Read the general professional work overview
Hypothetical example: a Hanwell medical laboratory technologist is offered a position at a hospital laboratory across the border. The profession is listed in the USMCA appendix, but the listing sets its own qualification test and any destination-state licensing requirements apply separately. Decide which qualification alternative establishes eligibility, obtain the evidence for it, and treat any state licensure process as parallel to rather than part of the immigration question.
Identify the qualification alternative you are actually using
The medical laboratory technologist listing accepts a baccalaureate or licenciatura degree, or alternatively a post-secondary diploma or certificate together with three years of experience. The file should say plainly which alternative applies and prove that one. Where experience is relied on, it needs evidence of its own: dated employment letters describing the laboratory work actually performed, payroll records covering the period, and confirmation of full-time hours. A general character reference from a supervisor will not carry it. Where a credential was issued outside Canada, Mexico or the United States, add a reliable credential evaluation; where a record is not in English, add a certified English translation with the translator's certification of competence and accuracy. Settle this before the employer writes the offer letter, because that letter should name the qualification being relied on.
Keep the immigration test and the state licence apart
Meeting the appendix qualification establishes eligibility for the category. It does not authorize anyone to practise. Some states require laboratory personnel to be licensed or registered, and an employer may require licensure or certification before confirming a start date. Determine the destination state's rules and the employer's requirements; either process has its own evidence and timing. Ask the employer which credential the role requires, apply for it early if necessary, and keep the immigration and professional-practice files separate. Arriving with valid status but without a required licence or certification can prevent the person from starting work even though the immigration step succeeded.
Make the offer letter describe professional laboratory work
The letter should state the position, describe the professional duties in order of importance, name the qualification relied on, state the salary, and give the intended period and location of employment. Duties that read as general technical assistance invite the conclusion that the position is not the listed profession at all. Add the employer's corporate details, and disclose any ownership interest the applicant holds in that employer, since self-employment in the United States is not permitted under this category. Carry proof of Canadian citizenship, a passport or a citizenship certificate, because permanent residence in Canada does not support the route. A Canadian citizen may apply at a Class A port of entry or designated preclearance location without obtaining a TN visa stamp, or the U.S. employer may file Form I-129 in advance. A spouse or unmarried child under twenty-one in TD status may study but may not work. Bring the licence file too, even though it is not the immigration test.
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.