September 25, 2026 CFSI Staff

21 States Challenge Federal Endangered Species Act Changes

California co-leads a legal challenge over ESA rollbacks that could impact marine habitat, permitting, and West Coast fisheries.

Key Takeaways

  • The Lawsuit: A coalition of 21 state attorneys general – co-led by California AG Rob Bonta alongside Washington, Massachusetts, and Maryland – filed two lawsuits in the U.S. District Court for the Northern District of California against the federal government.
  • Agencies Targeted: The legal actions challenge recent regulatory rollbacks implemented by the U.S. Fish and Wildlife Service (FWS) and NOAA Fisheries (NMFS).
  • Industry Relevance: Because NOAA Fisheries administers the Endangered Species Act (ESA) for marine species and anadromous stocks (such as salmon and steelhead), changes to habitat definitions and species protections directly influence federal fishery management, ocean permitting, and seasonal gear restrictions along the Pacific Coast.

What’s at Stake in the Legal Challenge

The multi-state lawsuit argues that federal agencies violated the Endangered Species Act, the Administrative Procedure Act, and the National Environmental Policy Act by weakening core wildlife safeguards. The states are asking the federal court to vacate three major rule changes:

  1. Redefining “Harm”: The federal revisions rescinded the longstanding definition of “harm,” which previously included significant habitat degradation or modification that injures wildlife. States argue this narrowing makes it easier to damage critical ecosystems without triggering ESA protections.
  2. Critical Habitat Economic Exclusions: A new “Habitat Exclusion Rule” requires agencies to weigh economic factors and national security before designating critical habitats. Under this rule, areas can be excluded from protection if economic considerations are determined to outweigh conservation benefits.
  3. Repeal of “4(d)” Blanket Protections: The federal rules eliminated automatic, uniform protections for newly listed “threatened” species, replacing them with a requirement for custom, species-specific regulations.

For California’s seafood producers, processors, and commercial fleets, the ESA plays a central role in day-to-day ocean operations. Marine species protection measures directly dictate harvest limits, spatial closures, gear modifications, and environmental impact assessments across coastal waters.

While supporters of the federal changes contend the rollbacks reduce regulatory burdens and streamline land and water use, challenging states counter that eroding habitat protections jeopardizes imperiled fish stocks, including West Coast salmon and groundfish populations, that form the backbone of local fishing economies.

As these cases proceed through the U.S. District Court in Northern California, CFSI will continue to track developments and provide updates on how potential rulings could affect federal permitting, fishery management plans, and seafood supply chains.

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