Endangerment Finding Recission (Massachusetts v. U.S. Environmental Protection Agency, D.C. Circuit)

Lawsuit challenging the Environmental Protection Agency’s recission of its finding under the Clean Air Act that greenhouse gas (GHG) emissions from motor vehicles endanger human health and the environment, and its recission of GHG motor vehicle emission standards.

Litigation Details

Case filed on: March 19, 2026

Docket Links: Trial »

Updates

Date

Update

03/19/2026

On 3/19/26, the states filed their petition for review.

04/22/2026

On 4/22/26, the court issued a case scheduling order.