An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

  1. Home
  2. Trade
  3. What to Expect From a NAFTA Verification

What to Expect From a NAFTA Verification

This brochure has been provided in order to give the reader a better understanding of the verification process under the North American Free Trade Agreement (NAFTA) and is for informational purposes only.

Authority to Conduct Verifications

Article 506 of the North American Free Trade Agreement (NAFTA) sets out the authority for each Party to the Agreement (Canada, Mexico and the United States) to conduct verifications of the books and records of exporters and/or producers located in the territory of another Party. The exporters and/or producers that may be subject to such a review are those whose goods have been certified as originating by means of a Certificate of Origin and for which preferential duty treatment has been claimed.

Objective of NAFTA Verifications

The overall objective of an exporter or producer verification is to confirm that products covered by a Certificate of Origin completed by the exporter or producer qualify as originating in accordance with the NAFTA.

The NAFTA allows each Party's customs administration various methods for determining if a good certified as originating qualifies by meeting the NAFTA rules of origin requirements. Such methods may include written questionnaires to be completed by the exporter or producer, verification letters requesting information from the exporter or producer and visits to the exporter's or producer's premises. A verification could be conducted by any or all of these methods.

Verification Program Objectives

The verification program objectives are as follows:

  • Non-qualifying operations - To ensure that a good is not considered to be originating, because of mere dilution with water or another substance, or because of a production or pricing practice designed to circumvent the rules of origin as set out in Chapter 4 of the NAFTA.
  • Transshipment - To verify that an originating good (1) is not withdrawn from customs control outside the territory of the NAFTA countries, and (2) does not undergo further production or any other operation outside the territory of the Parties other than unloading, reloading, or any other operation necessary to preserve it in good condition, such as inspection, removal of dust that accumulates during shipment, ventilation, spreading out or drying, chilling, replacing salt, sulphur dioxide or other aqueous solutions, replacing damaged packing materials and containers and removal of the units of the good that are spoiled or damaged and present a danger to the remaining units of the good, or to transport the good to the territory of the importing Party.
  • Tariff classification change - To ensure that all non-originating materials used in the production of a good are sufficiently transformed in the NAFTA territory so as to undergo the necessary tariff classification change as required by the specific rule of origin applicable to a good, and to ensure that the finished good and the non-originating materials are properly classified.
  • Regional value content - To verify that the regional value-content requirement, calculated using either the transaction value method or the net cost method, has been met.
  • Tariff Treatment - To verify that the rate of duty applied to importations of a good is correct.

Verification Scope

The scope includes: a) the verification period, and b) the goods subject to verification.

The verification period is established upon initiation of the verification. The exporter is responsible for keeping the records relating to the origin of goods for at least 5 years after the date the Certificate of Origin was signed.

  1. The scope of the verification will be those goods certified as originating by the exporter, for which NAFTA preferential tariff treatment was claimed upon importation into the territory of the Party.


The location(s) of the verification(s) may include the site where the goods or materials were produced, the place where the records are stored, and/or the site from which the goods or materials were distributed.


The NAFTA stipulates that the exporter or producer who is subject to an origin on -site verification visit, has the right to designate two observers to be present during the visit. The designation of observers is permitted provided that the observers do not participate in the verification other than as observers and that the failure of the exporter or producer to designate observers does not result in the postponement of the visit.


The exporter and/or producer will be provided a written origin determination as to whether the good reviewed qualifies as originating based on the results of an origin verification, in accordance with Article 506(9) of the NAFTA. If it is determined that the good does not qualify as an originating good, the written determination will include a statement of the right of the exporter and/or producer to submit a response to the determination within a specific period of time before the determination will take effect.

Confidentiality of Business Information

Article 507 of the NAFTA requires that confidential business information collected from the exporter and/or producer be regarded as protected, and be used only for the administration and enforcement of determinations of origin, and of customs matters.

Last Modified: Mar 06, 2024