New Source Performance Standards for Greenhouse Gas Emissions From New, Modified, and Reconstructed Fossil Fuel-Fired Electric Generating Units; Emission Guidelines for Greenhouse Gas Emissions From Existing Fossil Fuel-Fired Electric Generating Units; and Repeal of the Affordable Clean Energy Rule

Document Headings Document headings vary by document type but may contain the following: the agency or agencies that issued and signed a document the number of the CFR title and the number of each part the document amends, proposes to amend, or is directly related to the agency docket number / agency internal file number the RIN which identifies each regulatory action listed in the Unified Agenda of Federal Regulatory and Deregulatory Actions See the Document Drafting Handbook for more details. Environmental Protection Agency 40 CFR Part 60 [EPA-HQ-OAR-2023-0072; FRL-8536-04-OAR] RIN 2060-AV09 AGENCY: Environmental Protection Agency (EPA) ACTION: Supplemental notice of proposed rulemaking. SUMMARY: The Environmental Protection Agency (EPA) is announcing the availability of and soliciting comment on an Initial Regulatory Flexibility Analysis (IRFA) following the completion of a Small Business Advocacy Review (SBAR) Panel for the proposed New Source Performance Standards for Greenhouse Gas Emissions from New, Modified, and Reconstructed Fossil Fuel-Fired Electric Generating Units. The EPA is seeking public comment on the regulatory flexibilities considered in the IRFA. In addition, the EPA is soliciting comment on whether to include mechanisms to address potential reliability issues raised by small business and other commenters with respect to both proposed New Source Performance Standards and the proposed Emission Guidelines for Greenhouse Gas Emissions from Existing Fossil Fuel-Fired Electric Generating Units. DATES: Comments. Comments must be received on or before December 20, 2023. ADDRESSES: You may send comments, identified by Docket ID No. EPA-HQ-OAR-2023-0072, by any of the following methods: Federal eRulemaking Portal: https://www.regulations.gov (our preferred method). Follow the online instructions for submitting comments. Email: a-and-r-docket@epa.gov . Include Docket ID No. EPA-HQ-OAR-2023-0072 in the subject line of the message. Fax: (202) 566-9744. Atte…