22 C.F.R. § 201.65
(c) Commissions and other payments, credits, benefits or allowances to importers, purchasing agents and others. Unless otherwise authorized by USAID, no commission or other payment, credit, benefit or allowance of any kind shall be paid, made, or given, or agreed to be paid, made or given, in connection with any sale subject to this part by the supplier or its agent:
(h) Brokerage commission. In connection with ocean freight services, USAID will finance a brokerage commission only if: