The Endangered Species Act has shielded more than 1,600 species since 1973. For fifty of those years, one regulation did most of the heavy lifting: it defined "harm" to include destroying a species' habitat—not just directly killing the animal. On July 10, the Trump administration finalized a rule erasing that definition. It published in the Federal Register today, July 14, 2026. It takes effect September 14, 2026, unless courts stop it first. Hours after publication, Earthjustice filed a federal lawsuit in Seattle, and two Pacific Northwest tribes filed their own suit the same day.

1. The Habitat Rule Was Always Regulatory Overreach (Interior Secretary Doug Burgum, Industry Coalition)

The rule expanded "harm" far beyond what Congress wrote into the statute—and Loper Bright finally makes that correctable.

The original ESA text never authorized habitat regulation. Interior Secretary Doug Burgum said the old approach "turned routine activity into a regulatory trap, drove up costs that impacted people's lives, and expanded federal authority beyond what Congress intended." The administration's argument runs through the Supreme Court's 2024 Loper Bright ruling, which overturned the Chevron doctrine. Interior's position: the 1975 habitat-harm regulation was only defensible under Chevron deference; without it, the plain text of "harm" covers direct killing—not habitat modification.

Over 40 industry and agriculture groups backed the change. The California Farm Bureau, National Milk Producers Federation, and Western Growers Association supported rescinding the rule, arguing the habitat standard imposed burdens "based on subjective preferences for the ecosystem rather than known consequences to individual members of a species." Burgum says the new rule "restores common sense, respects private property, and provides certainty for landowners." Existing permits and incidental take statements remain valid.

2. Without Habitat Protection, the ESA Is Mostly Toothless (Michael J. Parr, American Bird Conservancy)

Habitat loss is why most listed species got listed—strip the habitat rule and the statute doesn't protect against the actual threat.

Habitat loss is the primary driver of species decline. Michael J. Parr, president of the American Bird Conservancy, said "habitat loss and degradation are the primary drivers of bird declines; it's what's led many species to be listed under the ESA in the first place." Species like the Marbled Murrelet, Whooping Crane, and Florida Scrub-Jay face their greatest threats from habitat destruction, not direct killing. The harm rule blocked projects that would wipe out their remaining territory.

Without habitat protection, the ESA fights threats that aren't killing species. Conservationists argue that most of the 1,600+ listed species are on the list precisely because they've run out of places to live. Rep. Jared Huffman (D-CA), ranking member of the House Natural Resources Committee, called the change "corrupt, illegal, and untethered from scientific reality," and said it would allow habitat destruction with "zero repercussions or accountability." Sierra Club wildlife campaign manager Ben Greuel said the rule "ignores reality in an unlawful attempt to open the door for corporate polluters."

3. This Breaks Treaty Obligations, Not Just Conservation Law (Swinomish Indian Tribal Community, Squaxin Island Tribe)

The tribes' argument isn't about environmentalism—it's about federal treaty promises that depend on salmon survival.

Habitat loss has already devastated Puget Sound salmon. The Swinomish Indian Tribal Community and the Squaxin Island Tribe filed a federal lawsuit today arguing that removing habitat protection will directly harm ESA-listed salmon species that tribes depend on for food, culture, and treaty-guaranteed fishing rights. Their complaint states that "habitat degradation has been primarily responsible for the loss of salmon stocks in Puget Sound."

The federal government denied the tribes' request for consultation. Before Interior finalized the rule, the Swinomish and Squaxin Island tribes invoked their right to government-to-government consultation—the formal process under which the U.S. must engage tribal governments on decisions affecting treaty rights. The federal government denied that request. Salmon listed under the ESA are central to tribal treaty rights across the Pacific Northwest, and the harm rule has kept their habitat intact.

Where This Lands

The real battle is in the courts. Earthjustice filed in Seattle today, and the tribes filed separately—both have until September 14 to win a restraining order before the rule takes effect. Harvard's Environmental and Energy Law Program disputes the administration's core theory—that Sweet Home (1995) was purely a Chevron ruling and can't survive Loper Bright—calling it "pretext," and pointing to the Sweet Home majority's independent statutory analysis of the ESA's text and purpose. If courts don't intervene, energy development, logging, and construction near listed species' remaining habitat will face no federal liability for destroying it. California already has its own equivalent state law; other states are watching.

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