Mo. Rev. Stat. § 191.695
No rule or portion of a rule promulgated under the authority of sections 191.650 to 191.700 shall become effective unless it has been promulgated pursuant to the provisions of section 536.024.
(L. 1988 H.B. 1151 & 1044 § 17, A.L. 1993 S.B. 52, A.L. 1995 S.B. 3)