Read the general professional work overview
A TN file for a Lévis applicant rests on four claims: Canadian citizenship, a prearranged professional position with a U.S. employer, a fit between that position and one Appendix 2 listing, and the qualification that listing names. Each claim has one document that decides it, and the guide below assigns them so nothing is proved twice and nothing is left to the officer's inference. Assemble originals, keep the letter consistent with them, and be ready to explain every page without reading from it.
Citizenship and employer: the two easy claims, done properly
A valid Canadian passport settles citizenship; carry it, not a card or a photo. The employer claim is settled by a letter on the U.S. company's letterhead, signed by someone with authority, naming the legal entity that will pay the salary and the site where work happens. Hypothetical example: a Lévis composite-materials technologist is engaged through a U.S. staffing agency to support an aerospace supplier's engineers. The agency is the employer for TN purposes, so its letter is the one that counts, and the supplier's site is disclosed as the work location. A letter from the supplier alone would name the wrong employer, and a technologist who invoices through her own Lévis company would be self-employed, which TN does not permit.
Listing fit: the claim the letter must argue, not assert
The letter should name the Appendix 2 occupation and describe duties in language that maps onto it. For a scientific technician or technologist, the listing expects theoretical knowledge of a named discipline and work in direct support of a professional in that discipline. The letter therefore names the supervising engineer, describes the support tasks, and avoids claiming the technologist will independently certify designs, which would be an engineer's work under a different qualification rule. The duty description is the document that decides fit; a title is not evidence, and a letter that contradicts the job posting the officer can find online is worse than no letter.
Qualification: match the credential to the listing's exact wording
For Scientific Technician/Technologist, Appendix 2 does not prescribe a diploma. It requires theoretical knowledge of agricultural sciences, astronomy, biology, chemistry, engineering, forestry, geology, geophysics, meteorology or physics; the ability to solve practical problems in one of those disciplines or apply its principles to basic or applied research; and work in direct support of a professional in one of those same disciplines. A relevant college diploma and transcript can help prove the theoretical-knowledge element, while dated employer letters can document the practical work. Use certified translations for French records the officer must read. Bring originals, keep a scan, and list every document in a one-page index.
What else is on your mind?
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?Can my spouse work if I hold TN status?Editorial source review: 2026-09-07. General preparation guidance, not an individual assessment.