Washington State Leads Coalition of 21 States in Lawsuit Against Endangered Species Act Rule Changes
Washington state is co-leading a coalition of 21 states in a lawsuit challenging new rules related to the Endangered Species Act set by the Trump administration's Fish and Wildlife Services and National Marine Fisheries Service.
Seattle Tacoma, WA, September 9, 2026 — Washington state is at the forefront of a legal challenge against recent changes to the Endangered Species Act (ESA). The state is co-leading a coalition comprising 21 other states in a lawsuit aimed at overturning new regulations established by the Trump administration’s Fish and Wildlife Services and National Marine Fisheries Service.
The lawsuit disputes the legality and impact of the revised rules governing the protection of endangered and threatened species. The specific details of the challenged regulations were not provided in the trend summary. The coalition argues that these changes could weaken protections afforded to vulnerable wildlife and their habitats under the landmark ESA.
As the lead plaintiff or co-lead, Washington state’s Attorney General’s office is expected to articulate the core arguments against the federal rule changes. The names of the other 20 participating states, beyond Washington, were not specified in the available information. The lawsuit was filed against the U.S. Department of the Interior and the U.S. Department of Commerce, which oversee the Fish and Wildlife Service and the National Marine Fisheries Service, respectively.
The Endangered Species Act, originally signed into law in 1973, provides a framework for the conservation of threatened or endangered species and their ecosystems. Agencies are tasked with designating critical habitats and developing recovery plans for listed species. The trend summary does not include information regarding the specific legal grounds cited for the challenge, the timeline for the legal proceedings, or the potential outcomes of the lawsuit.
The coalition’s action signifies a significant effort by a broad group of states to assert their interest in federal environmental regulations. The trend summary does not provide details on whether any specific species or habitats are immediately impacted by the challenged rules, nor does it mention any expert opinions or statements from the involved federal agencies or the coalition regarding the litigation.
Story summarized from the original created by Annabelle.Pepin@fox.com (Annabelle Pepin) on www.fox13seattle.com, see more information here.
