Preparing for the Colorado Journeyman Wireman exam? This guide explains who qualifies, how to apply through the Colorado State Electrical Board (part of DORA's Division of Professions and Occupations), how the exam is scheduled through PSI, the NEC edition currently tested, and a rule that surprises a lot of candidates: you don't bring your own codebook at all — Colorado provides the NEC and a formula page at the test center, and you may not mark them.
Quick Answer: What Do You Need?
| Licensing authority | Colorado State Electrical Board (DORA / Division of Professions and Occupations) |
| Testing provider | PSI Services LLC |
| Experience needed (Journeyman) | 8,000 hours over at least 4 years, including at least 2,000 hours commercial/industrial, plus 288 classroom hours (completable over the last 8 years of your training) |
| Exam fee | $78 (retest $73), valid one year, non-refundable |
| Exam format | 90 scored items, 240 minutes, 70% (63 items) to pass, plus up to 10 non-scored items |
| NEC edition | 2026 NEC as of August 1, 2026 (the 2023 NEC remains available on request only until November 1, 2026) |
| Reference materials | NEC and formula page provided at the test center. You may not bring your own book, and may not write, highlight, underline, or index the provided copy. |
Which Colorado Electrical License Do You Need?
| License | Experience Required |
|---|---|
| Residential Wireman | 4,000 hours of residential-only experience over at least 2 years |
| Journeyman Wireman | 8,000 hours over at least 4 years, including at least 2,000 hours commercial/industrial, plus 288 classroom hours |
| Master Electrician | Typically reported as 10,000 hours over at least 5 years, or alternate education/experience pathways — confirm your exact path with DORA, since we could not verify every alternate pathway against a primary bulletin |
| CO Journeyman Wireman (6+ Year Apprentice Exam) | For apprentices with 6 or more years of registration who need to satisfy Colorado's testing requirement — same exam content as the standard Journeyman Wireman exam |
All four license types share the same testing rules, fees, and reference-material policy — the only differences are the content weighting and eligibility path.
Journeyman Wireman Eligibility Requirements
- 8,000 hours of documented apprenticeship or practical electrical experience, earned over at least 4 years.
- At least 2,000 of those hours must be in commercial or industrial work specifically.
- 288 classroom hours covering safety, the NEC and its applications, and any other Board-required training. As of SB25-165 (effective August 6, 2025), you now have up to the last 8 years of your training/apprenticeship/practical experience to complete these hours — expanded from the previous 4-year window.
- Colorado no longer requires (though it still permits) the Board to grant work-experience credit for prior academic or military training — that credit is now discretionary rather than mandatory.
- Photovoltaic systems training may now be substituted for a portion of required experience under the same 2025 law.
- Per SB21-077 (2021), lawful-presence verification is not required for licensure; applicants may use an Individual Taxpayer Identification Number (ITIN) in place of a Social Security Number.
How to Apply
- Complete the Electrical Initial License by Examination application through DORA's Online Services system (or the Spanish-language paper version, if preferred).
- Submit your Affidavit of Experience and any required supporting documentation.
- Once your eligibility to test is confirmed, register with PSI online or by phone to pay for and schedule your exam.
- After passing, file a separate license application with DORA — passing the exam does not automatically grant your license. You still need to demonstrate you meet Colorado's full qualification standards.
What Is on the Journeyman Wireman Exam?
| Content Area | Items |
|---|---|
| Grounding and Bonding | 14 |
| General Electrical Knowledge | 11 |
| Electrical Calculations | 9 |
| Services, Feeders, and Branch Circuits | 9 |
| Conductors and Cables | 8 |
| Overcurrent Protection | 6 |
| Special Equipment | 6 |
| Motors | 6 |
| Raceways and Boxes | 5 |
| Special Occupancies | 5 |
| Electrical Devices | 5 |
| Transformers | 4 |
| Photovoltaics | 2 |
| Total | 90 scored items, 240 minutes, 70% (63 items) to pass |
The exam uses a "compensatory scoring model" — your overall performance across all scored items is what matters, so strength in one content area can offset a weaker area elsewhere, rather than requiring a minimum score in each section individually. Up to 10 additional non-scored ("pre-test") items may appear, adding up to 30 extra minutes; these don't count toward your score or fail you.
What NEC Edition Does Colorado Use? (And Why It Just Changed)
Colorado's exams switched to the 2026 NEC effective August 1, 2026 — just one month before this page's last verification date. PSI's bulletin includes a transition provision: the 2023 NEC can still be provided upon request through November 1, 2026, after which only the 2026 edition will be available at the test center. If you're scheduling in the next couple of months, this window matters — confirm which edition you'll actually be tested on when you book.
Why You Don't Bring Your Own NEC
Unlike most states in this series, Colorado does not let you bring, tab, highlight, or annotate your own codebook. The current (2023 or 2026, per the transition above) NEC and a Formula Page are provided to you at the test center. PSI's bulletin is explicit: "You may not write, highlight, underline, and/or index on the references. You may not use any other materials." This applies to all four license exams equally.
What this means practically: there's no such thing as an "exam-legal tabbed Colorado NEC" — any personal codebook you own is purely a study tool for the weeks before your test, not something you'll ever open in the exam room. Review of electrical theory and common calculation formulas is also advised separately, since the "Electrical Calculations" content area draws on knowledge you're expected to already have, not just code lookup skill.
Fees & Test Locations
The exam fee is $78 (retest fee $73), valid for one year from payment, non-refundable and non-transferable. Colorado has nine fixed PSI testing centers: Broomfield, Colorado Springs, Denver (Centennial and Wheat Ridge locations), Durango, Englewood, Fort Collins, Grand Junction, Lakewood, and Pueblo — plus nationwide PSI centers if you'd rather test out of state.
Retesting & Renewal
- You cannot schedule a retest on the same day you failed — the earliest you can typically retest is the next business day, subject to seat availability.
- Licenses and registrations expire every 3 years on September 30 and must be renewed; renewal windows open roughly 4–5 weeks before expiration.
- 24 hours of continuing education are required per 3-year license period before renewal.
- New applicants issued a license within 120 days of the upcoming expiration date get bumped to the next full expiration cycle, so you don't pay for a nearly-expired license.
Reciprocity
Colorado's application system includes a dedicated "Endorsement/Reciprocity" application path (available in English and Spanish) separate from the standard exam-based application, suggesting Colorado does recognize licenses from at least some other jurisdictions. We could not locate a specific published list of reciprocal states in DORA's public materials — contact the State Electrical Board directly at 303-894-7800 or dora_electricalboard@state.co.us to confirm whether your out-of-state license qualifies before assuming a reciprocity path applies to you.
Frequently Asked Questions
Can I bring my own NEC codebook to the Colorado exam?
No. Colorado provides the current NEC and a formula page at the test center, and prohibits any writing, highlighting, underlining, or indexing on them. No personal reference materials of any kind are allowed.
What NEC edition is currently tested?
The 2026 NEC, effective August 1, 2026. The 2023 NEC remains available only on request through November 1, 2026.
How many hours of commercial/industrial experience does a Journeyman need?
At least 2,000 of your 8,000 total qualifying hours must be commercial or industrial work specifically.
Does passing the PSI exam mean I'm licensed?
No. You still need to file a separate license application with DORA and meet all of Colorado's qualification standards — passing the exam is a required step, not a guarantee of licensure.
Does Your Book Spot USA guarantee I'll pass?
No. We sell official reference materials for study purposes — no book or study guide can guarantee an exam result, and we don't claim otherwise.
Get a Study Copy of the NEC
Since the exam provides its own copy of the NEC and you can't bring or mark up your own, what you need is a personal study copy to learn from beforehand — tabs and highlighting help you study faster, even though they won't come with you into the exam room:
Ordering for a crew or apprenticeship program? Request bulk pricing.
Official Sources
- PSI Services LLC — Colorado State Electrical Board Candidate Information Bulletin, updated 6/18/2026
- Colorado DPO Electrical Board (dpo.colorado.gov/Electrical) — Applications and Forms page
- Colorado General Assembly — SB25-165, Licensure of Electricians, signed June 3, 2025, effective August 6, 2025
Your Book Spot USA is not affiliated with the Colorado State Electrical Board, DORA, PSI Services LLC, or NFPA. Candidate bulletins and licensing rules change — this page reflects our verification as of the date above. Spot something outdated? Let us know and we'll correct it.
