Goods Vehicle : A motor vehicle that: is constructed primarily for the carriage of goods, and either: (a) has at least four wheels, or (b) has three wheels and a gross vehicle mass exceeding one tonne
Ministry of Business, Innovation and Employment, Glossary of terms and acronyms, Wellington, New Zealand 2010. http://wwwsosh.govt.nz/resources/glossary-u.shtml, (Occupn Hlth and Sfty - Brit) {530}