IN THIS GUIDE · Preparing for TN inspection and checking the admission record afterward
Start with the TN eligibility and application overview
Confirm the application and travel setting
Before choosing travel, establish which route applies to the applicant’s nationality, location, and history. Qualifying TN work still requires Canadian or Mexican citizenship, a listed profession, appropriate credentials, prearranged employment, and temporary purpose. Canadian applicants may have a direct admission route; Mexican applicants generally need the relevant visa first. Check current CBP instructions for the intended port or designated preclearance location. Flight departure time is not a substitute for understanding the inspection process.
Make the packet usable during inspection
Organize citizenship and travel documents, the employer’s factual letter, and qualification evidence so that a question can be matched to its supporting record. Include relevant petition approval materials if that route was used. Keep a saved copy of the submitted version for later reference. Review the duties and dates with the employer before travel, including who can answer factual questions. Preparation means understanding the real assignment, not learning a scripted answer designed to obscure mixed duties or inconvenient facts.
Allow decisions to follow the facts
Answer questions accurately and distinguish facts you know from matters that need clarification. If the employment arrangement changed after the packet was prepared, obtain a review before travel rather than hoping the difference will not matter. In a hypothetical case, a revised client assignment may require the employer to explain who receives the work. Keep practical alternatives available if admission is not granted as expected; a return ticket or nonrefundable booking cannot establish eligibility.
Check the record after admission
Retrieve the I-94 through CBP’s official service and compare identity information, class of admission, and the admitted-until date with the expected authorization. Save the record and provide it to the employer’s appropriate contact. A discrepancy should be reviewed promptly; CBP deferred inspection may address CBP admission-record errors. Do not edit the record yourself or assume the employer letter’s end date overrides it. Counsel should review conflicting USCIS and CBP records or a substantive status concern.
Handle a changed offer before departure
Amendments to pay, title, worksite or duties tend to arrive at awkward moments, leaving the packet describing a job that no longer exists. Treat the employer letter as a dated statement of fact: when a term inside it moves, the letter is reissued and the superseded copy is taken out of the travel file rather than carried beside it. Where the change touches the listed profession or the qualifications relied on, reissuing is not sufficient by itself, and counsel should consider whether the occupation still sits within the USMCA professional appendix. Hypothetical example: an industrial designer accepts a U.S. role scoped to consumer packaging, the employer moves the assignment to product housings three weeks before travel, and the letter is redrawn because the duties an officer would ask about are no longer the same ones.
Log the changes that arrive after admission
Circumstances also move after entry, and the admission record already issued does not update itself. A corporate merger, a renamed employer, a transfer to another U.S. site or a shortened assignment leaves the admitted-until date on the I-94 governing the authorised period until something formally changes it. Note the date each development took effect and who told the employee, since that chronology is what counsel needs to say whether an amended petition, a further admission request, or no action at all is the right response. Employment with a different employer is a fresh arrangement rather than a continuation of the approved one. Storing the pre-change letter next to the I-94 keeps the two versions of the assignment distinguishable months later.
Sources reviewed 2026-09-07. This guide covers a preparation focus; it is not an individual eligibility assessment.