In EPA v. Calumet Shreveport Refin., L.L.C., the Supreme Court ruled that all challenges to Environmental Protection Agency (EPA) denials of small refinery exemption (SRE) petitions under the Clean Air Act’s Renewable Fuel Standard (RFS) program must be brought exclusively in the D.C. Circuit. Writing for the Court, Justice Thomas—joined by seven other Justices—held that while the denials may affect individual refineries, they rest on determinations with “nationwide scope or effect,” triggering D.C. Circuit jurisdiction under the Act.Continue Reading Decision Alert: The D.C. Circuit Has Exclusive Jurisdiction Over Small Refinery Exemption Challenges Under the Clean Air Act