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Energy Sector MATS Supreme Court of the United States

Snell & Wilmer

U.S. Environmental Protection Agency Proposing Repeal of Energy-Related Regulations Impacting Energy Development

Snell & Wilmer on

On June 11, 2025, Administrator Lee Zeldin announced that in following up on the EPA’s “31 historic actions” announcement made back in March, the EPA is proposing two rules to repeal (1) greenhouse gas (GHG) emissions...more

Lewitt Hackman

Supreme Court Tells EPA Cost Does Matter

Lewitt Hackman on

The Environmental Protection Agency's Mercury and Air Toxics Standards (MATS) placed national limits on mercury and other toxic emissions from power plants. The agency projected MATS to prevent 11,000 premature deaths, 4,700...more

Pillsbury Winthrop Shaw Pittman LLP

The U.S. Supreme Court Holds EPA Must Consider Costs in Deciding to Regulate Power Plants

The U.S. Supreme Court’s June 29th decision in Michigan v. EPA, taken together with another significant CAA opinion from last term, Utility Air Regulatory Group v. EPA, demonstrates the Court’s proclivity for subjecting...more

Burr & Forman

Supreme Court Halts Implementation of EPA Rule on Mercury Emissions from Electric Power Plants: The Practical Effects Are...

Burr & Forman on

On Monday, the U.S. Supreme Court halted further implementation of a U.S. EPA’s regulation limiting mercury and other hazardous air toxic emissions from coal- and oil-fired electric power plants. In a 5-4 decision, the...more

Saul Ewing LLP

Because EPA Failed to Consider Costs to Industry, Supreme Court Overturns Power Plant Regulation

Saul Ewing LLP on

The Mercury and Air Toxics Standards rule ("MATS") for electric utility steam generating units has been reversed and remanded with the Supreme Court’s much-anticipated decision in Michigan v. EPA on June 29, 2015. Writing for...more

Stoel Rives LLP

U.S. Supreme Court Hears Oral Arguments on EPA’s Mercury and Air Toxics Standard

Stoel Rives LLP on

Wednesday the U.S. Supreme Court heard oral argument in Michigan v. EPA, a Clean Air Act case involving hazardous air pollutant regulations, with implications for fossil fuel-fired power plant owners and operators in...more

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