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Air Quality Standards Environmental Protection Agency (EPA) Arbitrary and Capricious

Cozen O'Connor

Ohio and Kansas AGs Seek Stay of EPA Air Quality Rule by the Supreme Court

Cozen O'Connor on

Ohio AG Dave Yost and Kansas AG Kris Kobach have completed briefing on their emergency application with the U.S. Supreme Court to stay the EPA’s “Reconsideration of the National Ambient Air Quality Standards for Particulate...more

Nossaman LLP

Supreme Court Clarifies Requirement for Agencies to Respond to Public Comments on Proposed Rulemakings

Nossaman LLP on

The week of June 23, 2024, in Ohio v. Environmental Protection Agency, the U.S. Supreme Court clarified in a 5-4 decision that if a federal agency fails to provide a reasoned response to comments raised during the rulemaking...more

Cozen O'Connor

Republican AGs Seek Vacate of EPA Air Quality Rule

Cozen O'Connor on

A coalition of 24 Republican AGs, co-led by West Virginia AG Patrick Morrisey and Kentucky AG Russell Coleman, has filed a petition for judicial review with the U.S. Court of Appeals for the D.C. Circuit challenging a new air...more

Mitchell, Williams, Selig, Gates & Woodyard,...

Exceptional Events/Clean Air Act: Federal Appellate Court Addresses Challenge to Approval of Colorado SIP

The Tenth Circuit Court of Appeals (“10th Circuit”) addressed in a July 24th opinion a challenge to the United States Environmental Protection Agency (“EPA”)approval of a Colorado State Implementation Plan (“SIP”). See...more

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