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 2023 National Electrical Code.
You can purchase the reference by clicking the image below.
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 | |
| Services, Feeders, and Branch Circuits | |
| Grounding and Bonding | |
| Overcurrent Protection | |
| Conductors and Cables | |
| Raceways and Boxes | |
| Special Equipment | |
| Electrical Devices | |
| Electrical Calculations | |
| Total |
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 | |
| Services, Feeders, and Branch Circuits | |
| Grounding and Bonding | |
| Overcurrent Protection | |
| Conductors and Cables | |
| Raceways and Boxes | |
| Special Occupancies | |
| Special Equipment | |
| Electrical Devices | |
| Motors | |
| Transformers | |
| Photovoltaics | |
| Electrical Calculations | |
| Total |
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 | |
| Services, Feeders, and Branch Circuits | |
| Grounding and Bonding | |
| Overcurrent Protection | |
| Conductors and Cables | |
| Raceways and Boxes | |
| Special Occupancies | |
| Special Equipment | |
| Electrical Devices | |
| Motors | |
| Transformers | |
| Photovoltaics | |
| Electrical Calculations | |
| Total |
Colorado Journeyman Wireman
(6 year apprentice exam)
(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 | |
| Services, Feeders, and Branch Circuits | |
| Grounding and Bonding | |
| Overcurrent Protection | |
| Conductors and Cables | |
| Raceways and Boxes | |
| Special Occupancies | |
| Special Equipment | |
| Electrical Devices | |
| Motors | |
| Transformers | |
| Photovoltaics | |
| Electrical Calculations | |
| Total |
