Her Canadian passport, the employer's letter naming Registered Nurse and describing the clinical duties, her nursing degree or diploma with transcripts, her provincial licence and any state licence or permit, and the health-care worker certificate. Copies of the contract and proof of the employer's existence help if the officer asks.
Originals for credentials, and one letter that tells a consistent story
Officers compare three things: the profession named in the letter, the credential presented, and the duties described. Karina's letter should say Registered Nurse, cite her licence, and describe bedside or unit nursing at a level that plainly needs that licence. Her Ontario registration should be current, printed from the regulator, and accompanied by the degree and transcripts, because some officers ask for the education behind the licence. The health-care certificate must be the original from the credentialing body, not a screenshot of an application. If the contract is through an agency, bring the agency agreement and the hospital placement letter so the employer relationship is clear. Keep everything in one folder in the order the officer will ask for it, and keep a duplicate set at home in case a document is retained.
Hypothetical example: A Canadian urban forester is hired by a U.S. environmental consulting firm. The reviewer builds a document index linking passport, degree, transcript, employer letter and duty description to each requirement. The firm’s letter should identify its signatory, worksite, compensation, temporary need and professional supervision. A résumé cannot substitute for a credential record, and an untranslated document can delay a decision. If the degree title is unfamiliar, obtain an evaluation or authoritative school material before travel instead of expecting an officer to infer equivalency.