Read the general eligibility basics overview
A Les Cèdres resident may replace a passport or correct a name while preparing a U.S. case. Separate the updated document from the actual nationality and category conditions. Write the change as a statement of fact before writing it as an explanation: what the old document said, what the new one says, which authority issued each, and on what date. Most of the confusion in these files comes from a narrative written first with documents fitted to it afterwards, when the documents themselves would have settled the point in two lines.
Record the real change
Identify whether the update concerns validity, a name or citizenship itself. A replacement document does not necessarily mean a new nationality. Canadian permanent residence does not establish Canadian citizenship for TN, and an expected passport should not be represented as already issued. Three changes get conflated and should not be. A renewal produces a new document number and expiry for the same person of the same nationality. A correction fixes an error in a name, a date or a place of birth, and it usually leaves a paper trail with the issuing authority that can be requested. A grant of citizenship is a change of status with its own certificate and its own date. Say which of the three occurred and hold the document proving it, since the three are evidenced very differently and a file that blurs them invites the question of what else it has blurred.
Keep route eligibility independent
TN requires Canadian or Mexican citizenship and qualifying professional work. L requires qualifying foreign employment, related companies and an appropriate U.S. role with continuing international operations. E-2 requires treaty nationality and the qualifying ownership, investment and direction conditions. A document replacement does not establish those complete tests. Hypothetical example: a horticulturist employed by a botanic garden becomes a Canadian citizen partway through preparing a case, having previously held permanent residence. That change may open a route not previously available, and it changes nothing about the other conditions: a listed profession and its qualifications for one route, qualifying foreign employment and a company relationship for another, treaty nationality with the investment and direction conditions for a third. Test the new position against each condition rather than assuming one change resolves the whole analysis.
Reconcile genuine records for each person
Hypothetical example: an old credential and a new passport use different surnames. Preserve the originals and authentic linking evidence. Relatives may have different nationality and document requirements; do not apply one person’s update to the whole household. Build a name chart for the household: for each person, every version of the name appearing anywhere in the file, the document it appears on, and the record linking it to the next version. Marriage certificates, change-of-name certificates and, where a spelling was transliterated differently by two authorities, an affidavit or the issuing authority's own confirmation are what carry that weight. Do the chart once at the start and keep it current, because a discrepancy found late usually costs more time than the document resolving it took to obtain.
What else is on your mind?
Does Canadian permanent residence give me access to TN?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?Editorial source review: 2026-09-07. General preparation guidance, not an individual assessment.