TN Document Gathering Checklist — What You Need

Why TN Documentation Is Different From Other Work Visas

Unlike H-1B or L-1 visas that require advance USCIS petition approval, the TN visa is adjudicated at the moment you present yourself — either at a U.S. port of entry or a U.S. consulate. The officer reviewing your case sees only what you brought that day. There is no file to pull, no previously approved petition to reference, and no opportunity to mail in a missing document after the fact. If a required credential is absent, the application fails on the spot.

This structure makes the TN one of the fastest work authorization pathways under NAFTA (now USMCA) — Canadian citizens can receive same-day approval at land borders — but it also places full documentary responsibility on the applicant. The checklist below reflects what NAFTA Appendix 1603.D.1 requires and what CBP or consular officers actually evaluate.

The Core TN Document Package

Every TN application, regardless of profession, must include these foundational items:

Valid Passport: Must be valid for the duration of the intended TN stay. Canadian citizens entering by land may use a NEXUS card or enhanced driver's license, but a passport is the universal standard and eliminates questions about identity documents.

Proof of Citizenship: Canadian or Mexican citizenship is the statutory requirement. The passport establishes this, but Mexican nationals applying at a consulate must also present a birth certificate or naturalization certificate. Canadian citizens are not required to show a birth certificate at the border if the passport is presented.

Job Offer Letter on Company Letterhead: This is the single most scrutinized document in the package. It must state the petitioning U.S. employer's name and address, the offered position title, a description of duties, the anticipated length of employment, and the proposed compensation. The letter must be signed by an authorized company representative — typically an HR officer or supervisor. Generic letters stating "to whom it may concern" or unsigned drafts are rejected.

Educational Credentials: The profession listed in NAFTA Appendix 1603.D.1 dictates the required credential. For professions requiring a baccalaureate degree (e.g., engineer, accountant, economist), the applicant must present the actual diploma or an official transcript showing degree conferral. Professions requiring licensure (e.g., registered nurse, physical therapist, attorney) require the license itself in addition to any underlying degree. Credentials earned outside the United States or Canada must be accompanied by a credential evaluation report from an approved agency (NACES or AICE member) demonstrating U.S. equivalency.

Resume or Curriculum Vitae: Officers use this to verify that the applicant's work history aligns with the professional category claimed. The resume should emphasize experience in the TN profession, not unrelated employment.

Application Fee Payment: As of 2026, the I-94 processing fee for TN status at a port of entry is set by CBP; Mexican nationals applying at a consulate pay the DS-160 nonimmigrant visa application fee. Confirm the current fee amount on the CBP or DOS fee schedule before traveling — these amounts change periodically via fee rule.

Profession-Specific Credential Requirements

The 63 professions listed in NAFTA Appendix 1603.D.1 divide into three credential tiers:

Here's the honest answer: NAFTA's degree requirement is strict. The degree must be in the field stated or a directly related discipline — CBP does not accept distant academic connections. An applicant with a degree in biology applying for a computer systems analyst TN will be denied unless the employment involves biological informatics and the job duties map to that overlap. Degree title alone does not control; officers read transcripts to verify coursework alignment.

For licensed professions, the license must be active and in good standing. A lapsed nursing license or a law license on inactive status disqualifies the applicant until the credential is restored.

The Employment Letter — What It Must Contain

The job offer letter is the evidentiary anchor of the TN application. It must establish four statutory elements:

1. The position is temporary. NAFTA defines TN employment as temporary, meaning the position has a defined end date or the engagement is inherently limited in duration. The letter should state the intended period of employment — "two years," "three years," or "for the duration of the project, estimated at 18 months." Open-ended language like "ongoing employment" or "permanent hire" raises immigrant intent concerns and can result in denial.

2. The duties match a listed NAFTA profession. The letter must describe the actual day-to-day responsibilities in enough detail that the officer can verify alignment with Appendix 1603.D.1. A one-sentence job description ("the applicant will work as an engineer") is insufficient. The letter should list specific tasks: "design structural load calculations for commercial buildings," "conduct environmental site assessments under Phase I and Phase II protocols," "prepare financial statements under GAAP for quarterly SEC filings."

3. The applicant meets the credential standard. The letter should reference the credential explicitly: "the applicant holds a Bachelor of Science in Mechanical Engineering from [university], satisfying the credential requirement for the Engineer profession under NAFTA."

4. The compensation is stated. Officers verify that the wage is reasonable for the profession and location. Unusually low compensation relative to the field suggests the position may not be professional-level. The letter should state the annual salary or hourly rate and whether the position is full-time or part-time.

The letter must be printed on company letterhead, dated within 90 days of the application, and signed by a company officer authorized to hire — not by the applicant, not by a third-party recruiter unless that recruiter is the direct employer.

Additional Documents for Specific Situations

Certain fact patterns require supplemental evidence:

For Professions Requiring Licensure in the U.S.: If the TN profession requires a U.S. state license (e.g., registered nurse working in California, attorney representing clients in New York court), the applicant must present the active license issued by that state. A Canadian nursing license alone does not satisfy the requirement for practice in the United States.

For Self-Employment or Contract Work: TN status is available only for employment by a U.S. entity. Self-employed individuals and independent contractors do not qualify. If the work arrangement involves a staffing agency or consulting firm, the applicant must present a contract between the U.S. end-client and the employer, plus the employment letter from the employer (the staffing firm), demonstrating that the employer — not the applicant — controls the work.

For Family Members (TD Dependents): Spouses and unmarried children under 21 may accompany the TN principal in TD status. Each dependent must present proof of relationship (marriage certificate for spouse, birth certificate for child), proof of the principal's TN status or approval, and a valid passport. TD dependents are not authorized to work in the United States.

For Extensions Beyond Three Years: TN status is initially granted for up to three years and may be extended indefinitely in three-year increments. Extensions filed while the applicant is in the United States use Form I-129 submitted to USCIS. The extension application requires the same employment letter and credential documents as the initial TN, plus evidence of continued employment (recent pay stubs, an updated offer letter extending the engagement).

For Credential Evaluations (Foreign Degrees): Degrees earned outside the United States or Canada must be evaluated for U.S. equivalency by a credential evaluation service that is a member of the National Association of Credential Evaluation Services (NACES) or the Association of International Credential Evaluators (AICE). The evaluation report must conclude that the foreign degree is equivalent to a U.S. baccalaureate degree in the relevant field. The report itself — not just the applicant's assertion of equivalency — must be presented at the port of entry or consulate.

The Application Process — Border vs. Consulate

Canadian citizens entering by land often receive same-day approval. Officers at high-volume crossings (Detroit-Windsor, Buffalo-Niagara, Blaine-Surrey) process dozens of TN applications daily and are familiar with the standard professions. Remote crossings or officers unfamiliar with TN procedures may require secondary inspection, adding 30 minutes to two hours to the process. Applicants should allow extra time and avoid arriving at the border late in the day when staffing is reduced.

Mexican nationals must attend a visa interview at a U.S. consulate. Appointment wait times vary by consulate and season — consulates in Mexico City, Monterrey, and Guadalajara handle high TN volume and post their current wait times online. After approval, the TN visa is stamped in the passport, and the applicant may enter the United States. The I-94 arrival/departure record is issued electronically upon entry.

What If My Credentials Are From a Foreign University?

Degrees earned outside the United States or Canada must be evaluated for equivalency by a credential evaluation agency that is a member of NACES or AICE. The evaluation report must state that the foreign degree is equivalent to a U.S. baccalaureate (or higher) degree in the relevant discipline. General statements of equivalency are not sufficient — the report must identify the specific U.S. degree equivalent and the field of study.

Credential evaluation takes two to four weeks depending on the agency and the complexity of the academic record. Order the evaluation early in the TN preparation process, not the week before the border appointment.

What If My Job Title Doesn't Match the NAFTA List?

The statutory test is not the job title — it is the actual duties performed. An applicant whose title is "Business Analyst" may qualify under the Management Consultant profession if the duties involve analyzing business operations and recommending process improvements. The employment letter must describe those duties in enough detail that the officer can map them to one of the 63 listed professions.

Officers do not create new professional categories or accept hybrid roles that span multiple unrelated professions. The position must fit within a single NAFTA profession. If the duties genuinely do not align with any listed category, TN status is not available for that position, and the applicant must pursue a different visa classification (e.g., H-1B).

What If I'm Denied at the Port of Entry?

A TN denial at the port of entry results in withdrawal of the application and return to Canada or Mexico that day. The applicant may reapply with corrected documentation, but there is no formal appeal process for a port-of-entry denial. If the denial was based on a missing document, the applicant may return with the complete package. If the denial was based on a substantive deficiency (degree does not match the profession, duties do not align with NAFTA, immigrant intent concern), the applicant should consult an immigration attorney before reapplying — repeating the same application will produce the same result.

Canadian citizens denied at the border may alternatively apply for a TN visa at a U.S. consulate in Canada, where the consular officer's decision is separate from the CBP denial. Mexican nationals denied at a consulate may reapply at the same or a different consulate with additional evidence addressing the stated ground for denial.

Common Documentation Errors

These deficiencies account for the majority of TN denials:

Employment letter lacks a defined end date. Officers interpret indefinite language as evidence of permanent intent. State a specific period or a project-based duration.

Job duties are described generically. A letter stating "the applicant will perform accounting duties" does not distinguish professional-level work from bookkeeping. List the actual tasks: preparing consolidated financial statements, conducting internal audits under SOX compliance, managing multinational transfer pricing.

Credential does not match the profession. A degree in business administration does not automatically qualify the holder for an Economist TN unless the transcript shows coursework in economic theory, econometrics, and quantitative methods. Officers read transcripts, not just degree titles.

License is inactive or issued by the wrong jurisdiction. A California nursing license does not authorize practice in Texas. An attorney admitted to the bar in Ontario cannot represent clients in U.S. court under a TN unless admitted to a U.S. state bar.

Foreign degree presented without a credential evaluation. The degree certificate alone is not evidence of U.S. equivalency. A formal evaluation report is required.

Supporting documents are not in English. Birth certificates, diplomas, and licenses issued in a language other than English must be accompanied by certified English translations. The translator must certify competency and accuracy; the applicant cannot translate their own documents.

Consulting an Immigration Attorney Before the Border

Let's be direct: TN applications are adjudicated on the spot by an officer who has no obligation to identify what is missing or explain how to fix it. A denied application wastes the trip, delays the start date, and can complicate future applications if the denial is based on a credibility or immigrant intent finding.

An immigration attorney reviews the employment letter for statutory compliance, verifies that the stated duties align with the claimed NAFTA profession, confirms that the credential meets the Appendix 1603.D.1 standard, and identifies gaps in the document package before the applicant arrives at the port of entry or consulate. For cases involving foreign credentials, hybrid duties, or a prior denial, legal review is not optional — it is the difference between approval and a second refusal.

The firm's TN Visa Lawyer service includes employment letter review, credential verification, and preparation for border or consular presentation. A $250 consultation reviews the applicant's specific fact pattern and identifies documentation deficiencies before they become denial grounds.

Disclaimer: This article provides general information about TN visa documentation requirements and does not constitute legal advice. TN eligibility and the sufficiency of specific documents depend on individual facts and the adjudicating officer's evaluation. Reading this article does not create an attorney-client relationship with the Law Offices of Peter D. Chu. Consult a licensed immigration attorney for advice tailored to your situation.

Need Personalized Immigration Guidance? The Law Offices of Peter D. Chu offers comprehensive review of TN applications, employment letters, and credential packages. Contact the firm at 858-268-8823 or visit peterchu.com to schedule a consultation.

Schedule a consultation with the Law Offices of Peter D. Chu — 4615 Convoy St, San Diego, CA 92111 · 858-268-8823 · Mon–Fri, 8:30 AM–5:30 PM. Consultation fee: $250.