Incorporation by reference

Approval and Promulgation of Air Quality Implementation Plan; Delaware; Emissions Statement Certification for the 2015 Ozone National Ambient Air Quality Standard

The Environmental Protection Agency (EPA) is approving a state implementation plan (SIP) revision formally submitted by the Delaware Department of Natural Resources and Environmental Control (DNREC). The revision provides Delaware's certification that its existing emissions statement program satisfies the emissions statement requirements of the Clean Air Act (CAA) for the 2015 ozone national ambient air quality standard (NAAQS).

Publication Date: 
Wednesday, January 19, 2022 - 4:00am

Disapproval of Air Quality Implementation Plans; Wyoming; Proposed Revisions to Regional Haze State Implementation Plan

The Environmental Protection Agency (EPA) is proposing to disapprove a State Implementation Plan (SIP) revision submitted by the State of Wyoming on May 14, 2020, and supplemented in September and October 2020, addressing regional haze (``Wyoming's 2020 SIP revision'').

Publication Date: 
Tuesday, January 18, 2022 - 4:00am

Air Plan Approval; Ohio; Partial Approval and Partial Disapproval of the Muskingum River SO2

The Environmental Protection Agency (EPA) is partially approving and partially disapproving a revision to the Ohio State Implementation Plan (SIP) intended to provide for attainment of the 2010 primary, health-based 1-hour sulfur dioxide (SO<INF>2</INF>) national ambient air quality standard (NAAQS or ``standard'') for the Muskingum River SO<INF>2</INF> nonattainment area.

Publication Date: 
Tuesday, January 18, 2022 - 4:00am

Air Plan Approval; Maryland; Philadelphia Area Base Year Inventory for the 2015 Ozone National Ambient Air Quality Standard

The Environmental Protection Agency (EPA) is proposing to approve a state implementation plan (SIP) revision submitted by the State of Maryland. This revision consists of the base year inventory for the Maryland portion of the Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE marginal nonattainment area (Philadelphia Area) for the 2015 ozone national ambient air quality standard (NAAQS). This action is being taken under the Clean Air Act (CAA).

Publication Date: 
Friday, January 14, 2022 - 4:00am

Limited Approval and Limited Disapproval of California Air Quality Implementation Plan Revisions; Amador Air District; Stationary Source Permits

The Environmental Protection Agency (EPA) is finalizing a limited approval and limited disapproval of a revision to the Amador Air District's (AAD 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 ``Act'').

Publication Date: 
Wednesday, January 12, 2022 - 4:00am

Air Plan Approval; Wisconsin; Redesignation of the Rhinelander Sulfur Dioxide Nonattainment Area

The Environmental Protection Agency (EPA) is redesignating the Rhinelander nonattainment area, which consists of a portion of Oneida County (Crescent Township, Newbold Township, Pine Lake Township, Pelican Township, and the City of Rhinelander), to attainment for the 2010 primary, health-based 1-hour sulfur dioxide (SO<INF>2</INF>) National Ambient Air Quality Standard (NAAQS). EPA is also approving Wisconsin's SO<INF>2</INF> maintenance plan for the Rhinelander area.

Publication Date: 
Wednesday, January 12, 2022 - 4:00am

Air Plan Approval; North Carolina: Mecklenburg General Provisions

The Environmental Protection Agency (EPA) is finalizing approval of a State Implementation Plan (SIP) revision to the Mecklenburg County portion of the North Carolina SIP, hereinafter referred to as the Mecklenburg County Local Implementation Plan (LIP). The revision was submitted through the North Carolina Division Air Quality (NCDAQ), on behalf of Mecklenburg County Air Quality (MCAQ), via a letter dated April 24, 2020, and was received by EPA on June 19, 2020.

Publication Date: 
Tuesday, January 11, 2022 - 4:00am

Air Plan Approval; North Carolina; Minor Revisions to Cotton Ginning Operations Rule

The Environmental Protection Agency (EPA) is approving a revision to the North Carolina State Implementation Plan (SIP) submitted by the State of North Carolina Department of Environmental Quality, Division of Air Quality, via a letter dated April 13, 2021, and received by EPA on April 14, 2021. This revision contains minor clarifying and typographical edits to North Carolina's cotton ginning operations rule. EPA is finalizing approval of these changes pursuant to the Clean Air Act (CAA or Act).

Publication Date: 
Tuesday, January 11, 2022 - 4:00am

National Emission Standards for Hazardous Air Pollutants: Primary Copper Smelting Residual Risk and Technology Review and Primary Copper Smelting Area Source Technology Review

This proposal presents the results of the U.S. Environmental Protection Agency's (EPA's) residual risk and technology review (RTR) for the National Emission Standards for Hazardous Air Pollutants (NESHAP) for major source Primary Copper Smelters as required under the Clean Air Act (CAA). Pursuant to the CAA, this action also presents the results of the technology review for the Primary Copper Smelting area source NESHAP. The EPA is proposing new emissions standards in the major source NESHAP.

Publication Date: 
Tuesday, January 11, 2022 - 4:00am

Revised 2023 and Later Model Year Light-Duty Vehicle Greenhouse Gas Emissions Standards

The Environmental Protection Agency (EPA) is revising the greenhouse gas (GHG) emissions standards under the Clean Air Act section 202(a) for light-duty vehicles for 2023 and later model years to make the standards more stringent.

Publication Date: 
Thursday, December 30, 2021 - 4:00am

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