50 CFR § 660.40 - Rebuilding plans.

---
identifier: "/us/cfr/t50/s660.40"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "50 CFR § 660.40 - Rebuilding plans."
title_number: 50
title_name: "Wildlife and Fisheries"
section_number: "660.40"
section_name: "Rebuilding plans."
chapter_name: "FISHERY CONSERVATION AND MANAGEMENT, NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION, DEPARTMENT OF COMMERCE"
part_number: "660"
part_name: "FISHERIES OFF WEST COAST STATES"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "16 U.S.C. 1801  16 U.S.C. 773  and 16 U.S.C. 7001"
regulatory_source: "61 FR 34572, July 2, 1996, unless otherwise noted."
cfr_part: "660"
---


# 660.40 Rebuilding plans.

For each overfished groundfish stock with an approved rebuilding plan, this section contains the standards to be used to establish annual or biennial ACLs, specifically the target date for rebuilding the stock to its MSY level and the harvest control rule to be used to rebuild the stock. The harvest control rule may be expressed as a “Spawning Potential Ratio” or “SPR” harvest rate.

(a) *Yelloweye rockfish.* Yelloweye rockfish was declared overfished in 2002. The target year for rebuilding the yelloweye rockfish stock to B<sub>MSY</sub> is 2029. The harvest control rule to be used to rebuild the yelloweye rockfish stock is an annual SPR harvest rate of 65.0 percent.

(b) *Quillback rockfish off California.* Quillback rockfish off California was declared overfished in 2023. The target year for rebuilding the California quillback rockfish stock to B<sub>MSY</sub> is 2060. The harvest control rule to be used to rebuild the quillback rockfish stock off California is the ABC Rule (P* 0.45).

[82 FR 9638, Feb. 7, 2017, as amended at 83 FR 63991, Dec. 12, 2018; 85 FR 79892, Dec. 11, 2020; 89 FR 101525, Dec. 16, 2024]