On November 19, the U.S. Fish and Wildlife Service announced its intention to revise Endangered Species Act policies. The proposed rules, two of which were issued in coordination with the Department of Commerce’s National Oceanic and Atmospheric Administration’s National Marine Fisheries Service, would revise Biden administration regulations finalized in 2024. The proposed rules revert to the 2019 and 2020 regulatory text governing listing, delisting, and critical habitat determinations. These actions implement Executive Orders 14154, “Unleashing American Energy,” and 14219, “Department of Government Efficiency,” along with (Interior) Secretary’s Order 3418, which directs the “removal of impediments imposed on the development and use of our Nation's abundant energy and natural resources by the Biden administration’s burdensome regulations.”