 26, 2006.

Publication Date: 
Tuesday, April 25, 2023 - 4:00am

Air Plan Approval; Illinois; VOC RACT Requirements for Aerospace Manufacturing and Rework Operations

The Environmental Protection Agency (EPA) is approving State Implementation Plan (SIP) rule revisions submitted by the Illinois Environmental Protection Agency (IEPA or Illinois) on April 13, 2021, and supplemented by a Clean Air Act (CAA) section 110(l) demonstration submitted on October 6, 2022. Illinois requests that EPA approve rule revisions related to control of volatile organic compound (VOC) emissions from aerospace manufacturing and rework facilities into Illinois' SIP.

Publication Date: 
Tuesday, April 11, 2023 - 4:00am

Determination of Attainment by the Attainment Date but for International Emissions for the 2015 Ozone National Ambient Air Quality Standard; El Paso-Las Cruces, Texas-New Mexico; Extension of Comment Period

The Environmental Protection Agency (EPA) is extending the comment period for the proposed rule ``Determination of Attainment by the Attainment Date But For International Emissions for the 2015 Ozone National Ambient Air Quality Standard; El Paso-Las Cruces, Texas-New Mexico'' that was published on March 7, 2023. The proposal provided for a public comment period ending April 6, 2023. The EPA received a request from the public to extend this comment period. The EPA is extending the comment period to May 8, 2023.

Publication Date: 
Tuesday, April 4, 2023 - 4:00am

Air Plan Approval; ID; Incorporation by Reference Updates

The Environmental Protection Agency (EPA) is approving a revision to the Idaho State Implementation Plan (SIP) submitted on May 4, 2022. The submission updates the incorporation by reference of the national ambient air quality standards and related planning and monitoring requirements into the Idaho air quality rules as of July 1, 2021. Idaho undertakes such updates regularly to ensure the state air quality rules and the federally enforceable Idaho SIP remain consistent with EPA air quality regulations over time.

Publication Date: 
Wednesday, March 29, 2023 - 4:00am

Air Plan Approval; Indiana; Revisions to Particulate Matter Rules; Vertellus

The Environmental Protection Agency (EPA) is approving a revision to the Indiana particulate matter State Implementation Plan (SIP) that Indiana submitted to EPA on September 16, 2021, for the Vertellus Agriculture and Nutrition Specialties, LLC (Vertellus) facility located in Indianapolis, Marion County. Indiana requested revisions to incorporate site-specific updates to the particulate matter emission limits for Vertellus. The updates reflect revised emission rates for particulate matter resulting from process changes related to control strategies for other pollutants.

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

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

Approval and Promulgation of State Plans for Designated Facilities and Pollutants: Maine; 111(d)/129 Revised State Plan for Large Municipal Waste Combustors and State Plan for Small Municipal Waste Combustors

The Environmental Protection Agency (EPA) is approving the Clean Air Act (CAA) State Plan for Municipal Waste Combustor (MWC) units submitted by the Maine Department of Environmental Protection (Maine DEP). This submission includes revisions to Maine's previously approved State Plan for existing Large MWCs in response to amended emission guidelines (EGs) for Large MWCs. This submission also includes a State Plan for existing Small MWCs.

Publication Date: 
Tuesday, March 14, 2023 - 4:00am

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