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 3501—LEASING OF SOLID MINERALS OTHER THAN COAL AND OIL SHALE > SUBPART 3515—Mineral Lease Exchanges (§3515.10 to §3515.27)