The Trump administration finalized a new rule on Friday that significantly narrows the definition of “harm” under the Endangered Species Act, a move that effectively removes long-standing protections for the habitats of imperiled wildlife. For decades, federal agencies interpreted the law to include significant habitat modification as a form of harm, a standard upheld by the Supreme Court in 1995. The new regulation allows for industrial activities such as logging, mining, and oil drilling to proceed in critical habitats, provided that the animals themselves are not directly killed or injured.
This policy shift marks a major departure from 50 years of environmental precedent. The Endangered Species Act has been credited with preventing the extinction of more than 99% of the species listed under its protection, including the bald eagle. By decoupling habitat preservation from the definition of harm, the administration aims to reduce what it describes as regulatory overreach that has historically burdened private landowners and hindered economic development.
Interior Secretary Doug Burgum stated that the change returns the law to its original intent, arguing that previous interpretations had been used to obstruct lawful land use. Administration officials maintain that the update provides greater clarity and efficiency for federal agencies and private stakeholders. The rule, which was first proposed in April 2025, follows a series of broader efforts by the administration to reevaluate federal environmental statutes.
Environmental organizations and conservation groups have strongly opposed the change, warning that it could accelerate the decline of vulnerable species. Habitat destruction is widely cited by scientists as the primary driver of biodiversity loss. Critics argue that the rule ignores the biological reality that wildlife cannot survive if their essential environments—where they feed, breed, and shelter—are destroyed.
Legal challenges are expected in the coming weeks as advocacy groups prepare to contest the rule in federal court. The administration’s action remains a focal point of debate over the balance between economic growth and the preservation of natural ecosystems, with the outcome likely to influence wildlife management policies for years to come.