Ariz. Admin. Code § R12-14-625
If a party fails to appear at a hearing, the Commission may proceed with the presentation of the evidence of the appearing party, vacate the hearing and return the matter to the Authority for any further action, or dismiss the appeal and conclude that there is a final action on the existing administrative record.
New Section made by final rulemaking at 21 A.A.R. 297, effective April 14, 2015 (Supp. 15-1).