If you’re finishing an apprenticeship and want a journeyman license, the trade exam can feel like the last big hurdle. It’s long, open-book, and expects you to find the right answer in the National Electrical Code (NEC) under time pressure. The good news is that the exam follows a published outline, and a plan that follows it can get you through on your first attempt.

The NASCLA Accredited Examination for Journeyman Electricians is one of the most portable ways to clear that hurdle. In this guide, we’ll walk you through what the exam is, how it’s formatted, all 10 content areas, the references you can bring, and the questions candidates ask most often.

What Is the NASCLA Journeyman Electrician Exam?

The National Association of State Contractors Licensing Agencies (NASCLA) runs an accredited examination program for the construction trades. It launched its electrical program in 2018 and developed it with industry partners, including the National Electrical Contractors Association (NECA), Independent Electrical Contractors (IEC), the National Electrical Manufacturers Association (NEMA), and the International Association of Electrical Inspectors (IAEI).

The journeyman exam is one of three open-book electrical exams in the program, alongside the Electrical Contractors (Master/Unlimited) and Residential Electrical Contractors exams. Its purpose is simple: pass one trade exam and use it in place of the state-specific trade exam in every participating jurisdiction that accepts it.

It’s important to understand what the exam is not. NASCLA is clear that its program does not create a national license. Each state or local agency still sets its own licensing rules, such as documented experience hours and application requirements. Passing the exam covers the trade test, and your licensing agency handles the rest.

What Is the NASCLA Journeyman Electrician Exam Format?

Here are the key facts from the current PSI Candidate Information Bulletin for the NASCLA Accredited Examination Program, dated July 7, 2026:

  • Questions: 100 scored multiple-choice items plus 10 unscored experimental items. You won’t know which ones are experimental, so answer every question carefully.
  • Time: 300 minutes (five hours).
  • Passing score: A minimum score of 70.
  • Open book: You may bring the approved references listed in the bulletin. The testing center provides a diagram and blueprint packet for plan-reading questions.
  • Code edition: You may use either the 2020 or 2023 edition of the NEC (NFPA 70) or the NEC Handbook. NASCLA states that, as of August 1, 2025, its electrical exams are based on the 2020/2023 NEC.
  • Calculator: A silent, battery-operated, non-programmable calculator without an alphabet keyboard.
  • Delivery: Computer-based testing at PSI test centers. You don’t have to live in the state where you plan to get licensed.
  • Results: You receive a PSI score report at the test site. NASCLA notes that passing candidates don’t receive a numerical score or breakdown. NASCLA uploads results to its National Examination Database (NED), which can take up to 72 hours.

Five hours sounds generous, but that’s under three minutes per question, including the unscored ones. Most of that time disappears into looking things up, which is why knowing your way around the code book matters as much as knowing the material.

What Content Outline Does the NASCLA Journeyman Exam Use?

Pocket Prep’s content aligns to the NASCLA Electrical Examination Content Outline, effective July 7, 2026. The 100 scored items are divided across 10 content areas:

  1. Interpreting Plans and Specifications: 6 items
  2. Basic Electrical Safety: 8 items
  3. Electrical Theory & Principles: 10 items
  4. Testing and Troubleshooting: 7 items
  5. General Code Requirements: 15 items
  6. Wiring & Protection: 18 items
  7. Wiring Methods & Materials: 16 items
  8. Equipment for General Use: 10 items
  9. Special Occupancies & Special Equipment: 8 items
  10. Special Conditions & Communication Systems: 2 items

The bulletin lists item counts but not subtopics. The descriptions below connect each area to the NEC chapters and references where you’ll find the answers.

Interpreting Plans and Specifications (6 items)

These questions use the diagram and blueprint packet handed out at the test center. You may need to read electrical symbols, panel schedules, riser diagrams, or specification notes and apply them to a code question.

  • Standard electrical symbols for receptacles, switches, luminaires, and panelboards
  • Reading circuit numbers, homeruns, and panel schedules
  • Scaling dimensions and counting devices from a floor plan

Study tip: Practice with real residential and light commercial prints. Knowing symbols on sight saves time you’d otherwise spend on code lookups.

Basic Electrical Safety (8 items)

This area draws on OSHA’s construction (29 CFR 1926) and general industry (29 CFR 1910) standards and NFPA 70E, Standard for Electrical Safety in the Workplace.

  • Lockout/tagout and establishing an electrically safe work condition
  • Arc flash and shock protection boundaries and personal protective equipment (PPE)
  • Ground-fault protection for temporary power on construction sites
  • Ladder, trench, and general jobsite safety that applies to electrical work

Electrical Theory & Principles (10 items)

Here you’ll apply the math behind the trade. Ugly’s Electrical References and Mike Holt’s Understanding Electrical Theory for NEC Applications are both on the approved list.

  • Ohm’s law and the power formula
  • Series and parallel circuits
  • Single-phase and three-phase power, power factor, and transformers
  • Voltage drop calculations

Testing and Troubleshooting (7 items)

This area focuses on using test equipment correctly and reasoning from symptoms to causes.

  • Multimeters, clamp meters, and insulation resistance testers
  • Checking continuity, voltage, and polarity
  • Diagnosing open circuits, shorts, and ground faults

General Code Requirements (15 items)

This is NEC Chapter 1 territory: Article 90 (introduction), Article 100 (definitions), and Article 110 (requirements for electrical installations). Expect questions on working space, conductor terminations, equipment marking, and what a defined term actually means.

What questions look like: Many items hinge on a definition, such as the difference between “readily accessible” and “accessible,” so get comfortable with Article 100.

Wiring & Protection (18 items)

The largest content area matches NEC Chapter 2. It covers grounded conductors, branch circuits, feeders, load calculations, services, overcurrent protection, overvoltage protection, and grounding and bonding (Articles 200 through 250).

  • Ground-fault circuit-interrupter (GFCI) and arc-fault circuit-interrupter (AFCI) requirements
  • Dwelling and commercial load calculations
  • Overcurrent device sizing and continuous loads
  • Grounding electrode systems and conductor sizing

Wiring Methods & Materials (16 items)

This area matches NEC Chapter 3, which covers conductor installation and protection.

  • Conductor ampacity and adjustment and correction factors
  • Box fill and conduit fill
  • Cable and raceway rules, such as support spacing and permitted uses for NM cable, EMT, and PVC
  • Burial depths and protection from physical damage

Equipment for General Use (10 items)

NEC Chapter 4 covers what gets connected to the wiring, including cords, luminaires, appliances, motors, air-conditioning equipment, transformers, and panelboards. Motor circuits, which use their own tables and sizing rules, are a common source of tough questions.

Special Occupancies & Special Equipment (8 items)

NEC Chapters 5 and 6 cover hazardous (classified) locations, health care facilities, places of assembly, and agricultural buildings, along with equipment such as signs, swimming pools and spas, and electric vehicle charging.

Special Conditions & Communication Systems (2 items)

NEC Chapters 7 and 8 cover emergency and standby systems, Class 2 circuits, fire alarm systems, and communications. NFPA 72, the National Fire Alarm and Signaling Code, is also on the approved reference list. With only two items, a light review is enough.

How Should You Use the Blueprint to Build a Study Plan?

  1. Weight your time. General Code Requirements, Wiring & Protection, and Wiring Methods & Materials make up 49 of the 100 scored items. Those NEC chapters deserve the most attention.
  2. Take a baseline. Answer a mixed set of practice questions before reviewing so you know which areas need the most work.
  3. Study with your actual references. Use the same NEC edition and books you’ll bring on test day. Practice finding answers with the index, not just reading.
  4. Map every miss. Tie each missed question to a content area and the article where the answer lives, then go back and mark that section.
  5. Practice under time. Plan for less than three minutes per question. If a lookup takes too long, flag it and move on.

What Official Resources Should You Use?

Commonly used NASCLA Journeyman Electrician study textbooks:

  • National Electrical Code 2020 Handbook (ISBN 978-1455922901)
  • MANCOMM’s 29 CFR 1926 OSHA Construction Industry Regulations & Standards, Millennium c1 Edition (ISBN 978-1663801197)
  • Ugly’s Electrical References, 2020 Edition (ISBN 978-1284194531)
  • Ugly’s Residential Wiring, 2020 Edition (ISBN 978-1284204841)
  • Ugly’s Electrical Safety and NFPA 70E®, 2021 Edition (ISBN 978-1284226553)
  • American Electricians’ Handbook, 17th Edition (ISBN 978-1260457919)

Frequently Asked Questions About the NASCLA Journeyman Exam

What score do I need to pass the NASCLA Journeyman Electrician?
The bulletin lists a minimum passing score of 70 for the journeyman exam. The 10 experimental items don’t count toward your score.

Can I tab and highlight my code book?
Yes, with limits. According to the bulletin, you may highlight, underline, and index approved references with permanent tabs, but they can’t include handwritten notes or loose papers. Sticky notes and other temporary tabs must be removed. Check the bulletin for the exact rules on optional index books.

How many times can I take the NASCLA Journeyman Electrician exam?
Through NASCLA, you have one year from your application approval date and up to three attempts in that window. If you don’t pass, you can reapply after the one-year eligibility period ends. Some agencies also have their own retake rules.

Which NEC edition should I study?
The bulletin allows the 2020 or 2023 NEC. Many candidates choose the edition their state has adopted, since that’s the code they’ll work under. Pick one and study with it consistently.

Which states accept the NASCLA journeyman exam?
NASCLA keeps a current list of participating electrical agencies. Some agencies accept only certain exam levels, so confirm with your licensing agency that it accepts the journeyman exam before you apply.

How do I maintain my NASCLA Journeyman Electrician certification?
According to NASCLA’s FAQ, your exam results never expire. Transcripts you buy and send to each agency can be viewed by that agency for up to two years after purchase.

Start Preparing for the NASCLA Journeyman Electrician Exam With Pocket Prep

Pocket Prep’s NASCLA Journeyman Electrician practice questions include 300 questions organized by the 10 official content areas, each with a detailed explanation of the reasoning. Use Weakest Subject quizzes to find your gaps and the Timed Quiz to practice working at exam pace. Keep chipping away, and you’ll walk into the test center with confidence.