Petitions Challenging EPA MATS Rule Repeal Consolidated In D.C. Appeals Court

( April 3, 2026, 1:11 PM EDT) -- WASHINGTON, D.C. — Two petitions filed in the District of Columbia Circuit U.S. Court of Appeals by nonprofit environmental advocacy groups, several states and other parties challenging the repeal of portions of the U.S. Environmental Protection Agency’s 2024 Mercury and Air Toxics Standards (MATS) Rule were consolidated, while a federal District Court lawsuit filed by some of the same nonprofits remains in abeyance....