Washington Electrician Exam Codebook Speed: 2020 NEC and Laws Lookup
Washington is not a one-book exam. You need speed in the 2020 NEC and speed in the Washington laws and rules binder, because the 17-question law section is scored on its own.
Last reviewed June 2026
Questions
77
Sections
2 scored
To pass
70% each
Code
2020 NEC
Law section
17 questions
Retake
Failed section only
The Washington trap
Washington's field code and exam code do not match. The exam is on the 2020 NEC, even though the field code moved forward. The second trap is the law section. A strong NEC candidate can still fail by missing RCW and WAC questions because that section needs 70% on its own.
What Washington lets you bring
Washington gives you more reference access than most states, but the proctor rules are still strict.
- National Electrical Code, 2020 Edition
- Washington electrical laws (RCW 19.28) and rules (WAC 296-46B), printed and in a binder
- Any original copyrighted material, including question-and-answer books such as Ugly's or a fast-finder
- A silent, non-printing, non-programmable calculator
The 30-minute Washington lookup drill
Split the drill the same way the exam is split. Do not spend the whole session in the NEC and leave the law binder untouched.
- NEC path: article before table: For the 60-question NEC section, practice moving from the keyword to the 2020 NEC article, then to the exact table. Ampacity, grounding, box fill, conduit fill, and motor tables deserve timed reps.
- Law path: RCW vs WAC: For the 17-question law section, first decide whether the question is statutory licensing scope or administrative rule. Then open the right printed section instead of searching the whole binder.
- Section repair after a fail: If you failed one section, drill only that section first. Washington lets you retake only the failed section, so your study should follow the score report instead of restarting both sections.
Why Washington needs a law-binder habit
The NEC cannot answer Washington law questions. Print RCW 19.28 and WAC 296-46B, put them in a clean binder, add permanent tabs, and rehearse finding scopes, permits, supervision ratios, renewal, and inspection rules. Those are fast points if you know where they live.
Where the facts come from
- L&I Electrical Examination InformationConfirms PSI administration, the 70%-per-section pass mark, open-book rules, and that the exam uses the 2020 NEC.
- L&I Electrician Licensing & RequirementsThe 8,000-hour (4,000 industrial/commercial) + 96-hour classroom requirement, 3-year renewal, and 24-hour CE rule.
- WAC 296-46B (Washington electrical code adoption)Washington's electrical administrative code. Adopts the NEC with state amendments; the Laws & Rules exam section tests RCW 19.28 + WAC 296-46B.
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