Preparing for the Washington 01 General Electrician certification exam? This guide explains the apprenticeship requirement that became mandatory after July 1, 2026, how to apply through the Department of Labor & Industries (L&I), the NEC edition currently on the exam, which reference books are allowed, and the exact — and strict — rules for tabs, highlighting, and notes.
Quick Answer: What Do You Need?
| Licensing authority | Washington Department of Labor & Industries (L&I) |
| Testing provider | PSI Services LLC |
| Path to qualify | Registered apprenticeship required for nearly all new candidates as of July 1, 2026 |
| Experience hours | 8,000 hours total, including 4,000 hours in commercial/industrial installations, plus 96 classroom hours |
| Passing score | 70% |
| NEC edition | 2020 NEC (as of our last check — Washington has not moved to the 2023 or 2026 edition) |
| Books allowed | Unusually permissive — any original copyrighted material, including books containing questions and answers |
| Notes | Never allowed — not before, not during the exam |
Who Regulates Electricians in Washington?
The Washington Department of Labor & Industries (L&I) certifies electricians statewide. L&I approves your eligibility to test; PSI Services LLC administers the computer-based exam once you have an eligibility notice and Exam Unique ID.
Which Washington Certification Do You Need?
Washington's system is built around specialty categories, not a single generic license. The main certificate types are Electrician, Master Electrician, and Administrator (the business-owner credential) — each offered across specialty categories including 01-General, 02-Residential, 03-Pump & Irrigation, 04-Signs, 06-Limited Energy, 06A/B-HVAC/R, 07 series-Maintenance, 09-Telecommunications, and 10-Door/Gate Systems. This guide focuses on the 01-General Electrician exam, the most common path.
Unlike Electrician candidates, Administrator candidates need no L&I approval to register directly for a PSI exam.
The Apprenticeship-Only Requirement
This is the single biggest thing to know if you're researching an older guide: effective July 1, 2023, Washington law changed 01 Journey Level Electrician certification to an apprenticeship-only model. A transition exception let trainees with 3,000+ hours completed before July 1, 2023 continue qualifying without formal apprenticeship enrollment — but that transition window closed on July 1, 2026. As of today, virtually all new candidates must complete the work experience and education requirements of a registered RCW 49.04 apprenticeship program:
- 8,000 hours total supervised electrical work experience
- 4,000 of those hours must be in commercial/industrial installations
- 96 hours of classroom instruction (basic)
Remaining alternative paths include completing an equivalent out-of-state registered apprenticeship, holding an out-of-state journey-level certificate (8,000+ hours with 4,000 in new installations), 16,000 hours of out-of-state experience, or 8,000 hours of military construction battalion service.
How to Apply
- Submit your application to L&I at lni.wa.gov/ElectricalLicensing (select Electrician, then the Apply tab).
- Once approved, L&I sends an eligibility notice with an Exam Unique ID (your WLI_ID_Number for PSI registration).
- Register with PSI online or by phone to schedule your exam — you have one year from your approval date to pass all sections, or you must re-apply with L&I.
What Is on the 01 Electrician Exam?
The 01-General Electrician exam covers 60 NEC & Theory questions and 17 Washington Laws & Rules (RCW/WAC) questions, allotted 3 hours and 1 hour respectively. Every category — NEC 90 introduction through NEC 800-830 communications systems — is weighted differently; wiring methods (NEC 300-398) carries the heaviest weight at 10 questions. Master Electrician and Administrator exams for the same specialty add a Major Load Calculations section and cover more material.
What NEC Edition Does Washington Use?
As of our last check, the exam is based on the 2020 National Electrical Code, together with the current version of RCW 19.28 and WAC 296-46B. This is a real point of difference from states that have moved to the 2023 or 2026 NEC — don't assume the newest edition on the shelf is the right one for Washington.
Your exam may require or permit additional references. This product includes only the books/options listed on its product page — always confirm current requirements with L&I/PSI before purchasing.
What Books Are Allowed?
Washington's exam is open book, and unusually permissive about it: PSI's bulletin states it's okay to use any original copyrighted material, including material that contains questions and answers. You'll also need a working grasp of the NEC, Washington laws and rules, and basic electrical theory — many candidates bring keyword indexes to the NEC, electrical formula pocket guides, and theory handbooks in addition to the code book itself.
Copies of the Washington RCW/WAC downloaded from the internet are acceptable if printed as a PDF and placed in a binder.
Are Tabs Allowed?
Yes, permanent index tabs only, applied before you enter the examination area.
Can You Highlight Your References?
Yes, but only before the exam. Copyrighted material may have highlighting, underlining, and permanent index tabs prior to entering the examination area. Post-it, sticky, repositionable, and other removable-style notes or tabs are not permitted.
Can You Write Notes?
No — references may not be written in, period. PSI's bulletin is explicit: markings in books constitute an attempt to cheat on the examination. This matches Oklahoma's strict no-notes rule and is stricter than states like Texas or North Carolina, which allow notes added before the exam session. Washington provides two sheets of scratch paper and a pencil, which are collected at the end of the exam.
Fees and Retesting
Unlike most states, PSI charges Washington candidates by the hour rather than a flat exam fee (except the Master Electrician exam, which is billed flat regardless of sections taken):
| Exam Time | Fee |
|---|---|
| 1 hour | $45 |
| 2 hours | $55 |
| 3 hours | $65 |
| 4 hours | $75 |
Registration fees are not refundable or transferable and are valid for one year. If you fail, you must wait 14 days to retest; after a 3rd failed attempt, the wait becomes 3 months for each subsequent attempt.
How to Prepare Your Codebook
- Confirm the 2020 NEC is still current for your exam date.
- Add permanent index tabs before your exam — no Post-its or removable tabs.
- Highlight and underline before exam day — but never write notes, ever, in the book you bring.
- Consider bringing a keyword index or theory handbook alongside your code book, since Washington explicitly allows supplementary copyrighted references.
Out-of-State Experience and Reciprocity
Washington doesn't use a fixed state-by-state reciprocity list the way some states do. Instead, it evaluates out-of-state credentials as alternative qualifying paths on a case-by-case basis: an equivalent out-of-state registered apprenticeship, an out-of-state journey-level certificate (with 8,000+ hours including 4,000 in new installations), or 16,000 hours of out-of-state experience. Contact L&I directly to have your specific out-of-state background evaluated.
Frequently Asked Questions
Can I still qualify without an apprenticeship if I have years of experience?
Generally no. The transition exception that allowed experienced trainees to test without formal apprenticeship enrollment closed on July 1, 2026. Confirm your specific situation with L&I, since a small set of alternative paths (out-of-state credentials, military experience) still exist.
Can I write notes in my NEC before the Washington exam?
No. Unlike Texas or North Carolina, Washington does not allow writing in your references at any point. Highlighting, underlining, and permanent tabs are allowed before the exam; handwritten notes are not, at any time.
What NEC edition should I buy?
As of our last check, the 2020 NEC. Confirm this is still current before purchasing, since code adoption cycles do change.
How much does the exam cost?
PSI bills most Washington electrical exams by the hour ($45–$105+ depending on section length), except the Master Electrician exam, which is a flat rate.
Does Your Book Spot USA guarantee I'll pass?
No. We sell official, correctly-tabbed reference materials — no book or study guide can guarantee an exam result, and we don't claim otherwise.
Get the Correct Codebook
Once you've confirmed the current NEC edition for your exam date, shop our Washington-ready NEC codebook — with index tabs available for the permanent-tab requirement.
Ordering for a crew, apprenticeship class, or training program? Request bulk pricing.
Official Sources
- PSI Services LLC — Washington State Department of Labor & Industries Electrical Certification Candidate Information Bulletin, dated 10/30/2025 (via lni.wa.gov)
- L&I — Electrical Apprenticeship (checked August 31, 2026)
- L&I — Electrical Examination (checked August 31, 2026)
Your Book Spot USA is not affiliated with the Washington Department of Labor & Industries, 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.
