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U.S. Supreme Court Will Revisit Auer Deference

On December, 10, 2018, the United States Supreme Court granted a petition for writ of certiorari in Kisor  v. Wilkie (No. 18-15), which raises the issue of whether Auer deference should be overruled.  Auer deference (also known as Seminole Rock deference) requires courts to defer to an agency’s reasonable interpretation of its own ambiguous regulations.  Auer deference … Continue Reading

Supreme Court Rules ESA Critical Habitat Must Be Habitat For Listed Species

On November 27, 2018, the U.S. Supreme Court ruled that an area is eligible to be designated as “critical habitat” under the Endangered Species Act (ESA) only if the area is habitat for the relevant threatened or endangered species.  Weyerhaeuser Co. v. U.S. Fish and Wildlife Service, Dkt. No. 17-71.  The Court vacated the U.S. … Continue Reading

U.S. Supreme Court Passes on Otter Case with Chevron Implications

Yesterday, the U.S. Supreme Court denied certiorari in California Sea Urchin Commission v. Combs (“Combs”), Docket No. 17-1636, an appeal from a Ninth Circuit decision regarding endangered Southern sea otters (Enhydra lutris nereis) and deference to the decisions of the U.S. Fish and Wildlife Service (“Service”).  As we reported here last month, the case was … Continue Reading

Endangered Species Act Litigation Round-Up

The last several days have seen a flurry of activity in the federal courts in matters involving the Endangered Species Act (ESA): In Crown Indian Tribe v. United States, CV 17-89-M-DLC, the U.S. District Court for the District of Montana vacated (pdf) a June 30, 2017 final rule issued by the U.S. Fish and Wildlife … Continue Reading

Endangered Species Case Sparks Chevron Deference Debate

As the U.S. Supreme Court prepares for its upcoming October 2018 term, one petition concerning an endangered sea otter relocation program is attracting a lot of attention as a potential vehicle for the Court to consider the broader issue of Chevron deference, the legal doctrine that requires courts to defer to an agency’s reasonable interpretation … Continue Reading

Beetle Science Front and Center in New Lawsuit

On September 4, 2018, the Center for Biological Diversity filed a lawsuit under the federal Freedom of Information Act against the U.S. Fish and Wildlife Service (Service).  The lawsuit alleges that the Service has used irresponsible scientific methods while conducting its review of the endangered status for the American burying beetle (Nicrophorus americanus) pursuant to … Continue Reading

Court Rejects Challenge to New Mexico Cougar Trapping Regulations

The U.S. District Court for the District of New Mexico granted New Mexico’s motion for summary judgment in a case brought by the Humane Society seeking to invalidate State trapping regulations related to cougars (Puma concolor).  Plaintiffs argued that the regulations, which amended existing regulations that authorize trapping of cougars, violate the Endangered Species Act’s … Continue Reading

What Might Justice Kavanaugh Mean for the ESA?

On July 9, 2018, President Trump nominated Judge Brett Kavanaugh, who currently sits on the U.S. Court of Appeals for the District of Columbia Circuit, to replace retiring Associate Justice Anthony Kennedy on the U.S. Supreme Court. While much of the public discourse about Judge Kavanaugh’s nomination has focused on hot-button issues like abortion and … Continue Reading
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