On June 11, 2025, the U.S. Environmental Protection Agency ("EPA") announced a proposed rule to repeal key amendments to the 2024 Mercury and Air Toxics Standards ("MATS") for coal- and oil-fired electric utility steam...more
The Environmental Protection Agency ("EPA") has announced a new proposed rule that would strengthen the National Emission Standards for Hazardous Air Pollutants ("NESHAP") for Coal- and Oil- Fired Electric Utility Steam...more
Earlier this week, Greenwire (subscription required) had an interesting story about the role that EPA’s estimate of the cost to comply with the Mercury and Air Toxics Standards rule played in the politics and judicial review...more
On December 27, EPA proposed to revise the cost finding associated with the Mercury and Air Toxics Standards (MATS) along with the risk and technology review required by the Clean Air Act. (EPA Announcement)....more
CONGRESS FINDS THE FORMULA TO REFORM CHEMICAL REGULATION - The Toxic Substance Control Act (TSCA) is the primary federal law by which the manufacture, import and use of chemical substances are regulated in the United...more
Legal challenges filed almost immediately after President Obama announced the Clean Power Rule may be premature. That is what attorneys for EPA told the U.S. Court of Appeals for the District of Columbia Circuit recently in...more
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
While the Court’s decision marks a symbolic defeat for EPA, it may not significantly alter power plant operators’ compliance efforts. In a much anticipated decision delivered on the last day of the term, the Supreme...more