Mo. Rev. Stat. § 351.810
Bylaws.
351.810. Bylaws. — 1. A statutory close corporation need not adopt bylaws if provisions required by law to be contained in bylaws are contained in either the articles of incorporation or a shareholder agreement authorized by section 351.800 .
2. If a corporation does not have bylaws when its statutory close corporation status terminates under section 351.835 , the corporation shall immediately adopt bylaws under section 351.290 .
(L. 1990 H.B. 1432)