WASHINGTON — The Environmental Protection Agency finalized the full repeal of the Biden administration’s 2024 greenhouse gas requirements for U.S. power plants on Sept. 14. The action removed federal carbon limits on coal- and gas-fired facilities in what the agency called the largest power sector deregulatory action in American history.
The repeal, announced by EPA Administrator Lee Zeldin, eliminates federal emission standards that would have required existing coal plants and new natural gas plants to adopt carbon capture technology or transition to cleaner fuels. The agency simultaneously proposed rescinding every remaining greenhouse gas standard applicable to the power sector, a two-track action with sweeping consequences for electricity costs, utility planning and the nation’s emissions trajectory.
EPA said the combined actions would deliver $300 billion in savings, though the agency did not specify the time frame or methodology for that estimate. The repeal takes effect immediately, according to the agency.
The Biden-era rules, finalized in 2024, were the federal government’s primary legal mechanism for regulating carbon dioxide emissions from the power sector, which accounts for roughly a quarter of all U.S. greenhouse gas emissions. Environmental groups had defended the standards as essential for meeting U.S. climate commitments.
Legal challenges from environmental organizations are expected. The original Biden rules had already faced litigation from industry groups and Republican-led states, and advocacy organizations such as Earthjustice and the Sierra Club are anticipated to mount court challenges to the repeal itself.
The action came on the same day EPA hosted a G20 Regulatory Efficiency Symposium in Houston, underscoring the administration’s broader deregulatory agenda.
For American consumers, the repeal could affect long-term electricity prices, air quality and the pace at which utilities retire aging fossil fuel plants or invest in renewable energy. State regulators may now face pressure to set their own emission standards in the absence of federal requirements.
The rule will be published in the Federal Register, triggering formal timelines for legal challenges.