Parties to a hearing may agree, in writing, to any issue addressed in the hearing, including matters of procedure, subject to the approval of the hearing officer. If approved by the hearing officer, an agreement on matters of procedure or substance is binding upon the parties to the stipulation. The hearing officer may require presentation of evidence for proof of stipulated facts. No agreement by the parties on substantive matters is binding upon the Department unless incorporated into the decision of the Commissioner.
Ariz. Admin. Code § R12-5-215