Ariz. Rev. Stat. § 15-1866
A. The Arizona board of regents and each community college district governing board shall develop and adopt a policy on free expression that contains at least the following statements and requirements:
5. In all disciplinary proceedings involving students, including proceedings involving expressive conduct, a student is entitled to a disciplinary hearing under published procedures that include, at a minimum, all of the following:
D. The Arizona board of regents and each community college district governing board may adopt rules to further the purposes of the policy adopted pursuant to subsection A of this section. This section does not prevent universities and community colleges from regulating student speech or activity that is prohibited by law. Except as otherwise provided by this article, universities and community colleges may restrict student expression only for expressive activity that is not protected by the first amendment of the United States Constitution, including: