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
EPA filed a status report on October 15 in the slow-moving mercury and air toxics (MATS) litigation, which is now Murray Energy Corp. v. EPA, No. 16-1127 (D.C. Cir., filed April 26, 2016). The case is a challenge to EPA...more
In December 2011, the EPA announced the Mercury and Air Toxics Standards under Section 112 of the Clean Air Act (CAA), commonly referred to as the MATS rule. The MATS rule governs the emission of mercury from electric power...more