Iowa Code § 99A.5
Upon the receipt of such information from any of the peace officers referred to in section 99A.4, if any issuing authority is of the opinion that cause exists for the revocation of any such license, then that authority shall issue an order to show cause directed to the licensee of the premises, stating the ground upon which the proceeding is based and requiring the licensee to appear and show cause at a time and place within the county in which the licensed premises are located, not less than ten days after the date of the order, why the licensee's license should not be revoked. The order to show cause shall be served upon the licensee as an original notice, or by certified mail, not less than eight days before the date fixed for the hearing thereof. A copy of the order shall forthwith be mailed to the owner of the premises, as shown by the records in the office of the county recorder at the owner's last known post office address. A copy of the order shall at the same time be mailed to any other issuing authority, of which the authority issuing the order to show cause has knowledge, by which other licenses to that licensee may have been issued, and any such other authority may participate in the revocation proceedings after notifying the licensee and the officer or authority holding the hearing of its intention so to do on or before the date of hearing, and after the hearing take such action as it could have taken had it instituted the revocation proceedings in the first instance.
Iowa Code § 99A.5