Mo. Rev. Stat. § 8.640
Exempt buildings and facilities
Effective Aug 28, 1989(L. 1973 H.B. 77, A.L. 1989 H.B. 493)
The provisions of sections 8.610 to 8.650 shall not apply to any building or facility for which the contract for planning or design was awarded prior to August 28, 1989.
(L. 1973 H.B. 77, A.L. 1989 H.B. 493)