Petitioners

Environmental Defense FundCenter for Biological DiversityChesapeake Bay Foundation, Inc.Communities for a Better EnvironmentConservation Law FoundationConsumer Federation of AmericaEnvironment AmericaEnvironmental Law and Policy CenterNatural Resources Defense Council, Inc.Public Citizen, Inc.Sierra Club + see more - see less

Respondents

James C. Owens, in his official capacity as Acting Administrator of the National Highway Traffic Safety AdministrationPete Buttigieg, in his official capacity as Secretary of the United States Department of TransportationElaine L. Chao, in her official capacity as Secretary of the United States Department of TransportationNational Highway Traffic Safety Administration

Amicus Curiae

Coalition to Protect America's National ParksNational Parks Conservation AssociationNew Mexico Wilderness AllianceAmerican Thoracic SocietyAmerican Lung AssociationAmerican Medical AssociationMedical Society of the District of ColumbiaNational League of CitiesU.S. Conference of MayorsCity of AnnapolisCounty of BoulderCity of DurhamMayor of the City of FayettevilleMayor of the Borough of Glen RockHarris County, TexasCity of HoustonCity of Las CrucesCity of MinneapolisMayor of the City of PhoenixCity of PittsburghCity of ProvidenceCity of Saint PaulMayor of Salt Lake CityCity of Santa FeAndrew DesslerPhilip DuffyMichael MacCrackenJames McWilliamsNoelle Eckley SelinDrew ShindellJames StockKevin TrenberthGernot Wagner + see more - see less

Other Parties

Bay Area Air Quality Management District, Intervenor for Respondent City and County of Denver, Intervenor for Respondent Commonwealth of Massachusetts, Intervenor for Respondent Commonwealth of Pennsylvania, Intervenor for Respondent Commonwealth of Virginia, Intervenor for Respondent District of Columbia, Intervenor for Respondent Sacramento Metropolitan Air Quality Management District, Intervenor for Respondent South Coast Air Quality Management District, Intervenor for Respondent State of California, Intervenor for Respondent State of Colorado, Intervenor for Respondent State of Connecticut, Intervenor for Respondent State of Hawaii, Intervenor for Respondent State of Illinois, Intervenor for Respondent State of Maine, Intervenor for Respondent State of Maryland, Intervenor for Respondent State of Minnesota, Intervenor for Respondent State of Nevada, Intervenor for Respondent State of New Jersey, Intervenor for Respondent State of New York, Intervenor for Respondent State of North Carolina, Intervenor for Respondent State of Oregon, Intervenor for Respondent State of Rhode Island, Intervenor for Respondent State of Vermont, Intervenor for Respondent State of Washington, Intervenor for Respondent State of Wisconsin, Intervenor for Respondent Professor Michael Greenstone, Amicus Curiae for Petitioner Consumer Reports, Amicus Curiae for Petitioner Institute for Policy Integrity at New York University School of Law, Amicus Curiae for Petitioner Senator Tom Carper, Chairman of the Senate Environment and Public Works Committee, Amicus Curiae for Petitioner Benjamin Leard, Amicus Curiae for Petitioner Represenative Frank Pallone, Jr., Chairman of the House Committee on Energy and Commerce, Amicus Curiae for Petitioner Joshua Linn, Amicus Curiae for Petitioner Kenneth A. Small, Amicus Curiae for Petitioner James Stock, Amicus Curiae for Petitioner + see more - see less