Cases filed in the D.C. Circuit Courts
Cases 1 - 10 of 534
SIERRA CLUB v. REGAN
as 1:2024cv01171
Plaintiff: SIERRA CLUB
Not Yet Classified: MICHAEL S. REGAN
Cause Of Action: 42 U.S.C. § 7604 Clear Air Act (Emission Standards)
Center for Biological Diversity, et al v. Michael Regan, et al
as 24-5101
Plaintiff: Center for Biological Diversity, Defenders of Wildlife, Sierra Club and others
Defendant: Michael S. Regan, in his official capacity as Administrator for the U.S. Environmental Protection Agency, Environmental Protection Agency, Radhika Fox, in her official capacity as Assistant Administrator for the Office of Water of the U.S. Environmental Protection Agency and others
Intervenor: Tarpon Blue Silver King I, LLC, doing business as Collier Enterprises, Ltd., State of Florida and Florida Department of Environmental Protection
Appalachian Voices, et al v. FERC
as 24-1094
Petitioner: Appalachian Voices, Blue Ridge Environmental Defense League, Center for Biological Diversity and others
Respondent: Federal Energy Regulatory Commission
SIERRA CLUB v. PALKOWSKI
as 1:2024cv00741
Plaintiff: SIERRA CLUB
Defendant: BEN PALKOWSKI
Cause Of Action: 28 U.S.C. § 1332 Diversity-Breach of Fiduciary Duty
Sierra Club, et al v. SEC, et al
as 24-1067
Petitioner: Sierra Club and Sierra Club Foundation
Respondent: Securities and Exchange Commission and Gary Gensler, Chair, U.S. Securities and Exchange Commission
Utah Associated Municipal Power Systems v. EPA
as 24-1042
Petitioner: Utah Associated Municipal Power Systems
Respondent: Environmental Protection Agency
Amicus Curiae: Sierra Club, Healthy Environment Alliance of Utah, Center for Biological Diversity and others
Western Farmers Electric Cooperative v. EPA, et al
as 24-1046
Petitioner: Western Farmers Electric Cooperative
Respondent: Environmental Protection Agency and Michael S. Regan, Administrator, U.S. Environmental Protection Agency
Amicus Curiae: Sierra Club, Healthy Environment Alliance of Utah, Center for Biological Diversity and others
PacifiCorp, et al v. EPA
as 24-1041
Petitioner: PacifiCorp, Deseret Generation & Transmission Co-Operative and Utah Municipal Power Agency
Respondent: Environmental Protection Agency
Amicus Curiae: Sierra Club, Healthy Environment Alliance of Utah, Center for Biological Diversity and others
State of Oklahoma, et al v. EPA, et al
as 24-1043
Petitioner: State of Oklahoma, by and through its Attorney General, Gentner F. Drummond and Oklahoma Department of Environmental Quality
Respondent: Environmental Protection Agency and Michael S. Regan, Administrator, U.S. EPA
Amicus Curiae: Sierra Club, Healthy Environment Alliance of Utah, Center for Biological Diversity and others
Oklahoma Gas and Electric Company v. EPA, et al
as 24-1044
Petitioner: Oklahoma Gas and Electric Company
Respondent: Environmental Protection Agency and Michael S. Regan, Administrator, U.S. Environmental Protection Agency
Amicus Curiae: Sierra Club, Healthy Environment Alliance of Utah, Center for Biological Diversity and others

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