On Friday, July 10, 2026, the Trump administration finalized a rule that significantly weakens habitat protections for endangered species. The change redefines the term "harm" within the Endangered Species Act, a cornerstone of U.S. environmental law for over 50 years.
Previously, "harm" included significant habitat modification or degradation that impaired an animal's ability to feed, find shelter, or breed. The Supreme Court upheld this interpretation as far back as 1995. Now, however, the destruction of a nest or a habitat is no longer considered a legal violation.
This regulatory shift clears the way for increased drilling, mining, agriculture, and land development in these areas. Environmentalists have labeled this the most drastic rollback of wildlife protections in half a century. With many species already struggling from a lack of suitable habitat, this additional pressure could accelerate their path toward extinction.
The Departments of the Interior and Commerce stated that they are restoring the law's original intent. Officials claimed that in recent years, the Act has been used to block legitimate economic activity. "Federal agencies have misused the ESA to hinder lawful land use," stated Interior Secretary Doug Burgum.
The National Mining Association praised the decision. Meanwhile, 16 state attorneys general, including those from California and New York, condemned the reasoning behind the change as "arbitrary and contrary to the law."
The public comment period for the rule drew approximately 220,000 responses. Nearly 99 percent of those who weighed in were opposed to the move. Even some state agencies under Republican leadership warned of severe consequences.
Historical examples illustrate how the previous rule operated. Barn owls require pristine beaches for nesting. Red-billed woodpeckers depend on old-growth pines. California tiger salamanders rely on seasonal ponds. Destroying these environments without directly killing the animals will no longer be classified as "harm."
The legal advocacy group Earthjustice plans to file a lawsuit. However, if the case reaches the current Supreme Court, the conservative majority could make the regulatory change permanent. This raises questions for species that are already teetering on the brink of extinction.
Legal experts note that projects were rarely blocked entirely due to habitat concerns. More often, companies developed mitigation plans to minimize their impact. Now, the incentive for developers to do so will be significantly diminished.
