National Law Review
7/15/2026

FWS and NMFS Finalize Rescission of ESA “Harm” Definition
Short summary
The U.S. Fish and Wildlife Service and National Marine Fisheries Service finalized a rule rescinding the regulatory definition of 'harm' under the Endangered Species Act, effective September 14, 2026. Habitat modification or degradation will no longer independently constitute a prohibited 'take' of listed wildlife, reducing incidental-take authorization requirements for landowners and businesses. ESA Section 7 consultation and critical-habitat obligations remain unchanged.
- •FWS and NMFS finalized rescission of the ESA 'harm' definition, effective September 14, 2026
- •Habitat modification alone will no longer be treated as prohibited take, reducing permit burdens for landowners
- •Section 7 consultation, jeopardy, and critical-habitat obligations for federal actions remain in place
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