36 CFR § 18.3
What property may be leased?
November 4, 2020
(a) In general. The Director may lease any property (except non-historic land) under this part if the Director makes the determinations required by §18.4.
(b) Non-historic land. Non-historic land may not be leased under this part. Certain non-historic land is eligible for leasing under 36 CFR part 17.