CFR›Title 43›Subtitle B›Chapter II›Part 3440 ContainsSubpart 3440CorpusDaily eCFRDisplayed edition2026-04-24Last updated2026-04-24 PART 3440—LICENSES TO MINE Subparts 3440 Subpart 3440—Licenses to Mine Sections 3440.0-3–3440.1-6 Authority30 U.S.C. 181 et seq.Source44 FR 42634, July 19, 1979, unless otherwise noted. Previous 3430 Part 3430—Noncompetitive Leases Next 3450 Part 3450—Management of Existing Leases