EPA v. Eme Homer City Generation

572 U.S. 489 · Decided April 29, 2014 · Supreme Court of the United States

At a glance

EPA v. Eme Homer City Generation was decided on April 29, 2014 by a vote of 6–2. The Court reversed the lower court's decision and remanded the case. Justice Ruth Bader Ginsburg wrote the opinion of the Court. SCDB classifies its main issue as “Natural resources and environmental protection” in the Economic Activity area.

Read the opinion

• CourtListener (Free Law Project) — opinion text

Case details

How the Justices voted

Did not participate: Samuel A. Alito Jr..

Full case caption

EPA v. Eme Homer City Generation

SCDB identifiers: case 2013-039, docket 2013-039-01.

Related decisions

Other cases on “Natural resources and environmental protection”

• Util. Air Regulatory Group v. EPA
  573 U.S. 302Decided June 23, 20147–2Antonin Scalia
• Doug Decker v. Northwest Environmental Defense Center;
  568 U.S. 597Decided March 20, 20137–1Anthony M. Kennedy
• Michigan v. Environmental Protection Agency
  576 U.S. 743Decided June 29, 20155–4Antonin Scalia
• Los Angeles County Flood Control District Petitioner v. Natural Resources Defense Council, Inc.
  568 U.S. 78Decided January 8, 20139–0Ruth Bader Ginsburg
• Sturgeon v. Frost
  577 U.S. 424Decided March 22, 20168–0John G. Roberts Jr.
• United States Army Corp of Engineers v. Hawkes Co., Inc.
  578 U.S. 590Decided May 31, 20168–0John G. Roberts Jr.

See all

Cases on the same legal provision: Clean Air Act

• West Virginia v. Environmental Protection Agency
  142 S. Ct. 2587Decided June 30, 20226–3John G. Roberts Jr.
• Engine Manufacturers Association and Western States Petroleum Association v. South Coast Air Quality Management District
  541 U.S. 246Decided April 28, 20048–1Antonin Scalia
• Oklahoma v. Environmental Protection Agency
  145 S. Ct. 1720Decided June 18, 20258–0Clarence Thomas
• Environmental Protection Agency v. Calumet Shreveport Refining, LLC
  145 S. Ct. 1735Decided June 18, 20257–2Clarence Thomas
• Pennsylvania v. Delaware Valley Citizens' Council for Clean Air
  483 U.S. 711Decided June 26, 19875–4Byron R. White
• Pennsylvania v. Delaware Valley Citizens' Council for Clean Air
  478 U.S. 546Decided July 2, 19866–3Byron R. White

Same Term, same area (Economic Activity)

• Heimeshoff v. Hartford Life & Accident Ins. Co.
  571 U.S. 99Decided December 16, 20139–0Clarence Thomas
• Medtronic, Inc. v. Mirowski Family Ventures, LLC
  571 U.S. 191Decided January 22, 20149–0Stephen G. Breyer
• Chadbourne & Parke LLP v. Troice
  571 U.S. 377Decided February 26, 20147–2Stephen G. Breyer
• Law v. Siegel
  571 U.S. 415Decided March 4, 20149–0Antonin Scalia
• Bg Group PLC v. Republic of Argentina
  572 U.S. 25Decided March 5, 20147–2Stephen G. Breyer
• Paroline v. United States
  572 U.S. 434Decided April 23, 20145–4Anthony M. Kennedy

See all

Source: Supreme Court Database, 2026 Release 01 (data file dated September 8, 2026). Imported into CaseTrail November 5, 2026. Coverage: decisions from the 1946 through 2025 Terms. Methodology · Report an error