Ariz. Rev. Stat. § 28-5802
A. Notwithstanding sections 28-2003 and 28-5801, the registering officer shall not collect a vehicle license tax or registration fee from:
C. Notwithstanding sections 28-2003 and 28-5801, the registering officer shall not collect a vehicle license tax and registration fee from a veteran for a personally owned vehicle or a veteran and another party owning a vehicle. The exemption allowed by this subsection applies only to one vehicle and only if all of the following apply: