New Jersey Plumbing License Requirements
Yes. New Jersey licenses plumbers through the NJ State Board of Examiners of Master Plumbers. It issues apprentice, master and contractor credentials.
State plumber license · By BrazeJobs Team · Updated
License tiers
| Apprentice | Registered programs |
| Master | Master Plumber |
| Contractor | Master |
Requirements
| Exam | State exam |
| Renewal | 2 years |
| Continuing education | 5 hours per renewal |
| Local license | No (state license covers) |
| Board | NJ State Board of Examiners of Master Plumbers |
Exam
| Exam provider | State Board of Examiners of Master Plumbers |
Master plumber exam: age 21+, education requirements; format not in the board overview.
- Source: njconsumeraffairs.gov · checked November 6, 2026
Apprenticeship
| Registering agency | U.S. Department of Labor Office of Apprenticeship (no state agency) |
Programs register through the Office of Apprenticeship; use the Partner Finder for local sponsors.
- Source: apprenticeship.gov · checked November 6, 2026
Plumbing code
| Code in force | 2024 National Standard Plumbing Code (NJ edition) |
Plumbing subcode N.J.A.C. 5:23-3.15 uses the NSPC, not IPC or UPC.
- Source: nj.gov · checked November 5, 2026