Ariz. Rev. Stat. § 28-5808
A. Except as provided in subsection D of this section, the director shall distribute monies collected by the director pursuant to section 28-5801, except monies deposited in the state general fund, on the first and fifteenth calendar day of each month as follows:
2. On the fifteenth calendar day, the director shall deposit, pursuant to sections 35-146 and 35-147, all of the Arizona highway user revenue fund monies received from the sixteenth through the last day of the preceding month in the Arizona highway user revenue fund, except that on the fifteenth calendar day, the director shall deposit, pursuant to sections 35-146 and 35-147, in the parity compensation fund established by section 41-1720, 1.51 per cent of the portion of vehicle license tax revenues that otherwise would be deposited in the state highway fund from the sixteenth through the last day of the preceding month. On the fifteenth calendar day, the director shall distribute or deposit all other monies received during the entire preceding month as follows:
B. The director shall distribute monies collected by the director pursuant to sections 28-5804, 28-5805, 28-5806 and 28-5810, except monies deposited in the state general fund, on the first and fifteenth calendar day of each month as follows:
2. On the fifteenth calendar day, the director shall deposit, pursuant to sections 35-146 and 35-147, 37.61 per cent of all monies received from the sixteenth through the last day of the preceding month in the highway user revenue fund and distribute or deposit the following amounts as a percentage of all monies received pursuant to sections 28-5804, 28-5805, 28-5806 and 28-5810 during the entire preceding month as follows:
C. For purposes of this section the population of a county, city or town shall be determined as provided by section 28-6532 or 42-5033.01. If an incorporated city or town has had no federal enumeration of population, the supervisors shall both:
D. On the fifteenth calendar day of each month, the director shall transfer to the state general fund from the portion of vehicle license tax revenues that otherwise would be deposited in the state highway fund pursuant to section 28-6538, subsection A, paragraph 1 the following amounts: