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New Jersey Plumbing

New Jersey master plumber license guide

New Jersey plumbing is regulated by the State Board of Examiners of Master Plumbers. This guide focuses on the licensed master plumber path, journeyman registration, and the bona-fide representative requirement for plumbing contractor businesses.

The short answer

New Jersey's State Board of Examiners of Master Plumbers licenses and regulates master plumbers. Plumbing contractor businesses should also understand the bona-fide representative model, where the licensed master plumber representative must hold at least 10% ownership in the plumbing contractor business.

Who this applies to

  • Individuals pursuing licensed master plumber status should start with the Board's examination application path.
  • Journeyman plumbers should use the Board's registration application path when applicable.
  • Plumbing contractor businesses should review the bona-fide representative rules before advertising or signing permits.

Requirement snapshot

Authority New Jersey State Board of Examiners of Master Plumbers
Board scope The Board says it licenses and regulates master plumbers in New Jersey and regulates the practice of plumbing.
Applications The Board applications page includes the examination application to become a licensed master plumber, journeyman registration, medical gas certifications, reinstatement, and bona-fide representative registration.
Bona-fide representative The Board FAQ says the bona-fide representative is a licensed master plumber who holds not less than 10% of a plumbing contractor business in New Jersey.
Permit authority The Board FAQ says the bona-fide representative may sign and seal a time-limited letter authorizing an individual to secure a permit, with the permit signed by the bona-fide representative.
Subcontracting disclosure The Board FAQ describes an advertising disclosure when a plumbing contractor subcontracts more than one-third of the work it contracts to perform.

Practical application path

  1. Start on the New Jersey master plumbers board page.
  2. Use the applications page to choose the master plumber examination, journeyman registration, reinstatement, medical gas, or bona-fide representative path.
  3. For a plumbing contractor business, confirm who will serve as the bona-fide representative before advertising the business.
  4. Document ownership and representative status before permit/signature issues arise.
  5. Check official Board pages before changing business structure, subcontracting practices, or license status.

Watchouts before you sell the work

  • Do not treat journeyman registration as the same credential as a licensed master plumber.
  • The business representative and ownership rules matter for plumbing contractors, not just the individual license.
  • Subcontract-heavy plumbing businesses may need specific advertising disclosures under the Board FAQ.

Official source links

NJ State Board of Examiners of Master Plumbers https://www.njconsumeraffairs.gov/plu NJ master plumber applications and forms https://www.njconsumeraffairs.gov/plu/pages/applications.aspx NJ master plumber FAQ https://www.njconsumeraffairs.gov/plu/Pages/FAQ.aspx

FAQ

Who licenses master plumbers in New Jersey?

The New Jersey State Board of Examiners of Master Plumbers licenses and regulates master plumbers.

What is a New Jersey plumbing bona-fide representative?

The Board FAQ says it is a licensed master plumber who holds not less than 10% of a plumbing contractor business and acts for that business under the Board's rules.