What Is A CT-E2?

What Is the CT-E2, Exactly?

CT-E2 refers to the Connecticut E-2 Unlimited Electrical Journeyperson License examination - the trade knowledge test that the Connecticut Department of Consumer Protection (DCP) and the Electrical Work Examining Board require candidates to pass before they can hold an E-2 license. The exam itself is delivered by PSI Services LLC, the state's contracted testing provider, but DCP owns the licensing process from start to finish: reviewing your eligibility, approving you to test, and issuing the actual license once you clear the exam.

It's important to be precise about what the "E-2" classification covers. This is the Unlimited Electrical Journeyperson license - a designation that lets a qualified electrician perform electrical work across a broad range of systems and installations, but only while employed by a properly licensed contractor. It is not a contractor's license, and unlike Connecticut's contractor credentials, E-2 candidates are not required to sit for a separate Business and Law exam. The trade exam is the entire testing requirement.

Who Needs This License

The E-2 credential is built for working electricians who have already accumulated substantial field experience through an apprenticeship or an approved equivalency pathway, and who now want the state-recognized journeyperson status that lets them take on unlimited electrical work as an employee. It's the credential contractors look for when staffing residential, commercial, and industrial jobs that require licensed hands on more than just basic branch-circuit work.

Because E-2 holders can only perform electrical work as employees of properly licensed contractors, this exam matters most to people who plan to keep working for a licensed employer rather than immediately branch out on their own. If you're mapping out where this license fits into a longer career arc - including what comes after journeyperson status - the CT-E2 jobs overview and the Is the CT-E2 Certification Worth It? Complete ROI Analysis 2026 breakdown both dig into how the license translates into real hiring opportunities.

How the Exam Is Structured

The CT-E2 exam is computer-based and open-book, administered at PSI testing centers. Candidates get 210 minutes to answer 80 scored questions, and PSI may also insert up to 10 additional unscored questions within that same time window - meaning you could see up to 90 total items, but only 80 count toward your result. You won't know which questions are scored and which are experimental, so every question deserves full attention.

Because it's open-book, allowed references are a critical part of exam-day preparation, not an afterthought. Per the current PSI bulletin (revised February 4, 2026), permitted materials include:

• NEC or NEC Handbook, 2020 or 2023 edition
• Ugly's Electrical References, 2020 or 2023 edition
• OSHA 29 CFR 1926 with the latest amendments, or PSI's listed selections from it
• NFPA 72 National Fire Alarm Code, 2013 edition
• Photovoltaic Systems, third edition
• Convert Your Home to Solar Energy (2010)
• National Electrical Safety Code, 2012 edition

Note that the Solar Photovoltaic Systems Installer Trainee Guide (NCCER, 2012) is a study reference only - it is not allowed in the testing room. Candidates must bring their own copies of approved books, and PSI permits prior highlighting, underlining, annotation, and permanent tabs. What's prohibited: question-and-answer notes, loose or attached papers, temporary tabs, and any writing during the exam itself. A silent, nonprinting, nonprogrammable calculator is allowed.

For a deeper walkthrough of exactly how difficult the format feels in practice - including how the open-book structure changes your pacing strategy - see How Hard Is the CT-E2 Exam? Complete Difficulty Guide 2026.

The 16 Content Domains

PSI's published outline breaks the 80 scored questions across 16 domains. Some domains carry far more weight than others, which should directly shape how you allocate study time.

For a full breakdown of every domain with study priorities, the CT-E2 Exam Domains 2026: Complete Guide to All 16 Content Areas article covers each area in more depth than we can here.

Fees, Eligibility, and Scheduling

Getting to test day involves both DCP and PSI, and the two processes happen in a specific order. DCP approval must come first - you cannot schedule your PSI exam until DCP has confirmed you meet eligibility requirements.

Eligibility is typically met through an approved apprenticeship or documented equivalent experience and training. For candidates using DCP's equivalency route, that means 8,000 on-the-job hours combined with 720 classroom hours. Once DCP approves your eligibility, you have one year to test, and you're allowed unlimited exam attempts during that eligibility window - a meaningful advantage if your first attempt doesn't go the way you hoped.

On the cost side, the exam itself carries a PSI examination fee of $59 per attempt. Separately, DCP charges a $90 application fee, and once licensed, an annual renewal fee of $120 applies. These are distinct line items - the testing fee and the DCP administrative fees don't overlap. For the complete cost picture, including how these fees stack up over a multi-year licensing period, see CT-E2 Certification Cost 2026: Complete Pricing Breakdown. If you're still confirming whether your background qualifies you to apply, CT-E2 Requirements 2026: Eligibility, Prerequisites & How to Qualify walks through the apprenticeship and equivalency paths in detail.

What Counts as a Passing Score

The passing threshold for the CT-E2 trade exam is 70%, which works out to 56 correct answers out of the 80 scored questions. Remember that up to 10 unscored questions may also appear during your 210-minute session, but they don't factor into that 56-question threshold - you're being measured purely against the scored pool.

There's no partial credit for domain-by-domain performance; your overall percentage across all 80 scored questions is what determines pass or fail. That said, since Raceways and Boxes and other higher-weighted domains contribute more individual questions, strong performance there has an outsized effect on your overall score. For the full math behind the passing threshold and how to think about margin for error, see CT-E2 Passing Score 2026: Exactly What You Need to Pass.

After You Pass: Scope, Renewal, and CE

Passing the exam doesn't grant unrestricted authority to work independently - E-2 holders are licensed to perform electrical work only as employees of properly licensed contractors. This distinction matters for anyone comparing the E-2 journeyperson license to a contractor license track.

Once issued, the E-2 license expires annually on September 30, so renewal timing needs to be on your calendar every year. Continuing education is also part of maintaining the license: four approved CE credit hours are due annually by June 30. The one exception is your very first renewal cycle, which is exempt from the CE requirement - a detail worth confirming with DCP if you're newly licensed and unsure whether it applies to you.

Preparing for the Domain Weighting

Generic study advice doesn't mean much without mapping it to how the CT-E2 is actually weighted. Given that Raceways and Boxes carries eight questions and Photovoltaics carries six, a practical preparation sequence puts extra time against those domains early, while the highest-count domain is still fresh heading into test day, rather than saving it for a last-minute cram.

If you want a structured week-by-week plan built entirely around CT-E2 specifics rather than generic test-prep habits, the CT-E2 Study Guide 2026: How to Pass on Your First Attempt lays out a complete plan. Running full-length timed sets on our practice test platform is one of the most direct ways to confirm your pacing across all 16 domains before exam day, and reviewing missed questions there tends to reveal exactly which domain needs another pass.

Frequently Asked Questions