Mo. Rev. Stat. § 21.280
Local laws, how passed.
21.280. Local laws, how passed. — No local or special law shall be passed by the legislature of Missouri, unless notice of the intention to apply therefor is published as provided in section 21.290 .
(RSMo 1939 § 12874, A.L. 1957 p. 595) Prior revisions: 1929 § 11249; 1919 § 7132; 1909 § 8128 CROSS REFERENCES: Local and special laws, indirect enactment, repeal, Const. Art. III § 41 Local and special laws, limitations on passage, Const. Art. III § 40