7 C.F.R. § 1493.500
(a) Notice of default. If the importer fails to make payment pursuant to the terms of the importer obligation, the exporter or the exporter's assignee must submit a notice of default to CCC as soon as possible, but not later than 10 calendar days after the date that payment was due from the importer (the due date). A notice of default must be submitted in writing to the Treasurer, CCC, at the address specified in the Contacts P/R. If the exporter or the exporter's assignee fails to promptly notify CCC of defaults in accordance with this paragraph, CCC may make the payment guarantee null and void with respect to any payment(s) applicable to such default. This time limit may be extended only under extraordinary circumstances and if such extension is determined by the Controller, CCC, to be in the best interests of CCC. The notice of default must include:
(b) Filing a claim for loss. A claim for a loss by the exporter or the exporter's assignee will not be paid if it is made later than six months from the due date of the defaulted payment. A claim for loss must be submitted in writing to the Treasurer, CCC, at the address specified in the Contacts P/R. The claim for loss must include the following information and documents:
(4) A copy of each of the following documents, with a cover document containing a signed certification by the exporter or the exporter's assignee that each page of each document is a true and correct copy:
(iii)