Read the general professional work overview
An employer letter drafted months ago may describe a version of a project that no longer matches the work you would actually perform. Before the letter is finalized, compare it line by line with the current duties, deliverables and timeline. Ask the employer to describe the position as it stands on the date of signature, in a dated document, rather than adjusting an older text so that it appears unchanged.
Compare the letter against the work as it now stands
Place the draft letter beside the current statement of work, project charter or change orders. List each duty, deliverable, reporting line, location and end date, and mark anything that describes a superseded phase. Note where the work has narrowed as well as where it has grown; both are differences a reviewer may ask about. The TN question turns on the duties you would actually perform and on the profession-specific credentials required for the profession claimed, not on the name of a project. Keep the earlier draft and the corrected version, each dated, so the sequence of revisions remains visible. TN also requires Canadian or Mexican citizenship, prearranged qualifying professional employment and temporary entry. A degree from an institution outside Canada, Mexico and the United States requires a reliable foreign-credential evaluation.
Ask for a current letter instead of a re-dated one
If the description is out of date, the employer should issue a new letter dated when it is signed and stating the position as of that date. Do not ask anyone to re-date a document or to describe a past phase as though it were ongoing. Where scope changed, say when and why, and keep the internal records that show it. If any of those records are in French, remember that translation and explanation are separate needs: a foreign-language document filed with USCIS requires a full certified English translation attesting to accuracy, completeness and the translator's competence. Confirm the requirements of the specific procedure before ordering services.
Test whether the current description still fits the profession claimed
Hypothetical example: an applicant living in Boisbriand holds a letter describing a data-migration phase that closed last year, while the assignment now offered is ongoing maintenance and user support. Ask which duties would remain, whether those duties still correspond to a listed profession, and whether your credentials meet that profession's specific requirements. Ask a further question the letter will not answer on its own: who receives the services. If the U.S. entity is one you own outright or control, the proposed services constitute prohibited TN self-employment even where your controlling holding is below a majority, and naming a supervisor does not resolve it.
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.