Mo. Rev. Stat. § 340.252
Current with changes from the 2023 Legislative Session
A person issued a license, certificate, permit or other authority issued under sections 340.200 to 340.330 shall conspicuously display such license, certificate, permit or other authority in the person's principal place of business or employment or as otherwise provided for by board rule. Such person shall exhibit such license, certificate, permit or other authority upon demand by any member of the board or its authorized agent.
§ 340.252, RSMo