Mo. Rev. Stat. § 33.577
There is hereby established within the state treasury a fund to be known as the "Cash Operating Reserve Fund". The following moneys shall be transferred to or credited to the cash operating reserve fund:
(2) Such amounts as may be appropriated by the general assembly or otherwise credited to the cash operating reserve fund.
The commissioner of administration may, throughout any fiscal year, transfer amounts from the cash operating reserve fund to the general revenue fund without other legislative action if he determines that such transfers are necessary for the cash requirements of the state. The commissioner shall transfer from the general revenue fund to the reserve an amount equal to the amount transferred from the reserve to the general revenue fund, but in any case the transfer must be made prior to May first of the fiscal year. No transfer out of the cash reserve may be made during May or June of any fiscal year. The balance in the reserve on May first of each fiscal year shall not be less than the sum of the opening balance of the reserve for that fiscal year plus accrued interest earned. Funds in the reserve which are not needed for current cash requirements of the state shall be invested by the treasurer in the same manner as other surplus funds are invested.
(L. 1983 1st Ex. Sess. H.B. 10 § 3)
Effective 1-1-84
* Contingent repeal of this section, see subsection 2 of section 33.288, RSMo.