That any person now or hereafter engaging or working at the business of plumbing in cities or towns of fifteen thousand or more inhabitants in this state, either as master plumber or journeyman plumber, shall first receive a certificate thereof in accordance with the provisions of sections 341.010 to 341.080.
Mo. Rev. Stat. § 341.010
Plumbers must have certificates
Known as the Uniform Plumbing Code
The act spans §§ 341–341 (22 sections).
Effective: 28 Aug 1939; (RSMo 1939 § 7560); Prior revisions: 1929 § 7417; 1919 § 8825; 1909 § 9670
Official source: Missouri Revisor of Statutes. Reproduced from public-domain Missouri statutes; confirm against the official source for the current text. Not legal advice.