Mo. Rev. Stat. § 701.338
Rules — promulgation — procedure.
701.338. Rules — promulgation — procedure. — No rule or portion of a rule promulgated under the authority of sections 701.300 to 701.338 shall become effective unless it has been promulgated pursuant to the provisions of section 536.024 .
(L. 1993 S.B. 232 § 20, A.L. 1995 S.B. 3)