48 C.F.R. § 4.1100
This subpart prescribes policies and procedures for requiring contractor registration in the System for Award Management (SAM) to—
[68 FR 56672, Oct. 1, 2003, as amended at 77 FR 188, Jan. 3, 2012; 78 FR 37678, June 21, 2013; 83 FR 48695, Sept. 26, 2018]