Nothing in this act shall prohibit cities and towns from having full authority to provide full supervision and inspection of plumbing by the enactment of codes, rules and regulations in such form as they may determine and prescribe; provided, that no such ordinances, bylaw, rule or regulation shall be inconsistent with this act, or any rule or regulation adopted or prescribed by the State Board of Health through authority of this act. Each State-licensed master plumber, plumbing contractor and journeyman plumber shall be required to register with the plumbing inspector of every city and town in whose jurisdiction he operates, and each such city or town is hereby authorized to register such master plumber, plumbing contractor and journeyman plumber, to revoke the same, to charge fees for such registration, for permits and for inspections of plumbing and fixtures. Provided, further, that no master plumber, plumbing contractor or journeyman plumber shall be permitted to do business or work in any city or town wherein his local registration has been revoked.

Laws 1955, p. 371, § 20.