(a) This part supplements Federal Acquisition Regulation (FAR) and Department of the Interior Acquisition Regulation (DIAR) requirements in this chapter to meet the needs of the Department of Interior in implementing the Buy Indian Act.

(b) This part is under the direct oversight and control of the Chief Financial Officer, within the Office of the Assistant Secretary - Indian Affairs, Department of the Interior (CFO). The CFO is responsible for issuing and implementing this part.

(c) Acquisitions conducted under this part are subject to all applicable requirements of the FAR and DIAR, as well as internal policies, procedures, or instructions issued by Indian Affairs. After the FAR, this part would take precedence over any inconsistent Indian Affairs policies, procedures, or instructions.