- What Is the ME-ME Exam?
- Who Administers It - and Who Takes It
- Exam Format and Question Style
- The 10 Content Domains
- Eligibility Routes to Sit the Exam
- Registration, Fees, and Scheduling Mechanics
- What You Can (and Can't) Bring to Test Day
- After You Pass: Licensing and Renewal
- Mapping a Study Plan to Maine's Domain Weights
- Frequently Asked Questions
- ME-ME is the Maine Master Electrician License Exam, administered through Prov for the Maine Electricians' Examining Board.
- The exam is 100 questions in 4 hours, open-book, with a 70% passing score.
- Wiring Methods & Materials (24%) and Wiring & Protection (19%) together make up 43 of the 100 questions.
- Eligibility runs through 12,000 helper/apprentice hours, 4,000 journeyman hours, or 6,000 journeyman-in-training hours, plus 576 hours of approved study.
What Is the ME-ME Exam?
ME-ME stands for the Maine Master Electrician License Exam, the credentialing test administered on behalf of Maine's Electricians' Examining Board, which sits within the state's Office of Professional and Occupational Regulation. Passing this exam is the gatekeeping step for electricians in Maine who want to hold a master electrician license - the top tier of licensure that allows an individual to design, supervise, and take full legal responsibility for electrical installations without a supervising master on record.
If you've seen "ME-ME" used elsewhere to describe a different profession's exam, that's a separate credential with a coincidentally similar abbreviation. Everything on this site, including this article, refers specifically to Maine's master electrician licensing exam. For a broader definitional breakdown, see our companion pieces on ME-ME Meaning and What Does ME-ME Stand For?
Who Administers It - and Who Takes It
The Maine Electricians' Examining Board sets the licensing requirements and content standards; test delivery itself is handled by Prov, the third-party testing vendor. Candidates sit for the exam either at a Prov-operated test center or remotely through Examroom, giving licensed apprentices and journeymen in more rural parts of the state flexibility in how they test.
Candidates pursuing ME-ME are typically journeyman electricians who have logged the required field hours and want to move into master-level work - supervising crews, pulling permits under their own name, and taking on commercial or industrial projects that require a master electrician of record. Employers hiring for lead electrician, project supervisor, or electrical contracting roles in Maine frequently list master licensure as a hard requirement. For a look at how this credential can affect career trajectory, see our ME-ME Salary Guide 2026: Complete Earnings Analysis and Is the ME-ME Certification Worth It? Complete ROI Analysis 2026.
Exam Format and Question Style
The ME-ME exam is computer-based and multiple-choice, delivered as an open-book test: 100 questions, 4 hours, passing score of 70%. That open-book structure changes the skill being tested - it's less about memorizing code verbatim and more about knowing exactly where to find and correctly apply the relevant NEC section under time pressure.
Because the clock keeps running while you flip through the code book, speed of navigation matters as much as electrical knowledge. Candidates who tab their reference book strategically and practice locating sections quickly tend to move through the 100 questions with time to spare for double-checking calculations.
Key Takeaway
Open-book doesn't mean easy - it means the exam rewards fast, accurate code navigation over rote recall. Build that skill in practice sessions, not on test day. For a deeper breakdown of exactly what "passing" requires, read ME-ME Passing Score 2026: Exactly What You Need to Pass.
The 10 Content Domains
The Board publishes ME-ME content weighting across ten domains, each expressed as a percentage of the 100-question exam. Because the counts are published out of 100, the percentage below is also the literal number of questions from that domain you'll see on your exam.
| Domain | Weight |
|---|---|
| Wiring Methods & Materials | 24% |
| Wiring & Protection | 19% |
| General Electrical Knowledge | 15% |
| Equipment for General Use | 15% |
| Special Equipment | 7% |
| Special Occupancies | 6% |
| Service Feeders and Branch Circuits | 4% |
| Motors & Controls | 4% |
| Special Conditions | 4% |
| Communication Systems | 2% |
Two domains - Wiring Methods & Materials and Wiring & Protection - account for 43 of the 100 questions combined. That's nearly half your exam sitting in just two content areas, which should shape how you allocate study hours long before you allocate anything else.
Wiring Methods & Materials (24%)
The single largest domain on the exam. Candidates need fluency in conductor types, raceway and cable systems, box and enclosure sizing, and installation methods across different occupancy types.
- Practice locating box-fill and conduit-fill tables quickly in your code book
Wiring & Protection (19%)
Covers overcurrent protection, grounding and bonding, and conductor protection requirements - areas where master-level exam questions often layer multiple code sections into one scenario.
- Cross-reference grounding/bonding sections since they're frequently tested together
For a full domain-by-domain breakdown with subtopics inside each area, see ME-ME Exam Domains 2026: Complete Guide to All 10 Content Areas. If you're trying to gauge overall difficulty before committing study time, How Hard Is the ME-ME Exam? Complete Difficulty Guide 2026 walks through what makes this exam challenging beyond raw content volume.
Eligibility Routes to Sit the Exam
Maine doesn't allow candidates to simply register and test - the Board must approve eligibility first. There are three standard hour-based routes, plus a Board-accepted comparable qualifications path for candidates whose experience doesn't fit neatly into the standard categories:
- 12,000 hours as a licensed helper/apprentice
- 4,000 hours as a journeyman electrician
- 6,000 hours as a journeyman-in-training
Each of these routes also requires 576 hours of approved study. On top of the hours-based track, licensing requires completion of a 45-hour NEC course finished within the two years immediately preceding your application - so timing that coursework matters as much as completing it.
For the full documentation checklist and how each hour-tracking route works in practice, see ME-ME Requirements 2026: Eligibility, Prerequisites & How to Qualify.
Registration, Fees, and Scheduling Mechanics
The exam fee is $90, paid separately from licensing costs. Once you pass, the initial master license costs $150, plus a $21 criminal-history report fee. These are distinct line items, and candidates budgeting for the full path to licensure should account for both the testing fee and the post-pass licensing fees. A detailed cost breakdown, including how these fees stack against renewal costs, is available in ME-ME Certification Cost 2026: Complete Pricing Breakdown.
Retakes are permitted within the two-year testing window tied to your Board approval, so a failed attempt doesn't require restarting the eligibility process from scratch - but it does mean you're working against a clock. Cancellations or reschedules must happen at least three business days before your scheduled test session. For the mechanics of test dates and how the scheduling window lines up with Board approval, see ME-ME Exam Dates 2026: Testing Windows, Deadlines & Scheduling.
Key Takeaway
Because the exam fee and licensing fee are separate, and retakes fall inside a two-year window, plan your first attempt seriously rather than treating it as a low-stakes trial run.
What You Can (and Can't) Bring to Test Day
ME-ME's open-book format comes with specific rules about your reference material and tools:
- The exam is based on the softcover 2023 NEC - the hardcover NEC Handbook is explicitly prohibited
- Pre-exam tabs, writing, highlighting, and underlining inside the approved code book are allowed
- Adding or inserting extra material (loose notes, printed summaries, sticky pages) into the book is prohibited
- A simple four-function calculator is permitted - scientific or programmable calculators are not part of the allowed toolkit
- Current government-issued photo identification is required to check in
This is worth internalizing early: the exam bulletin (Board-linked, dated May 8, 2026, revision MOPOR-2026.04.17) is specific about the softcover-only requirement, so don't invest study time marking up a handbook edition you won't be allowed to bring in.
After You Pass: Licensing and Renewal
Passing the exam is the testing milestone, but the license itself is a separate administrative step involving the $150 initial fee and $21 criminal-history report. Once issued, a Maine master electrician license is valid for two years, with renewal also costing $150.
Ongoing competency isn't a one-time event either - license holders must complete a Board-required 15-hour NEC update course for each three-year code cycle, keeping working master electricians current as code editions change. This is distinct from the 45-hour course required before initial application.
To see how this credential translates into real job opportunities across Maine's electrical trade, browse ME-ME Jobs and our overview of ME-ME Training pathways that feed into eligibility.
Mapping a Study Plan to Maine's Domain Weights
Generic study advice ("study a little every day," "use flashcards") isn't wrong, but it's not specific enough to be useful for a 100-question, domain-weighted exam like this one. The more productive approach is to let the domain percentages dictate your calendar.
Wiring Methods & Materials + Wiring & Protection
- These two domains alone cover 43 questions - start here so the heaviest content gets the most repetition
- Build your code-book tab system while reviewing these sections
General Electrical Knowledge + Equipment for General Use
- Both sit at 15% - treat them as a matched pair for review sessions
- Practice timed lookups since these areas often hinge on quick table references
Special Equipment, Special Occupancies, Service Feeders
- Mid-weight domains (4-7%) that still add up to meaningful point totals
- Focus on distinguishing occupancy-specific rules from general rules
Motors & Controls, Special Conditions, Communication Systems
- Lowest-weighted domains (2-4%) - review but don't over-invest time here
- Run full-length timed practice sets to simulate the 4-hour window
This isn't about generic time-boxing techniques - it's about respecting that nearly half the exam lives in two domains, so your calendar should reflect that math from day one. For a structured week-by-week walkthrough with more detail, see ME-ME Study Guide 2026: How to Pass on Your First Attempt, and for a compact review reference once you're closer to test day, check the ME-ME Cheat Sheet 2026: One-Page Review of Must-Know Facts.
Running full-length timed practice sessions on our practice test platform before your real exam date is one of the most direct ways to confirm you can navigate the softcover NEC fast enough within the 4-hour limit. Repeated exposure to ME-ME-style multiple-choice scenarios on the practice site also helps surface which of the ten domains still need review.
Frequently Asked Questions
In the context of this site, ME-ME refers to the Maine Master Electrician License Exam, administered for the Maine Electricians' Examining Board via the Prov testing platform.
Yes. It's a computer-based, multiple-choice, open-book exam of 100 questions in 4 hours, with a 70% passing score, and it references the softcover 2023 NEC specifically.
No. The hardcover NEC Handbook is prohibited; only the softcover 2023 NEC is allowed, and only pre-exam tabs, writing, highlighting, and underlining inside that book are permitted.
Retakes are permitted within the two-year testing window established by your Board approval, so you don't need to restart the entire eligibility process after a failed attempt within that window.
Wiring Methods & Materials (24%) and Wiring & Protection (19%) together account for 43 of the 100 questions, making them the highest-priority domains for study time by a wide margin.