What Is CT-E2?

What Is CT-E2?

CT-E2 refers specifically to the Connecticut E-2 Unlimited Electrical Journeyperson License Exam. It is the trade examination that Connecticut electricians must pass to hold the E-2 classification, which authorizes journeyperson-level electrical work performed as an employee of a properly licensed electrical contractor. This is not a national certification, a manufacturer credential, or a generic industry acronym - it is a state-issued license tied directly to the Connecticut Department of Consumer Protection (DCP) and the Electrical Work Examining Board.

If you've searched for background on this credential before, you may have landed on related pages like CT-E2 Meaning, What Does CT-E2 Stand For?, or What Is A CT-E2? - all of which cover the same Connecticut credential from slightly different angles. This article focuses on giving you the full operational picture: who administers it, how the exam works, what it covers, and what it costs.

Who Issues and Administers the CT-E2

Two entities are involved in the CT-E2 pipeline, and it's important to understand their separate roles:

• Connecticut Department of Consumer Protection (DCP) and the Electrical Work Examining Board - sets eligibility requirements, reviews and approves candidate applications, and issues the actual license once the exam is passed.
• PSI Services LLC - the third-party testing provider that writes and delivers the computer-based examination itself, publishes the official exam bulletin, and reports scores back to DCP.

Candidates must be approved by DCP before they can schedule a test with PSI. This sequencing matters: you cannot simply register for the exam on your own initiative the way you might for some vendor-neutral certifications. DCP approval is the gate that opens PSI scheduling. For a full breakdown of what DCP requires before that approval, see CT-E2 Requirements 2026: Eligibility, Prerequisites & How to Qualify.

Exam Format: Questions, Time, and Passing Score

The CT-E2 exam follows a fixed structure published in the PSI candidate bulletin (last revised February 4, 2026):

• 80 scored questions, delivered by computer at a PSI test center.
• 210 minutes total time allowed.
• Up to 10 additional unscored (pretest) questions may appear mixed into the same 210-minute window - you won't know which questions are scored, so every item should be treated as if it counts.
• Passing score is 70%, which works out to 56 of the 80 scored questions.
• The exam is open-book, meaning approved reference materials are permitted in the testing room.

Unlike Connecticut's electrical contractor licenses, the E-2 journeyperson path requires only the trade examination - there is no separate Business and Law exam to schedule or study for. That keeps the CT-E2 process more streamlined than contractor-level licensing, but it also means the trade content itself is the entire test; there's no easier companion section to offset a weak domain.

For a deeper look at exactly what 56/80 means in practice and how score reporting works, read CT-E2 Passing Score 2026: Exactly What You Need to Pass. If you're trying to gauge overall difficulty before committing study time, How Hard Is the CT-E2 Exam? Complete Difficulty Guide 2026 walks through the format's demands in more detail.

Open-Book Rules and Allowed References

The open-book format is one of the most distinctive features of the CT-E2 exam, but the rules around what you can bring are specific and enforced. Approved references 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 the specific PSI-listed selections
• 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

Notably, the Solar Photovoltaic Systems Installer Trainee Guide (NCCER, 2012) is treated as a study-only resource - it is not permitted inside the testing room, even though it's commonly used to prepare for the Photovoltaics domain.

Because you supply your own copies, the open-book advantage only helps if your books are properly tabbed and you know where to find code sections quickly - flipping through an unmarked NEC under time pressure can cost more minutes than it saves. This is exactly the kind of preparation covered in CT-E2 Study Guide 2026: How to Pass on Your First Attempt.

The 16 Content Domains

PSI's published outline breaks the 80-item CT-E2 exam into 16 domains. Question counts are not evenly distributed, so understanding relative weight helps prioritize study time.

The remaining domains - General Electrical Knowledge, Service/Feeders/Branch Circuits, Grounding and Bonding, Conductors and Cables, Special Occupancies and Equipment, Electrical Power, Motors, Low Voltage, Lighting, Illuminated Signs, Fire Detection and Alarm Systems, Safety Information, Overcurrent Protection, and High Voltage - round out the remaining questions across the 80-item exam. A full item-by-item breakdown of every domain, including which references map to each one, is available in CT-E2 Exam Domains 2026: Complete Guide to All 16 Content Areas.

Eligibility: Apprenticeship or Equivalent Experience

Before you can even schedule with PSI, DCP must approve your eligibility through one of two paths:

• Approved apprenticeship - completion of a recognized electrical apprenticeship program.
• Equivalent experience and training - DCP's equivalency route requires 8,000 on-the-job hours combined with 720 classroom hours.

Once DCP approves your application, eligibility lasts one year, and you may sit for the PSI exam an unlimited number of times during that window. This is a meaningful structural feature: if you don't pass on the first attempt, you're not locked out - but you do need to manage your own timeline so the one-year eligibility clock doesn't expire before you're ready. Full documentation requirements are detailed in CT-E2 Requirements 2026: Eligibility, Prerequisites & How to Qualify.

Fees and Total Cost to Get Licensed

Budgeting for CT-E2 involves more than one line item. The core fees are:

Since attempts are unlimited within the one-year eligibility period, the $59 PSI fee is the recurring cost to watch if you need a retake - there's no separate "retake penalty" beyond paying for another attempt. A complete cost breakdown, including how these fees stack over a multi-year licensing lifecycle, is in CT-E2 Certification Cost 2026: Complete Pricing Breakdown.

Scope of Work for an E-2 Journeyperson

An important detail that distinguishes E-2 from a contractor license: E-2 holders perform electrical work only as employees of properly licensed electrical contractors. The E-2 credential does not authorize independent contracting or running your own electrical business - it authorizes you to legally perform journeyperson-level electrical work while employed under a licensed contractor's authority.

This employment structure is also why the exam skips the Business and Law component that contractor-level licenses require - the trade knowledge tested across the 16 domains is the entire focus, because business operations aren't part of the E-2 scope of work.

License Renewal and Continuing Education

Once licensed, the E-2 credential doesn't run indefinitely without upkeep:

• The license expires annually on September 30.
• Four approved continuing education (CE) hours are due annually by June 30.
• The first renewal cycle is exempt from the CE requirement, giving newly licensed journeypersons one cycle before CE tracking begins.

Missing the September 30 expiration or the June 30 CE deadline can create renewal complications, so many license holders build these two dates into an annual calendar reminder rather than relying on memory.

Building a Study Plan Around the Domain Weights

Generic study techniques - spaced repetition, timed practice blocks, weekly review cycles - only pay off when they're mapped to the actual PSI outline rather than applied evenly across all material. Given that Raceways and Boxes carries the most questions (8) and several domains like Photovoltaics (6) draw from specific standalone references, a practical approach is to front-load weeks on the heaviest domains, then use later weeks for timed, open-book practice runs that mimic the 210-minute constraint.

For a fully worked-out week-by-week plan tied to each domain's exact question count, see CT-E2 Study Guide 2026: How to Pass on Your First Attempt. You can also use practice tests modeled on the PSI outline to gauge readiness before committing to an exam date.

Who Hires E-2 Journeypersons

Because the E-2 is an unlimited journeyperson classification tied to employment under a licensed contractor, demand comes from Connecticut electrical contracting firms that need staff capable of working across general electrical scope - not just a single specialty like limited energy or residential-only work. This breadth is part of what makes the "Unlimited" designation valuable to employers: an E-2 holder can be assigned to service and feeder work one week and lighting or motor-control work the next, without needing a separate limited license for each.

If you're weighing whether pursuing the E-2 is worth the time and fees relative to a limited license, Is the CT-E2 Certification Worth It? Complete ROI Analysis 2026 and CT-E2 Salary Guide 2026: Complete Earnings Analysis cover the tradeoffs in more depth, while CT-E2 Jobs looks at the kinds of employers and roles that typically seek this license.

Frequently Asked Questions