Section 21.11 Exemptions
A. It is a defense to prosecution under Section 21-1-8 that a person appearing in a state of nudity did so in a modeling class operated by the following:
1. By a proprietary school licensed by the State of Arizona or a college, junior college or university supported entirely or partly by public taxation.
2. By a private college or university that maintains and operates educational programs in which credits are transferable to a college, junior college or university supported entirely or partly by taxation.
3. In a structure:
a. Which has no sign visible from the exterior of the structure and no other advertising that indicates a nude person is available for viewing.
b. Where, in order to participate in a class a student must enroll at least three days in advance of the class.
c. Where no more than one nude model is on the premises at any one time.