CFR > Title 43 - Public Lands: Interior > SUBTITLE B—Regulations Relating to Public Lands > CHAPTER II—BUREAU OF LAND MANAGEMENT, DEPARTMENT OF THE INTERIOR (parts 1000 to 9260) > SUBCHAPTER C—MINERALS MANAGEMENT (3000) (parts 3000 to 3871) > PART 3837—ACQUIRING A DELINQUENT CO-CLAIMANT'S INTERESTS IN A MINING CLAIM OR SITE > SUBPART B—Acquisition Procedures (§3837.20 to §3837.24) > 3837.21—How do I notify the delinquent co-claimant that I want to acquire his or her interests?

3837.21—How do I notify the delinquent co-claimant that I want to acquire his or her interests?

(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
(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.