Licensing Exams by Trade Name - Home Link


NASCLA-Accredited Electrical Contractor

Apply for the License
Office of Statewide Electrical Contractors
3605 Missouri Boulevard
Jefferson City, MO  65102
Phone: (573) 522-3280
Exam Provider
PSI Licensure: Certification
3210 E. Tropicana
Las Vegas, NV  89121
Phone:  (855) 746-8173
Exam Type
Exam Content
Subject Areas
(from PSI bulletin)
# of
Project Design & Management8
Electrical Theory & Principles11
General Code Requirements17
Wiring and Protection17
Wiring Methods & Materials16
General Equipment Use13
Special Occupancies, Special Equipment & Special Conditions8
Communication Systems1
Total number of test questions:
Time allowed (minutes):
Books Allowed in the Exam
National Electrical Code (NFPA-70), [or] The National Electrical Code Handbook, 2017 or 2020, NFPA
Buy at Builders Book
Code of Federal Regulations, 29 CFR Part 1926 (OSHA), GPO [or] (OSHA) Selections by PSI
Buy from Publisher
A Guide to the Project Management Body of Knowledge (PMBOK), 2000, Project Management Institute
Book Source
American Electricians' Handbook, 16th Edition, Terrell Croft, Wilford Summers
Buy at Amazon
ANSI / ASHRAE / IES Standard 90.1-2016, USDOE
Web Page Link
Delmar's Standard Textbook of Electricity, 6th Edition, Stephen L. Herman
Buy at Amazon
International Residential Code, 2015, ICC
Buy at Builders Book
NASCLA Contractors Guide to Business, Law and Project Management, Basic 13th Edition, NASCLA
Buy at Amazon
NFPA 101: Life Safety Code, 2015, NFPA
Buy at Builders Book
NFPA 70E: Standard for Electrical Safety in the Workplace, 2015, NFPA
Buy at Amazon
OSHA 3071: Job Hazard Analysis Guide, 2002, USDOL
Doc Link
Grounding and Bonding, 2014, Soares
Buy at Amazon
Ugly‘s Electrical References, 2017, George Hart
Buy at Builders Book
NFPA 72: National Fire Alarm and Signaling Code, 2016, NFPA
Buy at Builders Book

QUESTION:  “What is the difference between the National Electrical Code (NEC) and the NEC Handbook?”.  The Handbook has the same content as the NEC book with additional drawings and explainations inserted.

The Handbook was designed for engineers and inspectors.  The typical exam candidate should not use it as a prefered reference unless they are using it for inspection jobs in their day-to-day work.

Additional Recommended Books
Ferm’s Fast Finder Index, 2020, IAEI
Buy at Builders Book
Tom Henry‘s Key Word Index, 2020, Tom Henry
Buy at Builders Book

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.

Available Study Materials
PSI OSHA Selections
Study Guide

Sample questions are based on the PSI publication titled “29 CFR PART 1926 Selections, as of June 2013” (hightlighted in green above).

This file contains approx. 800 sample questions.

REMINDER:  PSI uses this book for many exams they offer.  Not all sections of this code will apply to your exam.

Delivered via instant download link
Return to Top
Copyright Notice