Entergy Corporation v. Riverkeeper, Inc., et al.

Decided April 1, 2009. Antonin Scalia delivered the opinion of the Court.

Docket 07-588 · 556 U.S. 208 (2009) · Cited 182 times

Holding

The EPA permissibly relied on cost-benefit analysis in setting the national performance standards and in providing for cost-benefit variances from those standards as part of the Phase II regulations.

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 5–4.

“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.

• Chevron U. S. A. Inc. v. Natural Resources Defense Council, Inc. · 467 U.S. 837 (1984)
• Whitman v. American Trucking Assns., Inc. · 531 U.S. 457 (2001)
• Environmental Protection Agency v. National Crushed Stone Ass'n · 449 U.S. 64 (1980)
• Barnhart v. Walton · 535 U.S. 212 (2002)
• American Textile Manufacturers Institute, Inc. v. Donovan · 452 U.S. 490 (1981)
• Motor Vehicle Mfrs. Assn. of United States, Inc. v. State Farm Mut. Automobile Ins. Co. · 463 U.S. 29 (1983)
• Russello v. United States · 464 U.S. 16 (1983)
• National Cable & Telecommunications Assn. v. Brand X Internet Services · 545 U.S. 967 (2005)
• Thomas Jefferson University v. Shalala · 512 U.S. 504 (1994)
• United States v. Detroit Timber & Lumber Co. · 200 U.S. 321 (1906)
• Alaska Department of Environmental Conservation v. Environmental Protection Agency · 540 U.S. 461 (2004)
• Allison Engine Co. v. United States Ex Rel. Sanders · 553 U.S. 662 (2008)

Cited by

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

• Michigan v. Envtl. Prot. Agency · 576 U.S. 743 (2015)
• Department of Transportation v. Association of American Railroads · 575 U.S. 43 (2015)
• Pereira v. Sessions · 585 U.S. 198 (2018)
• United States v. Home Concrete & Supply, LLC · 566 U.S. 478 (2012)
• Guam v. United States · 593 U.S. 310 (2021)

Official text

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

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Antonin Scalia’s profile · All Supreme Court opinions · The Supreme Court

Source: Supreme Court of the United States, slip opinions (2009). 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).