Requirements, license levels, and the issuing authority — sourced from New Jersey's official board.
New Jersey's statewide license is the Master Plumber credential; journeyman/apprentice are worked-toward classifications, not standalone state licenses.
| Requirements | Master Plumber: at least 21 years old; ~5 years in the trade (four years in a US DOL registered apprenticeship plus one year as a journeyman), or an accredited engineering degree plus one year installing plumbing; pass the three-part master plumber exam (trade, business & law, practical, 70% each); $3,000 bond. |
| Reciprocity | Not stated on the official board page. |
| Renewal | Biennial (every two years); renewal attestation of continuing education for the prior biennial period. |
| Notes | New Jersey's statewide license is the Master Plumber credential; journeyman/apprentice are worked-toward classifications, not standalone state licenses. |
Sources: www.njconsumeraffairs.gov · www.njconsumeraffairs.gov. Always confirm current requirements with the issuing authority.
New licenses, ladder upgrades, classification changes and lapses, by market and credential tier. Read the quarterly free, or license the underlying data.