ir of vehicles, trailers, containers, and other equipment;Nexus and State Tax Due Diligence Chapter 3 (iii) for coordinating and directing the transportation of passengers or freight; or (iv) for doing any other business of the taxable entity. (d) See ??3.583 of this title (relating to Margin: Exemptions) for information concerning exemption for certain trade show participants under Tax Code, ??17