Clean Air Act

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In a 6-2 decision authored by Justice Thomas, the Supreme Court held in consolidated cases Oklahoma v. EPA and PacifiCorp v. EPA that the Environmental Protection Agency (EPA)’s disapprovals of 21 individual state implementation plans (SIPs) under the Clean Air Act (CAA) are “locally or regionally applicable” actions, and, as such, must be challenged in their respective regional circuit courts—even when the EPA publishes them in a single, consolidated Federal Register notice.

Continue Reading Decision Alert: Supreme Court Clarifies Venue for Environmental Challenges

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

The Supreme Court recently heard oral argument in Diamond Alternative Energy, LLC v. Environmental Protection Agency (No. 24-7), a case examining whether economic harm stemming from market forces influenced by environmental regulation can support Article III standing. At issue is California’s authority to enforce its own emission standards, through a waiver granted by the U.S. Environmental Protection Agency (EPA) under Section 209 of the Clean Air Act (CAA).

Continue Reading Supreme Court Considers Standing to Challenge Clean Air Act Waiver Based on Market Impact

In Environmental Protection Agency v. Calumet Shreveport Refining, the Supreme Court is weighing whether legal challenges to the Environmental Protection Agency’s (EPA) denial of Renewable Fuel Standard (RFS) exemptions for small oil refineries must be filed exclusively in the D.C. Circuit under the Clean Air Act (CAA).

Continue Reading Supreme Court Considers Venue and Nationwide Applicability of EPA Actions in Renewable Fuel Case

Section 209 of the Clean Air Act generally preempts states from setting their own emission standards for motor vehicles. However, under Section 209(b), the EPA may grant California a waiver to establish its own standards if California demonstrates a need to address “compelling and extraordinary conditions.”

Continue Reading Grant Alert: Supreme Court Set To Address Article III Standing Based on Effect of Regulation on Third Parties