Ariz. Rev. Stat. § 41-1008
A. Except as provided in subsection C of this section, an agency shall not:
3. Increase a fee in an amount that exceeds the percentage of change in the average consumer price index as published by the United States department of labor, bureau of labor statistics between that figure for the latest calendar year and the calendar year in which the last fee increase occurred. An agency may increase a fee in an amount that exceeds the percentage of change in the average consumer price index if either of the following applies: