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North American Free Trade Agreement (NAFTA) Certificate of Origin

Before you begin to fill out the NAFTA Certificate of Origin form you should have the following information

  • Determine when to use Certificate of Origin ( Form 434 )
  • Have the exporter's tax identification number* and address
  • Have the producer's tax identification number and address
  • Have the importer's tax identification number and address
  • Find your HS classification number
  • Determine your preference criterion

* What is the Tax Identification Number?

  • Canada: the employer number of importer/exporter assigned by the Canada Customs and Revenue Agency;
  • Mexico: the federal taxpayer’s registry number (RFC);
  • United States: the employer’s identification number or Social Security Number.

With this information you can fill out the NAFTA Certificate of Origin.


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