After a proceeding has been initiated by petition or otherwise, any request for action by the Commission for an order shall be by motion which, unless made during a hearing or at docket review, shall be made in writing filed with the Commission pursuant to RP 6, shall state with particularity the grounds therefore, the legal authority and argument in support thereof and shall set forth the relief or order sought.
Other parties to the proceedings desiring to oppose any written motion shall file a response thereto within seven (7) days of the date the motion is served pursuant to RP 6. Provided, however, that the Commission, upon good cause shown, may require expedited responses to any motion.
39 Miss. Code. R. 1-12-100