- Exam Snapshot: Numbers You Must Memorize
- Open-Book Rules: What You Can and Can't Bring
- All 15 Domains at a Glance
- Laws, Codes, and Acts Tested Alongside the NEC
- Eligibility Checklist Before You Apply
- Fees, Renewal, and Retake Policy
- Master vs. Contractor License: Don't Confuse Them
- Final Week Review Plan
- FAQ
- 76 questions, 3-hour limit, 75% passing score, open-book with the 2023 NEC.
- PSI exam fee is $100; the separate initial master license fee is $50.
- Only factory tabs and markings are allowed - no candidate-added tabs or the NEC Handbook.
- Two failures within two years triggers a mandatory approved educational course before retesting.
Exam Snapshot: Numbers You Must Memorize
Before you touch a single practice question, lock in the operational facts of the Michigan Master Electrician License Exam (MI-ME). These are administered by PSI on behalf of the Michigan Department of Licensing and Regulatory Affairs (LARA), Bureau of Construction Codes (BCC), working with the Electrical Administrative Board. Every candidate faces the same format: 76 questions, a 3-hour time limit, and a 75% passing requirement. The exam is computer-based and open-book, referencing the 2023 NEC.
The PSI examination fee is $100, separate from the $50 initial master license fee paid with your state application. Confusing these two fees - or assuming they're bundled - is a common paperwork mistake. For a full breakdown of every dollar amount tied to licensure, see the MI-ME Certification Cost breakdown.
Open-Book Rules: What You Can and Can't Bring
The MI-ME exam is open-book, but "open-book" has a very narrow definition under PSI's Michigan bulletin. You are permitted to bring approved references, but only factory-produced markings, highlights, and factory-installed tabs are allowed. Anything you add yourself - sticky tabs, handwritten notes, personal highlighting, index cards taped into the code book - is prohibited. The NEC Handbook (the annotated commentary version) is also banned; you may only use the plain 2023 NEC code book.
There's also a binding rule for printed acts and rules documents: each one must remain a separate document and be secured with three staples along the left edge. Loose sheets are prohibited outright, so if you print the Skilled Trades Regulation Act or the Michigan Electrical Code Rules yourself, staple each document separately before test day - don't combine them into one packet.
One more detail that trips people up: personal calculators are prohibited. If load calculations rely on a calculator, confirm with PSI's current policy on provided testing tools before assuming you can bring your own.
Key Takeaway
Prep your code book exactly like test day: factory tabs only, no annotations, and each printed law or rules document stapled separately with three staples on the left edge. Practicing navigation under these constraints now avoids a shock at the test center.
All 15 Domains at a Glance
The official master examination description breaks the content into 15 domains covering installation and trade subjects. Treat this list as your master checklist - if you can teach each topic to another electrician, you're ready. For deep-dive coverage of each area, the MI-ME Exam Domains guide walks through all 15 in detail.
Domain 1: Grounding and Bonding
Grounding electrode systems, bonding jumpers, and equipment grounding conductor sizing come up repeatedly across scenario-style questions.
- Distinguish grounding vs. bonding purposes and conductor paths
Domain 2: Overcurrent Protection
Breaker and fuse sizing, coordination, and conductor protection rules tied directly to 2023 NEC tables.
- Practice locating ampacity and overcurrent tables quickly in your code book
Domain 3: Wiring Methods and Installations
Cable and raceway types, support spacing, and installation requirements across occupancy types.
- Know which wiring methods are permitted in which environments
Domain 4: Boxes and Cabinets
Sizing, support, and accessibility requirements for enclosures.
- Cross-reference with Domain 12 fill calculations
Domain 5: Services
Service entrance conductors, disconnects, and clearance requirements.
- Understand service sizing in tandem with load calculations
Domain 6: Feeders
Feeder sizing, tap rules, and voltage drop considerations.
- Practice feeder-vs-branch-circuit distinctions
Domain 7: Motors and Motor Controls
Motor overload protection, disconnect sizing, and control circuit wiring.
- Master motor full-load current tables and multipliers
Domain 8: Special Occupancies
Hazardous locations, health care facilities, and other occupancy-specific rules.
- Memorize classification systems for hazardous locations
Domain 9: Load Calculations
Dwelling and commercial load calculations using standard and optional methods.
- Practice full worksheet-style calculations under time pressure
Domain 10: Lighting
Lighting load requirements and branch circuit rules for lighting outlets.
- Know unit lighting loads by occupancy type
Domain 11: Appliances
Appliance branch circuits, demand factors, and disconnect requirements.
- Focus on demand factor tables for multiple appliances
Domain 12: Box and Raceway Fill
Conductor fill calculations for boxes, conduit, and tubing.
- Drill fill tables until conversions become second nature
Domain 13: Power Limited Circuits
Class 1, 2, and 3 circuits and their installation requirements.
- Separate power-limited rules from standard branch circuit rules
Domain 14: General Electrical Trade Knowledge
Broad trade practices, safety, and code administration knowledge that doesn't fit neatly into a single technical category.
- Expect scenario questions blending code and field judgment
Domain 15: Electrical Theory
Ohm's Law, power calculations, and circuit theory fundamentals.
- Keep formulas sharp since a calculator is not permitted
If you're still deciding how aggressively to prepare, review How Hard Is the MI-ME Exam? and MI-ME Pass Rate: What the Data Shows for a realistic picture of the difficulty curve across these domains.
Laws, Codes, and Acts Tested Alongside the NEC
MI-ME candidates often over-focus on the NEC and underestimate the legal and administrative material. Beyond the 15 technical domains, the exam also tests:
- Planning, laying out, and supervising electrical installations - a supervisory competency distinct from journeyman-level technical execution
- The 2016 Skilled Trades Regulation Act, Public Act 407
- The 1972 Stille-DeRossett-Hale Single State Construction Code Act, Public Act 230
- The Michigan Electrical Code Rules, Part 8
These four items are frequently underweighted in generic study plans because they aren't "wiring topics." But since the master exam explicitly certifies supervisory competence, questions on planning and supervising installations are baked into the test description - not an afterthought.
Eligibility Checklist Before You Apply
Meeting the experience threshold is non-negotiable, and LARA verifies it carefully. Before you even register for the PSI exam, confirm you meet every item below. For the full explanation with documentation tips, see MI-ME Requirements: Eligibility, Prerequisites & How to Qualify.
- At least 22 years old
- At least 12,000 qualifying hours over at least six years
- At least 4,000 hours of that time as a journeyman
- Held a journeyman license for at least two years
- Notarized employer experience documentation submitted with the application
Michigan-licensed journeymen get one procedural break: you do not need to resubmit proof of experience predating your Michigan journeyman license. That said, Detroit residents follow the city's own licensing process rather than LARA's statewide track, and out-of-state licenses and experience are reviewed case-by-case - Michigan does not offer automatic out-of-state reciprocity.
| Requirement | Threshold |
|---|---|
| Minimum age | 22 years |
| Total qualifying hours | 12,000 hours minimum |
| Minimum span | 6 years |
| Journeyman hours within total | 4,000 hours minimum |
| Journeyman license held | 2 years minimum |
Fees, Renewal, and Retake Policy
Keep these numbers separate in your head - mixing them up is a frequent source of confusion among first-time applicants:
- $100 - PSI examination fee
- $50 - initial master license fee (paid with the state application)
- $50 - annual master license renewal, due by December 31
Renewal and code-update training are two separate obligations. Whenever Michigan adopts a new electrical code, licensees must complete required code-update training within one year of adoption - this is independent of the annual renewal cycle and doesn't automatically happen when you pay your $50 renewal fee.
If you don't pass on your first try, LARA's retake policy requires a one-year wait from your last failure. If you fail twice within two years, you must complete an approved educational course before you're allowed to sit for the exam again. This makes first-attempt preparation far more valuable than treating the exam as something you can casually retake - plan your study timeline around passing once. The MI-ME Study Guide and MI-ME Passing Score breakdown both go deeper into building a first-attempt strategy.
Key Takeaway
A single failure costs you a full year before you can retest. Two failures in two years costs you a mandatory course on top of that. Budget your prep time accordingly rather than rushing into exam day underprepared.
Master vs. Contractor License: Don't Confuse Them
Passing the MI-ME exam and holding a master license does not authorize you to operate an electrical contracting business. That requires a separate electrical contractor license, which must be associated with a master electrician - though notably, no additional contractor examination is required. A master electrician may be associated with only one electrical contractor at a time, so if you're planning to move between employers or start your own contracting entity, understand this one-to-one restriction before making commitments.
This distinction matters for career planning as much as licensing. If you're weighing whether the credential justifies the effort, Is the MI-ME Certification Worth It? and the MI-ME Salary Guide cover how the master license opens contractor-track and supervisory roles that a journeyman license alone doesn't.
Final Week Review Plan
In the last stretch before your scheduled PSI appointment, don't try to re-learn everything - triage. Spend early days on your weakest calculation-heavy domains (Load Calculations, Box and Raceway Fill, Feeders) since these require worked practice, not just recognition. Save the last day or two for lighter review: statutes, general trade knowledge, and code-book navigation drills.
Calculation-Heavy Domains
- Work full problems for Domain 9 (Load Calculations) and Domain 12 (Box and Raceway Fill)
- Time yourself against the 3-hour/76-question pace
Code Book Navigation
- Practice finding tables for Domains 2, 5, 6, and 7 without candidate-added tabs
- Rehearse the exact staple-and-separate-document rules for printed acts
Statutes and Trade Knowledge
- Review Public Act 407, Public Act 230, and Michigan Electrical Code Rules Part 8
- Light review only - protect your rest before test day
For a more complete week-by-week structure spanning your entire prep window, not just the final stretch, see the MI-ME Study Guide 2026. And if you haven't locked in a test date yet, check MI-ME Exam Dates: Testing Windows, Deadlines & Scheduling before finalizing this timeline.
Running realistic timed drills matters more than re-reading notes at this stage. A focused Michigan master electrician practice test that mirrors the 76-question, 3-hour format helps you gauge whether your pace across all 15 domains is realistic before you walk into the PSI testing center.
FAQ
Yes. It's computer-based and open-book using the 2023 NEC, but only factory-produced markings, highlights, and factory-installed tabs are permitted - candidate-added annotations, tabs, and the NEC Handbook are prohibited.
The exam has 76 questions with a 3-hour time limit, and you need to score at least 75% to pass.
The PSI examination fee is $100. A separate $50 initial master license fee is paid with your state application. For a full cost breakdown including renewal, see the MI-ME Certification Cost guide.
LARA requires a one-year wait after any failure before retesting. If you fail twice within two years, you must complete an approved educational course before you're allowed to sit for the exam again.
No. Operating an electrical contracting business requires a separate electrical contractor license associated with a master electrician, though no additional contractor exam is required. A master may only be associated with one contractor at a time.