Exceptions; commercial or industrial firm.

A. This article shall not apply to any person, firm or corporation doing plumbing work on his or its own plumbing system, provided that such system shall be connected to a private sewage disposal system. Except as hereinafter provided, a person, firm or corporation whose plumbing system shall be connected to public sewers shall permit plumbing work on his or its premises to be done only by licensed plumbers.B. A commercial or industrial firm or corporation may designate one of its employees who shall be qualified to hold a plumber's license to be responsible to the town for all plumbing work done on the premises of such firm or corporation, and the Building Inspector may issue a license to such individual upon filing the necessary bond as hereinbefore provided, and such license shall be valid for all plumbing work performed on the premises of such commercial or industrial firm or corporation by its own employees.[Amended 8-10-1978]