(a) Within 20 days after any final order or decision has been made by the Commission, any party to the action or proceeding before the Commission, or any person directly affected thereby, may apply for a rehearing in respect to any matter determined in the action or proceeding, or covered or included in the order, specifying in the motion for rehearing the ground therefor. The Commission may grant such rehearing if in its opinion good reason therefore is stated in such motion.

(b) The motion shall set forth fully every ground upon which it is claimed that the decision or order complained of is unlawful or unreasonable. No appeal from any order or decision of the Commission shall be taken unless the appellant shall have made application for rehearing as herein provided. When the application has been made, no ground not set forth therein shall be urged, relied on, or given any consideration by the court, unless the court for good cause shown allows the appellant to specify additional grounds. (Added 1965, No. 175, § 51; amended 1991, No. 17, § 8(a), eff. April 4, 1991; 2007, No. 157 (Adj. Sess.), § 8, eff. May 20, 2008.)