25 U.S.C. § 1652

(a) In general Pursuant to section 13 of this title , the Secretary, acting through the Service, shall enter into contracts with, or make grants to, urban Indian organizations to assist the urban Indian organizations in the establishment and administration, within urban centers, of programs that meet the requirements of this subchapter. (b) Conditions Subject to section 1656 of this title , the Secretary, acting through the Service, shall include such conditions as the Secretary considers necessary to effect the purpose of this subchapter in any contract into which the Secretary enters with, or in any grant the Secretary makes to, any urban Indian organization pursuant to this subchapter.