Read the general eligibility basics overview
Hypothetical example: Rodrigo is a Mexican citizen who has held Canadian permanent residence for four years and works as a civil engineer for an irrigation contractor in Lethbridge County. He assumes his PR card is what matters for a U.S. offer. It is irrelevant. TN is open to Mexican citizens as well as Canadians, so his nationality qualifies him; what his nationality changes is the procedure, because a Mexican citizen must obtain a TN visa at a U.S. consulate before travelling rather than applying at the port of entry.
Permanent residence is not the fact that decides TN; citizenship is
TN classification is available only to citizens of Canada or Mexico. A permanent resident of Canada who is a citizen of a third country has no TN route at all, whatever his profession. Rodrigo's position is different because his passport is Mexican, and Mexican citizens are eligible in their own right. His Canadian PR card proves where he is entitled to live; it is not a credential for U.S. purposes and should not be presented as though it were. The engineering profession is on the USMCA list, requiring a baccalaureate degree or a state or provincial licence, so Rodrigo qualifies on his degree or on his Alberta professional engineering licence if he holds one. What remains is to follow the procedure that applies to his passport.
A Mexican citizen applies for a TN visa at a consulate before travelling
Canadian citizens may present themselves at a port of entry with their documents. Mexican citizens must first obtain a TN visa from a U.S. embassy or consulate, submitting the online nonimmigrant application, paying the visa fee, and attending an interview with the employer letter, proof of the engineering qualification and proof of Mexican citizenship. Rodrigo may apply at a consulate in Canada as a resident there, subject to appointment availability, and the employer should plan the start date around that step rather than around a border trip. Once the visa is issued he is admitted at the port of entry for the period of employment. If his wife is also a Mexican citizen she applies for a TD visa at the same time; TD permits study, not employment. The employer letter must describe engineering duties, an employee relationship and a fixed period.
Plan the Canadian side so the U.S. job does not cost him what he already has
Rodrigo should also think about his Canadian permanent residence, which carries a residency obligation of its own; a multi-year U.S. assignment can affect it, and that is a Canadian question to put to a Canadian adviser before accepting. He should keep his Mexican passport valid for the full period, because it is the document that supports his TN status. If the offer is with an engineering firm that would place him at a client site, the employer letter should make clear that the firm employs and pays him. If he later becomes a Canadian citizen, his procedural path changes to the port-of-entry route; the eligibility itself does not change because both nationalities qualify. His route is his own; a Canadian-citizen colleague with the same job has a different procedure but the same legal test.
What else is on your mind?
Does Canadian permanent residence give me access to TN?Is a matching job title enough for TN?Can years of experience replace a degree for TN?Can my own U.S. company employ me under TN?Editorial source review: 2026-09-07. General preparation guidance, not an individual assessment.