Regulations last checked for updates: Jan 23, 2026

Title 50 - Wildlife and Fisheries last revised: Jan 15, 2026
authority: Secs. 9(f)(1), 11(f), Pub. L. 93-205, 87 Stat 893, 897 (16 U.S.C. 1538(f)(1), 1540(f))
source: 49 FR 42941, Oct. 25, 1984, unless otherwise noted.