Mo. Rev. Stat. § 341.190
The board of plumbing and sewer inspection shall have the power to revoke or suspend any license issued by the board upon satisfactory proof that the holder of such license shall have obtained the same by fraud or misrepresentation or failed to or refused to comply with the provisions of sections 341.090 to 341.220 or regulations adopted pursuant thereto after notice given by the supervisor or has been convicted of the violation of any of the provisions of sections 341.090 to 341.220 and the regulations adopted thereunder. A revoked or suspended license shall be subject to reinstatement after a period of three months from the date of its revocation or suspension upon application in the same manner as provided herein for the original application for license. The finding of the board in revoking any such license may be reviewed by the circuit court of the county by certiorari.
§ 341.190, RSMo