Data / Federal rules / 2026-13076

Endangered and Threatened Wildlife and Plants; 12-Month Finding and Proposed Rule To Revise Critical Habitat Designation for Southern California Steelhead

The National Oceanic and Atmospheric Administration published this proposed rule in the Federal Register on June 29, 2026. Comments closed on August 28, 2026.

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What the agency says

We, NMFS, announce a 12-month finding on a petition to revise the critical habitat designation under the Endangered Species Act (ESA) for the Southern California steelhead (Oncorhynchus mykiss) distinct population segment (DPS). The petition from the United Water Conservation District (UWCD) requests the removal of an approximately 9-mile (14.5-kilometer (km)) stream reach from the confluence of Hopper Creek and the Santa Clara River to the face of Santa Felicia Dam. Based on our review of the best scientific and commercial data available, we find that the petitioned action to remove this reach from the critical habitat designation is warranted. Consequently, we are proposing to remove this reach from the critical habitat designation for Southern California steelhead.

Key facts

Document number: 2026-13076
Type: Proposed rule
Action: Notice of 12-month petition finding; proposed rule; request for comments
Agency: Commerce Department; National Oceanic and Atmospheric Administration
Published: June 29, 2026
Comments due: August 28, 2026
Dates: Comments on this proposed rule must be received by August 28, 2026.
Docket: Docket No. 260624-0152
Regulation ID (RIN): 0648-BO44
Code of Federal Regulations: 50 CFR 226
Topics: Endangered and threatened species
Pages: 9

The document on federalregister.gov PDF

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Everything from the National Oceanic and Atmospheric Administration · Rules on endangered and threatened species · Published in June 2026

Read from the Federal Register API, last updated 2026-10-23. The document on federalregister.gov is the official record; dates and dockets can change through later corrections. Free to reuse with credit to SpecStream under CC BY 4.0.