Regulations last checked for updates: Feb 06, 2026

Title 50 - Wildlife and Fisheries last revised: Jan 22, 2026
All TitlesTitle 50Chapter IVPart 451 - PART 451—APPLICATION PROCEDURE
View all text of Part 451 [§ 451.01 - § 451.03]
§ 451.01 - Definitions.

All definitions contained in 50 CFR 450.01 are applicable to this part.

authority: Endangered Species Act of 1973, 16 U.S.C. 1531
source: 50 FR 8127, Feb. 28, 1985, unless otherwise noted.
cite as: 50 CFR 451.01
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