Legal Opinion

Sierra Club v. United States Environmental Protection Agency

District Court, District of Columbia

Decided July 25, 2025No. Civil Action No. 2023-1744Published

1Opinion of the Court

UNITED STATES DISTRICT COURT FOR THE DISTRICT OF COLUMBIA SIERRA CLUB, et al., Plaintiffs, v. Civil Action No. 23-1744 (JDB) UNITED STATES ENVIRONMENTAL PROTECTION AGENCY, et al., Defendants. MEMORANDUM OPINION The Sierra Club, the National Parks Conservation Association, and the Environmental Integrity Project (collectively “Plaintiffs”) brought this action to compel the United States Environmental Protection Agency (“EPA”) and its Administrator, Lee Zeldin 1 (collectively “Defendants”), to take certain required actions under the Clean Air Act (“CAA”),

42 U.S.C. § 7401

et seq. Fortunately, the…

2Cases cited25 opinions

  1. Hensley v. EckerhartSupreme Court of the United States · 1983
  2. Fox v. ViceSupreme Court of the United States · 2011
  3. Perdue v. Kenny A. ex rel. WinnSupreme Court of the United States · 2010
  4. Laffey v. Northwest Airlines, Inc.Court of Appeals for the D.C. Circuit · 1984
  5. National Ass'n of Concerned Veterans v. Secretary of DefenseCourt of Appeals for the D.C. Circuit · 1982

20 more not listed; retrieve them via the Exa API.

Showing a preview — retrieve the full document via the Exa API.

Powered by the Exa API