Ariz. Rev. Stat. § 32-3281
D. If after completing an investigation the board finds that the information provided is not of sufficient seriousness to merit disciplinary action against the licensee, the board shall either:
H. If after completing the formal interview the board finds the information provided is not of sufficient seriousness to merit suspension for more than twelve months or revocation of the license, the board may take the following actions:
U. For complaints being brought before the full board, the information released to the public regarding an ongoing investigation must clearly indicate that the investigation is a pending complaint and must include the following statement:
Pending complaints represent unproven allegations. On investigation, many complaints are found to be without merit or not of sufficient seriousness to merit disciplinary action against the licensee and are dismissed.
V. The board shall not act on its own motion or on any complaint received by the board in which an allegation of unprofessional conduct or any other violation of this chapter against a professional who holds an Arizona license occurred more than four years before the complaint is received by the board. The time limitation does not apply to: