605 U.S. 627 (2025) · 2025
EPA v. Calumet Shreveport Refining, L.L.C.
environmental lawClean Air Actrenewable fuelsvenueEPArefineriesLandmark
Summary
EPA v. Calumet Shreveport Refining held that challenges to the small-refinery exemption denials at issue had to be filed in the D.C. Circuit because EPA made and published a determination of nationwide scope or effect. The merits of the exemption denials were left for the proper court.
Background & Context
The Renewable Fuel Standard requires fuel producers to blend renewable fuels or acquire credits. Small refineries may seek hardship exemptions. This case involved EPA's denial of several such petitions and the statutory rule deciding whether regional circuits or the D.C. Circuit hear challenges.
The Question Before the Court
Under the Clean Air Act, did venue for challenges to EPA's small-refinery exemption denials lie in regional circuits or in the D.C. Circuit?
Petitioner
Environmental Protection Agency
Party asking the Court to review or reverse
Argued
- The cases belonged in the D.C. Circuit.
Respondent
Calumet Shreveport Refining, L.L.C., et al.
Party defending the judgment below
Argued
- Regional circuits were proper.
The Holding
EPA denials of small-refinery exemption petitions are locally or regionally applicable actions, but EPA's published determination gave them nationwide scope or effect, so venue belonged in the D.C. Circuit under the Clean Air Act.
The Court
How the justices lined up in this decision.
7-2
Vote
Joined decision
7 justicesAC
Amy Barrett
Majority
BK
Brett Kavanaugh
Majority
CT
Clarence Thomas
Majority
EK
Elena Kagan
Majority
KB
Ketanji Jackson
Majority
SA
Samuel Alito
Majority
SS
Sonia Sotomayor
Majority
Dissented
2 justicesJR
John Roberts
Dissent
NG
Neil Gorsuch
Dissent
What this means for you
The ruling channels important renewable-fuel exemption challenges to the D.C. Circuit when EPA makes a nationwide-scope determination. That affects refineries, biofuel producers, environmental policy, and communities tied to refinery economics. It does not decide the merits of any exemption request.
Key Takeaways
- The decision addressed Clean Air Act venue, not refinery entitlement to exemptions.
- The challenged denials were local or regional actions.
- EPA's nationwide-scope determination triggered D.C. Circuit venue.
- The ruling reversed the Fifth Circuit's venue path.
- The case affects where renewable-fuel exemption disputes are litigated.
Decision
7-2 majority opinion
- Citation
- 605 U.S. 627 (2025)
- Vote
- 7-2
- Decision type
- Majority opinion
- Argued
- March 25, 2025
- Decided
- June 18, 2025
- Term
- 2024
- Opinion author
- Clarence Thomas
Justice Thomas wrote the Court's opinion, joined by Justices Alito, Sotomayor, Kagan, Kavanaugh, Barrett, and Jackson. Justice Gorsuch dissented, joined by Chief Justice Roberts.