EPA endangerment finding rescission published in Federal Register

The EPA formal rescission of the 2009 Greenhouse Gas Endangerment Finding was published in the Federal Register on February 18, 2026, setting an effective date of April 20, 2026. Publication triggered the 60-day window for legal challenges in the U.S. Court of Appeals for the D.C. Circuit. Environmental groups and 24 state attorneys general filed petitions for review within days of publication.