22 CFR § 201.53 - Final date for presentation of documents.
(1) Payments or negotiations made under letters of credit expiring no later than the expiration date stated in the letter of commitment, or
(c) Direct letter of commitment to supplier. Documents prescribed for payment under a direct letter of commitment to a supplier shall be presented by the supplier to USAID no later than the expiration date stated therein. Such documents must evidence shipment no later than the terminal shipment date provided in the direct letter of commitment.