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2026 Statistics

Key Facts: MA Plumber Exam

70%

Passing Score

MA Board of Examiners

~100

Exam Questions

State exam format

248 CMR

Code Base

UPC-derived

$83

Total Exam Fee

$31 + $52

The Massachusetts journeyman plumber exam is administered by the Board of State Examiners of Plumbers and Gas Fitters. The exam has approximately 100 questions based on the Massachusetts State Plumbing Code (248 CMR, based on UPC) and requires 70% to pass. Massachusetts is one of the few states that uses a UPC-derived code rather than the IPC. The exam also covers gas fitting, which is combined with plumbing licensing in MA.

About the MA Plumber Exam

Massachusetts journeyman plumber licensing exam administered by the Board of State Examiners of Plumbers and Gas Fitters. State-administered exam based on the Massachusetts State Plumbing Code (248 CMR, derived from the Uniform Plumbing Code). Covers drainage systems, water supply, venting, fixtures, gas fitting, materials, and Massachusetts-specific plumbing regulations. Approximately 100 multiple-choice questions.

Questions

100 scored questions

Time Limit

4 hours

Passing Score

70%

Exam Fee

$83 (Massachusetts Board of State Examiners of Plumbers and Gas Fitters)

MA Plumber Exam Content Outline

25%

Drainage Systems

Drain pipe sizing, fixture unit calculations, slope requirements, cleanouts, building sewers, indirect waste, and special drainage per 248 CMR

20%

Water Supply Systems

Water pipe sizing, fixture unit calculations, backflow prevention, pressure regulation, water heaters, cross-connection control per Massachusetts code

20%

Venting Systems

Vent sizing, wet venting, circuit venting, air admittance valves, vent termination, combination waste and vent, and trap protection per 248 CMR

15%

Gas Fitting

Gas pipe sizing, BTU calculations, appliance venting, pressure testing, combustion air, gas leak detection, and MA gas fitting regulations

10%

Fixtures & Appliances

Fixture installation, clearances, accessible fixtures, commercial fixtures, water closets, lavatories, showers, and bathtubs per 248 CMR

10%

Code Administration & Materials

Permits, inspections, plan review, approved materials, pipe materials, joint methods, and Massachusetts-specific 248 CMR regulations

How to Pass the MA Plumber Exam

What You Need to Know

  • Passing score: 70%
  • Exam length: 100 questions
  • Time limit: 4 hours
  • Exam fee: $83

Keys to Passing

  • Complete 500+ practice questions
  • Score 80%+ consistently before scheduling
  • Focus on highest-weighted sections
  • Use our AI tutor for tough concepts

MA Plumber Study Tips from Top Performers

1Study 248 CMR (Massachusetts State Plumbing Code) — it is UPC-based, NOT IPC, which differs significantly in fixture unit values and sizing methods
2Master fixture unit calculations per 248 CMR — values may differ from IPC tables
3Review gas fitting requirements thoroughly since MA combines plumbing and gas fitting licensing
4Practice vent sizing using Massachusetts code tables — wet venting rules differ from IPC
5Study backflow prevention requirements and cross-connection control per Massachusetts regulations
6Review water heater installation requirements including T&P relief valve discharge per 248 CMR
7Understand Massachusetts-specific regulations on materials approvals and inspection requirements
8Practice gas pipe sizing calculations using BTU input ratings per Massachusetts fuel gas code

Frequently Asked Questions

How hard is the Massachusetts journeyman plumber exam?

The Massachusetts journeyman plumber exam is challenging with an estimated 50-60% pass rate. The exam has approximately 100 questions based on the Massachusetts State Plumbing Code (248 CMR) and requires 70% to pass. Massachusetts combines plumbing and gas fitting licensing, so the exam covers both disciplines.

What plumbing code does Massachusetts use?

Massachusetts uses 248 CMR, the Massachusetts State Plumbing Code, which is derived from the Uniform Plumbing Code (UPC) — not the IPC used by most other states. This is a critical distinction for candidates who have studied in IPC states. The gas fitting portions are also covered under Massachusetts regulations.

How much does the Massachusetts plumber exam cost?

The Massachusetts journeyman plumber exam costs approximately $83 total — $31 application fee plus $52 exam fee. Additional costs include the 248 CMR code book. Check with the Board of State Examiners of Plumbers and Gas Fitters for the current fee schedule.

Does the Massachusetts plumber license include gas fitting?

Yes, Massachusetts combines plumbing and gas fitting into a single license. The Board of State Examiners of Plumbers and Gas Fitters oversees both disciplines. The journeyman plumber exam includes gas fitting questions, and the license authorizes both plumbing and gas fitting work.