Plumbing Contractor License in New Jersey: Requirements, Qualifier, Bond and Exams

Yes, statewide.

The State Board of Examiners of Master Plumbers — part of the New Jersey Division of Consumer Affairs — licenses master plumbers, and its rule says plumbing shall only be performed by a master plumber, an authorized plumbing contractor, or W-2 employees working under a master plumber's supervision.

The board rules we read set out no separate statewide plumbing contractor license class to apply for: a plumbing contractor operates through a licensed master plumber acting as its bona fide representative.

What the board offers an individual journeyman or apprentice is registration, not a license.

The State Board of Examiners of Master Plumbers, in the Division of Consumer Affairs, licenses and regulates master plumbers, and those licenses renew every two years.

The board's schedule carries one licensed class — Master Plumber — plus registrations: the board takes applications for Registration as a Journeyman Plumber, and journeymen are registered with the board rather than examined and licensed.

The rules we read set out no separate contractor license for the business to hold; its compliance runs through the master plumber who qualifies it.

You can confirm a prospective qualifier's license on the Division of Consumer Affairs' public verification site, newjersey.mylicense.com/verification.

New Jersey names the qualifier the bona fide representative: a licensed master plumber who is the holder of not less than 10 percent of a plumbing contractor in the State of New Jersey.

The master plumber must register with the board within 30 days of assuming the role, with proof of ownership, consent to service of process, the business's acceptance of liability, and the name of any previous bona fide representative.

The exam-eligibility rules your qualifier must meet: at least 21 years old, a 4-year USDOL-approved apprenticeship that includes propane education, then one year of at least 1,200 hours of hands-on experience as a journeyman plumber in New Jersey — or a mechanical, plumbing or sanitary engineering bachelor's degree plus the same journeyman year.

The board says U.S. citizenship is not required for a master plumber license.

The exam in New Jersey's plumbing rules is the master plumber examination; we found no separate contractor trade-and-business-and-law pair added on top of it.

It has three parts: a written exam on the National Standard Plumbing Code as adopted by the State of New Jersey, a practical exam, and a written laws-and-regulations exam, and it is run by a third-party vendor.

Candidates schedule the exam through PSI after board approval.

Build retake time into your hiring plans: a candidate who fails a section must wait six months to retest, and after failing a section two more times, all passed scores are forfeited and the whole exam must be retaken.

After passing the exam, a master plumber must file a $3,000 surety bond, and one bond can serve both the plumbing and HVACR boards — useful to know if your company runs or adds an HVACR business.

Our research did not find a liability-insurance minimum for master plumbers in the board's licensure provisions we read.

That is an absence in our reading — the statute text behind the rules was not something we could review — not a board statement that no insurance is required, so ask the board what coverage your business must carry before you bid.

The fees sit with your qualifier's license: a $100 application fee without prior registration, $160 for the initial license — $80 if paid in the second year of the cycle — and $160 to renew every two years, with a $50 late fee.

Master plumber licenses expire June 30 of odd-numbered years.

Renewal takes 5 credits of board-approved continuing education per two-year period, and licensees applying for their first renewal are exempt.

The fee schedule also lists $50 to register an apprentice and $75 to register a journeyman ($50 with prior registration); our research did not confirm whether every journeyman or apprentice must register, so check with the board.

Not automatically.

New Jersey grants master plumber licenses by reciprocity only where the other state's licensure standards are equal to or comparable with New Jersey's, and the other state reciprocates with New Jersey.

The board's published list of reviewed states is dated, so treat it as a starting point rather than a current roster: it names New York, Pennsylvania, Georgia, Kentucky, Tennessee and others.

Check the board's current reciprocity information before you count on an agreement to qualify a New Jersey business.

Plan for this before it happens.

Our research did not capture a plumbing grace period for replacing a bona fide representative, so we cannot tell you how long a New Jersey plumbing contractor may keep operating without one — ask the board.

And do not borrow the HVACR number: New Jersey's HVACR statute lets an HVACR business keep operating only if another bona fide representative obtains a State license within six months of the death, termination of employment, illness or disability — nothing we read confirms the same window for plumbing.

What the plumbing rules do set is the replacement's paperwork: a new bona fide representative must register with the board within 30 days of assuming the role.

Two more items come up for New Jersey plumbing contractors.

Medical gas piping: installing or repairing medical gas piping in health-care, dental and veterinary facilities takes a separate Master Plumbers Board certification — the rule bars anyone uncertified from working on medical gas piping located after the source valve and intended for patient or animal use — and eligible applicants include licensed masters, journeymen who completed a USDOL apprenticeship, and apprentices with 3+ years; the certification renews every three years for $150, with the initial certification $150 in the first year of the triennial cycle.

Home improvement contractor registration: licensed master plumbers acting within their scope are exempt from New Jersey's home improvement contractor registration.