TD does not authorize employment, and the principal’s work history does not confer the spouse’s permission.
Assess the spouse’s own proposed employment
The spouse may have a separate professional history or offer, but it needs its own lawful route. Do not assume family accompaniment or a familiar employer replaces that assessment.
Treat the principal’s TN evidence and the spouse’s intended activity as two separate files. A former-employer reference may help prove the principal’s professional qualification, but it gives no derivative work right. TD dependants may study, yet they cannot accept employment or provide paid or unpaid services that amount to work. If the spouse has a US offer, identify a category available on the spouse’s own citizenship, credentials, employer, and duties before any services begin. Canadian permanent residence should never be recorded as Canadian citizenship. The principal likewise needs Canadian or Mexican nationality, a qualifying USMCA profession and credentials, prearranged employment, and an arrangement that is not US self-employment.
Hypothetical example: A wildlife biologist in Rivière-Éternité plans a TN assignment and relies on a reference issued before her laboratory changed names. Her spouse, a payroll clerk, is offered remote tasks by that former laboratory after the move. They use corporate records to explain the biologist’s employment history, but do not attach the reference as proof that the spouse may work. The spouse declines the tasks unless a separate work-authorized route is secured; TD admission alone would allow accompaniment and study, not payroll services.