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What is the ‘Annex 1603’ of NAFTA?

NAFTA''s Annex 1603 details professional categories and requirements for TN visas, ensuring uniform criteria and security in the US immigration process.

Written by

Victoria Harper

Editor-in-Chief

Updated on December 27, 2025
2 min read
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The North American Free Trade Agreement (NAFTA) was an important initiative that facilitated the mobility of professionals among the signatory countries. Within this context, there is a document called “Annex 1603” which gathers essential details about qualifications and rules for certain eligible professions, including those that fall under the TN visa.

In practical terms, the “Annex 1603” of NAFTA is an annex that specifies, among other aspects, which professional categories are included and the criteria related to education, experience, and licenses required for a professional to be considered eligible to work temporarily in the United States. This instrument functions as a guide for immigration officers, helping to ensure that candidates present the required documentation and prove that they meet the standards established by the agreement.

Besides the technical requirements related to academic training and professional experience, the annex also includes details that help standardize the criteria among member countries, ensuring that professionals are evaluated based on standardized parameters. This benefits not only transparency during the verification process but also mutual trust among the signatory nations when granting work authorizations such as the TN visa.

It is important to emphasize that, although this annex provides clear guidelines, U.S. immigration regulations can undergo updates and interpretations that adjust to the market reality and government policies. Therefore, it is always prudent to seek updated information through official sources and, if necessary, consult professionals specialized in the subject.

Be cautious of promises of results and service offers that guarantee visa approvals without proper legal foundation, because compliance with the laws is essential for a smooth and safe process. Staying well informed and following U.S. immigration rules helps avoid complications and possible scams that can result in losses.

Remember: seeking correct information and consulting reliable specialists are fundamental steps for those wishing to advance in processes related to the TN visa and other immigration categories.

Learn more about TN Visa

Eligible countries
Canada & Mexico (USMCA)
Duration
3 years
Extension
Unlimited (3 years each)
Processing
At the border or consulate
All about TN Visa
Victoria Harper

Editor-in-Chief

Meet the author

Leading journalism and editorial content at Visto n’ Visa, Victoria helps make immigration topics clear, trustworthy, and easy to understand. Her focus is on delivering useful, human, and relevant content for people exploring new paths abroad.

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What is the ‘Annex 1603’ of NAFTA?

NAFTA''s Annex 1603 details professional categories and requirements for TN visas, ensuring uniform criteria and security in the US immigration process.

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