Endangered Species Law & Policy

On February 24, 2026, the Department of the Interior (DOI) rescinded most of its regulations implementing the National Environmental Policy Act (NEPA). The rescission may change how DOI conducts analysis for projects that require both NEPA and Endangered Species Act (ESA) analysis. The following questions and answers provide context for what this action means and its potential impacts.

What is NEPA?

The National Environmental Policy Act (NEPA) is a federal statute that requires Federal agencies to assess the environmental effects of proposed major Federal actions. 42 U.S.C ...

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 third in a series of blog posts that will briefly describe each proposed ...

On January 20, 2025, President Trump issued Executive Order 14154, “Unleashing American Energy,” which requires all agencies to identify actions that potentially burden deployment of domestic energy resources and develop plans to revise, rescind, and suspend any such actions (Executive Order). On February 3, 2025, Secretary of the Interior, Doug Burgum (Secretary), issued Secretarial Order 3418, “Unleashing American Energy” (Secretarial Order), which provides 15 days for agencies within the Department of the Interior to submit a plan on how they will comply with the Executive Order. … 

Last week, the U.S. District Court for the District of Columbia issued a ruling allowing the Center for Biological Diversity (CBD) to continue pursuing its large Endangered Species Act (ESA) lawsuit against the U.S. Fish and Wildlife Service (Service) and the Department of the Interior.

The underlying lawsuit, filed in 2019, alleges that the Service violated the ESA by failing to timely publish 12-month findings on nearly 200 listing petitions, final listing determinations for six species, and designations of critical habitat for four species.  In response, the Service filed a ...

This January, the Department of the Interior and the Department of Commerce announced updated civil monetary penalties for violations of federal wildlife and natural resource protection laws including the Endangered Species Act (ESA), Marine Mammal Protection Act (MMPA), Bald and Golden Eagle Protection Act (BGEPA), Magnuson-Stevens Fishery Conservation and Management Act (Magnuson-Stevens), Lacey Act, National Marine Sanctuaries Act (NMSA), and others.

The Federal Civil Penalties Inflation Adjustment Act Improvements Act of 2015 requires federal agencies to adjust ...

On December 10, 2021, the Biden Administration released the Fall 2021 Unified Agenda of Regulatory and Deregulatory Actions (Unified Agenda), which is a semi-annual compilation of information concerning regulations and policy under development by federal agencies. Department of the Interior (DOI) entries on the Unified Agenda reveal a lengthy set of planned regulatory actions, some of which may have an impact on development and deployment of energy, construction and operation of transportation and other infrastructure, and various other economic activities. … 

On June 29, 2021, fourteen members of Congress delivered a letter to Secretary of the Interior Deb Haaland urging the U.S. Fish and Wildlife Service (Service) to use its authority to list the monarch butterfly (Danaus plexippus) on an emergency basis under section 4 of the Endangered Species Act (ESA). The letter, which garnered only Democratic support, notes that the population of western monarchs has sunk to under 2,000 individuals and states that immediate action is necessary to prevent extinction of the species.

Section 4 of the ESA authorizes the Service to immediately place a ...

The first 100 days of a new administration can define what lies ahead for the next four years. Join our panel of Nossaman Environment & Land Use attorneys from across the U.S. on April 15, 2021 from 11:00 a.m. – 12:30 p.m. PT as we review and evaluate the Biden administration’s first 100 days of policy moves involving environmental and natural resources management.

We will discuss efforts to fill leadership roles at CEQ, EPA, Interior, DOT and other federal agencies. Updates and analysis will be provided regarding key areas of policy, legislation and regulation, including:

• Climate ...

Recently, the Department of the Interior released a pre-publication version of a Federal Register notice delaying the effective date of the Migratory Bird Treaty Act (MBTA) take definitional rule to March 8, 2021, and opening a 20-day public comment period, which will close March 1, 2021.  The MBTA was enacted in 1918 to implement an international convention for the protection of migratory birds in response to declines in populations of a number of species of birds resulting from widespread hunting and poaching.  The take definitional rule states in full:

“The prohibitions of the ...

As we previously reported, more than 150 organizations have requested that the Department of the Interior (DOI) extend the public comment period associated with DOI’s proposed changes to how it will process requests for information under the Freedom of Information Act (FOIA) (Proposed Regulations) by no less than 120 days due, in part, to the partial government shutdown.  Without referencing or responding to these multiple requests, DOI announced that it will extend the comment period for the Proposed Regulations by a single day. According to the announcement from DOI, the ...

On December 28, 2018, the Department of the Interior (DOI) published proposed changes to its rules governing how it processes requests for records under the Freedom of Information Act (FOIA) and provided a 30-day timeframe in which the public could submit comments to the DOI concerning those changes. The public review and comment period is currently scheduled to close on January 28, 2019. However, the partial government shutdown has caused several groups to question whether or not the public comment period should, in fact, close as scheduled. More than 1,200 comments have been ...

On November 8, 2017, the House of Representatives Committee on Natural Resources approved an amendment to oil and gas-related legislation, the SECURE Act (H.R. 4239), that is intended to obviate liability for the incidental or accidental take of migratory birds under the Migratory Bird Treaty Act, 16 U.S.C. § 703 et seq. (Act).  The amendment, submitted by Congresswoman Liz Cheney (R-WY), provides: This Act shall not be construed to prohibit any activity proscribed by section 2 of this Act that is accidental or incidental to the presence or operation of an otherwise lawful ...

On October 25, 2017, the U.S. Department of the Interior (DOI) released a report entitled Review of the Department of the Interior Actions that Potentially Burden Domestic Energy identifying agency actions that potentially burden the development or use of domestic energy resources.  This report, generated in response to Executive Order 13783, identifies several costly and burdensome regulations that DOI believes hamper the production or transmission of domestic energy.  The report pays particular attention to the oil, natural gas, coal, and nuclear energy sectors, and ...

On June 8^th, 2017, Department of Interior (DOI) Secretary Ryan Zinke signed Secretarial Order 3353, entitled Greater Sage-Grouse Conservation and Cooperation with Western States.  This Order initiates the assessment of both federal and state-led conservation efforts related to the greater sage-grouse and establishes a review panel to undertake the evaluation. The review panel will then recommend (potentially significant) changes to how the bird is managed. The stated purposes of the Order are to 1) enhance cooperation between DOI and the eleven western states comprising the ...