News & Analysis as of

Hazardous Substances MATS

Holland & Knight LLP

President Trump Invokes National Security to Delay Mercury and Air Toxics Standards

Holland & Knight LLP on

President Donald Trump's April 8, 2025, proclamation extends the compliance deadline for the EPA's Mercury and Air Toxics Standards (MATS) by two years, from July 8, 2027 to July 8, 2029, asserting national security concerns...more

Williams Mullen

Political Ping Pong? What’s Going On With the Utility Sector’s Clean Air Act Mercury and Air Toxics Standards?

Williams Mullen on

EPA recently issued a proposed rule (“the Proposed Rule”) regarding the Mercury and Air Toxics Standards (MATS), which regulate hazardous air pollutant (HAP) emissions from coal and gas-fired electric generating units (EGUs)...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

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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