CFR›Title 43›Subtitle B›Chapter II›Part 3480›Subpart 3484 ContainsSections 3484.1–3484.2CorpusDaily eCFRDisplayed edition2026-04-15Last updated2026-04-15 Subpart 3484—Performance Standards Sections 3484.1 § 3484.1 Performance standards for exploration and surface and underground mining. 3484.2 § 3484.2 Completion of operations and permanent abandonment. Previous 3483 Subpart 3483—Diligence Requirements Next 3485 Subpart 3485—Reports, Royalties and Records