Endangered Species Law & Policy

On November 21, 2025, the U.S. Fish & Wildlife Service and National Marine Fisheries Service (collectively, the Services) published several proposed rules to revise their regulations implementing certain provisions of the Endangered Species Act (ESA). To a substantial extent, the Services are proposing to return to the regulations put in place by the first Trump administration in its prior rulemakings and thereby undo the changes put in place by the Biden administration in its prior rulemakings. This is the second in a series of blog posts that will briefly describe each proposed ...

On May 20, 2024, the U.S. Fish and Wildlife Service (Service) published a final rule listing the dunes sagebrush lizard (Scleroperus arenicolus) (DSL) as endangered (Final Rule) under the Endangered Species Act (ESA). In the Final Rule, the Service identifies habitat loss and fragmentation of dunelands associated with oil and natural gas production and frac sand mining as the primary threat to the species, with climate change causing additional impacts.

The Service received more than 18,000 comments on its proposed rule to list the DSL, with many urging the Service not to list the ...

On August 25, 2022, the U.S. Fish and Wildlife Service (Service) filed a stipulated settlement agreement (Agreement) in a case challenging the agency’s failure to timely make a 12-month finding on a petition to list the dunes sagebrush lizard (Scleroperus arenicolus) (Petition). Under the Agreement, the Service will submit a 12-month finding on the Petition to the Federal Register no later than June 29, 2023. The 12-month finding will determine whether listing the species is warranted (and will simultaneously issue a proposed rule to list the species), whether listing the ...

The United States Fish and Wildlife Service ("Service") has recently received an application for an incidental take permit under Endangered Species Act section 10(a)(l)(A) to authorize take of the West Coast distinct population segment ("DPS") of fisher (Pekania pennanti) ("fisher") should it or its subpopulations become federally listed. As we have previously reported, the Service recently listed the Southern Sierra Nevada DPS of fisher as an endangered species.

The permit application, submitted by Oregon-based timberland investment company Chinook Forest Partners ...

On October 16, 2015, the California Department of Fish and Wildlife (CDFW) and the Bureau of Land Management (BLM) announced the signing of a conservation agreement intended to provide greater protections and more flexibility in the management of impacts to sensitive species and their habitats.  The conservation agreement, called the Durability Agreement, will allow CDFW to use BLM lands for various conservation actions, and occasionally for project-level mitigation to meet California state standards.  The Durability Agreement, developed during coordination between CDFW ...