Mo. Rev. Stat. § 327.291
Any person who practices as a professional land surveyor in Missouri as defined in section 327.272, who is not a holder of a currently valid license or certificate of authority to practice professional land surveying in Missouri, or who pretends or attempts to use as such person's own the license or certificate of authority or the seal of another professional land surveyor or who affixes such person's or another professional land surveyor's seal on any map, plat, survey or other document which has not been prepared by such person or under such person's immediate personal supervision is guilty of a class A misdemeanor.
(L. 1969 S.B. 117, A.L. 1981 S.B. 16, A.L. 1999 H.B. 343)