1. 1. Any member who has not received a lump sum payment equal to the sum total of the contributions that the member paid into the retirement system, plus interest credited to his or her account, shall be entitled to such a lump sum payment. Lump sum payments made pursuant to this section shall not be reduced by any retirement benefits which a member is entitled to receive, but shall be paid in full out of appropriate funds pursuant to appropriations for this purpose.
2. 2. In the event any accumulated contributions standing to a member of the Missouri state employees' retirement system's credit remains unclaimed by such member for a period of four years or more, such accumulated contributions shall automatically revert to the credit of the fund for the Missouri state employees' retirement system. If an application is made, after such reversion, for such accumulated contributions, the board shall pay such contributions from the fund for the Missouri state employees' retirement system; except that, no interest shall be paid on such funds after the date of the reversion to the fund for the Missouri state employees' retirement system.
3. 3. In the event any amount that is due to a member of either system remains unclaimed by such member for a period of four years or more, such amount shall automatically revert to the credit of the fund of the member's system. If an application is made after such reversion for such amount, the board shall pay such amount from the board's fund to the member, except that no interest shall be paid on such funds after the date of the reversion to the fund.

(L. 1981 H.B. 835, et al., A.L. 1985 H.B. 790, A.L. 1988, H.B. 1643 & 1399, A.L. 1997 H.B. 356, A.L. 1999 S.B. 308 & 314)