The Trump administration faces litigation over its reinterpretation of "harm" under the Endangered Species Act (ESA). The administration announced plans to narrow the definition of habitat destruction that triggers federal protection for threatened species.
Under the ESA, federal agencies must ensure that actions do not jeopardize threatened or endangered species or destroy critical habitat. The administration's revised definition restricts what constitutes "harm" to a species, potentially excluding habitat degradation that does not directly kill or injure individual animals. This narrower reading contrasts with the longstanding regulatory interpretation that treated habitat destruction as actionable harm.
The lawsuit challenges this regulatory redefinition on multiple grounds. Plaintiffs argue the administration violated the Administrative Procedure Act by failing to follow proper rulemaking procedures and by ignoring scientific evidence that habitat loss directly threatens species survival. Environmental groups contend the revised definition conflicts with the statute's plain language and undermines decades of established protection mechanisms.
The practical consequences extend across industries and conservation efforts. Developers, timber companies, and other industries welcome the narrower definition as it streamlines project approvals and reduces mitigation requirements. Conservation organizations warn the change will accelerate extinctions and weaken protections for vulnerable ecosystems. Federal land managers and Fish and Wildlife Service officials must now apply the contested definition while litigation proceeds.
The ESA has remained largely unchanged since 1973, though courts have periodically refined its application. This administration-initiated redefinition marks a deliberate policy reversal from decades of regulatory practice. The outcome will determine whether habitat protection remains a core component of species recovery or becomes subordinate to direct mortality concerns.
Judges must resolve whether the administration possessed statutory authority to reinterpret "harm" unilaterally and whether the revision comports with notice-and-comment requirements. The decision affects ongoing consultations between federal agencies and private parties seeking project approval under ESA Section 7.