Read the general eligibility basics overview
A ticket bought under a former foreign passport is a commercial reservation, not evidence of your citizenship. Recently acquired Canadian citizenship raises two separate questions: what proof of that citizenship you can actually present, and which process fits the plan you have in mind. Becoming a citizen does not by itself approve any category, and a booking date does not set the sequence of steps.
Separate the booking from the proof you can present
Write down which passport number the airline record carries, which travel document you would present, and what evidence of Canadian citizenship exists today. A citizenship certificate, a passport application under way and an issued Canadian passport are three different states of affairs, and only one of them is a passport in hand. If the Canadian passport has not been issued, record that plainly and ask what the intended procedure accepts as proof. Do not assume that presenting the earlier foreign passport communicates the new citizenship to anyone, or that airline records update it.
Keep every citizenship on the record, not only the newest
Acquiring Canadian citizenship does not necessarily end a previous one. List each citizenship you hold, the date it was acquired and the document that evidences it, because different routes turn on different facts. TN concerns citizens of Canada and Mexico, and Canadian permanent residence alone does not provide access to it. For E-2, the relevant question is qualifying treaty nationality, which is a separate matter from where you live or where you pay tax. Give the professional assessing your options the complete list rather than the citizenship that seems most useful.
Sequence the questions before the departure date
Hypothetical example: an applicant in Boisbriand is granted Canadian citizenship a few weeks before a flight booked long in advance, and begins treating the flight date as the deadline for every decision. Filings, petition approval, visa issuance, admission and effective work authorization are distinct events, and there is no universal rule that one follows automatically from another. Ask which of them would apply to your citizenship and circumstances, and in what order. Where the answer does not fit the ticket, the travel arrangement is the item to change, not the description of the facts.
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.