25 U.S. Code § 1680n - Priority for Indian reservations
(a) Facilities and projects
Beginning on October 29, 1992, the Bureau of Indian Affairs and the Service shall, in all matters involving the reorganization or development of Service facilities, or in the establishment of related employment projects to address unemployment conditions in economically depressed areas, give priority to locating such facilities and projects on Indian lands if requested by the Indian tribe with jurisdiction over such lands.
(b) “Indian lands” defined
For purposes of this section, the term “Indian lands” means—