(a) Scope of rule. A party or any person aggrieved by a determination in a proceeding may file a motion for reconsideration of a final order issued by the Commission.

(b) Procedure. A motion for reconsideration shall be filed within 10 days after service of the order complained of, or within such time as the Commission may prescribe upon motion for extension of time filed by the person seeking reconsideration, if the motion is made within the foregoing 10-day period. The motion for reconsideration shall briefly and specifically state the matters of record alleged to have been erroneously decided, the grounds relied upon, and the relief sought. A motion for reconsideration shall conform to the requirements, including the limitation on the numbers of words, provided in § 201.154. No response to a motion for reconsideration shall be filed unless requested by the Commission. Any response so requested shall comply with § 201.154.