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. This is the fourth in a series of blog posts that will briefly describe each proposed rule. The notice states ...

In Friends of the River v. National Marine Fisheries Service, the U.S. District Court for the Eastern District of California rejected challenges to Army Corps of Engineers and National Marine Fisheries Service decisions regarding the impact of dams, hydropower facilities, and water diversions along the Yuba River on listed fish species, the spring-run Chinook salmon (Oncorhynchus tshawytscha), the Central Valley steelhead (Oncorhynchus mykiss), and the North American green sturgeon (Acipenser medirostris).  In so doing, the court addressed a number of issues that may arise ...