Trump Administration Redefines Endangered Species Act to Allow Accidental Killings

The Donald Trump administration has implemented a series of regulatory changes and directives that significantly narrow the scope of the Endangered Species Act (ESA). A central component of this overhaul is a September 14 directive from U.S. Fish and Wildlife Service Director Brian Nesvik, which stipulates that the killing of imperiled plants or animals is only unlawful if they were deliberately targeted. This reinterpretation of the legal concept of take effectively decriminalizes accidental or collateral harm caused by economic activities, such as logging, dam construction, or commercial fishing.

Parallel to this directive, the administration repealed a 50-year-old rule that defined illegal harm to include habitat degradation. This move removes widespread protections for habitats on private lands, facilitating development regardless of whether endangered species rely on those areas for survival. The United States Department of the Interior defended these actions as a way to end years of federal overreach and return the law to its original intent, citing a 2024 Supreme Court ruling on regulatory authority.

Further planned regulations include rescinding the blanket 4(d) rule that automatically extends protections to newly listed threatened species and curbing the U.S. Fish and Wildlife Service's discretion in designating critical habitats. Interior Secretary Doug Burgum argued the ESA had been weaponized to block economic projects.

These changes have triggered immediate legal and political opposition. A coalition of 21 attorneys general, including the Attorney General of Washington, and various environmental groups have filed lawsuits to block the rules. Conservationists, such as the Center for Biological Diversity, warn the changes create a loophole that prioritizes industry over nature and could accelerate extinctions.