25 U.S. Code § 715b - Economic development
(a) Plan for economic development
The Secretary shall—
(1) enter into negotiations with the governing body of the Tribe with respect to establishing a plan for economic development for this Tribe;
(2) in accordance with this section and not later than two years after the adoption of a tribal constitution as provided in section 715g of this title, develop such a plan; and
(b) Restrictions to be contained in plan
Any proposed transfer of real property contained in the plan developed by the Secretary under subsection (a) of this section shall be consistent with the requirements of section 715c of this title.