Mo. Rev. Stat. § 316.070
Exempted structures.
316.070. Exempted structures. — The provisions of sections 316.060 to 316.100 shall not apply or be applicable to any church, school, baseball parks, tent show or building used at infrequent intervals as a place of assembly of public amusement.
(L. 1949 p. 564 § 14958A)