IN THIS GUIDE · Clarifying contracts, the actual employer, and independent practice conditions when a veterinarian is offered relief assignments at several clinics
Start with the TN eligibility and application overview
Name the employer behind each assignment
Ask, for every clinic on the schedule, whether the engagement runs through a staffing or relief agency, through one clinic that then places the veterinarian elsewhere, or directly with each practice. Each answer produces a different structure. Collect the actual contracts rather than the recruiter's summary, and note which entity issues payment, sets the schedule, and would be named as the employer. The first review should end with a named employer for every assignment and a record of the exact professional services. A payroll stub alone may not resolve a conflict between the letter, contract, and schedule.
Read the agency arrangement on its own terms
Where an agency stands between the veterinarian and the clinics, the agreement should show the relationship clearly: who engages whom, who directs the work, the term, and whether the clinics are named or assigned later. Classification also depends on prearranged professional employment, so an arrangement with no identified engagement in place is weaker evidence than a defined agreement with a stated scope and period. Hypothetical example: a relief veterinary ophthalmologist accepts two weekend assignments through a coordinator, but one clinic changes the client entity after the letter is signed. The decision is whether to obtain corrected evidence before relying on the original package.
Ownership of a United States entity changes the analysis
Supplying services to a United States entity in which the professional holds sole or controlling ownership is treated as prohibited self-employment, and adding a nominally independent supervisor does not cure controlling ownership. That is different from saying no contracting arrangement can work; many do not involve ownership at all. If any equity, incorporation, or partnership interest is proposed, put the full structure in front of counsel before signing. For a Canadian or Mexican citizen, a request for TN classification may be made during arrival processing; alternatively, the U.S. employer can submit Form I-129 to USCIS. Neither route authorizes services for a business the professional owns or controls. In practice, this means an applicant may seek TN classification at a border or airport inspection point, while the alternative is an employer-submitted I-129 petition.
Account for every location and every payer
Authorization is tied to the employment presented, so an arrangement involving more than one engaging entity is not automatically covered by a single approval, and adding another employer later has its own requirements. List each clinic, its address, and the entity paying for the work, then let counsel determine what needs to be reflected in the documentation and what would require a separate step. Treat the proposed start date as conditional until the applicable process is complete. The practical decision is whether one coherent employer record exists now, or whether separate arrangements need separate analysis before work is accepted.
Sources reviewed 2026-09-07. This guide covers a preparation focus; it is not an individual eligibility assessment.