New Jersey — plumbing code & licensing
Verified
The code
| Code family | NSPC |
| Edition in force | 2024, NJ edition |
| Effective date | 2026-08-17 |
| Adopted by | Dept. of Community Affairs, Division of Codes and Standards (Plumbing Subcode, N.J.A.C. 5:23-3.15) |
| Adoption source | https://www.nj.gov/dca/codes/codreg/current.shtml |
| State amendments | Amendments are inside the adoption instrument; no separate document |
Licensing
| Model | state individual (master license; journeyman/apprentice registration) |
| Authority | State Board of Examiners of Master Plumbers (Division of Consumer Affairs, Dept. of Law & Public Safety) |
| Licensing source | https://www.njconsumeraffairs.gov/plu |
| License classes | https://www.njconsumeraffairs.gov/plu/Pages/FAQ.aspx |
Permits & inspections
Not yet recorded.
How this record was verified
| Adoption | Sources conflict |
| Amendments | Verified |
| Licensing | Verified |
| Permits & inspections | Not yet verified |
Working notes
New Jersey's plumbing subcode is the National Standard Plumbing Code, not the IPC/UPC. The DCA Current Construction Codes page (read firsthand) lists the Plumbing Subcode (N.J.A.C. 5:23-3.15) as National Standard Plumbing Code/2024, NJ ed. CONFLICT RECORDED, NOT SMOOTHED: the N.J.A.C. 5:23-3.15 text as republished by Justia (current through Register Vol. 57 No. 12, June 16, 2025) still adopts the National Standard Plumbing Code Illustrated/2021; the admin-code republication lags the DCA adoption of the 2024 NJ edition (adoption date Aug. 17, 2026 per DCA). Licensing: the Board licenses master plumbers; journeyman and apprentice plumbers register with the Board rather than holding licenses (N.J.S.A. 45:14C).
Reference only. Compiled from the cited official sources as of the date shown; adoptions and rules change. Confirm with the authority having jurisdiction before designing or permitting work.