Membership Join our elite team. Leadership Meet our Board of Directors comprising NYC Licensed Master Plumbers and our Executive and Senior Directors. Licensed Plumbers Apply as a union or non-union licensed plumber to join the leading NYC plumbing industry watchdog group and advocacy organization. Associate Membership We welcome membership of non-licensed individuals and companies heavily involved in the NYC plumbing industry. Gas Operator QualificationInterested in Membership in our Gas Operator Qualification Program? Click here.