What Is the Journeyman Electrician Exam?
The journeyman electrician exam is the licensing test you must pass after completing your apprenticeship (typically 8,000+ hours of on-the-job training). Passing this exam grants you a journeyman electrician license, allowing you to work independently without direct supervision.
The exam is administered by your state or local licensing authority. While specific requirements vary by jurisdiction, the exam is almost universally based on the National Electrical Code (NEC), published by the National Fire Protection Association (NFPA) as NFPA 70.
Exam Format
Most journeyman exams follow a similar format:
| Detail | Typical Range |
|---|---|
| Number of questions | 70 – 100 multiple choice |
| Time allowed | 3 – 4 hours |
| Passing score | 70% – 75% |
| Open book? | Yes, in most states (NEC codebook allowed) |
| Cost | $50 – $200 |
| Retake policy | Wait 30–90 days; most states allow unlimited retakes |
Key point: Even though the exam is open-book, you need to be able to navigate the NEC quickly. Candidates who haven't tabbed and familiarized themselves with their codebook consistently run out of time.
What the Exam Covers
The journeyman electrician exam typically covers these NEC topics:
Core Topics (Heaviest Weight)
- NEC Article 210: Branch Circuits
- NEC Article 220: Branch-Circuit, Feeder, and Service Load Calculations
- NEC Article 230: Services
- NEC Article 240: Overcurrent Protection
- NEC Article 250: Grounding and Bonding
- NEC Article 300: General Requirements for Wiring Methods and Materials
- NEC Article 310: Conductors for General Wiring
Additional Topics
- Articles 340–392: Specific wiring methods (NM cable, conduit, raceways)
- Article 400: Flexible cords and cables
- Article 410: Luminaires (lighting fixtures)
- Article 430: Motors and motor circuits
- Article 440: Air-conditioning and refrigeration equipment
- Article 480: Storage batteries
- Article 500–516: Hazardous locations
- Article 680: Swimming pools, spas, and hot tubs
- Article 690: Solar photovoltaic systems (increasingly tested)
Calculations You Must Know
- Dwelling unit load calculations (Article 220)
- Commercial load calculations
- Conductor sizing and ampacity (Article 310, Table 310.16)
- Voltage drop calculations
- Box fill calculations (Article 314)
- Conduit fill calculations (Chapter 9 tables)
- Motor circuit calculations (Article 430)
How to Study: A Proven Strategy
1. Get the Right NEC Edition
Check which NEC edition your state uses — most have adopted the 2023 NEC or 2020 NEC. Using the wrong edition means studying the wrong article numbers and requirements.
2. Tab Your Codebook
Buy a quality set of NEC tabs. This is the single most impactful thing you can do. Tabbing allows you to locate articles in seconds instead of minutes. Popular tab sets:
- Ugly's NEC Tabs — color-coded, affordable
- Tom Henry's NEC Tabs — extensively cross-referenced
3. Work Through a Structured Prep Book
Don't just read the NEC cover to cover — use a prep book designed for the exam format.
Top Journeyman Exam Prep Books (Ranked)
1. Tom Henry's "Journeyman Electrician's Exam Workbook"
The gold standard. Tom Henry has been preparing electricians for licensing exams since 1971. This workbook walks you through calculations step by step and includes practice exams that closely mirror the actual test. Updated for each NEC cycle.
2. Mike Holt's "Journeyman Simulated Exam"
Excellent practice tests with detailed answer explanations. Mike Holt's materials are known for clear, visual explanations of NEC concepts. Best used alongside his textbook for a comprehensive study program.
3. Ray Holder's "Journeyman Electrician Exam Prep"
A budget-friendly option with solid practice questions organized by NEC article. Good for supplementing your primary study guide.
4. NFPA 70: National Electrical Code (current edition)
The codebook itself. You need your own copy — tabbed and highlighted — for both study and the exam itself.
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4. Take Practice Exams
Practice exams are critical. They help you:
- Identify weak areas to focus on
- Build speed navigating the NEC under time pressure
- Get comfortable with the question format
Aim to consistently score 80%+ on practice exams before sitting for the real thing (since the passing score is typically 70–75%, a buffer accounts for exam-day nerves).
5. Focus on Calculations
Calculations questions are where most candidates struggle. Master these formulas:
Dwelling Unit Load Calculation (General Lighting — Article 220.12): - 3 VA per square foot of living area - First 3,000 VA at 100%, remainder at 35% - Add appliance loads, dryer, range (use demand factors from Table 220.55)
Conductor Ampacity (Table 310.16): - Know how to read the table for copper and aluminum conductors - Apply correction factors for ambient temperature - Apply adjustment factors for conduit fill (Table 310.15(C)(1))
Voltage Drop: - VD = (2 × K × I × D) / CM - Where K = resistivity constant (12.9 for copper, 21.2 for aluminum), I = current, D = distance in feet, CM = circular mils
State-Specific Tips
Licensing is handled at the state level (or sometimes city/county level), so verify your local requirements:
- Which NEC edition is adopted in your state
- How many hours of apprenticeship or work experience are required
- Whether additional exams are required (some states have a state-specific supplement)
- Reciprocity — some states honor licenses from other states
Check your state licensing board's website for the most current information. We're building state-specific guides for every state — check our Career Guides section.
Test Day Tips
- Arrive early — check-in procedures can take time
- Bring your tabbed NEC — verify that your state allows the tabbed edition
- Bring an approved calculator — basic scientific calculator; no phone calculators
- Read every question fully — exam writers include deliberately tricky wording
- Skip hard questions first — answer everything you're confident about, then return to difficult ones
- Watch for "except" and "shall not" — NEC language is precise; one word changes the answer
- Double-check calculations — a misread table row is the most common mistake
What If You Fail?
It's not the end of the world. Many successful electricians didn't pass on their first attempt. Most states allow you to retake the exam after a 30–90 day waiting period. Use that time to study your weak areas, take more practice exams, and come back stronger.
Bottom Line
The journeyman electrician exam is the gateway to a licensed, well-paying career. Invest in good study materials, tab your codebook, drill the calculations, and take multiple practice exams. The exam is passable for anyone who puts in the study time — and the payoff is a career that no AI can take from you.
Sources: NFPA 70, National Electrical Code; individual state licensing board requirements. Salary data from U.S. Bureau of Labor Statistics.