A bill of goods from the seller to the buyer. In order to claim NAFTA preferential tariff treatment on commercial importations valued at less than US1000 C1600 importers must have certification of origin in the form of a statement either included in the invoice or attached to the invoice. 5 Pdf Nafta Certificate Of Origin Template 44695 In Free Nafta Certificate Template Certificate Templates Templates Free Gift Certificate Template A commercial invoice is an international shipping document provided by the supplier to the customer detailing the type and value of goods sold. . This is a trilaterally agreed upon form used by Canada Mexico and the United States to certify that goods qualify for the preferential tariff treatment accorded by NAFTA. Among industry classification systems Harmonized System HS Codes are commonly used throughout the export process for goods. Shipments imported to the US. The description should be su