Mo. Code Regs. Ann. tit. 1, § 15-3.390
PURPOSE: This rule describes who may intervene in an action and how to intervene.
(1) The commission may permit any person to intervene if the person—
(2) A motion to intervene shall—
AUTHORITY: section 628.198, RSMo 1986.* Original rule filed Aug. 5, 1991, effective Feb. 6, 1992. *Original authority: 628.198, RSMo 1965, amended 1978.