- How the 18 Content Areas Fit Together
- Exam Format, Fees and Book Rules
- Domains 1-6: The Installation Core
- Domains 7-12: Motors, Occupancies and Calculations
- Domains 13-15: Low-Voltage, Trade Knowledge and Theory
- Domains 16-18: Michigan Law and Rules
- Sequencing the Domains Across Your Prep
- Retakes, Renewal and the Detroit Boundary
- Frequently Asked Questions
- The Michigan journeyman exam is open-book: 80 questions, 150 minutes, 75% to pass, administered by PSI after LARA BCC approval.
- Eighteen unweighted content areas apply; no official percentage blueprint exists, so prepare broadly rather than chasing guessed weights.
- Domains 16-18 cover 2016 PA 407, 1972 PA 230 and Michigan Electrical Code Rules Part 8, which generic NEC courses skip.
- Your books may carry only factory markings, highlighting and tabs; candidate-added notes, tabs or highlighting are prohibited.
How the 18 Content Areas Fit Together
The Michigan Journeyman Electrician License Exam is issued through the Michigan Department of Licensing and Regulatory Affairs, Bureau of Construction Codes (LARA BCC). Once the BCC approves your eligibility, you test through PSI Services LLC. The exam is based on the 2023 NEC, and the Candidate Information Bulletin (effective August 20, 2026) also names Michigan-specific references: Michigan Electrical Code Rules Part 8, 2016 PA 407 and 1972 PA 230.
This guide organizes the scope into eighteen content areas. Domains 1-15 reflect the bulletin's installation and theory objectives. Domains 16-18 reflect the three state-law and rule references the bulletin expressly makes examinable. One caution matters here: these eighteen headings are an unweighted, non-exhaustive narrative description of scope. They are not a publisher-numbered eighteen-domain blueprint, and no official percentage allocation has been published, so any site claiming "Domain 5 is 12% of the exam" is inventing a number. Coverage also extends to applicable rules and codes adopted under the named acts.
If you want the broader picture first, the MI-JE study guide walks through a first-attempt plan, and how hard the MI-JE exam really is explains where candidates tend to struggle.
Exam Format, Fees and Book Rules
| Item | Michigan Journeyman Exam |
|---|---|
| Issuer | LARA Bureau of Construction Codes |
| Test provider | PSI Services LLC (after BCC eligibility approval) |
| Format | Computer-based, open-book |
| Questions / time | 80 questions, 150 minutes |
| Passing requirement | 75% |
| Exam fee | $100 per attempt |
| Initial license fee | $40, paid with the state application (separate from PSI) |
| Code basis | 2023 NEC plus Michigan references |
Eligibility ordinarily requires being age 20 or older, with at least four years and 8,000 hours as a registered electrical apprentice under a Michigan-licensed journeyman or master electrician, backed by notarized employer verification. Qualifying education or other experience credit is subject to state review. Full detail is in the MI-JE requirements breakdown, and the money side is covered in the MI-JE certification cost guide.
Reference-book rules you must plan around
Open-book does not mean open-note. Books may contain only publisher or factory markings, highlighting and factory tabs. Candidate-added highlighting, notes and indexing are prohibited. The NEC Handbook is prohibited. Printed state-law and rule documents must remain separate, unmarked and untabbed, with three staples along the left edge of each document. A straightedge without calculations is permitted.
Domains 1-6: The Installation Core
The first six areas are the backbone of everyday NEC work. Questions in an open-book exam reward people who know where to look and how to apply a rule to a scenario, rather than recite text from memory.
Domain 1: Grounding and Bonding
Expect scenario questions about equipment grounding conductors, grounding electrode systems and bonding of service equipment and metal parts.
- Distinguish grounded conductor, equipment grounding conductor and grounding electrode conductor roles
- Know how sizing tables are entered and what each is keyed to
- Practice bonding questions for separately derived systems and services
Domain 2: Overcurrent Protection
Breakers, fuses, ampacity coordination and the rules for protecting conductors and equipment.
- Standard overcurrent device ratings and when rounding up is allowed
- Tap and transformer secondary protection rules
- Location and accessibility requirements for devices
Domain 3: Wiring Methods and Installations
Cables, raceways and the support, protection and permitted-use rules for each wiring method.
- Match each method to permitted and prohibited locations
- Support spacing and securing requirements
- Conductor ampacity adjustments and correction factors
Domain 4: Boxes and Cabinets
Selection, installation, support and accessibility of outlet, device and junction boxes and cabinets.
- Where boxes are required and how they must be secured
- Conductor entry, cable clamp and unused-opening rules
- Pull and junction box sizing basics
Domain 5: Services
Service conductors, service equipment, disconnecting means, metering arrangements and service entrance requirements.
- Service point and the boundary between utility and customer
- Number and grouping of service disconnects
- Service conductor sizing and protection
Domain 6: Feeders
Feeder conductor sizing, protection and installation between the service and branch-circuit panels.
- Feeder demand applied to calculated loads
- Neutral sizing and when it counts as current-carrying
- Feeder taps and subpanel grounding practices
Domains 7-12: Motors, Occupancies and Calculations
This group is where time pressure bites. Calculation questions can consume minutes each, so recognizing quickly which table, article and method applies is half the battle. The MI-JE passing score guide explains why pacing across 80 questions in 150 minutes matters, roughly under two minutes per question on average.
Domain 7: Motors and Motor Controls
Motor branch-circuit conductors, overload and short-circuit protection, disconnects and controllers.
- Full-load current comes from NEC tables, not the nameplate, for sizing conductors and short-circuit protection
- Overload protection sizing is a separate step from branch-circuit protection
- Know the disconnect and controller location rules
Domain 8: Special Occupancies
Hazardous (classified) locations, health care, assembly spaces, garages and other special areas where Chapter 5 modifies the general rules.
- Learn the Chapter 5 to Chapters 1-4 relationship: special occupancy rules supplement or modify the general requirements
- Be able to find the correct article quickly by occupancy name
Domain 9: Load Calculations
Dwelling and non-dwelling service and feeder calculations using the NEC's standard and optional methods.
- General lighting loads by occupancy type and demand factors
- Appliance, range, dryer and HVAC load treatment
- Practice the sequence until it becomes mechanical
Domain 10: Lighting
Luminaire installation, branch-circuit requirements, clearances and lighting-load considerations.
- Luminaire location rules in wet, damp and dry areas
- Support and clearance requirements
- How lighting loads feed into Domain 9 calculations
Domain 11: Appliances
Branch-circuit, disconnect and installation requirements for household and commercial appliances and fixed equipment.
- Ratings, disconnecting means and grounding of appliances
- Special-purpose equipment such as water heaters and HVAC
- Dedicated circuit and overcurrent requirements
Domain 12: Box and Raceway Fill
Conductor counting and volume allowances for boxes and fill limits for conduit and tubing.
- Volume allowances per conductor size and the deductions for devices, clamps and fittings
- Raceway fill percentages and conductor area tables
- Common mistake: forgetting that equipment grounding conductors count in fill
Key Takeaway
Fill and load calculations are the most "mechanical" parts of the exam. Drill them with a clean, unmarked code book until you can locate the right table in seconds, because that retrieval speed is what you will actually be tested on.
Domains 13-15: Low-Voltage, Trade Knowledge and Theory
Domain 13: Power Limited Circuits
Class 1, 2 and 3 remote-control, signaling and power-limited circuits, and related low-voltage wiring rules.
- Separation and installation rules relative to power conductors
- Power source limitations that define each class
- Know which chapter governs communications and signaling wiring
Domain 14: General Electrical Trade Knowledge
Practical knowledge a working journeyman applies on the job: tools, materials, safe work practices and the logic behind common installations.
- Terminology used consistently with the NEC definitions
- Safe working practices and equipment recognition
- Interpreting the intent of installation scenarios
Domain 15: Electrical Theory
Ohm's law, power relationships, series and parallel circuits, AC fundamentals and basic transformer behavior.
- Rearranging Ohm's law and power formulas without hesitation
- Series versus parallel resistance and voltage drop reasoning
- Single-phase and three-phase relationships
Theory questions are usually the quickest points on the exam if your fundamentals are solid, and the most expensive if they are not. A quick one-page review is available in the MI-JE cheat sheet.
Domains 16-18: Michigan Law and Rules
These three areas separate Michigan's exam from a pure NEC test. National prep courses often omit them, and candidates who rely on generic materials can lose easy points here.
Domain 16: 2016 PA 407
One of the three expressly examinable state-law references. Study the statute's provisions as they relate to electrical licensing and the rules adopted under it.
- Read the actual document, since questions are drawn from its text
- Note definitions, license categories and requirements the act establishes
Domain 17: 1972 PA 230
The state construction code act and the rules and codes adopted under it, an examined state reference alongside PA 407.
- Understand its role in the Michigan code adoption framework
- Know the relationship between the act and the rules adopted under it
Domain 18: Michigan Electrical Code Rules Part 8
Michigan's amendments and administrative rules layered on the NEC. This is where Michigan departs from the model code.
- Know where Part 8 modifies or supplements the 2023 NEC
- Learn to check Part 8 before answering any question that looks like a plain NEC lookup
Sequencing the Domains Across Your Prep
Because the exam has no published weighting, sequence by dependency rather than by guessed importance. Theory and definitions come first because everything else rests on them; calculations come after the underlying rules; state law is placed late but not last, so you can revisit it. The sample timeline below is one way to do this.
Foundations
- Domain 15 (theory) and Domain 14 (trade knowledge)
- Learn to navigate the clean 2023 NEC by index and table of contents
Core installation rules
- Domains 1-4: grounding, overcurrent, wiring methods, boxes
Distribution
- Domains 5-6: services and feeders
- Domain 12: box and raceway fill drills
Loads and equipment
- Domains 9-11: load calculations, lighting, appliances
- Domain 7: motors and controls
Special topics and Michigan law
- Domains 8 and 13, then Domains 16-18 with the unmarked state documents
Simulation
- Timed 80-question, 150-minute sets using only compliant books
- Review misses by domain and revisit the weakest two
You can run those timed sets on the MI-JE practice test site, which is useful for building the pacing described in the MI-JE exam dates and scheduling guide. Candidates also ask about pass-rate data; the MI-JE pass rate article discusses what is and is not publicly known.
Retakes, Renewal and the Detroit Boundary
The retake wording conflict
Published sources conflict on retakes. The journeyman-specific provision allows two attempts within one year before a new state application is needed, while generic language elsewhere says unlimited attempts. Treat the journeyman-specific restriction as the controlling one, and confirm BCC re-eligibility before booking any additional attempt. Each attempt carries the $100 exam fee, so an unauthorized booking is an avoidable loss.
Renewal after you pass
Licenses renew annually by December 31 at $40. Separately, an approved code-update course is required within one year after a new electrical code is adopted. This is not an annual fixed-hour continuing-education requirement, a distinction that trips up candidates coming from other states.
Detroit and reciprocity
Detroit residents follow the city's own licensing authority, so this state-exam guide should not be read as Detroit's examination scope. Michigan also does not offer automatic electrician-license reciprocity with other states or countries, so out-of-state journeymen should plan to qualify through the Michigan process. For what comes after licensure, see the MI-JE salary guide and the ROI analysis of the certification.
Frequently Asked Questions
No. The eighteen headings are an unweighted, non-exhaustive narrative description of the bulletin's scope. No official percentage allocation has been published, so avoid any resource that claims exact domain percentages.
Only publisher or factory markings, highlighting and factory tabs are allowed. Candidate-added highlighting, notes and indexing are prohibited, and the NEC Handbook is not permitted. State-law documents must be separate, unmarked and untabbed, with three staples along the left edge.
The exam is based on the 2023 NEC, with Michigan Electrical Code Rules Part 8, 2016 PA 407 and 1972 PA 230 among the examined state references, per the bulletin effective August 20, 2026.
The journeyman-specific provision allows two attempts within one year before a new state application is required. Generic language elsewhere says unlimited attempts, so confirm BCC re-eligibility before booking any additional attempt.
The $100 fee is the PSI examination charge for each attempt. The $40 initial journeyman license fee is paid with the state application and is separate. Annual renewal is also $40, due by December 31.
For a broader orientation on the credential itself, start with what the MI-JE is, then use the practice test site to rehearse all eighteen areas under timed conditions.