25 CFR § 162.207 - When can the Indian landowners grant an agricultural lease?
(a) Tribes grant leases of tribally-owned agricultural land, including any tribally-owned undivided interest(s) in a fractionated tract, subject to our approval. Where tribal land is subject to a land assignment made to a tribal member or some other individual under tribal law or custom, the individual and the tribe must both grant the lease, subject to our approval.
(c) An agricultural lease of a fractionated tract may be granted by the owners of a majority interest in the tract, subject to our approval. Although prior notice to non-consenting individual Indian landowners is generally not needed prior to our approval of such a lease, a right of first refusal must be offered to any non-consenting Indian landowner who is using the entire lease tract at the time the lease is entered into by the owners of a majority interest. Where the owners of a majority interest grant such a lease on behalf of all of the Indian owners of a fractionated tract, the non-consenting Indian landowners must receive a fair annual rental.