Ariz. Rev. Stat. § 28-6353
A. In a county with a population of three million or more persons, beginning fiscal year 2026-2027, the regional public transportation authority, in coordination with the regional planning agency, shall conduct a farebox recovery audit of operating costs and revenues for the previous fiscal year for all public transportation as defined in section 28-6301. The audit shall:
B. The annual farebox recovery ratio shall achieve the following percentages: