The Environmental Protection Agency (EPA) finalized its rescission of the 2009 greenhouse gas (GHG) “endangerment finding” on February 18, 2026. EPA had concluded in 2009 that emissions of “greenhouse gases from new motor vehicles and new motor vehicle engines contribute to the greenhouse gas air pollution that endangers public health and welfare” under § 202(a)(1) of the Clean Air Act (CAA). In this recent action, EPA also rescinded all subsequent GHG vehicle and engine emissions standards predicated on the 2009 endangerment finding.