605 U.S. 168
U.S.2025Background
- The Surface Transportation Board (STB) approved the construction of an 88-mile railroad in Utah's Uinta Basin to connect the region's oil production with the national rail network, facilitating oil transport to Gulf Coast refineries.
- STB prepared a comprehensive 3,600-page Environmental Impact Statement (EIS) in compliance with NEPA, analyzing the impacts of the railway but not the potential upstream (oil drilling) and downstream (oil refining) environmental effects beyond its regulatory scope.
- Environmental groups and Eagle County, Colorado, challenged the EIS and final approval in the D.C. Circuit, arguing the EIS failed to adequately analyze reasonably foreseeable environmental impacts from increased oil production and refining enabled by the railway.
- The D.C. Circuit vacated the Board’s EIS and project approval, stating NEPA required fuller analysis of upstream and downstream effects.
- The Supreme Court granted certiorari and reversed the D.C. Circuit, emphasizing NEPA’s procedural nature and the need for judicial deference to agency determinations regarding the scope of environmental analysis.
- Justice Sotomayor concurred in the judgment, agreeing the Board was not responsible for environmental harms caused by downstream oil activities as it lacked authority to prevent those harms.
Issues
| Issue | Plaintiff's Argument | Defendant's Argument | Held |
|---|---|---|---|
| Scope of NEPA EIS: Must Board consider upstream/downstream effects? | EIS must analyze reasonably foreseeable impacts from oil drilling/refining enabled by railway | Board need only analyze effects of the rail project itself, not separate projects | NEPA focuses on effects of the proposed project; Board need not assess separate projects |
| Judicial Deference in NEPA Review | Courts can require broader environmental review if Board’s EIS is insufficient | Agencies get substantial deference on what details/impacts to include in EIS | Courts must defer to agency’s choices if reasonable; should not micromanage EIS scope |
| Relevance of Board’s Regulatory Authority | Scope of EIS analysis not limited by Board’s lack of authority over oil production/refining | Board’s lack of authority over oil industry means not responsible for distant impacts | Board not required to analyze impacts it cannot regulate or prevent |
| Vacatur of Agency Action Based on EIS Deficiency | EIS deficiencies require vacating the project approval order | Even if EIS is imperfect, vacatur not necessary unless agency might disapprove project | Only vacate if the deficiency likely affected the agency’s final decision; not mandatory |
Key Cases Cited
- Robertson v. Methow Valley Citizens Council, 490 U.S. 332 (1989) (NEPA requires procedure, not substantive decision; mandates process, not results)
- Department of Transportation v. Public Citizen, 541 U.S. 752 (2004) (agencies need not analyze effects they cannot regulate or prevent)
- Vermont Yankee Nuclear Power Corp. v. NRDC, 435 U.S. 519 (1978) (judicial review under NEPA is limited; courts must defer to reasonable agency decisions)
- Kleppe v. Sierra Club, 427 U.S. 390 (1976) (NEPA review focuses on the proposed federal action, not all possible effects)
- Baltimore Gas & Elec. Co. v. NRDC, 462 U.S. 87 (1983) (agencies receive substantial deference for scientific/predictive judgments in EIS)