Endangered Species Law & Policy

On April 17, 2025, the U.S. Fish & Wildlife Service (USFWS) and National Marine Fisheries Service (NMFS) (collectively, Services) published a notice in the Federal Register proposing to rescind the Services’ respective definitions of “harm” under the Endangered Species Act (ESA) (Proposed Rule). The notice indicates the Services will accept comments on the Proposed Rule until May 18.

Section 9 of the ESA prohibits “take” of endangered species and the Services have extended the “take” prohibition, by regulation, to many species listed as threatened under the ...

On January 20, 2025, the U.S. Fish & Wildlife Service (Service) will publish a positive 90-day finding on a 2016 petition (Petition) to delist the golden-cheeked warbler (Setophaga chrysoparia) (GCWA). The decision comes on the heels of the agency’s recent recommendation to downlist the GCWA from endangered to threatened. Pursuant to Endangered Species Act section 4 and relevant implementing regulations, the Service will receive information from the public to inform a more detailed status review, and will publish a 12-month finding in which the agency will make a final ...

On December 10, 2024, the U.S. Fish and Wildlife Service (Service) released its long-anticipated listing proposal for the monarch butterfly (Danaus plexippus), along with a proposed critical habitat designation and species-specific 4(d) rule (Proposed Rule). The Proposed Rule indicates the public comment period closes on March 12, 2025.

The Service has proposed listing the monarch as threatened primarily as a result of threats from past and ongoing loss and degradation of breeding, migratory, and overwintering habitat, exposure to insecticides, and the effects of climate ...

Today, the U.S. Fish and Wildlife Service (Service) announced it had opened status reviews for 38 species of plants, wildlife, and fish endemic to Texas, New Mexico and Arizona (Southwest Species). Section 4(c) of the Endangered Species Act (ESA) requires the Service to evaluate the status of species listed as threatened and endangered at least once every five years (5-year Review) and determine, based on that evaluation, whether any such species should be delisted, downlisted (from endangered to threatened), … 

On June 27, 2024, the U.S. Fish and Wildlife Service (Service) issued a final rule listing the Suwannee alligator snapping turtle (Macrochelids suwanniensis) as a threatened species with a 4(d) rule under the Endangered Species Act (ESA).

The Suwannee alligator snapping turtle is a large, freshwater turtle species occurring in the Suwannee River basin in Florida and Georgia. The species’ listing follows a 2012 petition filed by the Center for Biological Diversity to list 53 amphibians and reptiles, including the alligator snapping turtle (Macrochelys temminckii), which, due ...

Today, the U.S. Fish and Wildlife Service (Service) and Center for Biological Diversity entered into a settlement agreement wherein the Service agreed to submit to the Federal Register final listing decisions on the following six mussel species no later than May 23, 2024:

• Texas fatmucket (Lampsilis bracteate);
• Guadalupe fatmucket (Lampsilis bergmanni);
• Texas fawnsfoot (Truncilla macrodon);
• Texas pimpleback (Cyclonaias (= Quadrula) petrina);
• Guadalupe orb (Cyclonaias necki); and
• False spike (Fusconaia (= Quincuncina) mitchelli).

As Nossaman previously reported, on ...

Tomorrow, the U.S. Fish and Wildlife Service (Service) will publish its final rule updating regulations implementing section 10 of the Endangered Species Act (Section 10), which addresses the agency’s issuance of incidental take permits and enhancement of survival permits under Section 10. The final rule will take effect 30 days after publication in the Federal Register. In the preamble to the final rule, the Service indicates that applications for permits under Section 10 that have been processed and published in the Federal Register for publication prior to the effective ...

On March 9, the U.S. Fish and Wildlife Service (Service) issued its 12-month finding that listing Joshua trees (Yucca brevifolia and Y. jaegeriana) as endangered or threatened species under the Endangered Species Act (ESA) is not warranted. The 12-month finding was made to comply with a September 20, 2021 court-ordered remand of the Service’s previous “not warranted” finding in August 2019.

In September 2015, WildEarth Guardians submitted a petition to list the Joshua trees as threatened and, if applicable, designate critical habitat for the species. The Service issued ...

On October 25, the U.S. Fish and Wildlife Service (Service) published a proposed rule to designate critical habitat for the coastal distinct population segment (DPS) of Pacific marten (Martes caurina), also known as coastal marten, under the federal Endangered Species Act (ESA).  In the proposed rule, the Service identifies a total of approximately 1,413,305 acres of land in northwestern California and southwestern Oregon to designate as critical habitat for the coastal marten. 

Listed as a threatened species in October 2020, the coastal marten is a medium-sized carnivore in the ...

In a per curiam decision, the United States Court of Appeals for the D.C. Circuit dismissed the Center for Biological Diversity’s (CBD) challenge to the Fish and Wildlife Service’s (Service) process for assessing the status of species to inform regulatory decisions with respect to those species.  That process, referred to as species status assessment (SSA), is akin to a biological risk assessment for the target species.  It has been developed by the Service over the past several years and provides a more structured approach to assessing listing, delisting, uplisting, and ...

The U.S. Fish and Wildlife Service (USFWS) has announced the next chapter in the lesser prairie chicken’s (Tympanuchus pallidicinctus) (LEPC) tumultuous listing history. On May 26, 2021 the USFWS announced that it will propose a rule to establish a Northern distinct population segment (DPS) and a Southern DPS of the LEPC.  USFWS has proposed to list the Southern DPS – consisting of portions of New Mexico and Texas – as endangered. If finalized, the ESA take prohibition would apply across the Southern DPS without exception. The USFWS proposes to list the Northern DPS ...

Over the last few weeks, besides proposing to remove the gray wolf (Canis lupus) from the List of Endangered and Threatened Species (which we covered here), the U.S. Fish and Wildlife Service (Service) has made a few other moves related to the Endangered Species Act (ESA).

On Monday, April 8, 2019, the Service published a final rule, removing one species from the List of Endangered and Threatened Species, adding 16 separate species to the list, and updating the existing entries for 17 more species.  Specifically, the Service added the following species to the ESA List: Gulf grouper ...