Regulations last checked for updates: Jan 10, 2026

Title 43 - Public Lands: Interior last revised: Dec 18, 2025
authority: 30 U.S.C. 185 and 189, and 43 U.S.C. 1732(b), 1733, and 1740
source: 70 FR 21078, Apr. 22, 2005, unless otherwise noted.