No. TD status allows a spouse and unmarried children under 21 to accompany the TN professional and to study, but it does not authorize employment of any kind. Electrician is not a USMCA-listed profession, so he cannot obtain his own TN either.
A trade licence does not open a TN door
Hypothetical example: a Haldimand County engineer accepts a TN position at a U.S. plant, and her husband, a licensed construction electrician, assumes he will find work on the same site. TD status does not permit that.
He may live in the United States as a dependant and may enrol in a course, but he cannot be employed, take contract jobs, or run a trade business from a U.S. address. Appendix 2 lists professions with degree or licence rules; electrician is not among them, so a TN of his own is unavailable regardless of his qualifications.
Options are limited: an employer-sponsored category in his own right, which is uncommon for trades, or continuing to work in Canada and visiting. The household should decide whether the engineer's salary alone supports the move before accepting. Plan the answer to the officer's question about his intentions truthfully, because a stated plan to work is inconsistent with TD and can lead to refusal of his TD application; it does not automatically decide the principal's TN application.
The first household review should produce two separate calendars: the TN worker's authorized employment dates and the dependant's lawful, non-work plans. Hypothetical example: a landscape architect relocates under TN while her spouse continues a Canadian mobile-equipment repair business. Customer contracts, dispatch logs and the location where revenue-generating tasks occur matter; performing that business from the United States is not permitted in TD status even when the customers remain in Canada.
The spouse should arrange a Canadian manager, pause work during U.S. stays, or obtain independent authorization before providing services. This decision should be made before housing and school commitments, because a dependant's hoped-for income cannot be counted as available.