CFR›Title 43›Subtitle B›Chapter II›Part 3450 ContainsSubparts 3451–3453CorpusDaily eCFRDisplayed edition2026-04-15Last updated2026-04-15 PART 3450—MANAGEMENT OF EXISTING LEASES Subparts 3451 Subpart 3451—Continuation of Leases: Readjustment of Terms Sections 3451.1–3451.2 3452 Subpart 3452—Relinquishment, Cancellation, and Termination Sections 3452.1–3452.3 3453 Subpart 3453—Transfers by Assignment, Sublease or Otherwise Sections 3453.1–3453.3-4 Authority30 U.S.C. 181 et seq.; 30 U.S.C. 351-359; 30 U.S.C. 521-531; 30 U.S.C. 1201 et seq.; and 43 U.S.C. 1701 et seq.Source44 FR 42635, July 19, 1979, unless otherwise noted. Previous 3440 Part 3440—Licenses to Mine Next 3460 Part 3460—Environment