Two separate credentials, one division, and which one applies to you
New Jersey runs two systems that a plumbing company has to keep straight.
The first is the plumbing license. The State Board of Examiners of Master Plumbers licenses apprentice plumbers, journeyman plumbers and master plumbers, certifies medical gas piping instructors, brazers and installers, regulates the practice of plumbing and medical gas piping, and investigates complaints. Its mailing address is P.O. Box 45008, Newark, New Jersey 07101 and its offices are at 124 Halsey Street, 6th Floor, Newark, New Jersey 07102, telephone 973-504-6420. It sits in the Division of Consumer Affairs in the Department of Law and Public Safety.
The second is Home Improvement Contractor registration, run by the Division of Consumer Affairs itself under the Contractors' Registration Act at N.J.S.A. 56:8-136 and following. That is a registration, not a license, and the rules go out of their way to say so.
The two do not stack automatically. N.J.S.A. 56:8-140(c) states that the Act does not apply to any person regulated by the State as an architect, professional engineer, land surveyor, electrical contractor, master plumber and several other named professions, or any other person in a related profession requiring registration, certification or licensure by the State, who is acting within the scope of practice of his profession. The Division repeats master plumbers in the exemption list printed on the HIC application.
So a licensed master plumber doing plumbing is outside the HIC Act. The question a plumbing company has to answer is whether everything it sells is inside the plumbing scope.
Sourcesnjconsumeraffairs.gov 1njconsumeraffairs.gov 2njconsumeraffairs.gov 3njconsumeraffairs.gov 4
The plumbing contractor, and the bona fide representative who carries it
The license belongs to a person. N.J.A.C. 13:32-1.3 defines a licensed master plumber as a person licensed under N.J.S.A. 45:14C-1 and following who has the qualifications, training, experience and technical knowledge to plan, lay out, install and repair plumbing apparatus and equipment and to supervise others doing that work.
The company is defined separately. The same rule defines a plumbing contractor as any individual licensed master plumber operating as a sole proprietor, or a firm, partnership, corporation or other legal entity that undertakes for another the planning, laying out, supervising, installing or making of additions, alterations and repairs in the installation of plumbing, and which either acts, or has a licensed master plumber who acts, as a bona fide representative under N.J.S.A. 45:14C-2(d) and (h).
Bona fide representative means a licensed master plumber holding not less than 10 percent of a plumbing contractor in New Jersey. N.J.A.C. 13:32-1.3 defines that 10 percent as 10 percent of net profits, a 10 percent equity interest, and 10 percent of net proceeds on a sale, with the shares being the highest level stock carrying full voting rights where there is more than one class. A plumbing business here cannot run on a hired name.
N.J.A.C. 13:32-3.2 gives the representative 30 days from assuming the role to register with the Board, attest to the ownership interest, provide proof the contractor consents to the representative acting as agent for service of process, and provide the contractor's written acceptance of liability for penalties and restitution.
N.J.A.C. 13:32-3.3 then sets the daily duties: written notice to the Board of any change in the entity's name or address within 10 days, and securing all necessary State and local permits or instructing an authorized employee or an independent licensed master plumber to secure them. N.J.A.C. 13:32-3.4 limits who does the work: any and all plumbing work supervised by a licensed master plumber shall be performed only by the licensee's or plumbing contractor's employees.
If the representative dies or becomes ill or disabled, N.J.A.C. 13:32-3.2(d) lets the entity operate six months without one, provided a licensed master plumber supervises all work and the Board is notified within 10 days.
Sourcesdspace.njstatelib.org 1dspace.njstatelib.org 2njconsumeraffairs.gov 3
Experience: three routes to the master plumber examination
N.J.A.C. 13:32-2.2 sets out how an applicant proves experience, and there are three ways in.
The first is apprenticeship. Completion of a four year apprenticeship program approved by both a Federal agency and a Federally certified state agency the Board recognizes, plus one additional year as an apprentice or journeyman, such that the applicant has been engaged as a journeyman plumber for at least three years. One or more years of the apprenticeship may be fulfilled while engaged as a journeyman.
The second is time in the industry. Employment in the plumbing industry for five years immediately preceding the application, with three of the five spent as a journeyman plumber. That experience must be practical hands-on work with tools in installation, maintenance, extension, alteration, repair and removal of piping, fixtures, appliances and apparatus as defined in N.J.S.A. 45:14C-2(g). The rule excludes two things by name: time spent supervising, engineering, estimating and other managerial tasks, and time spent on menial tasks or tasks that are not the practice of plumbing, such as sewer cleaning, even when performed for an entity authorized to perform plumbing.
The third is a degree. A bachelor's degree in mechanical, plumbing or sanitary engineering from an accredited college or university in the United States.
The Board's own application overview adds the practical proof it wants: work certifications signed and sealed by supervising master plumbers, W-2s covering the apprenticeship and the one journeyman year of 1,200 hours of practical hands-on experience, a college transcript for the degree route, or the official U.S. Department of Labor document for formal apprenticeship training. You must be 21 to qualify for the examination.
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The examination: three sections, a 70, and two clocks
N.J.A.C. 13:32-2.3 states that examinations are prepared and administered by a Board approved testing service, but no license is granted except by the Board, and the Board chairman may designate members to oversee administration. Examinations are held at least four times annually.
The examination may consist of three parts: a written examination based on the National Standard Plumbing Code as adopted by New Jersey under the Uniform Construction Act, a practical part by actual demonstration or oral examination, and a written examination of the laws and regulations governing the occupation and business of plumbing. To pass, an applicant must receive a minimum grade of 70.
The Board discussed subsection (e) at its July 24, 2025 meeting and read it into the minutes: an applicant taking the examination for the first time shall complete all three sections of the examination.
Two clocks now run, and the Board voted at that same meeting to begin enforcing them. Under N.J.A.C. 13:32-2.3, if an applicant fails to obtain a passing score on all sections within five years of the date first approved to take the examination, the application for licensure is deemed abandoned and closed. If an applicant fails to sit for the examination within two years of that date, the application is deemed abandoned and closed.
A third abandonment rule sits alongside them. N.J.A.C. 13:32-2.4A deems an application abandoned where the applicant has not submitted all required information and one year has elapsed since the Board's first notice of what is missing. The Board then closes it without notice, and reapplying means paying the application fee again.
Sourcesdspace.njstatelib.org 1njconsumeraffairs.gov 2
Every fee, and the one place two board sources disagree
The Board's application overview lists the application fees it collects: Master Plumber $100.00, Apprentice Plumber $75.00, Journeyman Plumber $75.00, Journeyman Plumber with prior registration as an apprentice $50.00, and Medical Gas Piping in all categories $75.00. All fees are payable by check or money order and no cash.
N.J.A.C. 13:32-5.1 sets the fee schedule in rule. The application fee without prior registration is $100.00 and with prior registration $50.00. The initial license fee is $160.00 if paid during the first year of a biennial renewal period and $80.00 if paid during the second year. The biennial license renewal fee is $160.00. Registration as an apprentice is $50.00. Registration as a journeyman without prior registration is $75.00.
Those two sources agree on the master plumber application fee, the journeyman figures and the $160.00 renewal. They disagree on the apprentice. The Board's application overview prices Apprentice Plumber at $75.00, while the fee schedule in N.J.A.C. 13:32-5.1 as published in the State Library's copy of the chapter prices registration as an apprentice at $50.00. Both are primary. The rule text consulted here is a published supplement rather than today's live code, so the $75.00 figure may reflect a later amendment. Confirm the apprentice fee with the Board before sending a check.
The Board's overview also states the renewal is done online and requires a $160 renewal fee.
Sourcesnjconsumeraffairs.gov 1dspace.njstatelib.org 2
The $3,000 surety bond, and who can claim on it
New Jersey requires a bond and it is a fixed number, not a sliding scale.
N.J.A.C. 13:32-4.3(a) states that an applicant who has passed the examination and furnished the Board with a bond in the sum of $3,000 as required pursuant to N.J.S.A. 45:14C-25 shall be issued a State master plumber's license.
The Board's own application overview repeats it twice in plain language. Keeping a license in good standing means securing the $3,000 surety bond. Renewal means purchasing a $3,000 surety bond to run concurrent with the master plumber's license for the term of the biennial. The bond is not a one-time entry cost. It has to cover the license period.
N.J.A.C. 13:32-4.3(b) sets out who can reach it. Any person, partnership or corporation, including any political subdivision of State government, who has been injured, aggrieved or damaged through the failure of the obligor to perform the duties required by N.J.S.A. 45:14C-1 and following or any rule of the Board is eligible to receive the financial protection of the bond and may maintain an action on it.
That is a broader claimant class than most trade bonds. It is not limited to consumers.
Note what New Jersey does not require of a master plumber as a condition of licensure: the Board's published requirements set a bond, not a commercial general liability minimum. The $500,000 liability figure that circulates for New Jersey contractors comes from the Home Improvement Contractor statute, which is a different law with a different scope.
Sourcesdspace.njstatelib.org 1njconsumeraffairs.gov 2njconsumeraffairs.gov 3
Renewal, continuing education, and shelving a license
Licenses are valid for 2 years and renewals are done online. The Board states the renewal fee as $160 and requires a $3,000 surety bond running concurrent with the license for the term of the biennial.
Continuing education is five hours. The Board states that you must complete your five hours of continuing education prior to renewing, that the five hours must be completed on or before June 30, and that an illness or hardship circumstance preventing participation should be reported to the Board for consideration of a waiver with supporting documents. Keep the certificate in case the Board audits you. N.J.A.C. 13:32 subchapter 6 carries the rules behind that: license renewal and the continuing education requirement, sponsor approval and duties, required course topics, credit awarded, and waiver.
A sponsor has to be approved. The Board reviews continuing education sponsor applications at its business meetings and approves them cycle by cycle.
There is an option for a licensee who is not going to renew on time. At the July 24, 2025 meeting the executive director reported that licensees who have not completed the renewal process can change the status of the license to inactive, which the Board also calls shelving the license, to avoid paying a reinstatement fee if they later decide to activate it.
N.J.A.C. 13:32-2.6(g) gives the same option at renewal: applicants may renew active or inactive, and an inactive licensee shall not practice or hold themselves out to the public as a licensed master plumber, and submits the pressure seal to the Board. The seal comes back when the licensee returns to active status.
Sourcesnjconsumeraffairs.gov 1dspace.njstatelib.org 2njconsumeraffairs.gov 3njconsumeraffairs.gov 4
The pressure seal and the identification card
Two physical items come with a New Jersey master plumber license, and both have rules attached.
N.J.A.C. 13:32-4.1 requires the Board, at the time the license is issued or as soon after as it deems appropriate, to furnish a seal to every State-licensed master plumber. The licensee pays for the seal. It is used exclusively by that master plumber in the conduct of his or her practice, including service as a bona fide representative consistent with N.J.A.C. 13:32-3.2. The rule heading covers penalties for misuse and return of the seal, and N.J.A.C. 13:32-2.6 requires a licensee renewing as inactive to submit the pressure seal to the Board.
The seal is what makes a permit authorization letter valid. N.J.A.C. 13:32-3.3(a)2 requires the letter authorizing an employee or independent licensed master plumber to apply for a permit to have the seal of the bona fide representative affixed, and caps that letter at 60 days.
N.J.A.C. 13:32-4.2 handles the card. At the time of the biennial renewal, the Board furnishes a wallet size identification card to every licensee. The card is used exclusively by the licensee master plumber in the conduct of his or her practice. A State-licensed master plumber is required to present the identification card on request to the appropriate duly licensed inspection agency upon all applications for plumbing permits. Use of the card by anyone other than the licensee or a duly authorized agent acting on the licensee's behalf is prohibited.
The Board is currently considering a digital seals rule proposal, which it tabled at its July 24, 2025 meeting.
Sourcesdspace.njstatelib.org 1dspace.njstatelib.org 2njconsumeraffairs.gov 3
Advertising and vehicle marking under the plumbing rules
N.J.A.C. 13:32-3.1 is written in inches and it applies to every commercial vehicle used in the practice of State-licensed master plumbing.
Both sides of the vehicle must carry three things. The name of the licensed master plumber in lettering at least one inch in height. The words Plumbing license number or Plumbing Lic. # followed by the license number of the owner or qualified bona fide representative, in lettering at least one inch in height. And the name of the owner or lessee of the vehicle and the municipality from which the licensed master plumber practices, or where the licensed master plumber has a principal office, in lettering at least three inches in height. Where space is limited by the design of the vehicle or by other legally required markings, the three inch lettering must be as close to three inches as possible while staying clearly visible and readily identifiable.
Paragraph (b) covers paper. All business correspondence, invoices and stationery must display the name of the licensed master plumber, the words Plumbing license number or Plumbing Lic. # with the license number of the owner or qualified bona fide representative, and the business address including street name and number.
Paragraph (c) covers advertising. All advertising shall include the name of the licensed master plumber, the business address including street name and number, and the words Plumbing license number or Plumbing Lic. # followed by the license number.
Paragraph (d) attaches responsibility. Every State-licensed master plumber whose name, office address, place of practice or license number appears in any advertisement is presumed to have caused, permitted or approved it and is personally responsible for its content and character.
Sourcesdspace.njstatelib.org
The subcontracting disclosure most plumbing ads leave out
N.J.A.C. 13:32-3.1(e) is a sentence New Jersey requires in advertising and almost nobody publishes.
If a plumbing contractor intends to subcontract, in a calendar year, more than one-third of the work which it contracts to perform, or subcontracted in the previous calendar year more than one-third of the work which it contracted to perform, all advertising by the plumbing contractor shall state: A substantial part of the work which we undertake may be performed by independent licensed plumbing subcontractors.
Read the trigger carefully. It is not a forward looking intention only. Having crossed one third in the previous calendar year turns the disclosure on for this year's advertising, whatever the plan is now. A growing plumbing company that leaned on subs through a busy season inherits the obligation.
The scope word is advertising, which under paragraph (c) of the same rule already reaches every advertisement the licensee's name or number appears in, and paragraph (d) makes the licensed master plumber personally responsible for its content.
This pairs badly with a habit New Jersey plumbing companies do have, which is running lead generation pages and vehicle wraps that carry the trade name and nothing else. The rule asks for the licensed master plumber's name, the street address, the words Plumbing license number or Plumbing Lic. # with the number, and where the one third test is met, the subcontracting sentence.
A contractor building a website in New Jersey has a short checklist here and every item on it is a rule number, not a preference.
Sourcesdspace.njstatelib.org
What the Board does about unlicensed and misleading advertising
The Board treats advertising as practice, and it acts on it.
At its December 12, 2024 meeting the Board recorded an administrative action against an unlicensed person trading as a drain cleaning company. On July 25, 2024 the Board determined to issue an Offer of Settlement with a civil penalty of $1,000, stayed, for advertising plumbing services without the proper licensure. The person signed and returned the offer and the matter closed.
The authority sits in the Uniform Enforcement Act. N.J.S.A. 45:1-25 makes any person who engages in conduct in violation of any provision of an act or regulation administered by a board liable to a civil penalty of not more than $10,000 for the first violation and not more than $20,000 for the second and each subsequent violation. Each act in violation is a separate violation. Subsection (c) states that any action alleging the unlicensed practice of a profession or occupation shall be brought under that section, or by an action in the Superior Court where injunctive relief is sought. Subsection (d) lets a board or court order payment of costs of investigation, expert witness fees, attorney fees and transcript costs.
The Board's application overview states the underlying rule plainly. No one may practice as a master plumber or represent himself or herself as a plumber without the proper, active license, and no one may perform medical gas piping services, brazing, installing or instruction without the proper active certification.
The consumer brief the Division publishes tells homeowners to contact the Board at 973-504-6420 to make sure they are hiring a licensed master plumber.
Sourcesnjconsumeraffairs.gov 1njconsumeraffairs.gov 2njconsumeraffairs.gov 3njconsumeraffairs.gov 4
Home Improvement Contractor registration: who has to hold one
The Contractors' Registration Act is a separate obligation with its own numbers.
N.J.S.A. 56:8-138(a) states that no person shall offer to perform, or engage, or attempt to engage in the business of making or selling home improvements unless registered with the Division of Consumer Affairs. Subsection (b) makes it annual. N.J.S.A. 56:8-137 defines home improvement broadly as remodeling, altering, renovating, repairing, restoring, modernizing, moving, demolishing or otherwise improving or modifying the whole or any part of any residential or non-commercial property, and defines contractor to include a corporation, partnership, association or any other form of business organization and its officers, representatives, agents and employees.
N.J.S.A. 56:8-145 applies the Act to anyone engaging in the regulated activities in New Jersey, including persons whose residence or principal place of business is outside the State.
The exemption a plumbing company relies on is N.J.S.A. 56:8-140(c), covering any person regulated by the State as a master plumber, among others, who is acting within the scope of practice of his profession. The Division's HIC application repeats master plumbers in its exemption list.
The words that decide it are acting within the scope of practice. The Act otherwise reaches any person in the business of making or selling home improvements, and remodeling and renovating are named in the definition. A plumbing company that sells bathroom remodels, tile, framing or carpentry alongside the plumbing is doing work the plumbing scope does not describe. Neither the Board nor the Division publishes a bright line test for where the exemption stops, so a company selling mixed scopes should get that answered before it advertises.
Sourcesnjconsumeraffairs.gov 1njconsumeraffairs.gov 2
What HIC registration costs and requires
The Division prices registration on the application form itself. The fee is $110.00, nonrefundable, payable to the N.J. Division of Consumer Affairs.
Insurance is set by statute. N.J.S.A. 56:8-142(a) requires every registered contractor engaged in home improvements to secure, maintain and file with the director proof of a certificate of commercial general liability insurance in a minimum amount of $500,000 per occurrence. Subsection (b) requires a contractor whose policy is cancelled or not renewed to file the replacement certificate before the former policy lapses.
N.J.S.A. 56:8-141(a) requires a disclosure statement stating whether the applicant has been convicted of any crime in a listed set of Title 2C offences, and the application asks for full detail.
The Act carries exclusions beyond the licensed trades. N.J.S.A. 56:8-140 also excludes persons required to register under the New Home Warranty and Builders' Registration Act, owners improving their own property or a family member's, work for a bona fide charity or non-profit, employees of a community association or cooperative corporation, public utilities, and a home improvement retailer with a net worth of more than $50,000,000.
Contracts are regulated too. N.J.S.A. 56:8-151(a) requires every home improvement contract for a purchase price in excess of $500, and all changes to its terms and conditions, to be in writing. The Division's compliance checklist adds that a contract over $500 must carry the legal name, business address and registration number of the contractor plus the Division's toll-free number, 1-800-242-5846.
Sourcesnjconsumeraffairs.gov 1njconsumeraffairs.gov 2njconsumeraffairs.gov 3
HIC advertising: the prefix that is required and the word that is not allowed
N.J.S.A. 56:8-144(a) requires all registrants to prominently display their registration numbers in four places: within their places of business, in all advertisements distributed within New Jersey, on business documents, contracts and correspondence with consumers of home improvement services in New Jersey, and on all commercial vehicles registered in New Jersey and leased or owned by the registrant and used to provide home improvements. Vehicles leased or rented to customers are excepted.
Subsection (b) requires any invoice, contract or correspondence given to a consumer to prominently contain the Division's toll-free telephone number.
The format is not left open. The Division's compliance checklist states that the number must be shown as HIC reg.# followed by the registration number, in all four places, and states that the word LICENSE should not be used. A registration is not a license and the Division does not want it advertised as one.
N.J.A.C. 13:45A-17.11 carries the vehicle detail: commercial vehicles marked on both sides with the name of the registered home improvement contractor in lettering at least one inch in height and HIC reg. # followed by the registration number in one inch lettering.
N.J.S.A. 56:8-138.1 adds a badge. Every contractor required to register must possess an identification badge while performing or selling home improvements, worn plainly visible on the upper left corner of the torso when selling. The badge carries a photograph, name, registration number and business name, and it must include a statement, plainly visible when worn, that the badge is not an electrical contractor, plumbing contractor or HVACR contractor license.
N.J.S.A. 56:8-146(b) makes a knowing violation of the Act a crime of the fourth degree.
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Newark and the municipal layer
New Jersey pushes most contractor regulation to the State and then leaves permits to the municipality.
N.J.S.A. 56:8-147(a) states that the Contractors' Registration Act supersedes any municipal ordinance or regulation providing for the licensing or registration of contractors, or for the protection of homeowners by bonds or warranties required to be provided by contractors, excluding those required by water, sewer, utility or land use ordinances. Subsection (b) is the enforcement lever: no municipality shall issue a construction permit for any home improvement to any contractor who is not registered under the Act.
N.J.S.A. 56:8-148 preserves what municipalities keep. The Act does not deny a municipality the power to inspect a contractor's work or equipment, the work of a contractor performing improvements to commercial property, or the power to regulate the standards and manners in which the work is done.
Newark, the largest city, asks for the license at the counter. Its contractor permit submission guide lists a plumbing technical sheet where plumbing work is involved, a state plumbing license under drawings and contractor licensing, and a City of Newark Contractor License for commercial work.
The permit rules that reach every municipality come from the Board rather than from the city. N.J.A.C. 13:32-3.3(a)2 requires the permit to be signed by a licensed master plumber in all circumstances, and caps a letter of authorization at 60 days with the bona fide representative's seal affixed. N.J.A.C. 13:32-4.2 requires the master plumber to present the wallet identification card on request to the duly licensed inspection agency on all applications for plumbing permits.
Sourcesnjconsumeraffairs.gov 1newarknj.gov 2dspace.njstatelib.org 3dspace.njstatelib.org 4
How a customer verifies a New Jersey plumber
The Division of Consumer Affairs runs a public verification site and it covers both credentials.
The search at newjersey.mylicense.com lists Master Plumbers as a board and carries the license types a customer would need: Master Plumber, Journeyman Plumber, Apprentice Plumber, Plumber Candidate and Plumber CE Sponsor. It also lists Home Improvement Contractors as a separate searchable category, so a homeowner can check a registration and a license in the same place. The site separates a Person Search from a Business Search and states it is intended for verification only.
The Board's own application overview points licensees and the public at the Division's licensing boards page for application status and license verifications, and the Division's consumer brief tells homeowners to call the Board at 973-504-6420 to confirm they are hiring a licensed master plumber.
Two checks are worth teaching customers, because both are things New Jersey advertising is supposed to give them. The first is the license number itself, which N.J.A.C. 13:32-3.1 requires in advertising, on stationery and on both sides of a commercial vehicle, preceded by the words Plumbing license number or Plumbing Lic. #. The second is the name, since the rule requires the name of the licensed master plumber rather than only a trade name, and the verification search is built around that person.
A plumbing company whose ads carry a checkable number and the licensed master plumber's name is handing New Jersey homeowners a two minute verification. One that carries a trade name alone is asking them to guess.
Sourcesnewjersey.mylicense.com 1njconsumeraffairs.gov 2njconsumeraffairs.gov 3dspace.njstatelib.org 4