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The Climate Litigation Database

Center for Biological Diversity v. U.S. Fish & Wildlife Service

Geography
🇺🇸 United States of America → District of Columbia
Year
2026
Document Type
Litigation
Part of

About this case

Filing year
2026
Status
Complaint filed.
Geography
🇺🇸 United States of America → District of Columbia
Docket number
1:26-cv-00116
Court/admin entity
United States → United States District Court for the District of Columbia (D.D.C.)United States → United States Federal Courts
Case category
Federal Statutory Claims (US) → Endangered Species Act and Other Wildlife Protection Statutes (US)
Principal law
United States → Endangered Species Act (ESA)
At issue
Lawsuit to compel the U.S. Fish and Wildlife Service to finalize critical habitat designation for the Southern Sierra Nevada distinct population segment of the fisher.
Topics
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Documents

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Filing Date
Document
Type
Topics
01/15/2026
Complaint filed.
Center for Biological Diversity filed a lawsuit in the federal district court for the District of Columbia asking the court to require the U.S. Fish and Wildlife Service to finalize critical habitat designation for the Southern Sierra Nevada distinct population segment of the fisher, a medium-sized furry carnivore in the same family as weasels, mink, martens, and otters. The complaint alleged that habitat destruction and climate change had contributed to range-wide decline of the species. FWS listed the Southern Sierra Nevada population as endangered in May 2020 but failed to designate critical habitat within the timeline required by the Endangered Species Act. CBD asked the court to direct FWS to finalize critical habitat designation by a date certain.
Complaint

Summary

Lawsuit to compel the U.S. Fish and Wildlife Service to finalize critical habitat designation for the Southern Sierra Nevada distinct population segment of the fisher.

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Group
Topics
Policy instrument
Risk
Economic sector
Adaptation/resilience