Who qualifies for TN status
The TN visa is a nonimmigrant classification created under the US-Mexico-Canada Agreement (USMCA, formerly NAFTA). It is available only to citizens of Canada and Mexico — not permanent residents of those countries. The applicant must be employed in one of the approximately 63 listed professional occupations, which include accountants, engineers, computer systems analysts, lawyers, physicians (research/teaching only), nurses, scientists, and many others. A full list is in Appendix 2 of the USMCA Schedule.
Each TN category has specific educational requirements. For most engineering and science roles, a bachelor's degree in the relevant field is required. For accountants, a professional CPA license may suffice. For certain scientific roles (e.g., chemist, geophysicist), a baccalaureate degree in the specific discipline is required — a related field may not qualify. The job duties must directly align with the TN category.
Canadians: apply at the US border
Canadian citizens apply for TN status at a US port of entry — no prior visa or petition filing with USCIS is required. Present to CBP: a letter from the US employer detailing the position, the TN category, description of duties, anticipated length of employment, and salary; evidence of Canadian citizenship (passport); and relevant educational credentials (degrees, transcripts, professional licenses). CBP adjudicates on the spot. If approved, TN status is granted for up to 3 years and can be renewed.
Mexicans: consular visa required
Mexican citizens cannot apply at the border — they must obtain a TN visa stamp at a US embassy or consulate in Mexico. The documents required are the same as for Canadians, but the process involves scheduling a DS-160 application and consular interview (the $185 MRV fee applies). Once the visa is issued, Mexicans enter the US at CBP and present their TN visa for admission, typically for 3 years.
Related Questions
Can TN workers apply for a green card?
TN is a nonimmigrant status and technically does not have 'dual intent' — meaning TN holders are presumed to have nonimmigrant intent. In practice, some TN holders pursue green cards (typically EB-2/EB-3 via employer sponsorship), but there is risk that filing an I-140 could complicate future TN extensions or border entries. Consult an immigration attorney before pursuing a green card while on TN.
How many times can TN be extended?
There is no maximum number of extensions or total time limit for TN status. Each admission is granted for up to 3 years and can be renewed indefinitely — unlike H-1B which has a 6-year cap (absent a pending green card).
Can my spouse work in the US on TD status?
Spouses and minor children of TN holders enter on TD (Trade NAFTA Dependent) status, which grants lawful nonimmigrant status but does not include work authorization. TD holders cannot work in the US without obtaining separate work authorization.
What happens if my TN application is denied at the border?
CBP may deny TN if the documentation is insufficient or the position does not qualify. You typically receive a written notice and can reapply immediately with corrected documentation at the same or different port of entry — there is no mandatory waiting period.
Are computer systems analysts and software developers the same TN category?
Computer Systems Analyst is the listed TN category. Whether a 'software developer' role qualifies depends on the actual job duties — if duties align with systems analysis, design, and implementation, it may qualify. CBP officers exercise discretion; a well-drafted employer letter describing qualifying duties is essential.
Official Sources
This guide is general information, not legal advice. Fees and processing times change; always confirm with the official government source before acting.