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50 CFR § 31.1 - Determination of surplus wildlife populations.

---
identifier: "/us/cfr/t50/s31.1"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "50 CFR § 31.1 - Determination of surplus wildlife populations."
title_number: 50
title_name: "Wildlife and Fisheries"
section_number: "31.1"
section_name: "Determination of surplus wildlife populations."
chapter_name: "UNITED STATES FISH AND WILDLIFE SERVICE, DEPARTMENT OF THE INTERIOR"
subchapter_number: "C"
subchapter_name: "THE NATIONAL WILDLIFE REFUGE SYSTEM"
part_number: "31"
part_name: "WILDLIFE SPECIES MANAGEMENT"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "Sec. 2, 33 Stat. 614, as amended, sec. 5, 43 Stat. 651, secs. 5, 10, 45 Stat. 449, 1224, secs. 4, 2, 48 Stat. 402, as amended, 451, as amended, 1270, sec. 4, 76 Stat. 654; 5 U.S.C. 301, 16 U.S.C. 685, 725, 690d, 715i, 664, 718(b), 43 U.S.C. 315a, 16 U.S.C. 460k; sec. 2, 80 Stat. 926; 16 U.S.C. 668bb."
regulatory_source: "31 FR 16027, Dec. 15, 1966, unless otherwise noted."
cfr_part: "31"
---

# 31.1 Determination of surplus wildlife populations.

The populations and requirements of wildlife species on wildlife refuge areas shall be determined by population census, habitat evaluation, and other means of ecological study.