48 C.F.R. § 3.402
Contractors' arrangements to pay contingent fees for soliciting or obtaining Government contracts have long been considered contrary to public policy because such arrangements may lead to attempted or actual exercise of improper influence. In 10 U.S.C. 3321(b) and 41 U.S.C. 3901, Congress affirmed this public policy but permitted certain exceptions. These statutes—
[48 FR 42108, Sept. 19, 1983, as amended at 79 FR 24196, Apr. 29, 2014; 87 FR 73895, Dec. 1, 2022]