Ariz. Rev. Stat. § 28-5232
A. If after reviewing a report submitted by a law enforcement agency authorized to enforce this chapter the director determines that probable cause exists to believe that the continued operation by a manufacturer, shipper or motor carrier or the continued operation of a motor vehicle by a driver constitutes a danger to the public safety, the director shall issue both:
1. An order immediately imposing either of the following:
C. The scope of the hearing is limited to the following:
F. The director shall not reinstate the registration of the motor vehicle owned or leased by the manufacturer, shipper or motor carrier or the driver license or nonresident operating privilege of the driver until all of the following are met: