You may be eligible for TN nonimmigrant status, if:

• You are a citizen of Canada or Mexico;
• Your profession qualifies under the regulations;
• The position in the United States requires a NAFTA professional;
• You have a prearranged full-time or part-time job with a U.S. employer; and
• You have the qualifications to practice in the profession in question.

If you are inside the United States you can adjust status to TN classification through a petition to the U.S. Citizenship and Immigration Service.

If you are a Canadian citizen, then you are not required to apply for a TN visa at a U.S. consulate. You may establish eligibility for TN classification at the time you seek admission to the United States by presenting required documentation to a U.S. Customs and Border Protection (CBP) officer at certain CBP-designated U.S. ports of entry or at a designated pre-clearance/pre-flight inspection station.

If you are a Mexican citizen, then you are required to obtain a visa to enter the United States as a TN nonimmigrant. You should apply for a TN visa directly at a U.S. embassy or consulate in Mexico. 

The TN classification is valid for up to three years and can be renewed indefinitely.  Please note that individuals in the Management Consultant occupational category will only have valid status for one year.