October Term 2024 · Docket 23-975

Does NEPA require agencies to study distant environmental impacts?

A coalition argues the law mandates studying all foreseeable effects. The county argues agencies should focus on direct impacts.

Official caption
Seven County Coalition v. Eagle County
Latest argument session
Latest official Court activity
Latest verified event
Decided
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Post Opinion

Verified source milestones

  1. — An official oral-argument transcript was verified.
  2. — An official oral-argument transcript was verified.
  3. — An official Court opinion was verified.

The arguments, in order

This case may have been argued more than once. Each entry below uses that session's official transcript. Later arguments do not erase earlier ones.

  1. Argument 1 ·

    What happened at the argument

    Clement argued NEPA is a procedural statute designed to inform decisions.

    Kneedler argued agency decisions should focus on the most useful environmental issues.

    questions_and_answers

    Read the official transcript for this argument · Official argument details

    Sources used for this argument breakdown

A citizen's guide to the whole case

What this case is about

The case tests the scope of environmental review under NEPA. the sides that brought the case seek a broad standard for foreseeable impacts. the opposing sides seek a narrower standard for direct impacts.

Official sources for this section

How the case got here

The Supreme Court heard oral argument in this case on December 10, 2024.

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What each side wants

The coalition wants the Court to adopt a broad foreseeability standard for environmental review.

The county wants the Court to allow agencies to limit review to direct project impacts.

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What each side says

The coalition argues the statute requires studying all reasonably foreseeable environmental effects.

The county argues agencies should concentrate review on issues they deem most useful.

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What the justices asked

Justice Sotomayor asked how to articulate the proposed rule in writing.

Justice Kagan asked if the test excludes impacts beyond eighty-eight miles.

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Why it matters

The outcome defines the geographic and temporal reach of federal environmental reviews. Agencies must decide how far to look for potential harm. This affects project approval timelines and environmental protection scope.

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What happens next

This article currently covers the argument record. Use the official docket link for later case activity.

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Official Court provenance

Official docket and case history · Official Supreme Court oral-argument detail page

Verified official opinions and orders

Title and summary sources

Revision history

  1. Revision 1 · Post Opinion ·

    Correction: Rewritten to the concise citizen-facing editorial standard.

  2. Revision 2 · Post Opinion ·

    Correction: Migrated to the dated official Court activity contract without model use.

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