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CO-JE Certification

TL;DR
  • The exam is 90 scored multiple-choice questions in 240 minutes; 63 correct (70%) is the passing line.
  • Grounding and Bonding carries the most items of any content area: 14 of 90 scored questions.
  • The exam fee is $78 initially and $73 for a retest, separate from licensing charges.
  • Confirm the NEC edition and reference arrangements with PSI directly; the bulletin and its older text conflict.

What the CO-JE Credential Actually Is

On this site, "CO-JE" refers to one thing only: the Colorado Journeyman Electrician License Exam. It is the examination a candidate must pass on the way to a Colorado journeyman electrician license. The abbreviation is a project label used here for convenience; it is not an official examination code published by the state. On the testing provider's side, the examination carries the designation Journeyman Wireman (JW).

If you are still orienting yourself, our explainers on what CO-JE is and what CO-JE stands for cover the naming in more detail. This article focuses on the practical picture: how the exam works, what it tests, and what has to happen before and after you sit for it.

Exam vs. license: Passing the examination does not by itself make you a licensed journeyman. The Board reviews your documented experience and education separately. Treat the exam as one required step in a process, not the finish line.

Who Issues the License and Who Runs the Test

Two organizations are involved, and keeping them straight prevents a lot of confusion:

  • The Colorado State Electrical Board, part of the Colorado Department of Regulatory Agencies (DORA), Division of Professions and Occupations, sets the requirements, reviews applications, and issues the license.
  • PSI Services LLC administers the computer-based examination at its test centers.

The primary scope and format document is the Board's Candidate Information Bulletin, last updated June 18, 2026. Read it directly before you schedule anything. Its content headings are the 13 areas described below, and the exam content outline is the only thing that should drive what you study. Application materials live on the Board's forms page, and the broader rules governing training and examination are in 3 CCR 710-1.

The cojeexam.com domain is an independent preparation resource and is not the issuer's website. For anything binding, such as eligibility, fees, and schedule, the Board and PSI are the authorities.

Exam Format, Timing, and the Open-Book Rules

The numbers that matter

ElementDetail
DeliveryComputer-based, multiple choice, at PSI test centers
Scored questions90
Scored-portion time240 minutes
Unscored itemsUp to 10 additional items, with 30 additional minutes
Passing standard70%, or 63 scored answers correct
Initial exam fee$78
Retest fee$73
Score reportingProvided after testing

Notice the distinction between scored and unscored content. The 240-minute figure describes the scored component. If your test includes experimental, unscored items, you receive extra time for them, so your appointment may run longer than four hours. You will not know which questions are unscored, so treat every item as if it counts. For a closer look at the threshold itself, see the CO-JE passing score breakdown.

Open book, but not your own book

The exam is open book, and this is where candidates familiar with other states' routines can get tripped up. The reference materials are supplied by PSI: the NEC and a formula page, plus an on-screen calculator. Personal references are prohibited, and writing, highlighting, underlining, or indexing the supplied references is prohibited as well. Advice you may have read elsewhere about walking in with a heavily tabbed code book does not apply here.

The practical consequence: your speed with the code comes from practice navigating the book's structure, not from markings. Learn how articles, tables, and the index are organized so you can find answers quickly in an unmarked book. The bulletin also recommends reviewing electrical theory and common formulas, not just code lookup, because a share of questions rewards knowing the math cold.

No remote-proctoring entitlement has been verified for this specific examination, so plan on an in-person PSI appointment.

The NEC 2023 vs. NEC 2026 Discrepancy

This is the single most important thing to verify before test day, because the source text is internally inconsistent.

Conflicting edition language: The retrieved bulletin states that, effective August 1, 2026, questions are consistent with the 2026 NEC and PSI supplies the 2026 NEC. It also says a 2023 book may be requested until December 1, 2026, after which that option ends. Older introductory and reference text in the same materials still specifies the 2023 NEC.

Two cautions follow from this:

  1. A 2023 book being available is not proof that you can choose a separate 2023-based exam. The availability of a reference edition and the edition the questions are written to are different things.
  2. State code adoption and the exam's stated transition are not interchangeable evidence. Do not assume that what the state has adopted tells you which edition your specific appointment will use.

The safe approach is to contact PSI directly, confirm which NEC edition your questions follow and which book you will be handed, and note the date of that confirmation. If you are testing near the transition dates, make this call part of scheduling rather than an afterthought. Our exam dates and scheduling guide covers the timing side.

The 13 Content Areas and Their Item Counts

The Board publishes the content headings and the number of scored items allocated to each. Official percentage weights are not published, so none are given here. The item counts, in heading order, total 90.

#Content AreaScored Items
1General Electrical Knowledge11
2Services, Feeders, and Branch Circuits9
3Grounding and Bonding14
4Overcurrent Protection6
5Conductors and Cables8
6Raceways and Boxes5
7Special Occupancies5
8Special Equipment6
9Electrical Devices5
10Motors6
11Transformers4
12Photovoltaics2
13Electrical Calculations9

For a full walk-through of every area, see our guide to all 13 CO-JE content areas. Here are the ones that deserve the most attention.

Grounding and Bonding (14 items)

The largest single allocation. Fourteen items means this area alone is worth more than the next-largest by a clear margin, so weakness here is expensive.

  • Distinguish grounding from bonding conceptually before memorizing any table.
  • Practice locating sizing tables for grounding electrode conductors and equipment grounding conductors in an unmarked book.
  • Work through service, separately derived system, and equipment bonding scenarios.

General Electrical Knowledge (11 items)

The second-largest allocation. This is where electrical theory shows up, which is why the bulletin urges theory review in addition to code navigation.

  • Ohm's law and power relationships should be automatic.
  • Be able to reason about series and parallel circuits without a reference.

Services, Feeders, and Branch Circuits (9 items) and Electrical Calculations (9 items)

These two tie at nine items each and overlap heavily, since many service and feeder questions are really calculation problems.

  • Practice load calculation workflows end to end, not just isolated formulas.
  • Know which code tables feed which steps of a calculation.

At the other end, Photovoltaics has just 2 items and Transformers 4. Those are real topics worth understanding, but they should not consume study time at the expense of the larger areas. The pattern also shows how the exam rewards breadth: no single area dominates, and 63 correct answers must come from across the whole outline.

Eligibility: Hours, Classroom Training, and SB25-165

Qualification rules changed with Colorado's SB25-165, signed June 3, 2025. Older descriptions you may find online, such as a 4,000-hour commercial/industrial figure and a four-year classroom lookback, are superseded by the enacted law.

The experience requirement

  • 8,000 qualifying hours over at least four years, including
  • 2,000 hours over at least two years in commercial, industrial, or substantially similar work.

The classroom requirement

  • Document at least 288 classroom-training hours during the last eight years of training, apprenticeship, or practical experience. These are tracked separately from on-the-job hours.
  • Rule 1.7(D)(1)(b) specifies 10 to 40 hours of OSHA-curriculum safety instruction within that 288-hour total. This wording is corroborated in an older version of 3 CCR 710-1, and the current rule version (the register identifies one effective July 15, 2026) should be checked for exact wording. Do not borrow the older document's superseded lookback or NEC edition.

Older training

SB25-165 lets the Board credit older training when a candidate shows at least four additional hours on the current or immediately previous NEC or other adopted standards. This is a Board-reviewed exception, not automatic credit. If your classroom hours are older than eight years, ask the Board how it would evaluate them before assuming they count.

Our CO-JE requirements guide goes deeper on documentation, and our training overview helps you find coursework that fits the classroom-hour rules.

Registration Order, Fees, and Retakes

Test first, then apply

Colorado's sequence is worth noting because it differs from some states: you take and pass the examination before submitting the license application. Passing alone does not establish licensing eligibility, since the Board still reviews your experience and education. Plan your documentation in parallel so a pass does not stall on paperwork.

What the exam fee does and does not cover

  • Initial examination fee: $78.
  • Retest fee: $73.
  • No member versus non-member examination pricing is published.
  • Licensing and renewal charges are separate from the exam fee. Current figures were not independently verified for this article, so confirm them with the Board before budgeting.

For a full view of what to budget beyond the exam seat, see the CO-JE certification cost breakdown.

If you do not pass

After a failed attempt, the bulletin permits you to schedule from the following day for the next available test date, paying the retest fee. "Next available" is the operative phrase: it does not promise an immediately open seat, so availability at your nearest center can affect how quickly you actually retake. Scores come after testing, which lets you review where you were weakest. No current first-attempt or overall candidate pass rate has been publicly verified, and the 70% passing standard is a cut score, not a pass-rate statistic. We discuss what is and is not known on our pass rate page.

Sequencing Your Preparation Around the Item Counts

You do not need a generic study system here; you need an order that matches where the points are. The timeline below is a sample built around the allocations, not an official curriculum. Adjust the pacing to your own schedule.

Block 1

Theory and calculations first

  • Work General Electrical Knowledge (11 items) and Electrical Calculations (9 items) together, since calculation fluency supports many other areas.
  • Memorize the formulas, then confirm which ones also appear on the supplied formula page.
Block 2

Grounding and Bonding

  • Give the 14-item area its own dedicated block, with timed lookups in an unmarked NEC.
  • Finish with mixed scenario questions rather than rote table recall.
Block 3

Circuit-level topics

  • Services, Feeders, and Branch Circuits (9), Conductors and Cables (8), Overcurrent Protection (6).
  • Tie each back to a load or ampacity calculation.
Block 4

Equipment and smaller areas

  • Motors (6), Special Equipment (6), Raceways and Boxes (5), Special Occupancies (5), Electrical Devices (5), Transformers (4), Photovoltaics (2).
  • Skim lightly; revisit the ones that cost you points on practice sets.

Whatever practice material you use, confirm it reflects the NEC edition your exam will use, given the transition described above. Timed drills on our CO-JE practice test platform help you build the pacing that 90 questions in 240 minutes allows, and our study guide expands on resource selection. If you want a compact refresher near test day, the one-page cheat sheet covers the key facts, and you can gauge your starting point with our difficulty overview.

Key Takeaway

Because the book is unmarked and supplied by PSI, your advantage comes from familiarity with the code's layout and from instant recall of formulas. Spend practice time doing timed lookups, not building annotated reference aids you cannot bring in.

After You Pass: Renewal and Continuing Education

Colorado electrician licenses renew on a three-year cycle with 24 continuing education hours, including at least four hours on NEC changes and no more than four credited safety hours. The current cycle expires September 30, 2026.

There is a useful exception for new licensees: initial licenses obtained by examination during October 1, 2023 through September 30, 2026 are exempt from CE until after their first renewal. A prior review also noted a renewal availability window through November 30, 2026, but that post-expiration period could not be independently confirmed and must never be treated as permission to practice on an expired license. Verify current deadlines with the Board and DORA's continuing education pages.

For the earnings and career side of the decision, see our pieces on salary, whether the certification is worth it, and the jobs it opens. No wage figures are asserted here, since reliable earnings numbers require separate sourcing.

Frequently Asked Questions

How many questions are on the Colorado journeyman electrician exam?

There are 90 scored multiple-choice questions with 240 minutes allotted. Up to 10 additional unscored items may appear, with 30 extra minutes provided for them. You pass with 63 scored answers correct, which is 70%.

Can I bring my own tabbed NEC book?

No. PSI supplies the NEC and a formula page, and an on-screen calculator is available. Personal references are prohibited, and writing, highlighting, underlining, or indexing the supplied references is not allowed.

Which NEC edition will my exam use?

The bulletin states that from August 1, 2026 questions follow the 2026 NEC and PSI supplies it, with a 2023 book available on request until December 1, 2026. Older text still references the 2023 NEC. Confirm your edition and appointment arrangements directly with PSI.

Which content area is weighted most heavily?

Grounding and Bonding has the largest allocation at 14 of 90 scored items. Official percentage weights are not published, so item counts are the most reliable guide to where points sit.

Do I take the exam before or after applying for the license?

You take and pass the examination before submitting the license application. Passing alone does not guarantee licensure, because the Board separately reviews your documented experience and classroom training.

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