Arizona Revised Statutes Title 28. Transportation § 28-5615. Presumption of use

A. For the proper administration of this article and to prevent evasion of the use fuel tax, it is presumed, until the contrary is established by competent proof under rules and procedures the director adopts, that all use fuel received into any receptacle on a motor vehicle from which fuel is supplied to propel the vehicle is consumed in propelling the vehicle on the highways in this state.

B. If a vendor's dealings in use fuel primarily involve delivery of use fuel into the fuel tanks of motor vehicles it is presumed, until the contrary is established by competent proof under procedures the director adopts, that the vendor's total use fuel acquisitions have been delivered into the fuel tanks of motor vehicles for the propulsion of the vehicles on the public highways.