Hypothetical example: Nadia Petrenko is a Canadian citizen and an Ontario land surveyor whose firm has been asked to retrace boundaries along an American rail corridor and around a terminal the railway wants to expand. She holds a provincial licence and a degree, so the profession's own rule is comfortably met. Her file still has two separate problems to solve: what a border officer needs to see, and what a state regulator will require before anyone signs a plan.
Two authorities, two entirely different questions
The Appendix 2 entry for Land Surveyor is satisfied by a baccalaureate degree or by state, provincial or federal licensure, and an officer deciding admission is asking whether Nadia meets that rule and whether the American work is genuinely land surveying. That decision says nothing about whether she may practise. Surveying is a regulated profession in each state, and the right to sign, seal and file survey plans comes from that state's board rather than from an immigration category. Both questions have to be answered before the engagement is accepted, because being admitted to do work she is not licensed to sign helps nobody, and the arrangement she makes to solve the second question must not quietly undermine the first.
Describe surveying, and keep the described scope from drifting
The support letter should name the work in professional terms: retracement of boundaries along the corridor, recovery and analysis of original monuments, control surveys, topographic work for the terminal expansion, and preparation of plans under the supervision arrangements the state requires. What weakens a letter is generic project language - coordination, site oversight, liaison with contractors - because those activities belong to construction management rather than to a listed profession. Scope drift is the specific danger on a long infrastructure job, where a surveyor who arrives to retrace boundaries is gradually asked to run the survey crew, then the schedule. If the work changes materially, the paperwork should change before the next entry, not afterwards.
Every crossing reopens the file, so keep it assembled
Because admission is decided at the port each time, a professional working on a multi-season project presents her case repeatedly rather than once. That argues for a permanent file kept together: the degree parchment and transcript, the provincial licence certificate, proof of Canadian citizenship, the current letter, and any state authorization obtained. Retain superseded letters as well, since a documented change of scope is far easier to explain than an apparent inconsistency discovered by an officer. If the American client wants to retain her firm rather than employ her, the arrangement needs careful review, because the category admits an employee or a person under contract to an American entity that controls the work and does not accommodate setting up in business for oneself across the border.
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.