48 C.F.R. § 32.401
The agency may authorize advance payments in negotiated and sealed bid contracts if the action is appropriate under
[48 FR 42328, Sept. 19, 1983, as amended at 50 FR 1744, Jan. 11, 1985; 50 FR 52429, Dec. 23, 1985; 72 FR 63030, Nov. 7, 2007; 79 FR 24211, Apr. 29, 2014; 87 FR 73899, Dec. 1, 2022]