EPA water rule review
National Assn. of Mfrs. v. Department of Defense
In brief
The Supreme Court overturned the Sixth Circuit’s ruling and sent the case back to that court.
- Where it stands
- Decided
Decided 9-0 · January 22, 2018 · Opinion by Justice Sotomayor
- What it’s about
- The Court overturned the Sixth Circuit’s ruling and sent the case back to it (remanded), deciding that challenges to the EPA’s Clean Water Act rule defining which waters are covered must be filed in federal district courts, not federal appeals courts.
- Who it affects
- The Sixth Circuit’s ruling no longer stands, and the case returns to that court.
Summary: written with AI from the case record.

What it's about
The challenged rule defines the scope of the Clean Water Act’s coverage.
Question presented
Does the Clean Water Act grant federal courts of appeals jurisdiction to review the Environmental Protection Agency’s rule that defines the scope of United States waters?
What the Court decided
Holding
Judgment REVERSED and case REMANDED. Sotomayor, J., delivered the opinion for a unanimous Court.
- Result
- Reversed
The vote
What's next
The case returns to the Sixth Circuit for further proceedings.
Documents
Docket activity
New analysis added
AI analysis generated: Case Briefing
AI analysis generated: Decision Record
Case data updated: summary, question_presented, generation_metadata
Case data updated: question_presented, extraction_metadata
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Opinion added: Opinion
Opinion added: opinion
Brief added: Questions Presented
Sources
Primary materials plus reporting. Best-effort analysis: this explainer relies on a mix of primary materials and trusted secondary sources. Official filings and opinions remain authoritative.