207.021. No rule or portion of a rule promulgated under the authorityof this chapter shall become effective unless it has been promulgatedpursuant to the provisions of section 536.024, RSMo.
(L. 1981 H.B. 901 ยง B, A.L. 1993 S.B. 52, A.L. 1995 S.B. 3)