The importer may pay the non-preferential duties at the time of customs clearance of the goods and then has a maximum period of one year from the date on which the goods were imported to claim reimbursement of customs duties overpaid as a result of the non-payment of the goods. This can happen when the information necessary to determine that the goods are originating is not available at the time of shipment. At the time of application for refund, the importer must provide a written declaration on the originating status of the goods and, if the customs authority so requests, a certificate of origin or any other indication that the product is considered to be originating; and other documents relating to the importation of the case that the customs authorities may require. „Chile has strong markets and its impressive economic performance over the past decade has been fostered by decades of trade liberalization policy, political stability, and commitment to democratic institutions.“ — The Heritage Foundation, July 2001 Free certification of Chilean producers and exporters can be used as an alternative to the certification of origin model. and U.S. importers who certify that their products comply with the requirements of the Chilean Free Trade Agreement. If one of the parties to the operation finds, after the presentation of an origin declaration to Chilean customs, that the declaration or certificate has been drawn up on the basis of false information or contains an error, the issuer of the origin declaration must immediately inform in writing any person who originally issued it. . . .