Prior to any final order of the commissioner, a party may seek, upon motion submitted to the hearing examiner, approval of a written interim order on any substantive issue where the facts are not disputed. An interim order shall not be subject to exceptions or application for rehearing until the close of the hearing and the proposal for decision is filed, but any party who would be aggrieved by such an interim order shall be provided an opportunity to file a motion to set aside, or to modify such interim order within three days before such order is entered.
31 Tex. Admin. Code § 17.27