Mo. Rev. Stat. § 355.551
355.551 Amendment of articles.
355.551. Amendment of articles. — A corporation may amend its articles of incorporation at any time to add or change a provision that is required or permitted in the articles or to delete a provision not required in the articles. Whether a provision is required or permitted in the articles is determined as of the effective date of the amendment.
(L. 1994 H.B. 1095) Effective 7-01-95