Ariz. Rev. Stat. § 28-2233
C. A person may proportionally register and license a vehicle pursuant to this article by filing an application with the director. The execution of the application is subject to penalties of perjury for false statements. The application shall contain the following information and other information pertinent to vehicle registration as the director requires:
1. Total fleet miles determined as follows:
2. In-state miles determined as follows:
4. For proportional registration of an interstate fleet to be operated in this state for the first time: