43 C.F.R. § 3213.11 What must I do to relinquish a lease?
Title 43 - Public Lands: Interior
Send BLM a written request that includes the serial number of each lease you are relinquishing. If you are relinquishing the entire lease, no legal description of the land is required. If you are relinquishing part of the lease, you must describe the lands relinquished.
Title 43: Public Lands: Interior
PART 3200—GEOTHERMAL RESOURCE LEASING
Subpart 3213—Relinquishment, Termination, Cancellation, and Expiration
§ 3213.11 What must I do to relinquish a lease?
