- Passing requires scoring 75% or higher on 80 multiple-choice questions in 240 minutes.
- The exam is open-book, but only NEC 2020, Printreading Based on the 2020 NEC, and Montana Building Codes Amendments are allowed.
- A second failed attempt requires a six-month wait plus an approved eight-hour code seminar before retesting.
- A third or later failure requires a one-year wait, reapplication, and two eight-hour seminars.
The Pass Rate Reality: What Montana Actually Publishes
Montana's electrical board does not publish a public pass-rate percentage for the Master Electrician exam, and PSI Services LLC, the third-party testing administrator, does not release candidate-level statistics either. That means any specific percentage you see floating around forums or competitor sites for "MT-ME" is either outdated, unofficial, or borrowed from an unrelated credential entirely. What the Board does publish, and what actually determines your outcome, is the structure of the test itself: 80 questions, 240 minutes, and a 75% passing threshold on the Master Electrician 2020 examination bulletin.
Instead of chasing a mystery number, the more useful exercise is understanding the mechanics that produce a pass or fail outcome, and the retake consequences the Board has built into the system. Those mechanics tell you far more about your realistic odds than any unverified statistic could.
Exam Mechanics That Shape the Numbers
The exam is computer-based and open-book, but "open-book" comes with strict limits that trip up unprepared candidates. You may bring the three approved references - NEC 2020, Printreading Based on the 2020 NEC, and Montana Building Codes Amendments - but personal notes, highlighting, underlining, and added tabs are prohibited. Only factory markings, factory highlights, and factory-installed tabs in the NEC are allowed. Candidates who show up with a heavily customized code book are often forced to use a clean copy on the spot, losing the navigation advantage they spent weeks building.
Calculator rules matter too. You can use the on-screen calculator or bring an approved silent, battery-operated, nonprogrammable, nonprinting calculator without an alphabetic keyboard. Bringing the wrong device wastes valuable minutes sorting out logistics before the clock even starts on your 240-minute window.
- Exam fee: $85, valid for one year from approval
- Master application fee: $190, separate from the exam fee
- Format: 80 multiple-choice questions, computer-based, open-book
- Time limit: 240 minutes
- Passing score: 75%
For a full breakdown of every fee involved in becoming licensed, see the MT-ME Certification Cost breakdown, and for the exact scoring mechanics, review MT-ME Passing Score: Exactly What You Need to Pass.
The Three Domains Behind Every Score
Every question on the exam maps back to one of three subject areas identified in the Board-linked PSI bulletin. Understanding how these domains interact is more predictive of your outcome than any pass-rate percentage.
Domain 1: National Electrical Code
This domain tests your ability to locate and apply specific NEC 2020 articles under time pressure. Open-book does not mean easy - it means the exam assumes fast, accurate navigation of the code book.
- Article-level lookups on grounding, bonding, and overcurrent protection
- Applying amendments specific to Montana Building Codes
- Cross-referencing tables under strict time constraints
Domain 2: General Trade Knowledge & Theory
This covers the conceptual and practical knowledge a journeyman-to-master transition assumes you already have from years of fieldwork.
- Electrical theory fundamentals applied to real installations
- Print reading skills tied to the approved reference material
- Trade practices that don't have a single code citation but are tested as working knowledge
Domain 3: Major Load Calculations
Calculation-heavy questions are often where candidates lose the most time, since each one may require multiple lookup-and-compute steps within the same 240-minute window.
- Service and feeder load calculations
- Demand factor application
- Multi-step problems combining code lookups with math
For a deeper walkthrough of how these three areas are weighted and tested, read the MT-ME Exam Domains Guide. If you're still mapping out your overall prep plan, the MT-ME Study Guide ties each domain to a study sequence.
What the Retake Rules Tell Us About Difficulty
Absent a published pass rate, the Board's own retake policy is the clearest signal of how seriously it treats repeated failure. This structure is one of the most concrete pieces of "data" available about the exam's difficulty curve.
| Failure Number | Waiting Period | Additional Requirement |
|---|---|---|
| First failure | Reschedule per PSI rules | None specified beyond rescheduling |
| Second failure | 6 months | One approved 8-hour code seminar |
| Third or subsequent failure | 1 year | Reapply plus two approved 8-hour seminars |
Key Takeaway
The escalating seminar and waiting-period requirements after a second and third failure indicate the Board expects candidates to substantially close knowledge gaps before retesting - not simply try again quickly. Treat your first attempt as the one worth over-preparing for.
Who Struggles and Why
Candidates sitting for this exam are typically experienced journeyman electricians moving into supervisory or business-owning roles, or engineering-degree holders who qualified through the alternative 2,000-hour practical route. Employers hiring for master-level roles - electrical contracting firms, industrial maintenance departments, and design-build companies - expect this license as a baseline credential, which is covered in more detail in MT-ME Jobs.
Despite years of field experience, many candidates underestimate the exam because it's open-book. The real difficulty isn't unfamiliarity with electrical work - it's speed. Eighty questions in 240 minutes gives you roughly three minutes per question, and Domain 3's calculation questions frequently take longer than that. Candidates who haven't drilled fast code-book navigation and calculation shortcuts run out of time before they run out of knowledge.
Another common failure point: bringing disallowed materials. Since only factory markings and tabs are permitted, and personal annotations are explicitly prohibited, candidates who prepared using a heavily marked-up personal code book sometimes discover on test day that their navigation system is unusable. Practicing with a compliant, minimally-marked reference in advance avoids this shock. For a broader look at what makes this exam genuinely challenging beyond the code-book rules, see How Hard Is the MT-ME Exam?.
How to Improve Your Odds
Rather than generic test-taking advice, focus your limited prep time on the specific mechanics that determine outcomes on this particular exam.
Domain 1 - NEC Navigation Speed
- Time yourself locating specific NEC 2020 articles
- Rebuild familiarity with factory tabs only, since personal tabs aren't allowed
Domain 3 - Load Calculation Drills
- Practice full service and feeder calculations under a timer
- Work problems using only an approved nonprogrammable calculator
Domain 2 - Trade Knowledge Review
- Review print-reading material tied to the approved reference book
- Take full-length timed practice sets on our practice test platform
Full Simulation and Logistics
- Run a full 240-minute simulation with only compliant references
- Confirm your Board admission letter and photo ID are ready for PSI scheduling
This kind of domain-sequenced timeline works because it mirrors how the exam is actually weighted, rather than applying a generic study cadence borrowed from an unrelated test. If you want the full-length version of this plan, the MT-ME Study Guide expands on each week in detail, and our practice tests let you rehearse the exact question format before exam day.
The Cost of Failing vs. Passing
Failing isn't just a scheduling inconvenience - it has real financial and time costs layered on top of the base $85 exam fee and $190 master application fee. A second failure means six months off before you can retest, plus the cost and time of an eight-hour code seminar. A third failure means a full year, a new application, and two seminars. Since the exam fee itself is only valid for one year, poor scheduling around a failed attempt can force you to pay again even before you're eligible to retest.
Weigh this against the value of getting licensed at all. If you're still deciding whether the investment is worthwhile relative to your career goals, Is the MT-ME Certification Worth It? and the MT-ME Salary Guide both address the return side of this equation. And if you haven't finalized your eligibility path yet - the standard 8,000-hour journeyman route, the engineering-degree alternative, or the substantial-equivalency route for out-of-state licenses - the MT-ME Requirements guide breaks down exactly what documentation the Board expects before you even schedule with PSI.
Frequently Asked Questions
No. Neither the Montana State Electrical Board nor PSI Services LLC publishes a specific pass-rate percentage for this exam. Focus instead on the documented passing score of 75% and the exam's structural requirements.
The bulletin specifies escalating consequences starting at the second failure. A first failure requires rescheduling through PSI; specific extended waiting periods and seminar requirements apply starting with the second failure.
No. Personal notes, highlighting, underlining, and added tabs are prohibited. Only factory markings, factory highlights, and factory-installed tabs in the NEC are permitted.
The $85 exam fee is valid for one year. You must cancel or reschedule at least two days before your appointment to avoid losing it.
Domain 3, Major Load Calculations, tends to consume the most time per question during the actual exam, so prioritizing calculation speed alongside NEC navigation from Domain 1 is generally the highest-leverage use of limited prep time. See the MT-ME Exam Domains Guide for a full breakdown.