Regulations last checked for updates: May 19, 2024

Title 43 - Public Lands: Interior last revised: May 13, 2024
authority: 43 U.S.C. 373; 43 U.S.C. 373b; 43 U.S.C. 387; 43 CFR part 21; Public Law 108-447, Title VIII; 31 U.S.C. 9701,as
source: 73 FR 74335, Dec. 5, 2008, unless otherwise noted.