Mo. Rev. Stat. § 452.600: Educational sessions program shall be established by courts — for proceedings involving custody or support.

The circuit courts, by local rule, shall establish a program of educational sessions for parties to actions for dissolution of marriage or in postjudgment proceedings involving custody or support, concerning the effects of dissolution of marriage on minor children of the marriage, and the benefits of alternative dispute resolution, including mediation. In lieu of establishing such a program, the circuit court may, by local rule, designate a similar program of educational sessions offered by a private or public entity.