Greenhouse Gas Standards and Guidelines for Fossil Fuel-Fired Power Plants
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EPA is proposing Clean Air Act emission limits and guidelines for carbon dioxide (CO2) from fossil fuel-fired power plants based on cost-effective and available control technologies.
The proposals would set limits for new gas-fired combustion turbines, existing coal, oil and gas-fired steam generating units, and certain existing gas-fired combustion turbines.
Consistent with EPA’s traditional approach to establishing pollution standards for power plants under section 111 of the Clean Air Act, the proposed standards are based on technologies such as carbon capture and sequestration/storage (CCS), low-GHG hydrogen co-firing, and natural gas co-firing, which can be applied directly to power plants that use fossil fuels to generate electricity.
As laid out in section 111 of the Clean Air Act, the proposed new source performance standards (NSPS) and emission guidelines reflect the application of the best system of emission reduction (BSER) that, taking into account costs, energy requirements, and other statutory factors, is adequately demonstrated for the purpose of improving the emissions performance of the covered electric generating units.
11/20/2023 - Supplemental Notice of Proposed Rulemaking
06/16/2023 - Comment Period Extension
05/23/2023 - Proposed Rule: New Source Performance Standards for Greenhouse Gas Emissions from New, Modified, and Reconstructed Fossil Fuel-Fired Electric Generating Units (EGUs); Emission Guidelines for Greenhouse Gas Emissions from Existing Fossil Fuel-Fired EGUs
Initial Regulatory Flexibility Analysis
Initial Regulatory Flexibility Analysis for the Supplemental Proposal: NSPS for GHG Emissions from New, Modified, and Reconstructed Fossil Fuel-Fired EGUs; Emission Guidelines for GHG from Existing EGUs and Repeal of the ACE Rule (pdf)
Regulatory Impact Analysis
Regulatory Impact Analysis for the Proposed New Source Performance Standards for Greenhouse Gas Emissions from New, Modified, and Reconstructed Fossil Fuel-Fired EGUs; Emission Guidelines for Greenhouse Gas Emissions from Existing Fossil Fuel-Fired EGUs
Proposed Regulatory Text
Technical Support Documents
EPA held webinars on June 6 and 7, 2023, to provide an overview of the proposed rules, information on how to effectively engage in the regulatory process, and an opportunity to participate in a Q&A session . The target audience for the webinars is Tribal environmental professionals, communities and organizations with environmental justice concerns. EPA plans to post a recording of the webinar when it is available.
EPA held a virtual public hearing on June 13, 14 and 15, 2023, to provide the public the opportunity to present comments and information regarding the proposal for carbon pollution standards for fossil fuel-fired power plants.