DE-ME Exam Domains 2026: Complete Guide to All 10 Content Areas

DE-ME Exam Format at a Glance

Before drilling into the 10 content areas, it helps to understand the container they live inside. The Delaware Master Electrician License Exam (DE-ME) is administered by Prov on behalf of the Delaware Board of Electrical Examiners, part of the Division of Professional Regulation. Candidates get 80 questions in 3 hours, and the test is open book - a rare feature compared to many trade licensing exams. You don't need to memorize code language word-for-word; you need to know exactly where to find it and how to apply it under time pressure. A 75% passing score is required, and the exam is offered as a computer-administered test at Prov test centers or remotely through Examroom.

Every one of the 10 domains draws from that same 80-question pool, which is why understanding the relative size and scope of each domain matters more than treating them as equal-weight checklist items. For a broader look at how difficult candidates find this exam structure in practice, see How Hard Is the DE-ME Exam? Complete Difficulty Guide 2026.

How the 10 Content Areas Are Organized

Prov's bulletin organizes the DE-ME Master Electrician exam into 10 named domains, each contributing a share of the 80 total questions. General Electrical Knowledge is explicitly the largest domain, meaning it deserves the largest block of your study calendar. The remaining nine domains cover everything from blueprint interpretation to fire alarm and low-voltage systems - a reflection of how broad the scope of "Master Electrician" work actually is in Delaware.

Here's the full list of domains as they appear in the current outline:

1. General Electrical Knowledge
2. Plan Reading
3. Equipment for General Use
4. Wiring & Protection
5. Wiring Methods & Materials
6. Motors & Controls
7. Special Conditions
8. Special Equipment
9. Special Occupancies
10. Communication Systems

Because the exact number of questions per domain can shift between bulletin updates, don't over-optimize your prep around a fixed percentage. Instead, treat the domain list as a proportional map: spend the most hours on Domain 1, moderate hours on Domains 2 through 6, and lighter but non-skippable review on Domains 7 through 10.

The Core Electrical Domains (1-6)

These six domains form the backbone of the exam and correspond to the fundamentals a Master Electrician applies on nearly every job site - from service calculations to motor circuit sizing.

Special-Application Domains (7-10)

The last four domains are smaller individually but collectively test the breadth expected of a Master-level license holder - situations that go beyond routine residential and commercial branch wiring.

If you want a condensed reference that lists the highest-yield facts across all 10 domains in one place for last-week review, the DE-ME Cheat Sheet 2026: One-Page Review of Must-Know Facts is built for exactly that purpose.

Open-Book References and What You Can Bring

Because this is an open-book exam, your reference materials are as important as your study notes. Prov's June 24, 2025 bulletin names three specific texts: the 2020 NEC, the American Electricians' Handbook, 17th edition, and Ugly's Electrical References 2020. However, Delaware has adopted the 2023 NEC effective January 1, 2026, and the Board's policy is to test against the most recently adopted code. That means the assigned exam-book edition can change - verify the current requirement with Prov directly before you buy or tab a codebook.

• Permitted: permanent tabs, highlighting, and a simple four-function calculator.
• Prohibited: handwritten notes, temporary tabs, and loose inserts of any kind.

Getting Approved to Sit for Each Domain

You can't schedule the DE-ME exam simply by paying a fee - the Board requires approval through DELPROS first, which verifies your eligibility route before Prov will let you book a seat. Delaware recognizes three primary paths:

• Six years of full-time experience under a licensed Master Electrician
• An approved apprenticeship route: 8,000 supervised work hours plus 576 instructional hours (or other approved training)
• Four years under a Master Electrician plus two years of technical training

Any Delaware experience earned after June 30, 2012 must have been performed under appropriate apprentice or journeyperson licensure - unlicensed hours generally won't count toward your application. For the full breakdown of documentation, supervisor verification, and how each route is evaluated, see DE-ME Requirements 2026: Eligibility, Prerequisites & How to Qualify.

Once approved, budget for the actual costs: Prov's examination fee is $100, and the Board's application fee is $203, bringing the baseline total to $303 before books, liability insurance, or retake fees. A full financial breakdown, including what happens if you need a retake (available after a minimum seven-day interval), is covered in DE-ME Certification Cost 2026: Complete Pricing Breakdown.

Sequencing Your Prep Around the Domains

Rather than studying domains in the order they're listed, sequence your prep by weight and dependency. General Electrical Knowledge concepts - load calculations, Ohm's Law applications, code navigation - resurface inside Wiring & Protection, Motors & Controls, and even Special Equipment questions. Master that domain early so later domains build on solid footing.

If you'd rather follow a structured week-by-week plan built specifically for this exam's format and open-book rules, the DE-ME Study Guide 2026: How to Pass on Your First Attempt expands on this sequencing with more detail on daily habits. And when you're ready to test your recall under realistic time pressure, running full practice sessions on the main DE-ME practice test platform is the closest simulation you'll get to exam-day conditions.

Who Actually Tests on This Material

The scope of these 10 domains reflects the reality of Master Electrician work in Delaware: supervising crews, pulling permits, and signing off on installations across residential, commercial, and specialty settings. Employers hiring for Master-level roles - electrical contracting firms, facilities management teams, and specialty subcontractors handling health care or hazardous location work - expect candidates to be fluent across all 10 areas, not just the ones common in day-to-day residential work. If you're weighing whether this license translates into better opportunities, DE-ME Jobs and Is the DE-ME Certification Worth It? Complete ROI Analysis 2026 both dig into how the license is used once earned.

Keep in mind that holding a Master license also comes with ongoing obligations tied to this same body of knowledge: at least $300,000 in general liability coverage before licensure, and continuing education requirements at renewal - 10 approved CE hours per full cycle, with at least 5 NEC-focused hours starting with your second renewal. Licenses expire June 30 in even-numbered years, so plan your first testing attempt with that cycle in mind; see DE-ME Exam Dates 2026: Testing Windows, Deadlines & Scheduling for scheduling logistics.

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