- ME-ME stands for the Maine Master Electrician License Exam, administered through Prov for Maine's Electricians' Examining Board.
- It is a 100-question, open-book, multiple-choice test with a 4-hour limit and a 70% passing score.
- Candidates must complete a 45-hour NEC course within two years of applying, plus one of three hour-based eligibility routes.
- Wiring Methods & Materials (24%) and Wiring & Protection (19%) together make up 43 of the 100 questions.
What ME-ME Stands For
ME-ME stands for the Maine Master Electrician License Exam - the state-level credentialing test that electricians in Maine must pass to hold a master electrician license. This is a Maine-specific licensing exam tied directly to the state's electrical code adoption and Board oversight, not a generic national certification. If you've landed here searching for what the acronym means, this page walks through exactly what the exam covers, how it's administered, and what separates it from other credentials that happen to share similar letters.
For a broader orientation to the credential itself, see our companion pieces on What Is ME-ME? and ME-ME Meaning, which cover the same ground from slightly different angles.
Who Oversees the Exam
The exam sits under Maine's Electricians' Examining Board, part of the state's Office of Professional and Occupational Regulation. The Board sets eligibility rules, approves candidates before they can schedule a test date, and periodically issues bulletins that govern exam-day logistics - including which edition of the National Electrical Code is permitted in the room.
The most recent bulletin referenced by testing administrators, dated May 8, 2026 (revision MOPOR-2026.04.17), confirms that the exam is based on the softcover 2023 NEC. This is an important distinction: Maine is separately adopting the 2026 NEC for actual field installations starting July 1, 2026, but that adoption date does not change which code book you're tested on. Don't let the two dates blur together when you're prepping.
Exam Format and Question Style
The ME-ME exam is delivered as a computer-based, multiple-choice, open-book test. Here's the breakdown:
- 100 questions total
- 4-hour time limit
- 70% passing score - you need to answer 70 questions correctly
- Open-book format using the approved 2023 NEC softcover only
Because the exam is open-book, question style leans heavily on code lookup and application rather than pure memorization. That doesn't make it easy - it means questions are often structured as scenario-based problems where you need to locate the right NEC article quickly and apply it correctly under time pressure. For a full breakdown of how difficult that actually is in practice, read How Hard Is the ME-ME Exam? Complete Difficulty Guide 2026.
If you're wondering exactly how the raw score translates to a pass/fail outcome, our dedicated page on ME-ME Passing Score 2026: Exactly What You Need to Pass breaks down the 70% threshold in more detail.
Key Takeaway
Open-book doesn't mean open-ended. You still need to know where topics live in the 2023 NEC and be fast enough to look things up within a 4-hour window across 100 questions - that's roughly 2.4 minutes per question on average.
Eligibility Routes Before You Test
You can't just register and sit for the ME-ME exam - the Board must approve your eligibility first. There are three standard hour-based routes, each of which also requires 576 hours of approved study:
- 12,000 hours as a licensed helper/apprentice
- 4,000 journeyman hours
- 6,000 journeyman-in-training hours
Board-accepted comparable qualifications are also considered on a case-by-case basis for candidates whose experience doesn't fit neatly into one of the three routes above. On top of whichever route applies, you must complete a 45-hour NEC course within the two years immediately preceding your application - this is separate from the 576 hours of approved study baked into each experience route.
Once your hours and coursework are documented, the Board reviews and approves your application before you're permitted to schedule a test date. For the complete rundown of documentation and timing, see ME-ME Requirements 2026: Eligibility, Prerequisites & How to Qualify.
The 10 Exam Domains
The ME-ME exam is built from 10 content domains, each weighted by the number of questions it contributes to the 100-question total. Because the published subject counts are out of 100, the percentage weights below are exact question counts, not rounded estimates.
| 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% |
Notice that Wiring Methods & Materials and Wiring & Protection together account for 43 of the 100 questions - nearly half the exam. If you only had time to master two domains cold, these would be the two.
Wiring Methods & Materials (24%)
This is the single largest domain on the exam. Candidates need fluency with conductor types, raceway systems, box and enclosure requirements, and the specific NEC articles governing installation methods for different wiring types.
- Know where each wiring method's requirements live in the 2023 NEC so lookups are fast
- Practice distinguishing similar-sounding methods (e.g., different cable types) under time pressure
Wiring & Protection (19%)
This domain covers overcurrent protection, grounding and bonding, and conductor protection requirements - core safety-driven code sections that show up in scenario-based questions.
- Grounding/bonding distinctions are a common source of missed questions
- Overcurrent device sizing and coordination deserve dedicated review time
The remaining eight domains are smaller individually but still collectively make up more than a third of the exam. For a domain-by-domain walkthrough of what's tested in each one - including the smaller domains like Communication Systems and Special Conditions - see ME-ME Exam Domains 2026: Complete Guide to All 10 Content Areas.
Fees, Fees, and More Fees
Budgeting for the ME-ME process involves more than just the exam fee itself. Here's what candidates should plan for:
- Exam fee: $90
- Initial master license fee: $150
- Criminal-history report fee: $21
- License renewal (every two years): $150
These figures come directly from Maine's licensing structure and are specific to this credential - a full cost breakdown, including how these fees stack up across the entire path from application to renewal, is available in ME-ME Certification Cost 2026: Complete Pricing Breakdown.
What You Can and Cannot Bring
Because this is an open-book exam, the rules around materials matter a lot. Here's what's allowed and what isn't:
- Allowed: tabs, writing, highlighting, and underlining directly in your approved softcover 2023 NEC book
- Prohibited: any added or inserted material (loose notes, printed inserts, sticky-note summaries) beyond markings made directly in the book
- Prohibited: the hardcover NEC Handbook - only the softcover 2023 NEC is permitted
- Allowed: a simple four-function calculator
- Required: current government-issued photo identification
Testing is available at Prov test centers or remotely through Examroom. If your schedule shifts, cancellations or reschedules must happen at least three business days before your testing appointment - missing that window can cost you the slot. For exact scheduling windows and deadlines by testing cycle, check ME-ME Exam Dates 2026: Testing Windows, Deadlines & Scheduling.
Key Takeaway
Prep your NEC book like a study tool weeks before test day - tabbing and annotating under time pressure the morning of the exam wastes minutes you don't have in a 4-hour window.
After You Pass: Licensing and Renewal
Passing the exam is a gate, not the finish line. Once you pass, you'll pay the $150 initial master license fee plus the $21 criminal-history report fee to complete licensure. The resulting license is valid for two years, and renewal costs $150.
To keep the license current, Maine requires completion of a 15-hour NEC update course for each three-year code cycle - a separate, ongoing continuing-education obligation distinct from the 45-hour course required before your original exam application. If you're weighing whether the entire investment of hours, fees, and ongoing education pays off relative to career outcomes, Is the ME-ME Certification Worth It? Complete ROI Analysis 2026 digs into that question, and ME-ME Salary Guide 2026: Complete Earnings Analysis covers earning potential for licensed master electricians.
Holding this license also opens doors to specific employment paths - contractors, electrical firms, and municipalities across Maine that require a master electrician on staff or as a supervising signatory. Browse relevant openings and requirements in ME-ME Jobs.
Building a Domain-Weighted Study Plan
Because Wiring Methods & Materials and Wiring & Protection make up 43% of the exam, your study time should be allocated accordingly rather than split evenly across all 10 domains. A domain-weighted approach - spending roughly proportional time to each domain's question count - is far more efficient than treating every topic equally.
Wiring Methods & Materials + Wiring & Protection
- Work through NEC articles tied to both domains and tab your book as you go
- Drill scenario questions that require locating specific code sections quickly
General Electrical Knowledge + Equipment for General Use
- Review fundamentals and general equipment installation rules
- Practice timed lookups to build speed within the 4-hour limit
Remaining Six Smaller Domains
- Cover Special Equipment, Special Occupancies, Service Feeders and Branch Circuits, Motors & Controls, Special Conditions, and Communication Systems
- Run a full 100-question timed practice session to confirm pacing
For a structured, week-by-week prep framework built specifically around this exam's format and domain weights, see ME-ME Study Guide 2026: How to Pass on Your First Attempt. And if you want a single condensed reference to review the night before your test, our ME-ME Cheat Sheet 2026: One-Page Review of Must-Know Facts summarizes the highest-yield facts in one page.
You can also run realistic timed drills modeled on the actual 100-question, 4-hour format using practice questions on our main practice test platform before committing to a scheduled exam date. Working through full-length simulations on the practice site is one of the more reliable ways to confirm you're pacing correctly across all 10 domains.
Frequently Asked Questions
ME-ME stands for the Maine Master Electrician License Exam, the state licensing test overseen by Maine's Electricians' Examining Board and administered through Prov.
Yes. It's a computer-based, multiple-choice, open-book exam using the softcover 2023 NEC. The hardcover NEC Handbook is not allowed in the testing room.
The exam has 100 questions with a 4-hour time limit, and you need a 70% score to pass.
Wiring Methods & Materials (24%) and Wiring & Protection (19%) together make up 43 of the 100 questions, making them the highest-priority domains for study time.
No. You may tab, write, highlight, and underline directly in your approved softcover 2023 NEC book, but adding or inserting outside material is prohibited. A simple four-function calculator and photo ID are also required.