EPA to repeal carbon standards

How it unfolded

1. Sep 9, 2026NHTSA reverses course on standalone engine fuel economy standards for medium- and heavy-duty vehicles; a legal brief notes the EPA in February 2026 rescinded its greenhouse gas emission standards for motor vehicles and engines after rescinding the 2009 endangerment finding, with that repeal now subject to litigation.
2. Sep 10, 2026The EPA announced it was eliminating the 2009 Greenhouse Gas Endangerment Finding and all subsequent federal GHG emission standards for vehicles and engines of model years 2012 to 2027 and beyond, calling it the single largest deregulatory action in U.S. history.
3. Sep 13, 2026Bloomberg News reported, citing unnamed people familiar with the matter, that the EPA is poised to formally repeal carbon pollution standards for coal- and gas-fired power plants, expected as soon as Monday on the sidelines of the G20 energy ministers' meeting in Houston, Texas.