Mo. Rev. Stat. § 166.425
All money paid by a participant in connection with participation agreements shall be deposited as received and shall be promptly invested by the board. Contributions and earnings thereon accumulated on behalf of participants in the savings program may be used, as provided in the participation agreement, for qualified higher education expenses.
(L. 1998 H.B. 1694, A.L. 1999 S.B. 460)