48 C.F.R. § 19.202
In order to further the policy in 19.201(a), contracting officers shall comply with the specific policies listed in this section and shall consider recommendations of the agency Director of the Office of Small and Disadvantaged Business Utilization, or for the Department of Defense, the Director of the Office of Small Business Programs, or the Director's designee, as to whether a particular acquisition should be awarded under subpart 19.5, 19.8, 19.13, 19.14, or 19.15. Agencies shall establish procedures including dollar thresholds for review of acquisitions by the Director or the Director's designee for the purpose of making these recommendations. The contracting officer shall document the contract file whenever the Director's recommendations are not accepted, in accordance with 19.506.
48 C.F.R. §19.202