Environmental Protection Agency December 20, 2024 – Federal Register Recent Federal Regulation Documents
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Release of Volumes 1 and 2 of the Integrated Review Plan for the National Ambient Air Quality Standards for Ozone and Related Photochemical Oxidants
On or about December 20, 2024, the Environmental Protection Agency (EPA) is making available to the public Volumes 1 and 2 of the Integrated Review Plan for the National Ambient Air Quality Standards for Ozone and Related Photochemical Oxidants (IRP). The national ambient air quality standards (NAAQS) from photochemical oxidants are set to protect public health and public welfare from these pollutants in ambient air. Volume 1 of the IRP contains contextual background material for the current review of the air quality criteria and the NAAQS. Volume 2 identifies policy-relevant issues in the review and describes key considerations in the EPA's development of the Integrated Science Assessment (ISA). The ISA provides the scientific basis for the EPA's decisions, in conjunction with additional technical and policy assessments, for the review of the NAAQS, as described in sections 108 and 109 of the Clean Air Act.
Air Plan Approval; Georgia; Update to Materials Incorporated by Reference
The Environmental Protection Agency (EPA) is updating the materials that are incorporated by reference (IBR) into the Georgia State Implementation Plan (SIP). The regulations affected by this update have been previously submitted by Georgia and approved by EPA. In this notice, EPA is also notifying the public of corrections to the Code of Federal Regulations (CFR) tables that identify material incorporated by reference into the Georgia SIP. This update affects the materials that are available for public inspection at the National Archives and Records Administration (NARA) and the EPA Regional Office.
Air Plan Disapproval; Texas; Control of Air Pollution From Visible Emissions and Particulate Matter
Pursuant to the Federal Clean Air Act (CAA, the Act), the Environmental Protection Agency (EPA) is disapproving a revision to the Texas State Implementation Plan (SIP) submitted by the State of Texas through the Texas Commission on Environmental Quality (TCEQ) on August 20, 2020 (2020 SIP revision). The 2020 SIP revision addresses emissions during planned Maintenance, Startup and Shutdown (MSS) activities for certain Electric Generating Units (EGUs) and includes requirements intended to address visible emissions (opacity) and Particulate Matter (PM) emissions during planned MSS activities. The requirements are included in eight Agreed Orders (AOs) issued by TCEQ to the affected EGUs and provided in the 2020 SIP revision. EPA determined that the requirements contained in these AOs do not meet the CAA enforceability requirements or the CAA requirement that emission limitations must apply on a continuous basis. We are taking this action in accordance with section 110 of the Act.
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