43 C.F.R. § 3512.16 How do I sublease my lease?
Title 43 - Public Lands: Interior
(a) You must file one copy of the sublease between you and the sublessee within 90 days from the date of final execution of the sublease. (b) The sublessee must also file a signed and dated request for approval, a statement of qualifications (see subpart 3502 of this part) and a $25 fee. (c) We will notify you with a decision indicating approval or disapproval.
Title 43: Public Lands: Interior
PART 3500—LEASING OF SOLID MINERALS OTHER THAN COAL AND OIL SHALE
Subpart 3512—Assignments and Subleases
How to Assign Leases
§ 3512.16 How do I sublease my lease?