Ambulance 1 : Medicine. Any motor vehicle, aircraft, or vessel (a) designed and used principally for the transport of sick or injured persons; and (b) operated by an ambulance operator
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}