SIERRA CLUB v. E.P.A.

Attorney(s) appearing for the Case

Seth L. Johnson argued the cause and filed the briefs for petitioners.

David O'Brien Frederick and Amy Catherine Dinn , Houston, TX, were on the brief for amicus curiae Caring for Pasadena Communities in support of petitioners.

Perry M. Rosen , Senior Attorney, United States Department of Justice, argued the cause for the respondents. With him on the brief were Jeffrey Bossert Clark , Assistant Attorney General, and Jonathan D. Brightbill , Principal Deputy Assistant Attorney General.

Ken Paxton , Attorney General, Office of the Attorney General for the State of Texas, Jeffrey C. Mateer , First Assistant Attorney General, Priscilla M. Hubenak , Chief, Environmental Protection Division, and Linda B. Secord , Assistant Attorney General, were on the brief for intervenor-respondents the State of Texas and the Texas Commission on Environmental Quality.

Bayron T. Gilchrist , Washington, DC, Barbara Baird , and Megan E. Lorenz Angarita were on the brief for amicus curiae South Coast Air Quality Management District in support of respondents.

Aaron M. Flynn , Lucinda Minton Langworthy , Washington, DC, Daryl L. Joseffer , Michael B. Schon , and Peter Tolsdorf were on the brief for amicus curiae American Chemistry Council, et al. in support of respondents.

Before: Tatel and Katsas, Circuit Judges, and Edwards, Senior Circuit Judge.