TN-EC Passing Score 2026: Exactly What You Need to Pass

The Actual Passing Score, Explained

If you're preparing for the Tennessee Electrical (CE) Contractor Examination, the number that matters most is 73%. That's the passing score set for the current Prov bulletin, and it applies to the open-book, computer-based, multiple-choice exam administered under the Tennessee Board for Licensing Contractors' Electrical (CE) classification. There's no rounding grace period, no weighted curve, and no partial credit for questions you almost got right. You either land at or above 73%, or you don't.

This is one of the most searched questions among candidates working through a TN-EC study guide, and for good reason - knowing the exact target changes how you study. A vague goal like "know the code well" is far less useful than a specific one: answer at least 73 of 100 questions correctly, within a 5-hour window, using approved references.

Exam Format: What You're Working With

The CE exam is open-book, which means you're allowed to bring or reference approved materials during the test rather than working from memory alone. The listed references are:

• The 2017 National Electrical Code (NEC)
• Ugly's Electrical References (2020 edition)
• OSHA 29 CFR Part 1926
• American Electricians' Handbook, 17th Edition

You can sit for the exam at a physical test center or remotely through Examroom delivery, whichever fits your schedule and comfort level with computer-based testing. Either way, you have 100 multiple-choice questions to answer in 5 hours - roughly three minutes per question if you pace evenly, though open-book exams rarely go that smoothly. Some questions will be quick recall; others will require flipping through the NEC or Ugly's to confirm a table value or clearance requirement.

If you're still deciding how much time to invest in preparation, it helps to first understand how hard the TN-EC exam actually is relative to your current field experience. Open-book doesn't mean easy - it means you need to know exactly where to look and how fast you can find it.

Domain Weighting and Why It Matters to Your Score

The CE exam draws from 12 content domains, and they are not weighted evenly. Two domains in particular carry outsized influence over your final score:

The remaining ten domains - General Electrical Knowledge, Plan Reading, Code Reading, Equipment for General Use, Motors and Controls, Communication Systems, Special Occupancy, Special Equipment, Hazardous Locations, and OSHA Safety - fill out the rest of the exam. None carry the same individual weight as Wiring and Protection or Wiring Methods and Materials, but together they still make up the majority of your questions. A full breakdown of what each one tests is available in the TN-EC Exam Domains guide, which is worth reading before you build a study schedule.

The Math Behind 73%

Because the exam is scored on 100 questions, the passing threshold is refreshingly simple to calculate: you need 73 correct answers. There's no scaled scoring model to decode and no need to guess how raw points translate into a final percentage. What you see is what you get.

This simplicity has a practical upside for your prep strategy. Since Wiring and Protection alone represents about 23 questions and Wiring Methods and Materials represents about 15, together these two domains could account for roughly 38 of the 100 questions on your exam. That means strong performance in just these two areas puts you more than halfway to the 73-question target before you even touch the other ten domains.

Of course, you can't pass by studying only two domains - the other 62 questions matter too, and some domains like OSHA Safety or Hazardous Locations may feel unfamiliar if your field experience has been concentrated in residential wiring rather than industrial or hazardous environments. But the weighting tells you where to spend your heaviest review hours first.

Registration, Fees, and Retake Mechanics

Passing the exam is one piece of a larger licensing process governed by the Tennessee Board for Licensing Contractors. Here's what the financial and procedural side looks like:

• The Prov exam fee is $53 per attempt.
• Exam scores are typically valid for two years, so you have a window to complete the rest of your licensing steps once you pass.
• Beyond the CE exam itself, applicants must also pass Tennessee Business and Law - a separate requirement.
• The initial contractor application fee is $250, and licenses must be renewed every two years for $200.
• Applicants must document relevant experience, provide a reference, demonstrate financial capacity (via a financial statement or Board-approved surety bond), and carry liability insurance along with workers' compensation coverage or an approved exemption.

A full cost breakdown covering every fee across the licensing journey - not just the exam attempt - is available in the TN-EC Certification Cost guide. If you're unsure whether you meet the experience, insurance, or bonding requirements before you even schedule an exam date, the TN-EC Requirements guide walks through eligibility in detail.

It's worth noting that CE is the statewide classification generally used for covered electrical projects of $25,000 or more, and it is distinct from the Limited Licensed Electrician pathway - so make sure you're studying for the classification that actually matches the scope of work you intend to perform.

Building a Study Plan Around the Passing Score

Once the target (73 correct out of 100) is clear, your study plan should be structured around domain weight rather than alphabetical order or comfort level. A reasonable approach spreads preparation across several weeks, front-loading the highest-weight domains while still touching every content area before test day.

Using spaced repetition for code sections you keep forgetting - and timing yourself on practice questions from the start - helps you build the reference-lookup speed the 5-hour limit demands. The TN-EC Study Guide expands on scheduling logic like this if you want a more granular week-by-week plan, and running realistic questions on our TN-EC practice test platform is one of the most direct ways to see whether you'd currently clear 73% before you spend money on an official attempt.

After You Hit 73%: What Comes Next

Passing the exam isn't the finish line - it's the gate that opens the rest of the licensing process. Once you clear 73%, remember that your score is typically valid for two years, giving you time to finish the remaining requirements: passing Tennessee Business and Law, submitting your experience documentation and reference, satisfying the financial capacity requirement, and securing liability insurance and workers' compensation coverage (or an exemption).

Many candidates ask whether the CE credential is worth the combined time and cost once fees, renewals, and study hours are added up. That's a fair question, and the Is the TN-EC Certification Worth It analysis and the TN-EC Salary Guide both dig into that from different angles. If you're curious how the CE exam compares to other electrical credentials in terms of who typically hires license holders, the TN-EC Jobs resource is a useful next stop.

For a fast pre-exam refresher once you've already studied the domains in depth, keep the TN-EC Cheat Sheet handy, and check the TN-EC Exam Dates guide so scheduling logistics don't become a last-minute scramble. And if you want to see how your practice performance compares to what test-takers generally report, the TN-EC Pass Rate article is a good companion read - though remember it should only ever be interpreted using verified numbers, not guesswork.