Mo. Rev. Stat. § 94.500
Sections 94.500 to 94.550 are known and may be cited as the "City Sales Tax Act", and the following words shall have the following meanings unless a different meaning clearly appears from the context:
(L. 1969 p. 166 § 1, A.L. 1977 H.B. 165, A.L. 1991 H.B. 29)