The degree or licence the case relies on, the employer's letter describing the professional position, proof of Canadian citizenship, and evidence of the state licensing application. Carry originals or certified copies, with certified English translations for anything not already in English.
Build the file around the credential the case relies on
Decide first whether the application rests on the degree or on a provincial licence, and make that document the centrepiece: the diploma with the final transcript, or the licence with its current registration status. Then add the practice group's letter, which should name the veterinarian profession from the list, describe the clinical and non-clinical duties, state compensation and the intended period, and confirm the applicant holds no ownership. Include the state board's acknowledgement of the licensing application so the officer sees the gap is being closed rather than ignored. A Canadian passport proves citizenship; a birth certificate alone leaves a question. Keep a copy of any partnership discussion with the practice, even if unsigned, so nothing about future ownership is hidden. Documents in another language need complete certified English translations under the USCIS translation rule.
Hypothetical example: a Canadian environmental scientist brings a polished résumé but no final transcript for the degree on which the case depends. The first review identifies that omission before travel and asks the university for the primary record, while the employer supplies a duty-specific letter. A résumé summarizes claims; it does not settle the credential. Organize originals, clear copies and translations in the order an officer can verify them, and explain any name variation with a civil record.