- Who Can Sit for the MA-MP Exam
- Journeyman License & Experience Requirements
- The 110-Hour Tier Five Education Requirement
- The Online Application Process
- Fees You'll Pay to Qualify
- What You're Qualifying To Take
- Scoring, Retakes, and Validity Periods
- Veteran's Examination Credit
- After You Pass: Licensing and Renewal
- Mapping Out Your Qualification Timeline
- FAQ
- You need an active MA journeyman plumber license plus 1 year and 1,700 hours of qualifying work before applying.
- The Board-approved 110-hour Tier Five education is mandatory unless already completed as an apprentice.
- Applying costs a $31 application fee; sitting for the exam costs $80 per attempt, per part combination.
- Both Part I (80 questions/160 minutes) and Part II (40 questions/160 minutes) require a 70% minimum score, scored independently.
Who Can Sit for the MA-MP Exam
The Massachusetts Master Plumber License Exam (MA-MP) is administered through the Massachusetts Board of State Examiners of Plumbers and Gas Fitters under the Division of Occupational Licensure, with PSI Services LLC handling test delivery. Before you can even schedule a seat, you have to clear a specific set of eligibility hurdles set by the Board - this isn't an exam you can walk into with a general trades background. If you're still trying to understand what the credential actually represents, What Is MA-MP? and MA-MP Meaning are good starting points before you dig into the requirements below.
In short, eligibility comes down to three pillars: an active Massachusetts journeyman plumber license, a documented amount of qualifying field experience, and completion of the Board's Tier Five education. Miss any one of these and your application will stall at the Board-approval stage, regardless of how well you might score on the exam itself.
Journeyman License & Experience Requirements
To qualify for the master plumber exam, you must currently hold a Massachusetts journeyman plumber license and have accumulated at least one year and 1,700 hours of qualifying work performed while licensed at that journeyman level. This isn't cumulative trade experience from every job you've ever held - it specifically refers to hours worked under an active MA journeyman license, and the Board verifies this during the application review.
- The 1,700-hour threshold is tracked against your journeyman licensure period, not your total years in the trade.
- Work performed before you were licensed as a journeyman in Massachusetts generally does not count toward this requirement.
- Experience verification is submitted as part of the online application, so keep employer records, pay stubs, or supervisor attestations organized well before you apply.
If you're weighing whether pursuing the master license is worth the time investment on top of your journeyman work, Is the MA-MP Certification Worth It? Complete ROI Analysis 2026 walks through the career case in more detail, and MA-MP Jobs covers where master-licensed plumbers typically find expanded opportunities.
The 110-Hour Tier Five Education Requirement
Alongside the experience requirement, candidates must complete the Board-approved 110-hour Tier Five education curriculum. This tiered education system builds on the code and trade knowledge developed at earlier license levels, and Tier Five specifically targets the advanced regulatory, gas, and system-design knowledge a master plumber is expected to apply on the job - and, not coincidentally, on the exam.
One detail that trips up applicants: if you already completed Tier Five education during your apprenticeship, you do not need to repeat it. The Board recognizes prior completion, so it's worth digging through your apprenticeship training records before enrolling in a duplicate course and spending money you don't need to spend.
Key Takeaway
Check your apprenticeship transcripts for Tier Five completion before registering for a new 110-hour course - duplicate enrollment is a common and avoidable expense.
The Online Application Process
Once your journeyman hours and Tier Five education are documented, the application itself is completed online. The Board's process requires:
- Verification of your qualifying experience and education, typically confirmed with supporting documentation you upload during the application.
- A notarized CORI acknowledgement - this needs to be signed in front of a notary, so factor in scheduling time.
- A passport-style photo meeting the Board's specifications.
- Final review and approval by the Board before you're cleared to schedule your exam through PSI.
Because approval has to happen before scheduling, applicants who wait until close to a desired exam window sometimes find themselves unable to test as soon as they'd like. Building in buffer time between submitting your application and your target exam date is one of the simplest ways to avoid unnecessary delay - a point covered in more scheduling detail in MA-MP Exam Dates 2026: Testing Windows, Deadlines & Scheduling.
Fees You'll Pay to Qualify
Qualifying for and sitting the MA-MP exam involves several distinct fees, each tied to a different stage of the process. Confusing these - or assuming one fee covers everything - is a common source of frustration.
| Fee | Amount | When It Applies |
|---|---|---|
| Application fee | $31 | Submitted with your online eligibility application |
| Examination administration fee | $80 | Each initial attempt or retake scheduled through PSI |
| Initial license fee | $78 | Paid once you pass and are issued the master license |
| Renewal fee | $78 | Every two years, by May 1 of even-numbered years |
For a full breakdown of how these fees stack up against related costs like continuing education, see MA-MP Certification Cost 2026: Complete Pricing Breakdown.
What You're Qualifying To Take
Once the Board approves your application, you'll schedule the exam itself, which is split into two independently timed and scored parts:
Part I - Written (80 questions, 160 minutes)
Covers twelve domains spanning code, systems, and installation knowledge. Domain 2, Gas Piping, Equipment, and Appliances, is the single largest domain in the entire exam at 21 of 80 items.
- Domain 1: General Regulations, Inspections, and Permits (9 items)
- Domain 2: Gas Piping, Equipment, and Appliances (21 items)
- Domain 3: Venting (12 items)
- Domains 4-12: Traps and Cleanouts, Fixtures/Equipment/Clearances, Water Heaters, Piping/Valves/Controls, Water Supply, Hangers and Supports, Drain-Waste-Vent, Separators/Interceptors/Grease Traps, and Joints and Connections (remaining 38 items combined)
Part II - Practical (40 questions, 160 minutes)
Focused on applied calculations and system analysis. Isometric Analysis is the largest domain in this section at 20 of 40 items.
- Domain 13: Isometric Analysis (20 items)
- Domain 14: General Trade Calculations (5 items)
- Domain 15: Gas Piping (7 items)
- Domain 16: Gas Venting (8 items)
Together, the two parts total 120 questions across 320 minutes - but that time is not interchangeable between sections; each part has its own fixed 160-minute clock. For a domain-by-domain breakdown of what each of the 16 content areas actually tests, read MA-MP Exam Domains 2026: Complete Guide to All 16 Content Areas.
Both parts are closed-book, computer-generated exams. No reference books are permitted in the testing center - you're expected to know 248 CMR 10.00-10.23 (the Massachusetts Uniform State Plumbing Code, 2023), applicable 2021 and 2014 sections of 248 CMR, NFPA 54 (National Fuel Gas Code, 2012), NFPA 58 (Liquefied Petroleum Gas Code, 2011), and MGL Chapter 142 well enough to apply them without a lookup. A silent, non-printing, non-programmable calculator without alphabet keys is allowed, and PSI provides scratch paper at the testing center.
Scoring, Retakes, and Validity Periods
A minimum score of 70% is required on each part independently - scoring above 70% on Part I doesn't offset a lower score on Part II. The exact scoring mechanics, including how the passing threshold applies across domains, are explained further in MA-MP Passing Score 2026: Exactly What You Need to Pass.
If you pass one part but not the other, you don't have to retake the part you passed - that passing score remains valid for one year, and you only need to retest the failed part within that window. Attempts at the master level are unlimited under the current bulletin, so there's no cap on retries, but each attempt (initial or retake) carries its own $80 administration fee. If you want to see how these mechanics compare against overall outcomes for candidates, MA-MP Pass Rate 2026: What the Data Shows is a useful companion read.
Veteran's Examination Credit
Eligible veterans receive a five-percent examination credit as outlined in the PSI bulletin, applied upon submission of DD214 documentation with the application. This is a meaningful benefit for qualifying candidates and is worth confirming early in the application process rather than after you've already scheduled a test date, since documentation needs to be verified alongside your other eligibility materials.
After You Pass: Licensing and Renewal
Passing both parts doesn't automatically issue your license - you'll pay the $78 initial license fee, and your credential is then managed through the state's eLIPSE licensing system going forward. Master plumber licenses renew biennially, due by May 1 of even-numbered years, with a $78 renewal fee and a requirement of 12 hours of approved continuing education per two-year cycle.
Because renewal is tied to CE completion rather than a one-time exam pass, it's worth thinking about your master license as an ongoing professional obligation, not a single milestone. If you're mapping out how this credential fits into your broader career and earning trajectory, MA-MP Salary Guide 2026: Complete Earnings Analysis and MA-MP Certification both provide useful context.
Mapping Out Your Qualification Timeline
Because eligibility for the MA-MP exam depends on accumulated hours, completed education, and Board processing time - not just study readiness - it helps to plan backward from your target exam date rather than forward from "whenever I feel ready."
Confirm Eligibility Basics
- Verify your journeyman license is active and tally your qualifying hours toward the 1,700-hour, one-year threshold.
- Check apprenticeship records for existing Tier Five completion before enrolling in a new course.
Complete Documentation
- Finish or confirm your 110-hour Tier Five education.
- Gather employer verification records and schedule your notarized CORI acknowledgement.
Submit and Wait for Approval
- File the online application with the $31 fee, photo, and notarized CORI form.
- Track Board approval status before attempting to schedule with PSI.
Study by Domain Weight
- Prioritize Gas Piping, Equipment, and Appliances (21 items) and Isometric Analysis (20 items) given their outsized share of each part.
- Use closed-book practice conditions since no references are allowed in the testing center.
If you want a more detailed, week-by-week breakdown of how to allocate study time once you're approved to test, MA-MP Study Guide 2026: How to Pass on Your First Attempt goes deeper into sequencing, and running full-length practice tests under timed, closed-book conditions is one of the most direct ways to confirm you're ready for both the written and practical formats before your scheduled date.
Frequently Asked Questions
Yes. An active Massachusetts journeyman plumber license is a baseline eligibility requirement, along with at least one year and 1,700 hours of qualifying work performed under that license.
No. If Tier Five education was already completed during your apprenticeship, you are not required to repeat it for master plumber eligibility.
Your passing score on the completed part remains valid for one year. You only need to retake the failed part within that window; the passed part does not need to be repeated.
No. Attempts at the master level are unlimited under the current bulletin, though each attempt requires its own $80 examination administration fee.
No. Both parts are closed-book, and reference materials are not permitted in the testing center. Only a silent, non-printing, non-programmable calculator without alphabet keys is allowed; PSI supplies scratch paper.