The Delaware Master Electrician Guide

What Is the Delaware Master Electrician License?

The master electrician license verifies that an electrician can design, install, alter and repair electrical systems in full compliance with the National Electrical Code (NEC) — and can take responsibility for that work. In Delaware, the license is regulated by the Board of Electrical Examiners under the Division of Professional Regulation, and the exam is delivered by Prov at computer-based testing centers.

The Board issues several license classes: Master Electrician, the unrestricted top credential; Master Special, for work confined to a defined specialty; Limited and Limited Special; and Journeyperson. The master license is the one that lets you take full responsibility for electrical installations and supervise the journeypersons and apprentices working under you — the step from doing the work to owning it.

Eligibility: Board Approval Comes First

Delaware does not let you walk into the exam. The Board of Electrical Examiners reviews every application and its supporting experience documentation before you can schedule a test session with Prov. The exact hour and prerequisite bar for the master class is defined in the Board's regulations and confirmed during the application review — so start there, before you buy study materials:

• Application: submit your master application through the Division of Professional Regulation (dpr.delaware.gov/boards/electrician) with your employment and experience history documented.
• Board review: the Board verifies your qualifications and experience before granting exam eligibility. Contact the Board for current eligibility requirements and application fees.
• Licensing classes: confirm you are applying for the right class — Master, Master Special, Limited, Limited Special or Journeyperson — since each has its own scope of work and requirements.

Exam Format: 80 Questions in 180 Minutes, 75% to Pass

The Delaware Master Electrician exam is a computer-based test (CBT) delivered by Prov (provexam.com). The format is one combined exam session covering the whole electrical code:

• Length: 80 questions covering the full range of NEC subjects, from general electrical knowledge to wiring, equipment, motors, special conditions and communication systems.
• Time: 180 minutes — three hours. That is about 2 minutes and 15 seconds per question, so lookup speed is a scored skill, not a convenience.
• Pass line: 75% — roughly 60 of the 80 questions correct. Delaware's cut is higher than many states' 70%, and there is no curve: the bar is the bar.
• Vendor: examinations are administered by Prov, and scheduling happens through provexam.com once the Board approves your eligibility.

Open-Book Rules: Three References, One Strategy

The Delaware exam is open book — and the permitted reference list is wider than most states allow:

• The NEC: Delaware examines on the most up-to-date NEC adopted in the state — the NEC 2023, effective January 1, 2026.
• American Electrician's Handbook (17th edition): permitted for theory, formulas and tables.
• Ugly's Electrical References: permitted for the quick-reference tables, formulas and code summaries.

Because the code and reference books are literally in your hands, this exam does not reward memorization — it rewards navigation. Candidates who pass are the ones who know which NEC article covers grounding, which covers services, which table holds ampacity adjustments — and who can find the answer before the clock runs out. A note on editions: some printed bulletins still show older NEC references, so confirm the current code edition and the permitted reference list with the Board when you register.

Official Subject Areas (Delaware CIB)

The Board publishes the subject-area breakdown for the 80 questions. Study time should track these weights:

The pattern is clear: General Electrical Knowledge (19) is the single heaviest subject, and Wiring & Protection (15) plus Wiring Methods & Materials (15) together add another 30 questions — over half the exam sits in three columns. Master those first; the small subjects (Communication Systems at 3, Plan Reading at 4) still show up, but they are not where the exam is won.

Fees & Retakes

• Exam fee: $100, per the Delaware Candidate Information Bulletin.
• Retakes: if you fall short of the 75% pass line, you re-sit the full 80-question exam — there is no partial credit. Check the current bulletin for retake windows and rescheduling policy.
• Application & license fees: set by the Division of Professional Regulation separately from the exam fee. Contact the Board of Electrical Examiners for current fees and eligibility requirements.
• Vendor: computer-based exams are delivered by Prov through provexam.com.

A 75% pass line on an open-book exam is a specific kind of challenge: it is not harder because you must recall more — it is harder because everyone has the code, so the test separates candidates onlookup skill under time pressure. That is trainable, but only if you train the way the exam is scored: open book, timed, against the official weights.

How to Prepare

1. Confirm your eligibility with the Board. Verify the current experience requirements and fee schedule with the Delaware Board of Electrical Examiners (dpr.delaware.gov/boards/electrician) before you invest in prep.
2. Get the NEC 2023 and your reference stack. Buy the current soft-bound NEC 2023, plus the American Electrician's Handbook (17th edition) and Ugly's Electrical References if you plan to use the full permitted set. Tab the chapters and the most-used tables.
3. Learn the chapter map. Know where each topic lives — grounding in Article 250, services in Article 230, wiring methods in Chapter 3, motors in Article 430 — before you open a single practice question.
4. Drill the heavy columns first. General Electrical Knowledge (19), Wiring & Protection (15) and Wiring Methods & Materials (15) are over half the exam. Get those to exam-day speed before you touch Communication Systems or the 3-to-4-question specialties.
5. Simulate under exam conditions. Full-length, timed, open-book runs of the 80-question, 180-minute format at least once a week in the final month, aiming past the 75% line — with the clock and the books, exactly as on exam day.
6. Practice your lookup speed. At 2 minutes 15 seconds per question, index-first navigation and knowing which article covers which subject is what actually moves your score. Drill code-navigation questions the same way you drill content questions.

Master Electrician Practice is built for this exact format: code-referenced practice questions aligned to the Delaware subject blueprint, timed simulations of the 80-question, 180-minute open-book exam, full NEC theory and an AI tutor. Start with free practice questions to feel the format before you commit.

Frequently Asked Questions

Ready to Take Responsibility for the Work?

The master license is the difference between working under someone else's license and holding the credential that the work stands on. Start with the official blueprint: learn the code with our Master Electrician NEC theory guides, try free practice questions to feel the Delaware format, and register free to practice the actual subject blueprint with our simulations — one bundle covering the full exam, so you never buy prep by subject again.