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Proposed RuleOpen for Comment2026-130762026-06-29

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

Commerce Department, National Oceanic and Atmospheric Administration

Abstract

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.

Action & Dates

Action
Notice of 12-month petition finding; proposed rule; request for comments.
Dates
Comments on this proposed rule must be received by August 28, 2026.

CFR References

Topics

Endangered and threatened species

Public Comment

Comments Close
2026-08-28 — Open for comment

Document Excerpt

Document Headings Document headings vary by document type but may contain the following: the agency or agencies that issued and signed a document the number of the CFR title and the number of each part the document amends, proposes to amend, or is directly related to the agency docket number / agency internal file number the RIN which identifies each regulatory action listed in the Unified Agenda of Federal Regulatory and Deregulatory Actions See the Document Drafting Handbook for more details. Department of Commerce National Oceanic and Atmospheric Administration 50 CFR Part 226 [Docket No. 260624-0152] RIN 0648-BO44 AGENCY: National Marine Fisheries Service (NMFS), National Oceanic and Atmospheric Administration (NOAA), Commerce. ACTION: Notice of 12-month petition finding; proposed rule; request for comments. SUMMARY: 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. DATES: Comments on this proposed rule must be received by August 28, 2026. ADDRESSES: A plain language summary of this proposed rule is available at https://www.regulations.gov/​docket/​NOAA-NMFS-2025-0050 . You may submit comments on this document, identified by NOAA-NMFS-2025-0050, by any of the following methods: Electronic Submission: Submit all electronic public comm

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Full Document

Citation: 91 FR 39046