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Clean Air Act Affirmative Defenses Appeals

Snell & Wilmer

Title V Emergency Affirmative Defense Provision Reinstated by DC Circuit Court

Snell & Wilmer on

The DC Circuit Court of Appeals decided on September 5, 2025, that the U.S. Environmental Protection Agency (EPA) erred in implementing its 2023 Final Rule on “Removal of Title V Emergency Affirmative Defense Provisions From...more

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

Removal of Affirmative Defense Provisions/NESHAP: U.S. Environmental Protection Agency Proposal Addressing Oil and Natural Gas...

The United States Environmental Protection Agency (“EPA”) published in the December 1st Federal Register proposed amendments to the Clean Air Act National Emission Standards for Hazardous Air Pollutants for the oil and gas...more

ArentFox Schiff

EPA Removes Emergency Affirmative Defense for Title V Air Permits

ArentFox Schiff on

On July 21, 2023, the US Environmental Protection Agency (EPA) issued a long-awaited final rule that will make it difficult for sources to continue to rely on an “emergency” to avoid liability for permit violations under...more

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