Section 45:14C-12.3 - Exclusive licensing procedurea. On or after the effective date of P.L. 1987, c.442 (C.45:14C-12.1 et seq.), a person shall not work as a master plumber or use the title or designation of master plumber unless licensed pursuant to the provisions of P.L. 1987, c.442 (C.45:14C-12.1 et seq.).b. On or after the effective date of P.L. 1987, c.442 (C.45:14C-12.1 et seq.), a person, firm, partnership, corporation or other legal entity shall not engage in the business of plumbing contracting or advertise in any manner as a plumbing contractor or use the title or designation of plumbing contractor unless authorized to act as a plumbing contractor pursuant to the provisions of P.L. 1987, c.442 (C.45:14C-12.1 et seq.).c. In addition to any penalty authorized pursuant to the provisions of section 12 of P.L. 1978, c.73 (C.45:1-25), any person, firm, partnership, corporation or other legal entity that knowingly violates any provision of this section shall be guilty of a crime of the fourth degree.Amended by L. 2017, c. 173,s. 1, eff. 7/21/2017.L.1987, c.442, s.8; amended 1992, c.62.