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COLWOOD · PROFESSIONAL WORK

Explain the assignment beyond the employer’s letterhead

USAvisa field guide · 3 minute readReviewed 7 September 2026

Read the general professional work overview

THE SHORT ANSWER

Colwood applicants should reconcile administrative addresses with the real professional engagement before relying on an employer letter. A document review should end with a short fact sheet that states the U.S. employer, the exact profession, the duties, the work location or locations, pay, and the requested period. The reader must decide whether the letter describes a real prearranged professional engagement or merely repeats a listed title. Compare the letter against the contract, payroll arrangements, any required licence, and the applicant’s credential before selecting the filing route. Hypothetical example: an actuary accepts a nine-month role with a U.S. insurer to price catastrophe coverage. The letter calls the job “risk consultant,” while the contract assigns actuarial models, reserve analysis, salary, and a defined end date. The applicant must decide whether to present the actual actuary role or rely on a broad consulting label. The degree or licensing record, contract, and detailed duty letter settle that issue; a title alone does not.

01

Identify the actual work

State the employer, professional duties, remuneration and duration. Explain project arrangements accurately instead of assuming a headquarters address tells the whole story. Ask the employer to sign a letter that can be checked against the underlying engagement. It should identify the authorized signer, employment relationship, professional work, remuneration, duration, and material work locations. If a client site is involved, explain the employer-client arrangement without replacing the employer’s own commitment to employ the applicant. A changed project can matter when it changes duties, control, pay, or the entity receiving the services; do not treat every administrative correction as immaterial.

02

Attach the right qualification evidence

TN is for Canadian or Mexican citizens in listed USMCA professions with the particular required qualifications. A credential should support the actual profession; an attractive title does not establish eligibility. Match the qualification to the particular USMCA profession. An actuary is covered by the listed entry for Mathematician, which the treaty note extends to the profession of Actuary, and that entry calls for a baccalaureate or licenciatura degree with no state or provincial licence alternative; experience cannot simply be substituted for a listed requirement. Credential evaluations, transcripts, licences, and experience letters must identify the applicant, issuer, and dates clearly enough to show what was earned. Where professional authorization is required at the work location, obtain the relevant authority or explain the lawful scope before the applicant begins work.

03

Review material changes

Distinguish a corrected mailing address from changed duties or a different employer. Disclose relevant ownership because sole or controlling ownership of the US enterprise receiving services raises prohibited self-employment. Select the proper process from the actual circumstances. Choose the process from the applicant’s nationality and circumstances. A Canadian citizen may seek TN classification at an inspection point or preclearance; an employer may instead request a USCIS decision through Form I-129 when that procedure is appropriate. TN is not available for the applicant’s own self-run U.S. work. Equity, voting rights, and management agreements should therefore be disclosed so the reader can decide whether the applicant controls the U.S. business receiving the services. Do not start the engagement until the correct admission or approval has been obtained.

SOURCE NOTES

Editorial source review: 2026-09-07. General preparation guidance, not an individual assessment.

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