Mo. Rev. Stat. § 280.130
Any person, firm or corporation who violates any provision or requirement of this chapter is guilty of a class B misdemeanor and upon conviction thereof shall be punished by a fine of not more than five hundred dollars, or by imprisonment for not more than six months, or by both such fine and imprisonment.
(L. 1961 p. 40 § 9, A.L. 1979 S.B. 36, A.L. 1984 H.B. 863)
Effective 1-01-85