48 C.F.R. § 38.201
(a) Subject to interagency agreements, contracting officers having responsibility for awarding Federal Supply Schedule contracts shall coordinate and obtain approval of the General Services Administration's Federal Supply Service (FSS) before—
[48 FR 42368, Sept. 19, 1983, as amended at 54 FR 29282, July 11, 1989; 56 FR 55372, Oct. 25, 1991; 59 FR 53718, Oct. 25, 1994; 62 FR 40237, July 25, 1997]