Licensing Exams by Trade Name - Home Link


(7C) Nonresidential Maintenance Restricted Master Electrician

Apply for the License
Washington State
Department of Labor & Industries

7273 Linderson Way SW
Tumwater, WA  98501
Phone:  (360) 902-5799
Exam Provider
PSI Services LLC
3210 E. Tropicana
Las Vegas, NV  89121
Phone:  (855) 834-8751
Exam Type
Exam Content

The exam content below contains notations in ORANGE alerting you to code sections shown in the PSI bulletin (dated 10/10/22) that have been added, removed or replaced in the 2020 NEC.

Content Areas# of
100 – 110General Requirements2
200 – 225, 242Wiring & Protection
(280-285 replaced by 242)
240Overcurrent Protection4
250Grounding & Bonding4
300 – 398Wiring Methods3
400 – 427,
455 – 480
Electrical Equipment3
430 – 450Motors, HVAC, Generators & Transformers4
500 – 516Hazardous Locations1
517 – 590Special Occupancies3
600 – 695Special Equipment2
700 – 702Emergency & Standby Systems1
705 – 770Special Conditions
(780 removed in the 2008 NEC)
800 – 840Communication Systems
(840 added in the 2011 NEC)
Washington Laws & Rules (RCW and WAC)20
General Trade Knowledge & Theory7
Total number of test questions:
Time allowed (hours):

NOTE:  Our study material for this exam will NOT include sample questions for “Major Load Calculations” and “General Trade Knowledge” specifically because they can not be created from code books or statutes.  This subject matter CAN be extracted from Ugly's Reference, Chapter 9 and Annex D of the NEC.

Books Allowed in the Exam
National Electrical Code (NFPA-70), 2020, NFPA
Buy at Amazon
Washington Electricians and Electrical Installations, Title 19, Chapter 19.28 RCW, 2018
Doc Link
Washington Electrical Safety Standards, Administration & Installation, Chapter 296‑46B WAC, 2020
Doc Link
Revisions to RCW & WAC statute sections above
Web Page Link
Additional Recommended Books
Ferm's Fast Finder Index, 2020, IAEI
Buy at Amazon
Tom Henry's Key Word Index, 2020, Tom Henry
Buy at Amazon

We highly recommend that you purchase one of the reference books above to study for your exam.  Each book is a comprehensive subject index to the NEC.  They provide an even faster way to look up answers in the code and are far more detailed than the index at the end of the code book.

Ugly's Electrical References, 2020, George Hart
Buy at Amazon
American Electricians' Handbook, 17th Edition, 2021, Frederic Hartwell
Buy at Amazon
Available Study Materials
(7C) Nonresidential Maintenance Restricted Master Electrician
Practice Exam Package

Questions are sourced from the NEC and Washington statutes shown above.

Informaion is included about additional free sample questions and links to essential sources of electrical calculations to assist in drilling for your exam.

Additional bonus questions are included from Ugly's Electrical Reference (2020) and The American Electricians' Handbook, 17th Ed.

The approx. number of practice questions in this package:  2,745

Delivered via instant download link
Return to Top
Copyright Notice