Section 34
SEC. 34. Any interested party may request the reconsideration of any order, ruling, or decision of the Commission by means of a petition filed not latter than fifteen days after the date of the notice of the order, ruling or decision in question. The grounds on which the request for reconsideration is based shall be clearly and specifically stated in the petition. Copies of said petition shall be served on all parties interested in the matter. It shall be the duty of the Commission to call a hearing on said petition immediately, with notice to the parties, and after hearing to decide the same promptly, either denying the petition or revoking or modifying the order, ruling or decision under consideration.