Seven County Infrastructure Coalition v. Eagle County

Decided May 29, 2025. Brett M. Kavanaugh delivered the opinion of the Court.

Docket 23-975 · 605 U.S. 168 (2025) · Cited 12 times

Holding

The D. C. Circuit failed to afford the U. S. Surface Transportation Board the substantial deference required when reviewing agency action under the National Environmental Policy Act, and incorrectly interpreted NEPA to require the Board to consider in its environmental impact statement the environmental effects of temporally and geographically separate upstream and downstream projects unrelated to the Uinta Basin Railway.

The Court’s statement of the holding, from the opinion’s syllabus. The syllabus is prepared by the Reporter of Decisions and is not part of the opinion of the Court. Read the official opinion for authority.

How the Justices voted

Decided 8–0.

“Concurring” means agreeing with the outcome; any split shown is the Court’s judgment, not each Justice’s reasoning. The lineup is the syllabus’s disposition of who wrote and joined each opinion. Source: the opinion’s syllabus (supremecourt.gov).

Precedents cited

Supreme Court decisions this opinion relies on, ordered by how often it cites each. Cases in our collection link through; others are named.

• Department of Transportation v. Public Citizen · 541 U.S. 752 (2004)
• Metropolitan Edison Co. v. People Against Nuclear Energy · 460 U.S. 766 (1983)
• Vermont Yankee Nuclear Power Corp. v. Natural Resources Defense Council, Inc. · 435 U.S. 519 (1978)
• Marsh v. Oregon Natural Resources Council · 490 U.S. 360 (1989)
• Kleppe v. Sierra Club · 427 U.S. 390 (1976)
• Strycker's Bay Neighborhood Council, Inc. v. Karlen · 444 U.S. 223 (1980)
• Robertson v. Methow Valley Citizens Council · 490 U.S. 332 (1989)
• Loper Bright Enterprises v. Raimondo · 603 U.S. 369 (2024)
• Aberdeen & Rockfish R. Co. v. Students Challenging Regulatory Agency Procedures (SCRAP) · 422 U.S. 289 (1975)
• Motor Vehicle Mfrs. Assn. of United States, Inc. v. State Farm Mut. Automobile Ins. Co. · 463 U.S. 29 (1983)
• Baltimore Gas & Electric Co. v. Natural Resources Defense Council, Inc. · 462 U.S. 87 (1983)
• United States v. Detroit Timber & Lumber Co. · 200 U.S. 321 (1906)
• Davis v. Michigan Department of the Treasury · 489 U.S. 803 (1989)
• Kisor v. Wilkie · 588 U.S. 558 (2019)
• Andrus v. Sierra Club · 442 U.S. 347 (1979)
• FCC v. Prometheus Radio Project · 592 U.S. 414 (2021)

Official text

Read the official opinion (PDF, supremecourt.gov)

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Source: Supreme Court of the United States, slip opinions (2025). Citation count from the Free Law Project’s CourtListener bulk data. Data last verified 2026-08-15. Informational only; verify against the primary source before relying. Not a consumer report (FCRA).