EPA Repeals Power Plant Greenhouse Gas Rules: What Changed
On September 14, 2026, the U.S. Environmental Protection Agency repealed rules limiting greenhouse gas emissions from coal- and gas-fired power plants. Al Jazeera
EPA Administrator Lee Zeldin announced the repeal at a news conference in Houston. The announcement was made on the sidelines of a G20 ministerial meeting on energy abundance in Houston. The agency estimated the repeal would eliminate more than $300 billion in costs for power plants.
The action centers on Section 111 of the Clean Air Act, the part of the law that gives EPA authority over power-plant pollution. Zeldin proposed to repeal all greenhouse gas emissions standards for the power sector under that authority. EPA sets New Source Performance Standards for greenhouse gas emissions from new, modified, and reconstructed fossil fuel-fired power plants. Like speed limits for new cars, these standards set a ceiling for pollution from new or updated plants.
The EPA also proposed a separate rule that could prevent future administrations from regulating greenhouse gas emissions from power plants. That rule is expected to be finalized next year. The proposal would move beyond rescinding existing standards to constraining future regulatory authority over the sector.
In February 2026, the EPA revoked its 2009 finding that carbon dioxide and other greenhouse gases threaten public health and welfare. On February 12, 2026, the agency finalized its rescission of the 2009 Greenhouse Gas Endangerment Finding. EPA
The Trump administration withdrew the United States from the 2015 Paris climate accord for a second time. That withdrawal preceded the power-sector repeal and removed the United States from the principal multilateral emissions framework.
The September 14 announcement followed prior signals. On September 13, 2026, Reuters reported that the EPA was poised to formally repeal carbon pollution standards for coal- and gas-fired power plants. Reuters By May 2025, the agency had drafted a plan to eliminate all limits on greenhouse gases from coal- and gas-fired power plants.
Parallel White House actions addressed coal plants and vehicle emissions. President Donald J. Trump signed a proclamation granting two years of relief from a Biden-era environmental rule to certain coal-fired power plants. White House The White House stated that "America's clean coal resources will be critical to meeting the rise in electricity demand." The White House's 'Unleashing American Energy' presidential action calls for "terminating, where appropriate, state emissions waivers that limit sales of gasoline-powered automobiles."
The broader context here is a shift from case-by-case deregulation to structural preclusion. The repeal removes current Section 111 greenhouse gas standards for the power sector. The Endangerment Finding rescission removes the predicate determination for greenhouse gas regulation. The proposed follow-on rule would then codify limits on future power-sector regulation.
Looking at what this means for diplomats and regulators, the venue and timing carry weight. Announcing a domestic repeal at a G20 energy meeting links U.S. regulatory policy to its international energy diplomacy. The second Paris withdrawal clarifies Washington's posture toward multilateral climate commitments. For expert readers, the next decision points are administrative and judicial. The follow-on rule must go through proposal to finalization. State waiver policy, NSPS applicability, and Section 111 interpretation will define how far the repeal extends in practice.
