MD-JE Exam Domains 2026: Complete Guide to All 7 Content Areas

The Seven-Heading Blueprint at a Glance

The Maryland Journeyman Electrician License Exam (MD-JE) is built from a seven-heading outline for the Journeyperson Electrician, published on page 4 of the Master and Journeyperson Electrician Qualification Information Bulletin from the Maryland Department of Labor and PSI Services LLC. The Maryland State Board of Electricians governs licensing, while PSI delivers the test. The Board and PSI say "Journeyperson"; this site uses "Journeyman" and the MD-JE label as its identifier for the same Maryland exam.

The outline reads like a tour of the National Electrical Code with a theory section bolted on the front. Here is the complete structure, with the number of scored questions the bulletin assigns to each heading:

These add up to the 70 scored multiple-choice questions on the exam. For a broader orientation before diving into individual domains, see the MD-JE Study Guide 2026: How to Pass on Your First Attempt.

Question Counts, Not Percentages

Most licensing blueprints publish percentage weights. This one does not. The numbers beside each heading are question counts. That distinction matters for two reasons.

First, the counts sum to 70, so 20 questions is roughly two-sevenths of the scored exam, but you should not treat that as a guaranteed ratio on every form. Second, PSI states that five to ten additional unscored experimental questions may be mixed in. Those items are not part of the 70, and the time spent on them does not count against your 210 minutes. You will not know which items are experimental, so answer every question as though it counts.

Note also that the Special Communications heading carries six questions, three times the allocation for Special Equipment. Candidates who skip the back half of the NEC because the early domains feel more important are leaving easy, learnable points behind. For a closer look at the scoring threshold, read MD-JE Passing Score 2026: Exactly What You Need to Pass.

Domain 1: Electrical Theory

Domain 1 is the only domain not organized around NEC article numbers, and at 20 questions it ties for the largest allocation. The bulletin lists its subtopics with continued lettering (l through v), which is a quirk of how the source table is serialized. The topics are:

Public guidance from the issuer also points candidates toward Ohm's Law, electrical theory and mathematics, practical field-work knowledge and applicable local rulings. That guidance does not create a practical, hands-on examination or additional weighted domains; the test remains multiple choice. But it does tell you the flavor of the questions: expect scenarios that a working electrician would recognize rather than pure textbook recall.

What to Practice in Domain 1

• Rearranging Ohm's Law and the power relationships fluently, without a formula sheet, until you can do them quickly on the on-screen calculator.
• Reading a schematic or wiring diagram and identifying what a fault would do to the circuit.
• Recognizing standard electrical symbols and what instrument you would reach for to take a given measurement.
• Unit conversions, since a wrong conversion produces an answer that looks plausible but fails.

Domain 1 is also where the exam leans hardest on field experience. If you have been troubleshooting in the field under a licensed master, many of these items will feel familiar. Candidates working through the math component should pair this domain with the practice resources on the main MD-JE practice test site.

Domain 2: Wiring and Protection

Domain 2 also carries 20 questions, and it is the first domain tied directly to the NEC. The source maps its subtopics to specific article ranges:

This is the backbone of residential and commercial wiring, and the heart of what a journeyperson does daily. Branch circuits, feeders, services, overcurrent devices and grounding are the topics most likely to reward a candidate who has spent real time in the code book.

Where Candidates Lose Points Here

Domain 2 questions tend to hinge on a specific table, a specific exception or a specific definition. Article 100 definitions are easy to underestimate because they read as vocabulary, but a question may turn entirely on whether you know exactly how the NEC defines a term. Grounding and bonding (Articles 250 through 285) is dense, and navigating it quickly in the book is a skill separate from understanding the concepts.

Domain 3: Wiring Methods and Materials

Domain 3 contains 12 questions and covers Chapter 3 of the NEC, subdivided in the source as follows:

The scope runs from conductor ampacity and box fill to the long list of raceway and cable types. The challenge is breadth. Each wiring method has its own article with its own "uses permitted," "uses not permitted," installation and support rules. Twelve questions will touch only a fraction of those articles, but you cannot predict which, so you need a method for scanning each article's structure quickly.

A Practical Approach

• Learn the standard internal layout of NEC articles (scope, definitions, installation, construction specifications) so you can jump to the right part of an unfamiliar article.
• Tab Article 310 and the ampacity tables, plus the box fill provisions in Article 314, since these are workhorse references.
• Compare similar methods side by side (for example, cable types and conduit types) so the differences are what you remember.

Domain 4: Equipment for General Use

Domain 4 is allocated six questions and covers a tight slice of Chapter 4:

Motors and transformers are the heavyweight topics here. Article 430 is one of the longest and most table-driven articles in the code, and motor questions often combine a table lookup with a calculation. With only six questions, you will not see every article, but you may see a motor or transformer question that pulls from Domain 1 math as well.

If you are weighing how much time each domain deserves, the question counts offer a rough guide, but our How Hard Is the MD-JE Exam? Complete Difficulty Guide 2026 discusses where candidates tend to find the exam most demanding.

Domains 5, 6 and 7: The Specialty Chapters

The last three domains correspond to NEC Chapters 5 through 8, plus the emergency and standby systems from Chapter 7. Together they account for 12 questions, a meaningful 17% of the scored exam.

Domain 5: Special Occupancies (4 questions)

Domain 6: Special Equipment (2 questions)

Domain 7: Special Communications (6 questions)

Because Domains 5 and 6 together hold only six questions, candidates sometimes treat them as expendable. That is risky, since special-occupancy and special-equipment articles are exactly where small, specific rules decide a question. A more efficient strategy is to learn the structure of the tested chapters and know where to look, rather than memorizing every rule.

The 2020 NEC and Your Reference Book

The only reference admitted for the exam in the retrieved bulletin is NFPA 70, the 2020 National Electrical Code. It is not supplied at the test center. You must bring it, and the rules about what you may do to it are specific:

• Permitted: indexing, highlighting and underlining.
• Prohibited: handwritten notes, study guides and additional papers.
• Tabs: the bulletin names Avery Swift Tabs Self-Adhesive Permanent Plastic Tabs and Redi-Tag Self-Stick Permanent Adhesive Index Tabs. Removable flags and paper-insert tabs are prohibited, and tabs that can be removed without ripping the page must be removed.

An on-screen calculator is provided. Do not assume you may bring a personal calculator, since that permission belongs to other states' exams, not this one.

The 2026 Code Question

Search results are full of 2026 NEC study guides, and some commercial products advertise Maryland journeyman prep "based on the 2026 NEC." Be careful. Board minutes from July 28, 2026 describe 2026 NEC examination questions as still being developed. Proposals and anticipated development dates do not establish an effective replacement date for the exam. The retained, retrieved examination scope is the 2020 NEC.

For help keeping all of these logistics straight, the MD-JE Cheat Sheet 2026: One-Page Review of Must-Know Facts condenses the essentials.

Exam Mechanics That Affect How You Study

The domain structure matters most when you understand the format it sits inside.

That works out to three minutes per scored question, which is generous for definition and theory items but tighter for code-lookup questions in a dense article. Because no fixed full-item total or aggregate appointment timer is established, do not plan around a precise number of total items on screen.

Separately, the Board charges USD 18.50 for the original license and USD 18.50 for renewal, effective July 1, 2025. Passing the test does not itself issue the license; you apply to the Board afterward. For a cost walkthrough, see MD-JE Certification Cost 2026: Complete Pricing Breakdown.

Eligibility in Brief

Ordinary eligibility requires four years of principally providing electrical services under a Maryland-licensed master electrician (or a similarly qualified government employee), with experience evidence and approval. Under COMAR 09.09.03.02, ordinary experience-route applicants on or after July 1, 2024 must have held a current Board or local apprentice license for four years during the qualifying work period. Prior approval is required before you can schedule, and the application is online-only. Sources conflict on whether education credit can shorten the experience requirement for journeyperson candidates, so do not assume an automatic reduction; get a Board determination. Full details are in MD-JE Requirements 2026: Eligibility, Prerequisites & How to Qualify.

Retakes and Pass Rates

If you fail, sources disagree on the waiting period: PSI specifies 30 days from the most recent failed attempt, while the Board FAQ describes 30 days before the first reapplication and 60 days for subsequent retest requests. Confirm authorization with the Board and PSI before publishing or committing to a rebooking date.

Published pass-rate evidence is likewise inconsistent. Board minutes report March journeyperson results of five passes among 27 tests, and a separate set labeled May reports 12 of 36, while the July minutes also carry a May label with 5 of 39. These samples cannot be cleanly combined or treated as a first-attempt probability. Our MD-JE Pass Rate 2026: What the Data Shows article walks through the conflict in detail.

Sequencing the Domains in Your Prep

Rather than a generic study schedule, tie your sequence to how the domains depend on each other. Domain 1 math and definitions underpin Domain 2 and Domain 4 calculations, and Article 100 definitions support everything after. A sensible order looks like this:

Adjust the timeline to your own experience; a candidate fresh from years of motor control work may compress Domain 4, while someone who rarely touches hazardous-location work will want more time on Domain 5. All practice material on this site is independently authored supplementary preparation, not actual PSI or Board questions, and it does not assess practical competence or guarantee approval. Use the question sets on the MD-JE Exam Prep practice site to test recall after each phase, and see MD-JE Exam Dates 2026: Testing Windows, Deadlines & Scheduling for scheduling logistics.

Frequently Asked Questions

Mastering the seven domains is only one part of becoming a licensed Maryland journeyperson, but it is the part you control most directly. For background on the credential itself, see What Is MD-JE?, and for the career side, Is the MD-JE Certification Worth It? Complete ROI Analysis 2026.