Kleppe, Secretary of the Interior, et al. v. Sierra Club et al.

Decided June 28, 1976. Lewis Franklin Powell Jr. delivered the opinion of the Court.

Docket 75-552 · 427 U.S. 390 (1976) · Cited 1,141 times

We don’t yet publish a summary of this opinion — read the official text below for the Court’s holding and reasoning.

How the Justices voted

Decided 7–2.

“Concurring” means agreeing with the outcome; any split shown is the Court’s judgment, not each Justice’s reasoning. Source: the Supreme Court Database (Spaeth et al.), Washington University.

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.

• Aberdeen & Rockfish R. Co. v. Students Challenging Regulatory Agency Procedures (SCRAP) · 422 U.S. 289 (1975)
• Flint Ridge Development Co. v. Scenic Rivers Assn. of Okla. · 426 U.S. 776 (1976)
• Citizens to Preserve Overton Park, Inc. v. Volpe · 401 U.S. 402 (1971)
• United States v. Watson · 423 U.S. 411 (1976)
• Barlow v. Collins · 397 U.S. 159 (1970)

Cited by

Later Supreme Court opinions in our collection that cite this case.

• Seven County Infrastructure Coalition v. Eagle County · 605 U.S. 168 (2025)
• Robertson v. Methow Valley Citizens Council · 490 U.S. 332 (1989)
• Strycker's Bay Neighborhood Council, Inc. v. Karlen · 444 U.S. 223 (1980)
• 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)
• Baltimore Gas & Electric Co. v. Natural Resources Defense Council, Inc. · 462 U.S. 87 (1983)
• Monsanto Co. v. Geertson Seed Farms · 561 U.S. 139 (2010)
• Andrus v. Sierra Club · 442 U.S. 347 (1979)
• Weinberger v. Catholic Action of Hawaii/Peace Education Project · 454 U.S. 139 (1981)
• Winter v. Natural Resources Defense Council, Inc. · 555 U.S. 7 (2008)
• Department of Transportation v. Public Citizen · 541 U.S. 752 (2004)
• Industrial Union Dept., AFL-CIO v. American Petroleum Institute · 448 U.S. 607 (1980)

Official text

Read the official opinion (U.S. Reports, govinfo.gov)

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Source: the U.S. Reports via govinfo.gov; authoring Justice and vote lineup from the Supreme Court Database (Washington University). Citation count from the Free Law Project’s CourtListener bulk data. Data last verified 2026-07-03. Informational only; verify against the primary source before relying. Not a consumer report (FCRA).