Incorporation by reference

Air Plan Approval; North Carolina; Revision to Approved Motor Vehicle Emissions Budgets

The Environmental Protection Agency (EPA) is proposing to approve a revision to the North Carolina State Implementation Plan (SIP), submitted by the North Carolina Department of Environmental Quality (NCDEQ), Division of Air Quality, on December 19, 2022.

Publication Date: 
Friday, April 12, 2024 - 4:00am

Air Plan Approval; KY; Updates to Attainment Status Designations

The Commonwealth of Kentucky, through the Kentucky Energy and Environment Cabinet (Cabinet), Kentucky Division for Air Quality (KDAQ), submitted a revision to the Kentucky State Implementation Plan (SIP) on November 29, 2022. The SIP revision updates the geographical boundary description and attainment status designation for the Henderson-Webster nonattainment area for the 2010 Sulfur Dioxide (SO<INF>2</INF>) primary National Ambient Air Quality Standards (NAAQS).

Publication Date: 
Thursday, April 11, 2024 - 4:00am

Air Plan Approval; Arizona; Maricopa County Air Quality Department

The Environmental Protection Agency (EPA) is taking final action 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 approving a local rule under the Clean Air Act (CAA or the Act).

Publication Date: 
Thursday, April 4, 2024 - 4:00am

National Emission Standards for Hazardous Air Pollutants: Integrated Iron and Steel Manufacturing Facilities Technology Review

The U.S. Environmental Protection Agency (EPA or the Agency) is finalizing amendments to the National Emission Standards for Hazardous Air Pollutants (NESHAP) for Integrated Iron and Steel Manufacturing Facilities to regulate hazardous air pollutant (HAP) emissions.

Publication Date: 
Wednesday, April 3, 2024 - 4:00am

Air Plan Revisions; California; Yolo-Solano Air Quality Management District

The Environmental Protection Agency (EPA) is taking final action to approve state implementation plan (SIP) revisions to the Yolo-Solano Air Quality Management District (YSAQMD) portion of the California SIP. These revisions concern emissions of oxides of nitrogen (NO<INF>X</INF>) from biomass boilers, and address reasonably available control technology (RACT) requirements for major sources of NO<INF>X</INF> in the portion of the Sacramento Metro, CA, nonattainment area that is subject to YSAQMD jurisdiction.

Publication Date: 
Thursday, March 14, 2024 - 4:00am

Standards of Performance for New, Reconstructed, and Modified Sources and Emissions Guidelines for Existing Sources: Oil and Natural Gas Sector Climate Review

The Environmental Protection Agency (EPA) is finalizing multiple actions to reduce air pollution emissions from the Crude Oil and Natural Gas source category. First, the EPA is finalizing revisions to the new source performance standards (NSPS) regulating greenhouse gases (GHGs) and volatile organic compounds (VOCs) emissions for the Crude Oil and Natural Gas source category pursuant to the Clean Air Act (CAA).

Publication Date: 
Friday, March 8, 2024 - 4:00am

Approval of State Plans for Designated Facilities and Pollutants; MO; Approval and Promulgation of Implementation Plans; Control of Emissions From Existing Municipal Solid Waste Landfills

The Environmental Protection Agency (EPA) is approving a revision to the Missouri State Implementation Plan (SIP) related to municipal solid waste landfills in the St. Louis ozone nonattainment area. The revision to this rule includes incorporating by reference Emission Guidelines (EG) for Municipal Solid Waste (MSW) landfills. EPA is approving this SIP revision based on EPA's finding that the rule implements more stringent thresholds and do not impact the stringency of the SIP or have an adverse effect on air quality.

Publication Date: 
Friday, February 16, 2024 - 4:00am

Air Plan Approval; Iowa; State Implementation Plan and State Operating Permits Program

The Environmental Protection Agency (EPA) is proposing to approve revisions to the Iowa State Implementation Plan (SIP) and the Operating Permit Program for the State of Iowa. The revisions update incorporations by reference to EPA methods for performance testing (stack testing), update the definitions, and adopt the most recent National Ambient Air Quality Standards (NAAQS) for ozone. These revisions do not impact the stringency of the SIP or have an adverse effect on air quality.

Publication Date: 
Friday, February 16, 2024 - 4:00am

Air Plan Approval and Operating Permit Program Approval; Connecticut; Revision to Definitions

The Environmental Protection Agency (EPA) is taking final action to approve, through parallel processing, a revised definition in the State Implementation Plan (SIP) and the Title V Operating Permit Program for the State of Connecticut. On November 30, 2023, the Connecticut Department of Energy and Environmental Protection (CT DEEP) submitted to EPA the State's adopted regulatory amendments to the definition of ``severe non-attainment area for ozone'' for inclusion in the EPA-approved SIP and Title V Operating Permit Program.

Publication Date: 
Monday, February 12, 2024 - 4:00am

Air Plan Approval; Georgia; Vehicle Inspection and Maintenance Program

The Environmental Protection Agency (EPA) is approving changes to Georgia's State Implementation Plan (SIP) 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: 
Friday, February 9, 2024 - 4:00am

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