Mo. Rev. Stat. § 105.006
105.006 State officials and employees, effective date for salary adjustments, ...
105.006. State officials and employees, effective date for salary adjustments, exception. — Any increase in a statutorily set salary, other than the adjustment provided for in section 105.005 , shall take effect on July first of the year following the date of enactment unless a specific line item appropriation to fund the increase has been made prior to that date.
(L. 1999 H.B. 368)