Read the general professional work overview
A Saint-Isidore applicant may receive an offer from a technical or professional department whose name says little about the actual position. Build the TN assessment around the services the person will perform. Start by making a position-and-credential comparison table: proposed duty, expected output, related listed profession, required qualification and document that proves it. Hypothetical example: a fire-protection engineer receives an offer from a general safety department; the decision is whether the described engineering duties and the applicant’s actual credential support the proposed TN profession, not whether the department sounds professional.
Describe the work in practical terms
Ask the employer to identify the outputs, responsibilities and actual assignment. Hypothetical example: two people work in the same department, but one performs the proposed professional services and the other has a different role. Do not treat the department label as proof that every position fits the same TN profession. Request a duty list that can be tested against the actual assignment, including who supervises the work, what deliverables are expected and whether the employee will perform professional services rather than administrative support. If the list changes the occupation, resolve that change before preparing a letter around a category label.
Match the individual to the listed profession
The applicant must be Canadian or Mexican and satisfy the profession’s prescribed qualifications. A general technical background is not a universal substitute for the specified credential. Degrees from institutions outside Canada, Mexico or the United States need reliable foreign-credential evaluation; translation alone does not provide it. Match each qualification to the profession’s rule and preserve the credential, transcript, licence where relevant and any evaluation needed for foreign education. A credential evaluator assesses the education presented; it does not repair an offer whose duties do not fit the claimed profession.
Keep the employer’s real arrangement visible
Identify compensation and the intended temporary period, and explain the entity receiving the services. TN prohibits services to a U.S. entity solely owned or controlled by the applicant. A useful support letter describes the actual professional work rather than adding a preferred category name to unrelated duties. Choose the process only after the employment relationship is clear. A Canadian applicant may present a TN case at an eligible inspection location or preclearance facility, while USCIS may receive an employer-filed I-129 petition in the applicable circumstances. The work must be for an employer: a self-employed arrangement cannot qualify merely because a company letter calls it employment.
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.