Ariz. Rev. Stat. § 41-1444
A. A public entity that constructs a new restroom that is accessible to the public in a public building or that totally renovates an existing restroom that is accessible to both men and women and to the public in a public building shall:
B. The responsible authority may grant an exemption from the requirements of this section if the responsible authority determines that:
1. Any of the following would apply to the installation of a changing station that is capable of serving both a baby and an adult:
E. For the purposes of this section:
2. "Public entity" means any: