Greenhouse Gas Standards and Guidelines for Fossil Fuel-Fired Power Plants
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Rule Summary
On September 14, 2026, EPA Administrator Lee Zeldin signed the final Partial Repeal of the Carbon Pollution Standards for Fossil Fuel-Fired Electric Generating Units. EPA supplemented this action with the proposed Rescission of the Greenhouse Gas Findings for Fossil Fuel-Fired Power Plants and Repeal of Regulations for Power Plant Greenhouse Gas Emissions Under Clean Air Act Section 111. These actions would ensure affordable and reliable energy supplies and drive down the costs of transportation, heating, utilities, farming, and manufacturing while boosting our national security.
Rule History
09/14/2026 - Final Rule: Partial Repeal of the Carbon Pollution Standards for Fossil Fuel-Fired Electric Generating Units
06/11/2025 - Proposed Rule: Repeal of Greenhouse Gas Emissions Standards for Fossil Fuel-Fired Electric Generating Units
01/08/2025 - Notice of final action denying or partially denying petitions for reconsideration
11/20/2023 - Supplemental Notice of Proposed Rulemaking
06/16/2023 - Comment Period Extension
Additional Resources
General Fact Sheet-- Final Action & Supplemental Proposal (pdf)
Technical Fact Sheet-- Final Action & Supplemental Proposal (pdf)
Supporting Information for the 2025 Proposal
Regulatory Text: Primary Proposal (pdf)
Regulatory Text: Alternative Proposal (pdf)
See Supporting Information for Petitions for Reconsideration (January 2025)
See Supporting Information for the Final Carbon Pollution Standards (April 2024)