19 C.F.R. § 10.430 – Export requirements.

(a) Submission of certification to CBP. An exporter or producer in the United States that signs a certification of origin for a good exported from the United States to Chile must provide a copy of the certification (or such other medium or format approved by the Chile customs authority for that purpose) to CBP upon request.
(b) Notification of errors in certification. An exporter or producer in the United States who has completed and signed a certification of origin, and who has reason to believe that the certification contains or is based on information that is not correct, must immediately after the date of discovery of the error notify in writing all persons to whom the certification was given by the exporter or producer of any change that could affect the accuracy or validity of the certification.
(c) Maintenance of records—(1) General. An exporter or producer in the United States that signs a certification of origin for a good exported from the United States to Chile must maintain in the United States, for a period of at least five years after the date the certification was signed, all records and supporting documents relating to the origin of a good for which the certification was issued, including records and documents associated with:
1. (i) The purchase of, cost of, value of, and payment for, the good;
2. (ii) Where appropriate, the purchase of, cost of, value of, and payment for, all materials, including recovered goods and indirect materials, used in the production of the good; and
3. (iii) Where appropriate, the production of the good in the form in which the good was exported.
4. (2) Method of maintenance. The records referred to in paragraph (c) of this section must be maintained in accordance with the Generally Accepted Accounting Principles applied in the country of production and in the case of exporters or producers in the United States must be maintained in the same manner as provided in § 163.5 of this chapter.
5. (3) Availability of records. For purposes of determining compliance with the provisions of this part, the exporter's or producer's records required to be maintained under this section must be stored and made available for examination and inspection by the Center director or other appropriate CBP officer in the same manner as provided in part 163 of this chapter.