EPA v. Calumet Shreveport Refining

EPA v. Calumet Shreveport Refining
Argued March 25, 2025
Decided June 18, 2025
Full case nameEnvironmental Protection Agency v. Calumet Shreveport Refining, LLC
Docket no.23-1229
Citations605 U.S. 627 (more)
ArgumentOral argument
Case history
PriorCalumet Shreveport Refining v. EPA 86 F.4th 1121 (5th Cir. 2023)
Holding
The EPA's denials of small refinery exemption petitions are locally or regionally applicable actions that fall within the "nationwide scope or effect" exception of the Clean Air Act, requiring venue in the D.C. Circuit.
Court membership
Chief Justice
John Roberts
Associate Justices
Clarence Thomas · Samuel Alito
Sonia Sotomayor · Elena Kagan
Neil Gorsuch · Brett Kavanaugh
Amy Coney Barrett · Ketanji Brown Jackson
Case opinions
MajorityThomas, joined by Alito, Sotomayor, Kagan, Kavanaugh, Barrett, Jackson
DissentGorsuch, joined by Roberts
Laws applied
Clean Air Act

EPA v. Calumet Shreveport Refining, 605 U.S. 627 (2025), is a United States Supreme Court case in which the court held that the Environmental Protection Agency's denials of small refinery exemption petitions are locally or regionally applicable actions that fall within the "nationwide scope or effect" exception of the Clean Air Act, requiring venue in the D.C. Circuit.