Where can you get NAFTA Certificate of Origin forms?

Form 434, the North American Free Trade Agreement Certificate of Origin, is available online by clicking the Forms link at the bottom of the CBP.gov home page, according to the U.S. Customs and Border Protection Agency. Individuals can enter Form 434 into the search box on the CBP Forms page.

Form 434 contains the Certificate of Origin and Form 434A is the continuation sheet, as indicated on the CBP Forms Web page. The NAFTA Certificate of Origin is a form agreed on between the countries of Mexico, the United States and Canada that ensures the goods bearing the certificate qualify for the preferential tariff treatment NAFTA provides.