Mo. Rev. Stat. § 280.060
Every treated timber producer chemically treating timber for sale or offer for sale in Missouri, whether in state or out of state, shall, before selling or offering for sale, file with the director a statement giving the following information:
(L. 1961 p. 40 § 3.2, A.L. 1965 p. 95, A.L. 1979 S.B. 36, A.L. 1984 H.B. 863)
Effective 1-01-85