28-5851. Definitions In this article, unless the context otherwise requires: 1. ' Declared gross weight' has the same meaning prescribed in section 28-5431. If a declaration has not been made, declared gross weight means gross weight. 2. ' Gross weight' has the same meaning prescribed in section 28-5431. 3. ' Motor carrier' means a person who operates or causes to be operated a motor vehicle on a public highway. 4. ' Motor vehicle' means a self-propelled motor driven vehicle that has a declared gross vehicle weight of more than twelve thousand pounds and that is subject to vehicle registration before lawful operation on the public highways in this state, excluding a motor vehicle that is exempt from gross weight fees pursuant to section 28-5432. 5. ' Public highway' means any way or place in this state that is constructed or maintained with public monies and that is open to use by the public as a matter of right for the purpose of vehicular travel, including a highway under construction.
Arizona Legal Code