Massachusetts Plumbing License Requirements
Yes. Massachusetts licenses plumbers through the MA Board of State Examiners of Plumbers and Gas Fitters. It issues apprentice, journeyman, master and contractor credentials.
State plumber license · By BrazeJobs Team · Updated
License tiers
| Apprentice | Registered apprentice |
| Journeyman | State license (3 years as apprentice) |
| Master | State license (1 year as journeyman + 100 hours theory) |
| Contractor | Master |
Requirements
| Journeyman experience | 3 years as registered apprentice |
| Classroom hours | 300 hours theory |
| Exam | State exam |
| Renewal | 2 years |
| Local license | No (state license covers) |
| Board | MA Board of State Examiners of Plumbers and Gas Fitters |
Licensed in another state or the military
| Military experience credit | Yes: relevant military education, training and service accepted toward qualifications (VALOR Act) |
| Military spouses | Expedited licensure for out-of-state licensed spouses relocated by military transfer |
Active-duty licenses stay valid until 90 days after release; VALOR Act II waives the state share of the initial fee for veterans and qualifying applicants.
- Source: mass.gov · checked November 6, 2026
Apprenticeship
| Registering agency | State Apprenticeship Agency (Massachusetts Division of Apprentice Standards) |
- Source: apprenticeship.gov · checked November 6, 2026
- Source: mass.gov · checked November 6, 2026
Plumbing code
| Code in force | Massachusetts Uniform State Plumbing Code (state code, 248 CMR 10.00) |
- Source: mass.gov · checked November 5, 2026