Committee for a Better Arvin v. United States Environmental Protection Agency

FOR PUBLICATION UNITED STATES COURT OF APPEALS FOR THE NINTH CIRCUIT No. 24-7270 COMMITTEE FOR A BETTER ARVIN, a nonprofit corporation; Agency No. MEDICAL ADVOCATES FOR EPA–R09–OAR– HEALTHY AIR, a nonprofit 2023–0477 corporation; NATIONAL PARKS CONSERVATION ASSOCIATION, Environmental a nonprofit corporation; SIERRA Protection Agency CLUB, a nonprofit corporation, OPINION Petitioners, v. UNITED STATES ENVIRONMENTAL PROTECTION AGENCY; MICHAEL REGAN, in his official capacity as Administrator of the U.S. Environmental Protection Agency; MARTHA GUZMAN ACEVES, Regional Administrator of Region 9 of…