Mo. Rev. Stat. § 151.120
It shall be the duty of each city or town council, board of aldermen, board of trustees, board of directors, or governing body, howsoever known, as the case may be, of every city, incorporated town or village, special road district, library district, school district which levies taxes for library purposes pursuant to section 137.030, hospital district, nursing home district, ambulance district, metropolitan zoological park and museum district established pursuant to section 184.350, public water supply district, fire protection district, or sewer district or subdivision, except other school districts, wherein any railroad property is located, on or before the first day of September in each year, to certify to the county commission of their respective counties a statement of the assessments made in pursuance to section 151.100 and also the rate percent levied by the city, incorporated town or village, special road district, library district, school district which levies taxes for library purposes pursuant to section 137.030, hospital district, nursing home district, ambulance district, metropolitan zoological park and museum district established pursuant to section 184.350, public water supply district, fire protection district, or sewer district or subdivision, except other school districts, for municipal, special road, library, public water supply, fire protection and sewer purposes for that year.
§ 151.120, RSMo
Effective 6/20/1986