Cases filed in the Tenth Circuit Courts
Cases 1 - 10 of 127
State of Utah v. United States Environmental Protection Agency et al
as 2:2023cv00827
Plaintiff: State of Utah
Defendant: United States Environmental Protection Agency and Michael S. Regan
Cause Of Action: 42 U.S.C. § 7604 Clear Air Act (Emission Standards)
PacifiCorp v. United States Environmental Protection Agency et al
as 2:2023cv00200
Defendant: United States Environmental Protection Agency Administrator, United States Environmental Protection Agency, Michael S. Regan and others
Plaintiff: PacifiCorp
Cause Of Action: 42 U.S.C. § 7604 Clear Air Act (Emission Standards)
Center for Biological Diversity v. EPA
as 23-9603
Petitioner: CENTER FOR BIOLOGICAL DIVERSITY
Respondent: UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
State of Wyoming v. United States Environmental Protection Agency et al
as 2:2023cv00193
Respondent: United States Environmental Protection Agency Administrator, United States Environmental Protection Agency and Michael Regan
Petitioner: State of Wyoming
Cause Of Action: 42 U.S.C. § 6901 Resource Conservation & Recovery Act
PacifiCorp v. United States Environmental Protection Agency et al
as 2:2023cv00771
Plaintiff: PacifiCorp
Defendant: United States Environmental Protection Agency and Michael S. Regan
Cause Of Action: 42 U.S.C. § 7604 Clear Air Act (Emission Standards)
State of Wyoming v. United States Environmental Protection Agency et al
as 1:2023cv00198
Defendant: United States Environmental Protection Agency Administrator, United States Environmental Protection Agency and Michael Regan
Plaintiff: State of Wyoming
Cause Of Action: 42 U.S.C. § 7604 Clear Air Act (Emission Standards)
Wyoming Refining Company v. EPA
as 23-9582
Petitioner: WYOMING REFINING COMPANY
Respondent: UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
Energy Transfer LP v. EPA, et al
as 23-9569
Petitioner: ENERGY TRANSFER LP
Respondent / Appellee: UNITED STATES ENVIRONMENTAL PROTECTION AGENCY and MICHAEL S. REGAN, Administrator
State of Colorado v. EPA, et al
as 23-9566
Petitioner: STATE OF COLORADO
Respondent: UNITED STATES ENVIRONMENTAL PROTECTION AGENCY and MICHAEL S. REGAN, Administrator, Environmental Protection Agency
Center for Biological Diversity, et al v. EPA, et al
as 23-9565
Petitioner: CENTER FOR BIOLOGICAL DIVERSITY and 350 COLORADO
Respondent: UNITED STATES ENVIRONMENTAL PROTECTION AGENCY and MICHAEL S. REGAN, Administrator, United States Environmental Protection Agency

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