Mo. Rev. Stat. § 130.091
130.091 When chapter applicable to elections and contributions or expenditures.
130.091. When chapter applicable to elections and contributions or expenditures. — All sections contained in chapter 130 shall apply only to those elections held on or after August 13, 1978, and to contributions received and expenditures made after August 13, 1978.
(L. 1978 S.B. 839)