Colorado Books & Resources


Main Office
Mailing Address

State Electrical Board
1560 Broadway, Suite 1350
Denver, CO 80202


Email Address

dora_dpo_licensing@state.co.us


Telephone Number

303-894-7800

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This is the place to find all of the books needed for your exam and links to where they can be purchased. You can also find information about your exam and links to the governing body and testing agency. Classes4contractors.com LLC has partnered with amazon.com to provide you with the lowest cost and fastest shipping for all of your book needs.

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All testing for all electrical license types in the state of Colorado are based on the 2020 National Electrical Code.
You can purchase the reference by clicking the image below.


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License Types


Below you will find a list of license types in the state of Colorado.
Scroll down to receive more information.

Colorado Residential Wireman



Exam Information
  • There are 90 Questions on this exam.

  • You have 4 hours to complete the exam.

  • You must finish with a score of 70% (63 correct answers) to pass the exam.

  • Also includes up to 7 non-scored items with 30 minutes to complete

References used

Click here for candidate information bulletin
Subject Area

Number of Questions

General Electrical Knowledge
18
Services, Feeders, and Branch Circuits
18
Grounding and Bonding
13
Overcurrent Protection
5
Conductors and Cables
9
Raceways and Boxes
9
Special Equipment
4
Electrical Devices
8
Electrical Calculations
6
Total
90

Colorado Journeyman Wireman



Exam Information
  • There are 90 Questions on this exam.

  • You have 4 hours to complete the exam.

  • You must finish with a score of 70% (63 correct answers) to pass the exam.

  • Also includes up to 10 non-scored items with 30 minutes to complete

References used

Click here for candidate information bulletin
Subject Area

Number of Questions

General Electrical Knowledge
11
Services, Feeders, and Branch Circuits
9
Grounding and Bonding
14
Overcurrent Protection
6
Conductors and Cables
9
Raceways and Boxes
5
Special Occupancies
5
Special Equipment
5
Electrical Devices
5
Motors
6
Transformers
4
Photovoltaics
2
Electrical Calculations
9
Total
90

Colorado Master Electrician



Exam Information
  • There are 90 Questions on this exam.

  • You have 4 hours to complete the exam.

  • You must finish with a score of 70% (63 correct answers) to pass the exam.

  • Also includes up to 10 non-scored items with 30 minutes to complete

References used

Click here for candidate information bulletin
Subject Area

Number of Questions

General Electrical Knowledge
6
Services, Feeders, and Branch Circuits
11
Grounding and Bonding
14
Overcurrent Protection
5
Conductors and Cables
4
Raceways and Boxes
5
Special Occupancies
9
Special Equipment
9
Electrical Devices
4
Motors
8
Transformers
4
Photovoltaics
2
Electrical Calculations
9
Total
90

Colorado Journeyman Wireman
(6 year apprentice exam)



Exam Information
  • There are 90 Questions on this exam.

  • You have 4 hours to complete the exam.

  • You must finish with a score of 70% (63 correct answers) to pass the exam.

  • Also includes up to 7 non-scored items with 30 minutes to complete

References used

Click here for candidate information bulletin
Subject Area

Number of Questions

General Electrical Knowledge
11
Services, Feeders, and Branch Circuits
9
Grounding and Bonding
14
Overcurrent Protection
6
Conductors and Cables
9
Raceways and Boxes
5
Special Occupancies
5
Special Equipment
5
Electrical Devices
5
Motors
6
Transformers
4
Photovoltaics
2
Electrical Calculations
9
Total
90
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