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Vinson & Elkins LLP

EPA Proposes to Repeal Biden-era Regulations Governing Air Toxic Emissions from Coal- and Oil-Fired Power Plants

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On June 17, 2025, the U.S. Environmental Protection Agency (“EPA”) published a proposed rule to repeal the amendments to the Mercury and Air Toxics Standards (“MATS”) adopted by the Biden administration in 2024. These...more

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

Regional Haze/Utah: U.S. Environmental Protection Agency Announces Approval of Revisions to State Implementation Plan

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The United States Environmental Protection Agency (“EPA”) announced in the January 22, 2020 Federal Register that it was proposing to approve revisions to the State of Utah’s plan for addressing regional haze. The proposed...more

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

Regional Haze: Arkansas Department of Environmental Quality Proposed State Implementation Plan Revision

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The Arkansas Department of Environmental Quality (“ADEQ”) announced on October 31st proposed revisions to the State’s Regional Haze State Implementation Plan (“SIP”)....more

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