CFR›Title 43›Subtitle B›Chapter II›Part 3836 ContainsSubparts A–BCorpusDaily eCFRDisplayed edition2026-04-24Last updated2026-04-24 PART 3836—ANNUAL ASSESSMENT WORK REQUIREMENTS FOR MINING CLAIMS Subparts A Subpart A—Performing Assessment Work Sections 3836.10–3836.15 B Subpart B—Deferring Assessment Work Sections 3836.20–3836.27 Authority30 U.S.C. 22, 28, 28b-28e; 43 U.S.C. 2, 1201, 1457, 1701 et seq.; 50 U.S.C. App. 501, 565.Source68 FR 61077, Oct. 24, 2003, unless otherwise noted. Previous 3835 Part 3835—Waivers from Annual Maintenance Fees Next 3837 Part 3837—Acquiring a Delinquent Co-Claimant's Interests in a Mining Claim or Site