Describe the full assignment
Hypothetical example: an offer provides for initial sample collection followed by geological interpretation, with general site duties during delays. Record the tasks, responsibility and expected duration of each phase. Do not assume every field activity is professional geology or omit the work performed while analysis is postponed. Hypothetical example: a Canadian urban planner is engaged to prepare zoning maps, but the client later asks her to supervise crews moving traffic barriers for several weeks. The review should identify the planner’s responsibility for each task and decide whether the interim work belongs in the proposed professional role. Omitting it can make the supporting letter unreliable.
Identify the listed degree
The TN geologist entry lists a baccalaureate or licenciatura degree. Provide the actual credential and relevant supporting records rather than substituting general field experience. Degrees from institutions outside Canada, Mexico and the United States require reliable foreign-credential evaluation. The job and qualification require assessment together. Compare the transcript, award document and any evaluation with the precise listed occupation before commissioning extra evidence. The decision is whether the record establishes the required qualification, not whether the applicant has accumulated impressive but unrelated courses. If a regulated activity is part of the proposed work, identify the applicable authorization separately.
Keep the employer and stay facts current
Identify the employer, receiving entity, remuneration and intended period. TN may involve a U.S. or foreign employer, but sole or controlling ownership of the U.S. entity receiving the services is prohibited self-employment. A temporary-entry account should reflect the actual proposed stay, including changes rather than an assumed indefinite authorization. A Canadian citizen may request TN status at a port of entry, or a U.S. employer may file Form I-129 with USCIS; Canadian TN applicants generally do not need a visa stamp. TD status permits study but forbids employment. Choose the procedure after the facts are settled: a Canadian applicant may request admission at a U.S. inspection point, while an employer may pursue a petition using Form I-129. The classification cannot be used to operate a business that the professional controls. Preserve the signed engagement, ownership records and updated duties so the route selected matches the actual arrangement.
Sources reviewed 2026-09-07. This guide covers a preparation focus; it is not an individual eligibility assessment.