Only the actual proposed activity and the relevant profession’s requirements can support that assessment.
Identify which duties belong to this position
Ask the employer to identify the tasks assigned to the applicant, including any mixed responsibilities. A broad attachment should not be treated as evidence that the applicant performs every listed professional role.
Begin with a position-specific duty table: mark which tasks the person will perform, their approximate importance, and the deliverables the employer expects. Then compare that real assignment with one listed USMCA profession and that profession’s exact education, licence, or experience rule. TN requires Canadian or Mexican citizenship, not Canadian permanent residence, plus prearranged professional work in the United States for a U.S. entity through a U.S. or foreign employer. It does not permit US self-employment, so disclose ownership or control instead of treating a department description as proof. The frequent error is choosing the most favourable title while ignoring substantial duties from another role. Once the employer confirms the assignment, a Canadian may generally present the case at a port of entry or the US employer may file Form I-129.
Hypothetical example: A Saint-Ambroise forestry consultant receives an attachment covering foresters, technicians, and sales representatives. Her employer identifies that she will analyze forest inventories and prepare professional recommendations, not sell machinery or perform routine field sampling. She checks those duties and her degree against the applicable listed profession, records the temporary engagement, and removes nothing merely because it complicates the analysis. That focused account can be assessed; the department-wide label alone cannot establish TN eligibility.