A miscellaneous application filing is a proceeding, other than a certificate proceeding, a transfer proceeding, a proceeding seeking to change, modify, alter, or establish rates, a complaint proceeding or a request for a declaratory opinion in which the authority of the Commission to perform some act is requested. All proceedings to change, modify, alter or increase existing rates or for the establishment of initial rates shall be filed under the provisions of RP 9. Proceedings to obtain certificates shall be filed under the provisions of RP 7.
39 Miss. Code. R. 1-10-100