New Mexico Plumbing License Requirements
Yes. New Mexico licenses plumbers through the NM RLD Construction Industries Division, Mechanical Bureau. It issues apprentice, journeyman and contractor credentials.
State plumber license · By BrazeJobs Team · Updated
License tiers
| Apprentice | Registered |
| Journeyman | Journeyman Plumber (JP) |
| Master | No state license (Qualifying Party) |
| Contractor | Plumbing/mechanical contractor with qualifying party |
Requirements
| Exam | PSI exams |
| Continuing education | Required |
| Local license | No (state license covers) |
| Board | NM RLD Construction Industries Division, Mechanical Bureau |
Exam
| Exam provider | PSI (for Construction Industries Division) |
| Questions | MM-1 Plumbing: 100; Journeyman plumber: 70 |
| Time | MM-1: 250 minutes; JP: 185 minutes |
| Passing score | 75% |
PSI instructions for the Construction Industries Division; NM Business and Law: 50 questions, 130 minutes, 75%. Some exams closed book, some open book.
- Source: proctor2.psionline.com · checked November 6, 2026
Licensed in another state or the military
| Military spouses | Expedited licensure for service members, veterans, spouses and dependents with same-level license in good standing; fees waived 3 years |
- Source: rld.nm.gov · checked November 6, 2026
Apprenticeship
| Registering agency | State Apprenticeship Agency |
- Source: apprenticeship.gov · checked November 6, 2026
Plumbing code
| Code in force | 2024 New Mexico Plumbing Code (NMAC 14.8.2) |
Effective Aug 1, 2026; permits may use the 2021 code until Jan 1, 2027, then only the 2024 code.
- Source: rld.nm.gov · checked November 5, 2026