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

**Action Urgency Score:** 20/100

| Field | Value |
|---|---|
| Agency | Commerce Department; National Oceanic and Atmospheric Administration |
| Type | Proposed rule |
| Action | Notice of 12-month petition finding; proposed rule; request for comments. |
| Published | 2026-06-29 |
| Comments close | 2026-08-28 |
| Significant | No |
| CFR parts | 50 CFR 226 |
| 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 reac |
| Document number | 2026-13076 |

## Why this score


Source: Federal Register API (Office of the Federal Register) (https://www.federalregister.gov/documents/2026/06/29/2026-13076/endangered-and-threatened-wildlife-and-plants-12-month-finding-and-proposed-rule-to-revise-critical). Last refreshed: 2026-11-04T21:40:49.974Z.
Data from the Federal Register API; the published Federal Register document is authoritative. Informational only, not legal advice.