Mo. Rev. Stat. § 337.668
The term of each license issued pursuant to the provisions of sections 337.650 to 337.689 shall be no less than twenty-four and no more than forty-eight consecutive calendar months. All licensees shall annually complete fifteen hours of continuing education units. The committee shall renew any license, other than a provisional license, upon application for a renewal, submission of documentation of the completion of the required annual hours of continuing education and payment of the fee established by the committee pursuant to the provisions of section 337.662.
(L. 2001 H.B. 567)