Missouri Constitution Article III Sec. 28 – Form of reviving, reenacting and amending bills
No act shall be revived or reenacted unless it shall be set forth at length as if it were an original act. No act shall be amended by providing that words be stricken out or inserted, but the words to be stricken out, or the words to be inserted, or the words to be stricken out and those inserted in lieu thereof, together with the act or section amended, shall be set forth in full as amended.