Regulations last checked for updates: May 20, 2024

Title 50 - Wildlife and Fisheries last revised: May 14, 2024
authority: 16 U.S.C. 1361-1407; 1531-1544; and 4201-4245, unless otherwise noted
source: 40 FR 44415, Sept. 26, 1975. Redesignated at 85 FR 82388, Dec. 18, 2020, and further redesignated at 87 FR 43447, July 21, 2022.