In Waterkeeper Alliance v. EPA, the Ninth Circuit held that the Environmental Protection Agency failed to properly consider key factors when it declined to revise technology-based Effluent Limitations Guidelines and Standards (ELGs) for seven industrial categories. The ruling suggests the
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Seven County Infrastructure Coalition v. Eagle County: Agencies Granted Substantial Deference in Assessing Project Scope and Environmental Impacts
In a significant decision interpreting the National Environmental Policy Act (NEPA), the U.S. Supreme Court issued its opinion in Seven County Infrastructure Coalition v. Eagle County, Colorado on May 29, 2025. For certain projects, NEPA requires federal agencies to prepare…
U.S. Fish and Wildlife Service and National Marine Fisheries Service Propose to Rescind the Regulatory Definition of “Harm” Under Endangered Species Act
On April 17, 2025, the U.S. Fish and Wildlife Service (“USFWS”) and the National Marine Fisheries Service (“NMFS”) (collectively the “Services”) published a notice in the Federal Register of a proposed rulemaking that would rescind the regulatory definition of “harm”…
Fed up with Federal Rules? OMB Implements a Federal Deregulation Idea Solicitation Process on White House Urging.
On April 9, 2025, the White House published a new Memorandum entitled “Directing The Repeal of Unlawful Regulations,” aimed at identifying and reviewing unlawful or potentially unlawful regulations for potential repeal. The Memorandum avers that illegal, unnecessary, and onerous regulations…
SCOTUS Strikes Down “End-Result” Limitations in NPDES Permits
U.S Fish and Wildlife Service Proposes to List the Monarch Butterfly as Threatened, Seeks Comments on Developing a Final Rule
On December 12, 2024, the U.S. Fish and Wildlife Service (the “Service”) published notice in the Federal Register of a proposed rule to list the monarch butterfly as a threatened species under the Endangered Species Act (“ESA”). The proposed rule…
The Chevron Doctrine’s Gone, but the APA Lives On

Many speculated on just how much Loper Bright Enterprises v. Raimondo (Loper Bright) would affect agency rulemaking challenges. Well, the D.C. Circuit is showing that that effect maybe milder than expected. Huntsman Petrochemical, the American Chemistry Council, and the Louisiana…
Supreme Court 2024: Key Rulings Reshape Federal Regulatory Authority
EPA Reconsiders New Risk Management Program Regulations, but Regulations Remain in Effect
Stoel Rives Summer Associate Maya Ward co-authored this post.
The D.C. Circuit Court of Appeals placed the challenges to the U.S. Environmental Protection Agency’s (“EPA”) risk management regulation on hold for 120 days while the EPA reconsiders the concerns raised by…
Restart the Clock: SCOTUS Expands the Timeframe to Challenge Agency Actions
Stoel Rives Summer Associate Jessica Wright co-authored this post.
In a landmark decision on July 1, 2024, the Supreme Court ruled that the six-year statute of limitations for facial challenges to agency regulations under the Administrative Procedure Act (APA) begins when…