- The Passing Score, Stated Plainly
- Exam Format and What "Open-Book" Actually Means
- How the Three Domains Relate to Your Score
- Fees, Eligibility, and Scheduling Mechanics
- What You Can and Cannot Bring to the Test
- If You Don't Pass: Retake Rules and Waiting Periods
- A Domain-Focused Prep Timeline
- After You Pass: Licensing and Renewal
- Frequently Asked Questions
- The Montana Master Electrician License Exam requires a 75% passing score on 80 multiple-choice questions.
- You get 240 minutes, and the exam is open-book with strictly limited references.
- Only NEC 2020, Printreading Based on the 2020 NEC, and Montana Building Codes Amendments are approved materials.
- A second failure requires a six-month wait plus an eight-hour code seminar before retesting.
The Passing Score, Stated Plainly
If you're preparing for the Montana Master Electrician License Exam (MT-ME), the number that matters most is 75%. The Montana State Electrical Board, operating under the Department of Labor and Industry, sets the passing score for the exam at 75% correct answers out of 80 total multiple-choice questions. Testing itself is administered by PSI Services LLC at approved computer-based testing centers.
That means you need roughly 60 correct answers out of 80 to pass, though PSI and the Board report results as a scaled pass/fail outcome rather than a raw score breakdown you can review question-by-question. There's no partial credit for domain performance - you either clear 75% overall or you don't, and a strong showing in one content area can't be officially separated from a weak showing in another when the Board tallies your result.
Exam Format and What "Open-Book" Actually Means
The MT-ME is a computer-based, multiple-choice, open-book examination. Eighty questions, 240 minutes, administered through PSI. The Board-linked PSI candidate information bulletin - last updated June 21, 2022 - confirms this is the Master Electrician 2020 examination, tied to the NEC 2020 edition, which the Board designated as effective June 10, 2022.
"Open-book" on this exam does not mean you can bring in whatever study materials you like. It means you're permitted to consult a short, specific list of approved references while answering questions - nothing more. This distinction trips up candidates who assume open-book equals low-stakes. It doesn't. You still need to know where information lives inside the NEC and how to apply it under time pressure, because flipping through an unfamiliar code book during a timed exam is one of the fastest ways to run out of minutes.
For a full breakdown of how PSI structures question difficulty and pacing expectations, see How Hard Is the MT-ME Exam? Complete Difficulty Guide 2026.
How the Three Domains Relate to Your Score
The exam draws its 80 questions from three subject areas identified by the Board and PSI bulletin. Understanding what each domain covers - and roughly how it behaves on test day - is more useful than chasing a hypothetical percentage breakdown, since Montana does not publish domain-level weighting.
Domain 1: National Electrical Code
This is the backbone of the exam. Questions test your ability to locate and apply specific NEC 2020 article requirements, not just recall general rules.
- Article navigation speed under time pressure
- Correctly applying exceptions and conditional language
- Cross-referencing related articles (e.g., grounding and bonding tied to service requirements)
Domain 2: General Trade Knowledge & Theory
Covers the practical and theoretical foundation a master-level electrician is expected to have beyond rote code lookup.
- Circuit theory, motor controls, and equipment application
- Safe work practices and industry-standard terminology
- Interpreting scenario-based questions that combine theory with code compliance
Domain 3: Major Load Calculations
Arguably the most time-intensive domain on a per-question basis, since calculations require setup, not just recall.
- Service and feeder load calculations
- Demand factors and optional calculation methods
- Sizing conductors and overcurrent protection based on calculated loads
Because Montana doesn't publish official weighting for these three areas, treat all of them as equally capable of deciding your outcome. A deeper walkthrough of each domain's practical scope is available in MT-ME Exam Domains 2026: Complete Guide to All 3 Content Areas.
Key Takeaway
Load calculation questions typically take longer to work through than code-lookup questions. Budget extra minutes for Domain 3 rather than assuming a flat three-minutes-per-question pace across the whole exam.
Fees, Eligibility, and Scheduling Mechanics
Before the passing score matters, you have to actually get scheduled - and Montana's process has a specific sequence. Board approval comes first; PSI scheduling happens only after that approval. The exam fee is $85, separate from the $190 master application fee charged for the license itself.
- Standard eligibility: 8,000 hours of legally obtained, verified journeyman-level experience, with no more than 50% of that experience in residential work.
- Alternative eligibility: an accredited electrical-engineering degree plus 2,000 practical electrical hours.
- Applicants submit experience documentation, education records, and license verification as applicable to their path.
- A substantial-equivalency route exists for candidates holding a qualifying active, unrestricted out-of-state license.
Once approved, you'll need to bring your Board admission letter and valid government-issued photo identification to the PSI testing center - no admission letter, no exam, regardless of how well you know the material. The $85 fee stays valid for one year, and cancellations or reschedules must happen at least two days before your appointment or you risk forfeiting it.
For the full documentation checklist and hour-tracking requirements, see MT-ME Requirements 2026: Eligibility, Prerequisites & How to Qualify. A complete fee-by-fee cost breakdown is covered in MT-ME Certification Cost 2026: Complete Pricing Breakdown.
What You Can and Cannot Bring to the Test
The approved-reference list is short and strictly enforced. Bring anything outside this list and it either gets confiscated at check-in or flagged during testing.
| Allowed | Prohibited |
|---|---|
| NEC 2020 (factory markings, highlights, and factory-installed tabs permitted) | Personal handwritten notes |
| Printreading Based on the 2020 NEC | Personal highlighting or underlining added by the candidate |
| Montana Building Codes Amendments | Personal tabs added by the candidate |
| On-screen calculator or an approved silent, battery-operated, nonprogrammable, nonprinting calculator without an alphabetic keyboard | Any added papers of any kind |
If You Don't Pass: Retake Rules and Waiting Periods
Missing the 75% threshold isn't the end of the road, but Montana's retake policy escalates quickly if failures repeat, so it's worth understanding before you sit the exam the first time.
- Second failure: wait six months, then complete an approved eight-hour code seminar before retesting.
- Third or subsequent failure: wait one full year, reapply, and complete two separate eight-hour seminars before retesting.
These waiting periods make first-attempt preparation far more valuable than a "just retake it" mindset. A six-month or one-year delay affects your ability to work as a licensed master electrician and to bid or sign off on work that requires that credential. For a realistic sense of how candidates typically perform and where they lose points, review MT-ME Pass Rate 2026: What the Data Shows.
A Domain-Focused Prep Timeline
Generic study techniques only help if you point them at the right material at the right time. Here's a domain-sequenced approach built around the MT-ME's actual structure rather than a one-size-fits-all study calendar.
National Electrical Code Fluency
- Drill article navigation speed using your factory-tabbed NEC 2020
- Build a mental map of where grounding, services, and overcurrent protection rules live
- Time yourself locating specific article numbers from practice prompts
General Trade Knowledge & Theory
- Review circuit theory, motor control logic, and equipment application scenarios
- Practice scenario-based questions that blend theory with a code citation
- Revisit safe work practice terminology likely to appear in question stems
Major Load Calculations
- Work through service and feeder calculation problems repeatedly, timed
- Practice both standard and optional calculation methods for demand factors
- Pair each calculation with correct conductor and overcurrent sizing
Full-Length Timed Practice
- Simulate the full 240-minute, 80-question format using only approved references
- Identify which domain consistently eats the most time and adjust pacing
- Confirm your Board admission letter, ID, and calculator are test-day ready
For a more detailed week-by-week methodology, including how to allocate review time across weak areas, see MT-ME Study Guide 2026: How to Pass on Your First Attempt. You can also build timed familiarity with the question style using full practice exams on the main practice test platform before attempting the real thing.
After You Pass: Licensing and Renewal
Clearing 75% is the gate, not the finish line. Passing the exam moves you toward the individual master electrician license - which is separate from an electrical contractor license, so don't assume one covers the other if you plan to run your own contracting business.
Once licensed, renewal happens biennially by July 15 of even-numbered years. You'll need 16 approved continuing-education hours per renewal cycle, including at least eight hours specifically on NEC updates. Note that upgrading from journeyman to master does not create a first-renewal continuing-education exemption - you're expected to meet the full CE requirement even in your first renewal window as a master. The Board has also listed a 50% renewal-fee abatement for the 2026 cycle, which is worth confirming directly with the Board before you budget for renewal.
To understand what the license actually opens up in terms of work and pay expectations, see MT-ME Salary Guide 2026: Complete Earnings Analysis and Is the MT-ME Certification Worth It? Complete ROI Analysis 2026. For scheduling windows and application deadlines leading up to your test date, review MT-ME Exam Dates 2026: Testing Windows, Deadlines & Scheduling.
Key Takeaway
Treat the exam fee's one-year validity as a planning tool: schedule your test date early enough that a reschedule (two-day notice minimum) doesn't push you past that window.
Frequently Asked Questions
You need 75% correct on the 80-question exam, which works out to roughly 60 correct answers, administered by PSI Services LLC under Montana State Electrical Board rules.
Yes, but only with approved references: NEC 2020, Printreading Based on the 2020 NEC, and Montana Building Codes Amendments. Personal notes, added tabs, highlighting, and extra papers are prohibited.
You have 240 minutes to answer 80 multiple-choice questions, which averages to about three minutes per question, though load calculation problems typically take longer than code-lookup questions.
After a second failure, you must wait six months and complete an approved eight-hour code seminar. After a third or subsequent failure, you must wait one year, reapply, and complete two eight-hour seminars before retesting.
Yes. The $85 exam fee is valid for one year from approval, and you must cancel or reschedule your appointment at least two days in advance to avoid losing it.
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