No H-1B cap. No lottery. No PERM. But to qualify for TN status, your job duties must clearly align with one of the 63 USMCA-listed occupation categories — and in 2025, USCIS tightened its interpretation of several key categories significantly. When the connection between your role and the USMCA occupation list isn't immediately obvious, an independent expert makes the argument clearly and credibly. Field-matched, draft review included.
A TN visa expert opinion letter is a formal written statement from an independent credentialed expert — providing an independent assessment of how the beneficiary's qualifications and the offered position align with a specific USMCA occupation category. It is submitted as supporting documentation in TN petitions filed with USCIS or presented to CBP at a port of entry.
The TN visa is one of the most practical work authorisation pathways available to Canadian and Mexican professionals — no annual cap, no lottery, and no PERM labour certification. But it is available only for the 63 specific professional occupations listed in Appendix 1603.D.1 of the USMCA. The challenge is that these categories were written in 1994 and many modern job titles, hybrid roles, and emerging disciplines do not map neatly to the list. When a CBP officer or USCIS adjudicator is not immediately clear how a role qualifies — or when the 2025 guidance has narrowed the interpretation of the applicable category — an expert opinion letter provides the independent industry context that documents the alignment specifically.
Following June 2025 USCIS guidance, the interpretation of several key TN categories has been tightened — particularly Computer Systems Analyst, Scientific Technician/Technologist, and Management Consultant. The guidance also confirmed that experience can no longer substitute for degree requirements in most categories. A proactively prepared expert letter, included in the petition package or port-of-entry application, addresses these concerns before they become denial grounds.
Every letter is built around the specific role, the employer, and the USMCA occupation category being relied on — always case-specific, never templated.
TN applications — particularly for Canadian citizens applying at the border — do not go through the same RFE process as USCIS-filed petitions. A CBP officer who is not convinced can deny on the spot. Getting the documentation right the first time is critical.
The most common use case. "Software Engineer" maps to "Computer Programmer." "Data Scientist" may qualify under "Computer Systems Analyst" or "Mathematician." "Marketing Strategist" may qualify as "Management Consultant" in some contexts. An expert letter documents why the specific role genuinely qualifies under the applicable USMCA category.
Many modern positions cross disciplinary boundaries. A product manager with an engineering background, a technical consultant who also manages teams, or a biotech researcher whose title doesn't match standard USMCA categories — all benefit from expert documentation of the primary qualifying occupation and how the role's duties align with the USMCA standard.
The Management Consultant category is the most scrutinised TN category. USCIS and CBP require genuine consulting engagement — not just any management role. An expert letter documents the professional expertise, the consulting nature of the engagement, and the substantive professional qualifications that justify the classification.
Following the June 2025 guidance, the Computer Systems Analyst category has been more narrowly interpreted. Roles previously accepted under this category may now require more specific documentation of alignment. An expert letter addresses the specific duties, systems being analysed, and why the role falls within the current USCIS interpretation.
Canadian citizens apply for TN status directly at the border — no prior USCIS filing required. A CBP officer reviews the application on the spot and can deny without an opportunity to respond. Including a proactive expert opinion letter in the port-of-entry package significantly strengthens the case before the officer even asks a question.
TN extensions and changes of status filed with USCIS (for beneficiaries already in the U.S.) go through a standard adjudication process where RFEs are possible. An expert letter is particularly valuable for extensions where the occupation classification has been previously questioned, or for changes of status from another nonimmigrant category.
Provide the job description, the USMCA occupation category you are relying on, the beneficiary's educational background, and any specific documentation concerns. We review and prepare a shortlist of field-matched independent experts — you select the one whose profile best fits the role.
Our team works with the assigned expert to prepare your letter — documenting the occupation category alignment, the beneficiary's qualifications, and the industry context. Built for the specific role and the specific USMCA category. Not a template.
You receive the draft letter for review before it is finalised. If any details need adjustment to more accurately reflect the role's duties or the qualification argument, we revise accordingly. Your approval is required before the final letter is issued.
Your completed TN expert opinion letter is delivered digitally with the expert's full credentials. Standard delivery in 7–10 business days. Rush available in 48 hours.
TN port-of-entry applications for Canadian clients can be denied on the spot — no RFE. When the occupation category connection needs independent industry documentation, we prepare the expert letter for your client's package. Draft review included. Rush available in 48 hours.
Apply Now →For Canadian and Mexican professionals, TN is often the fastest path to U.S. work authorisation — no cap, no lottery, no PERM. But the role must genuinely qualify under USMCA. We document that alignment independently, supporting the application your attorney files or the package presented at the border.
Apply Now →Modern job titles rarely match the 1994 USMCA occupation categories exactly. An expert letter bridges that gap — documenting why your specific role and qualifications genuinely align with the applicable USMCA category. Prepared for your application package, for review before filing.
Apply Now →Every TN letter is prepared by a vetted independent expert whose professional background aligns with the specific occupation category and industry at issue — providing the kind of credible, field-grounded assessment CBP and USCIS look for in USMCA occupation qualification documentation.
TN petition, CBP border application, or USCIS change of status — we prepare the expert documentation your application requires. Field-matched, draft review included.
"Clear, specific documentation of the occupation alignment question. The expert understood the role immediately. Incorporated directly into the port-of-entry package."
— HR Manager · TN Visa Application, Technology Sector