{"data":{"id":"us/43-cfr-3837.21","jurisdiction":"us","citation":"43 CFR 3837.21","heading":"How do I notify the delinquent co-claimant that I want to acquire his or her interests?","body":"(a) You must give the delinquent co-claimant written notice by mail using registered or certified mail, return receipt requested, or by personal service; or\n(b) If, after diligent search, you cannot locate the delinquent co-claimant, you must publish notification in a newspaper nearest the location of the claims or sites at least once a week for 90 days.","path":["Title 43—Public Lands: Interior","Subtitle B—Regulations Relating to Public Lands","CHAPTER II—BUREAU OF LAND MANAGEMENT, DEPARTMENT OF THE INTERIOR","SUBCHAPTER C—MINERALS MANAGEMENT (3000)","PART 3837—ACQUIRING A DELINQUENT CO-CLAIMANT'S INTERESTS IN A MINING CLAIM OR SITE","Subpart B—Acquisition Procedures"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-43.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:26:15Z","sha256":"f55b9beb37e09986965665c99e83f629f3c59b273e1d4ddad8031aaa8e23be75","source_id":"us-cfr","stale":true,"prev":"us/43-cfr-3837.20","next":"us/43-cfr-3837.22"},"notice":"GroundRules: Original legal text. Not legal advice."}