New Jersey Statutes Title 54. Taxation 54 § 32B-8.41

Receipts from installing tangible personal property in, maintaining, servicing or repairing trucks, tractors, trailers or semitrailers by a person who is not engaged, directly or indirectly through subsidiaries, parents, affiliates or otherwise, in a regular trade or business offering such services to the public, are exempt from the tax imposed under the “Sales and Use Tax Act.”