The U.S. Department of Justice is doubling down on efforts to restrict federal overreach under the Endangered Species Act (ESA), filing formal motions for summary judgment to defend the rescission of previous regulatory definitions of “harm”.

The legal battle stems from a series of lawsuits filed by environmental organizations challenging the administration’s decision to remove “habitat modification” from the definition of a statutory “take”. For decades, FWS and NMFS utilized this expanded definition to regulate broad environmental modifications. However, the DOJ’s new filings argue that this interpretation went far beyond what Congress intended when it wrote the ESA, noting that statutory verbs defining a “take” (such as trap, kill, or wound) focus strictly on direct, intentional actions against individual animals.

Crucially, the Justice Department’s defense leans heavily on the Supreme Court’s historic decision ending Chevron deference. Government attorneys argue that federal agencies are no longer permitted to stretch statutory language and must instead adhere to the plain text enacted by Congress.

Impact on Trout and Freshwater Producers:

Water rights, stream management, and facility infrastructure are central to commercial trout farming. Broad definitions of habitat modification have historically left farmers vulnerable to overlapping federal restrictions on routine agricultural and water-use practices. While environmental groups are fighting aggressively to reinstate the prior rules, the DOJ’s push for summary judgment marks a major milestone in the administration’s broader regulatory reform agenda.