Mo. Code Regs. Ann. tit. 1, § 15-6.390
PURPOSE: This ruledescribes who may interuene in an action and how to interuene.
(1) The commission may permit any person to intervene if the person-
(2) A motion to intervene shall-
(D) Be accompanied by a pleading.
Auth: section 621.198, RSMo 11986).* Original r&filed Aug. 5,1991, effectectiue Feb. 6, 1992.