A.R.S. § 28-2482: License plates for horseless carriages; definition

A. The department shall issue license plates for a horseless carriage on application and in the manner and at the time prescribed by the department. The license plates are in lieu of the regular license plates issued by the department.

B. The registration numbers and license plates assigned to horseless carriages shall be manufactured from Arizona copper and shall run in separate numerical series beginning with "horseless carriage no. 1". The license plates shall be of a distinguishing color.

C. On renewal of the registration of a horseless carriage, the department shall annually issue symbols or devices as provided in section 28-2355.

D. For the purposes of this section, "horseless carriage" means a motor vehicle manufactured in 1915 or before.