Read the general professional work overview
Hypothetical example: A Torbay geologist offered a position with a U.S. mineral-exploration company has one of the cleaner TN profiles, since Geologist is listed with a baccalaureate degree as the qualification. Files still fail, and they fail for reasons visible in advance: a letter that describes field-crew supervision rather than geology, a degree in a related science with no explanation, an open-ended role that reads as permanent, or a consulting arrangement through the geologist's own company. This guide walks through each failure and how to prevent it. The practical decision is whether the evidence describes a geologist employed to perform professional geology, or a person arriving to manage a project or serve a client through a controlled company. A first review should produce a final employer-letter checklist, a degree-and-transcript packet, citizenship proof and a clear temporary term. Canadian applicants can request TN admission through inspection, while an employer may also seek USCIS approval with an I-129 petition; neither path lets the professional operate a U.S. business for themself.
Failure one: the letter describes the wrong job
Hypothetical example: a Torbay geologist with a bachelor's degree in earth sciences and several seasons of exploration work is hired to lead drilling programs in the western United States. The employer's first draft letter emphasizes managing drill crews, logistics and budgets. An officer reads that as management, not geology. The corrected letter leads with the professional work: designing sampling and drilling programs, logging core, interpreting structural and geochemical data, preparing resource reports. Crew coordination can be mentioned as incidental. Ask the employer for the draft early, and treat it as the document the whole application depends on. Keep the employer's letter consistent with the project scope, contract and reporting line. If the company needs both geology and project management, say which duties occupy the professional's time and which are incidental. The decision is whether the actual proposed work can honestly be presented under the listed profession before travel is booked.
Failure two: the degree does not say geology
The Appendix 2 entry for Geologist requires a baccalaureate or licenciatura degree. A degree titled earth sciences, geoscience or environmental science can satisfy it, but the officer should not have to guess. Include the transcript and highlight the geology coursework, and if the employer's letter can state that the degree is in geology or a closely related field with the relevant content, that helps. A Torbay geologist registered as a professional geoscientist in the province should include that registration as supporting evidence, although the entry does not require a licence. Permanent residents cannot use TN, so the passport establishing Canadian citizenship is essential. Hypothetical example: a Torbay hydrogeologist holds a degree titled environmental earth systems and is hired to evaluate groundwater at a U.S. industrial redevelopment site. The transcript, course descriptions and a concise employer explanation can connect the degree to geology. The reader must decide whether that record plainly meets the degree requirement; if it does not, obtain the missing academic evidence before relying on a broad job title.
Failures three and four: permanence and self-employment
TN is a temporary classification. A letter offering a permanent position, or one that describes a path to partnership, invites refusal even though renewals are possible; the letter should state a defined term, which may be up to three years. Separately, a geologist who has been contracting through a personal corporation must not present the U.S. work as that corporation's contract with the client; TN requires employment by a U.S. entity and does not permit self-employment or work for a company the applicant controls. If the U.S. company insists on a contractor arrangement, that is a reason to reconsider, not a detail to paper over. Apply while still employed in Canada, and give notice only after admission. TD dependants may study but not work. A defined term should match the employer's genuine project need, not be inserted as an afterthought beside a permanent offer. If the engagement is through an intermediary, identify the actual employer and who controls the work. That check prevents a contractor relationship or controlled U.S. business from being represented as qualifying 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.