Regulations last checked for updates: Feb 07, 2026

Title 18 - Conservation of Power and Water Resources last revised: Feb 02, 2026
authority: 5 U.S.C. 571-83; 42 U.S.C. 7101-7532; 49 U.S.C. 60502; 49 App. U.S.C. 1-85
source: Order 561, 58 FR 58779, Nov. 4, 1993, unless otherwise noted.