- The Exam at a Glance: Numbers to Memorize
- Two Dates That Get Confused: September 8 vs. August 17
- What "Open Book" Actually Means
- Three Question Formats and How Each Is Scored
- Eligibility Snapshot: 48 Months and the 24-Month Wiring Floor
- The Eleven Study Areas in One Pass
- Calculation Hot Spots Worth Drilling
- Retake Wait, Renewal Cycle and Fees
- Reading the Historical Results Without Misusing Them
- A Domain-Ordered Review Sequence
- Frequently Asked Questions
- The Class A Journeyworker exam has 80 questions, a 5.5-hour limit, and a 70% passing requirement.
- The 2026 NEC examination transition is September 8, 2026, not the August 17 field-code adoption date.
- Multiple-correct questions give no partial credit: you must select the complete correct set.
- You get a department-supplied untabbed NEC and calculator; personal books and electronic devices are prohibited.
The Exam at a Glance: Numbers to Memorize
This page condenses what a Minnesota Class A Journeyworker Electrician (AJ) candidate needs on one screen. The exam is administered by the Minnesota Department of Labor and Industry (DLI), which also issues the license. This is the Class A journeyworker credential specifically, not Class B, lineman or master, so content written for those tracks should not set your study priorities. If you want the broader picture first, start with What Is MN-JE? and then return here for the facts worth memorizing.
| Item | Fact |
|---|---|
| Issuer / administrator | Minnesota Department of Labor and Industry (DLI) |
| Credential | Class A Journeyworker Electrician (AJ) |
| Number of questions | 80 |
| Time limit | 5 hours 30 minutes |
| Passing requirement | 70% |
| Application / reexamination fee | $50 |
| Content emphasis | Code application, calculations and theory |
| Reference materials | Department-supplied untabbed softcover NEC and Laws and Rules Booklet; department-provided desk calculator |
| Wait before retesting | At least 30 days after notification |
A quick pacing calculation helps: 330 minutes across 80 questions is roughly four minutes per question on average. That is generous for a recall question and tight for a multi-step calculation that requires locating a table, a rule and an exception in an unfamiliar, untabbed book. Plan to bank time on quick items so you can spend it where the book hunting happens. For a fuller treatment of scoring, see MN-JE Passing Score 2026: Exactly What You Need to Pass.
Two Dates That Get Confused: September 8 vs. August 17
The most common factual error in circulating study material involves the 2026 NEC. DLI's dated announcement places the examination transition on September 8, 2026. That is a different event from the August 17, 2026 field-code adoption date, which governs what applies on job sites and inspections.
Practically, this means two things. First, if you test on or after September 8, 2026, prepare from the 2026 NEC, since the exam guide's study areas are tied to the 2026 edition. Second, if you are confused about whether you are "in the old code or the new code," remember that the field answer and the exam answer can differ during the window between the two dates. For scheduling logistics, cross-check MN-JE Exam Dates 2026: Testing Windows, Deadlines & Scheduling.
What "Open Book" Actually Means
Open book on this exam is narrower than most candidates assume. You do not bring your own marked-up reference. The department supplies an untabbed softcover NEC and a Laws and Rules Booklet, plus a desk calculator. Personal reference books and electronic devices are prohibited.
Why the untabbed book changes your preparation
Your speed depends on knowing where things live in the NEC, not on sticky tabs or highlighting that you cannot use.
- Practice with an unmarked copy of the code so navigation becomes memory.
- Learn the structure of Chapters 1 through 9 so you can jump to the right chapter before using the index.
- Know where the Chapter 9 tables sit and which Informative Annex material you may need to look up.
- Get comfortable with the calculator style you will be given rather than your favorite scientific model.
The takeaway is simple: "open book" rewards candidates who have done enough timed lookups that the book feels familiar. It punishes candidates who treat it as a safety net.
Three Question Formats and How Each Is Scored
The exam uses three multiple-choice formats:
- Single-correct-answer: the familiar format, one best answer.
- Multiple-correct-answer: more than one choice is right, and you must select the complete correct set. There is no partial credit.
- Negative-response: you identify the choice that is not correct, not permitted, or does not apply.
Your practice should mirror these formats. A bank made only of single-answer items leaves you unprepared for the scoring behavior of the other two. Our practice test platform is a good place to rehearse mixed formats under time pressure.
Eligibility Snapshot: 48 Months and the 24-Month Wiring Floor
Eligibility is experience-based and verified:
- 48 months of qualifying experience in total.
- At least 24 months of that must be wiring and equipment installation.
- Experience is subject to DLI experience-category limits, so not every month of electrical work counts equally toward each category.
- Approved two-year electrical education can provide up to 12 months of credit.
- Employer verification and application approval are required before you can test.
The category limits are where applications stall. Time spent on work that falls outside installation may be capped, so a candidate with plenty of calendar time can still fall short of the 24-month installation requirement. Review the current rules on DLI's experience and education page and our walkthrough in MN-JE Requirements 2026: Eligibility, Prerequisites & How to Qualify before paying the $50 fee.
The Eleven Study Areas in One Pass
The eleven headings below track the AJ preparation and knowledge areas in DLI's Electrical license examination guide for the 2026 NEC edition. They are unweighted, non-exhaustive study suggestions. No percentage weights are published for them, and they are not a formal weighted blueprint or a guarantee that every exam question maps neatly to one heading. Use them to organize review, not to predict question counts. The full breakdown lives in MN-JE Exam Domains 2026: Complete Guide to All 11 Content Areas.
Introduction and Chapter 1 General
Definitions, scope and the rules for how the code is applied.
- Terminology precision, since defined terms drive many wording-based questions.
- Working space, clearances and general installation requirements.
Chapter 2 Wiring and protection
The core of system design and safety.
- Branch-circuit, feeder and service calculations.
- Grounding and bonding, overcurrent protection and GFCI/AFCI requirements.
Chapter 3 Wiring methods and materials
Choosing and installing the right method.
- Conductor ampacity, correction and adjustment.
- Raceway and cable fill, support, box fill and permitted uses.
Chapter 4 Equipment for general use
Equipment-specific installation rules.
- Motors, transformers, appliances, lighting and receptacles.
- Rules written around specific equipment types rather than general wiring.
Chapter 5 Special occupancies
Hazardous (classified) locations, healthcare, assembly and other occupancy-specific rules.
Chapter 6 Special equipment
Signs, pools, fountains, solar PV and other specialized installations.
Chapter 7 Specific conditions and systems
Emergency systems, standby power, and other conditions that modify general rules.
Chapter 8 Communication systems, outside and entering buildings
Outside and entering communications installations, grounding and separation concerns.
Chapter 9 Tables
The lookup engine behind many calculations.
- Conductor properties, conduit fill and related tables.
- Locating the right table fast in an untabbed book.
Applied electrical theory, electrical systems and equipment
The non-code layer.
- Ohm's law, power relationships, single-phase and three-phase behavior.
- Voltage drop, motor and transformer theory, and system reasoning.
Calculation Hot Spots Worth Drilling
The exam covers calculations alongside code application and theory, so mathematical fluency matters. Calculation topics to rehearse with the department-style calculator:
- Multifamily dwelling loads: applying demand factors across units, and keeping separate which loads are counted at 100% versus demand-adjusted.
- Service and feeder sizing: converting a load total into a conductor and overcurrent device selection, including the rounding and standard-size rules.
- Ampacity adjustment and correction: temperature and conductor-count adjustments applied in the correct order.
- Conduit and box fill: pulling the right table values and counting conductors correctly.
- Motor circuits: branch-circuit conductors, overload and short-circuit protection as separate calculations.
- Voltage drop and basic power relationships: the applied-theory crossover with the code.
Key Takeaway
Write out your calculation steps in the same order every time. Most lost calculation points come from skipping a step, such as an adjustment factor or a standard-size rounding rule, rather than from arithmetic mistakes. For a sense of how difficulty is distributed, see How Hard Is the MN-JE Exam? Complete Difficulty Guide 2026.
Retake Wait, Renewal Cycle and Fees
Know what comes after the exam, too:
- Application or reexamination fee: $50.
- Retake wait: at least 30 days after notification of a failing result before you may apply for reexamination.
- License term: journeyworker licenses run on two-year terms ending in the original issue month (Minnesota Statutes 326B.33).
- Renewal fee: $53.
- Continuing education: 16 approved hours, including at least 12 NEC hours and up to four approved related hours.
Budget planning is covered in MN-JE Certification Cost 2026: Complete Pricing Breakdown, and the career-return side is discussed in MN-JE Salary Guide 2026: Complete Earnings Analysis.
Reading the Historical Results Without Misusing Them
DLI's April 14, 2026 Board of Electricity meeting minutes report historical journeyworker results of 42% by total examinations and 45% by test taker, covering 349 testers. Two cautions apply.
Use the historical figures as a sign that the exam is a genuine hurdle, not as a prediction. Our analysis in MN-JE Pass Rate 2026: What the Data Shows goes deeper on proper dating and interpretation.
A Domain-Ordered Review Sequence
If you are sequencing a short review, the order below front-loads the structure of the book and the calculation skills that gate everything else. Adjust the pace to your own timeline.
Book structure, definitions and Chapter 9 tables
- Navigate the unmarked NEC until chapter locations are second nature.
- Review Introduction and Chapter 1, then locate each major Chapter 9 table.
Chapter 2 wiring and protection
- Branch-circuit, feeder, service and grounding work.
- Begin multifamily load calculations here, since they draw on this chapter heavily.
Chapters 3 and 4
- Wiring methods, ampacity adjustment, fill and equipment-specific rules.
- Motor and transformer circuits.
Chapters 5 through 8
- Special occupancies, special equipment, specific conditions and communications.
- Focus on how these chapters modify the general rules.
Applied theory plus full timed simulations
- Theory and system reasoning review.
- Mixed-format practice that includes multi-select and negative-response items, using only the reference material you will have on exam day.
For a broader study framework, see MN-JE Study Guide 2026: How to Pass on Your First Attempt.
Frequently Asked Questions
The AJ exam has 80 questions and a five-hour-thirty-minute time limit. You need 70% to pass.
No. The department supplies an untabbed softcover NEC and a Laws and Rules Booklet, along with a desk calculator. Personal reference books and electronic devices are prohibited.
DLI's dated announcement places the 2026 NEC examination transition on September 8, 2026. That is separate from the August 17, 2026 field-code adoption date. Confirm the current notice on DLI's electrical contractors page before scheduling.
No. You must select the complete correct set of answers to earn credit, so verify each option individually.
You must wait at least 30 days after notification before applying for reexamination, and the reexamination fee is $50.