Updated October 2026 | Colorado Journeyman Electrician Exam Prep

Colorado Journeyman Electrician Contractor Exam Prep

Colorado Journeyman Wireman • PSI • 2026 NEC • 90 Scored Questions • 240 Minutes

Prepare for the Colorado Journeyman Electrician Exam with a focused study plan covering the National Electrical Code, electrical theory, services, feeders, branch circuits, conductor sizing, grounding, bonding, overcurrent protection, motors, transformers, photovoltaic systems, and electrical calculations.

The Colorado State Electrical Board regulates individual electrician licensing through the Department of Regulatory Agencies, commonly called DORA.

Colorado's official journeyman-level licensing examination is called Journeyman Wireman. It is administered by PSI Services LLC.

The exam contains 90 scored questions with 240 minutes allowed for the scored portion. Candidates must answer at least 63 questions correctly to meet the published 70% passing requirement.

PSI may also include up to ten unscored pretest questions with an additional 30 minutes. Those questions do not count toward your final examination score.

Important 2026 code update: Colorado's electrical licensing examinations began using the 2026 National Electrical Code (NEC) on August 1, 2026.

The testing center provides the 2026 NEC and a Formula Page. Candidates may not use personal reference books, highlighted materials, handwritten notes, or reference tabs.

Colorado Journeyman Electrician applicants must generally document 8,000 hours of qualifying electrical work earned over at least four years. Of those hours, at least 2,000 must be commercial or industrial electrical experience.

Applicants must also meet the 288-hour electrical classroom education requirement, subject to the current training-period and Board-review rules.

Contractor Exam Preps offers the 2026 Colorado Journeyman Electrician Ultimate Combo, including a Colorado study guide, electrical calculations guide, 2026 NEC with tabs, flash cards, and online practice.

The store also offers a 2026 Colorado Journeyman Super Combo and a 2026 Colorado Journeyman Study Guide and NEC Combo.

These books and tabs are intended for home study. During Colorado's PSI examination, you must use the clean reference materials supplied by the testing center.

One licensing distinction matters: a Journeyman Electrician license is an individual trade credential. Operating an electrical contracting business requires separate Colorado electrical contractor registration and compliance with the Board's responsible Master Electrician requirements.

This guide explains the correct state exam, its thirteen subject categories, licensing experience, classroom education, examination reference rules, electrical study materials, and a practical six-week preparation schedule.

90 SCORED • 240 MINUTES • 63 TO PASS • 2026 NEC • PSI-SUPPLIED REFERENCES
90

Official Scored Questions

70%

Passing Requirement

4H

Scored Exam Time

2026

Current NEC Exam Edition

Important Colorado Journeyman Electrician 2026 update: The Colorado Journeyman Wireman exam uses the 2026 NEC for testing beginning August 1, 2026. PSI supplies the NEC and Formula Page. Personal codebooks, highlights, tabs, or notes are not permitted. Candidates must complete 90 scored questions in 240 minutes and correctly answer at least 63 to pass. Licensing also requires qualifying experience and 288 classroom hours under Colorado State Electrical Board rules. A Journeyman Electrician license does not automatically authorize an individual to register and operate an electrical contracting business.

What Is a Colorado Journeyman Electrician?

A Colorado Journeyman Electrician is an electrical professional who has completed the state licensing requirements for the journeyman level.

The official PSI exam name is Journeyman Wireman.

Journeyman electricians are expected to understand electrical installations, electrical theory, wiring methods, equipment protection, circuits, and the National Electrical Code.

They work with residential, commercial, and industrial electrical systems within the authority granted by Colorado law.

Those systems can include branch circuits, feeders, electrical services, panelboards, motors, transformers, lighting, controls, receptacles, and related equipment.

Journeymen also need to understand grounding and bonding, conductor ampacity, raceway fill, overcurrent protection, and electrical safety.

Many electricians gain this knowledge through several years of supervised fieldwork, apprenticeship training, and classroom education.

Colorado's standard Journeyman Electrician experience path requires 8,000 qualifying hours earned over at least four years.

At least 2,000 hours must involve commercial or industrial electrical work.

Applicants must also satisfy Colorado's 288-hour electrical training requirement. The Board reviews the dates and documentation of those classroom hours under current rules.

Once a candidate meets the qualification requirements, passing the PSI examination is an important step toward obtaining the state license.

The examination measures whether a candidate can apply electrical knowledge across the types of work permitted at the journeyman level.

It does not focus on a single specialty, such as residential service changes or industrial motors.

This broad coverage is why electricians should study subjects they do not encounter every day.

A residential electrician may need extra practice with motors and transformers. Someone who works mainly on industrial equipment may need additional review of dwelling load calculations and branch circuits.

The exam rewards broad electrical knowledge, careful code reading, and practical problem-solving.

However, a journeyman license is not the same as an Electrical Contractor registration.

Colorado regulates electrical contracting businesses separately, and the state requires the appropriate signatory authority for registered contractors.

Official credential: Colorado Journeyman Electrician.

Official PSI examination: Journeyman Wireman.

State agency: Colorado State Electrical Board, DORA.

Standard experience: 8,000 qualifying hours over at least four years.

Commercial/industrial portion: 2,000 hours.

Classroom education: 288 hours.

Contractor business registration: Separate state requirement.

Review the Colorado Electrical Board's official application and experience requirements.

Colorado Journeyman Electrician Licensing Path

Follow these steps to organize electrical experience, classroom education, PSI testing, and Colorado license issuance.

Step Requirement What to Verify
Identify the License Journeyman Electrician Choose the Journeyman Wireman examination, not Residential Wireman or Master Electrician.
Record Work Experience 8,000 Hours Document qualifying electrical work earned in at least four years.
Verify Commercial Experience 2,000 Hours Show qualifying commercial or industrial work within your 8,000 hours.
Complete Classroom Training 288 Hours Provide acceptable electrical training transcripts or educational documentation.
Check Training Dates Current Board Rules Review the eight-year education lookback and any applicable refresher-training exception.
Obtain Experience Affidavits Supervising Contractor Use the Board's Affidavit of Experience documentation.
Read PSI Bulletin Exam Rules Review question counts, scoring, security, fees, and reference rules.
Study the 2026 NEC Current Exam Cycle Use the code edition applicable since August 1, 2026.
Review 13 Exam Categories Official Blueprint Practice grounding, general knowledge, services, motors, calculations, and other subjects.
Schedule PSI Exam Journeyman Wireman Use Colorado's official PSI registration and scheduling process.
Take the Exam 90 Scored Questions Complete the scored exam within 240 minutes and meet the passing standard.
Submit License Application DORA Follow the state's application process after examination passage.
Maintain Your Credential Continuing Education Complete applicable CE and renewal requirements.

Colorado Journeyman Electrician 2026 Exam Snapshot

The official Colorado PSI bulletin identifies the Journeyman Wireman exam format, approved references, and thirteen subject areas.

Exam Detail Authority Current Information
License Colorado Journeyman Electrician
Official Exam PSI Journeyman Wireman
Licensing Board DORA Colorado State Electrical Board
Testing Provider PSI Computer-based examination
Scored Questions PSI 90
Time Allowed PSI 240 minutes
Passing Requirement PSI 70%, or 63 correct
Optional Unscored Items PSI Up to 10
Additional Time for Pretest PSI 30 minutes
Exam Code Edition PSI 2026 NEC since August 1, 2026
Temporary 2023 NEC Reference Option PSI May be requested until December 1, 2026, although exam questions use 2026 NEC
Codebook PSI Supplied at testing center
Formula Page PSI Supplied at testing center
Calculator PSI Online calculator provided
Personal Books and Tabs PSI Not permitted
General Electrical Knowledge PSI 11 questions
Services, Feeders and Branch Circuits PSI 9 questions
Grounding and Bonding PSI 14 questions
Overcurrent Protection PSI 6 questions
Conductors and Cables PSI 8 questions
Raceways and Boxes PSI 5 questions
Special Occupancies PSI 5 questions
Special Equipment PSI 6 questions
Electrical Devices PSI 5 questions
Motors PSI 6 questions
Transformers PSI 4 questions
Photovoltaics PSI 2 questions
Electrical Calculations PSI 9 questions
Experience Required DORA 8,000 hours earned over at least four years
Commercial/Industrial Experience DORA 2,000 of the required hours
Classroom Education DORA 288 hours
Continuing Education DORA 24 hours per three-year licensing period, subject to first-renewal exception
Exam Fee PSI $78 listed in bulletin; confirm before paying

Exam scoring: 90 scored questions, with at least 63 correct to pass.

Time: 240 minutes for the scored portion.

2026 NEC: Applies to examination questions from August 1, 2026.

References: PSI provides the NEC and Formula Page.

Important: The Journeyman Wireman exam is different from the Residential Wireman and Master Electrician examinations.

Colorado Journeyman Electrician Exam Breakdown

The Colorado Journeyman Wireman examination covers thirteen official content categories. Each tests a different part of everyday electrical knowledge.

Grounding and Bonding is the largest subject with 14 questions. Study grounding electrodes, equipment grounding conductors, bonding jumpers, grounded conductors, fault-current paths, and equipment connections.

General Electrical Knowledge contains 11 questions. Review electrical theory, definitions, safety concepts, wiring principles, and general installation requirements.

Services, Feeders, and Branch Circuits includes nine questions. Study service equipment, feeder and branch circuit sizing, load requirements, conductor protection, and related calculations.

Electrical Calculations also includes nine questions. Practice Ohm's law, power calculations, conductor sizing, voltage drop, electrical loads, motor calculations, and code-based math.

Together, these four categories account for 43 of the 90 scored questions, or approximately 47.8% of the exam.

Conductors and Cables contains eight questions. Study conductor ampacity, insulation, temperature limits, cable types, correction factors, and installation methods.

Overcurrent Protection contains six questions. Review circuit breakers, fuses, equipment protection, standard ratings, and overcurrent device sizing.

Special Equipment contains six questions. Understand the code requirements for equipment covered by special installation articles.

Motors contains six questions. Practice motor circuits, controllers, disconnects, overload protection, and conductor selection.

Raceways and Boxes contains five questions. Study conduit types, raceway sizing, box fill, support rules, and installation conditions.

Special Occupancies contains five questions. Review hazardous locations, healthcare facilities, assembly areas, temporary installations, and other special environments.

Electrical Devices contains five questions, including receptacles, switches, controls, wiring devices, and their applications.

Transformers contains four questions. Study transformer characteristics, protection, calculations, and associated wiring requirements.

Photovoltaics contains two questions. Review basic solar electrical installation requirements and relevant NEC provisions.

The exam focuses on applying the rules correctly. Memorizing practice answers without understanding the electrical reasoning can lead to mistakes when a question is worded differently.

Official Exam Name
Colorado Journeyman Wireman
Individual License
Colorado Journeyman Electrician
Licensing Agency
Colorado State Electrical Board
Department
Colorado DORA
Test Provider
PSI
Scored Questions
90
Passing Requirement
63 correct, 70%
Exam Time
240 minutes
Possible Pretest Items
Up to 10 unscored
Additional Pretest Time
30 minutes
NEC Exam Edition
2026 NEC
Effective Date
August 1, 2026
Temporary 2023 Reference Option
Available on request until December 1, 2026, according to PSI
Reference Format
PSI-supplied NEC and Formula Page
Personal Codebook
Not permitted
Personal Tabs and Notes
Not permitted
Calculator
Online calculator supplied
Grounding and Bonding
14 questions
General Electrical Knowledge
11 questions
Services, Feeders, Branch Circuits
9 questions
Electrical Calculations
9 questions
Conductors and Cables
8 questions
Overcurrent Protection
6 questions
Special Equipment
6 questions
Motors
6 questions
Raceways and Boxes
5 questions
Special Occupancies
5 questions
Electrical Devices
5 questions
Transformers
4 questions
Photovoltaics
2 questions
Required Experience
8,000 hours over at least four years
Commercial and Industrial Hours
2,000 hours
Classroom Training
288 hours
Contractor Registration
Separate electrical contracting business requirement

How to Study for the Colorado Journeyman Electrician Exam

Begin with the official PSI Candidate Information Bulletin and the 2026 National Electrical Code.

Study the subject outline in order of importance, but include practice questions from every category.

Grounding and Bonding: Learn grounding electrodes, bonding jumpers, equipment grounding conductors, and fault-current paths.

Electrical Theory: Practice voltage, amperage, resistance, power, series circuits, and parallel circuits.

Services and Feeders: Review load calculations, disconnects, service conductors, and branch circuit requirements.

Conductors: Study ampacity, insulation, adjustment, correction factors, and allowable installation methods.

Overcurrent Protection: Review fuses, circuit breakers, standard ratings, and applicable NEC rules.

Raceways and Boxes: Practice conduit fill, box fill, support requirements, and wiring method selection.

Motors: Review motor full-load current, protection, controllers, and conductor sizing.

Transformers: Study electrical calculations, protection, and installation principles.

Photovoltaics: Review the NEC provisions relating to solar electrical equipment.

Electrical Calculations: Practice using formulas and tables under timed conditions.

When reviewing questions, locate the correct NEC section and understand why it applies.

Practice finding answers in a clean codebook. Even if you use tabs at home to learn article locations, complete some sessions without them to match Colorado's PSI testing conditions.

The Colorado Journeyman Electrician and Calculations Combo provides focused practice with electrical math and NEC code questions.

Use timed sessions to build confidence, especially for calculations involving several steps.

Electrical Service, Grounding, and Branch Circuit Diagram

The Colorado Journeyman examination includes electrical distribution and grounding systems. Understanding how service equipment, feeders, branch circuits, and grounding connect helps with both code questions and real electrical work.

SERVICE EQUIPMENT PANEL M Services • feeders • grounding • motors • photovoltaics

Simplified educational electrical diagram, not an installation drawing.

  • Service equipment: Review service conductors, disconnecting means, and equipment requirements.
  • Panelboards: Study overcurrent protection and branch circuit arrangements.
  • Feeders: Practice load and conductor sizing.
  • Grounding and bonding: Understand electrical fault protection and equipment connections.
  • Lighting circuits: Review branch circuit protection and device installation.
  • Motors: Study disconnects, controllers, conductor sizing, and protection.
  • Photovoltaics: Review solar equipment and electrical system integration.
  • Calculations: Practice using the NEC and electrical formulas correctly.

Colorado Journeyman Electrician Licensing Roadmap

Follow these eight steps to organize your training, examination preparation, and licensing process.

1

Choose the Correct License

Confirm your goal is Colorado Journeyman Electrician and select PSI's Journeyman Wireman examination.

2

Complete Qualifying Electrical Experience

Document 8,000 hours earned over at least four years, including 2,000 commercial or industrial hours.

3

Complete 288 Classroom Hours

Collect electrical training records and review the Board's current education timing rules.

4

Review PSI and NEC Requirements

Read the candidate bulletin and prepare with the 2026 National Electrical Code.

5

Study the Official Exam Categories

Review grounding, general knowledge, conductors, branch circuits, special equipment, and calculations.

6

Practice Under Exam Conditions

Take timed 90-question practice exams while using a clean NEC without personal tabs.

7

Pass the PSI Examination

Complete 90 scored questions in 240 minutes and earn at least 63 points.

8

Complete Colorado Licensing

Submit the required DORA licensing documents and maintain continuing education requirements after issuance.

Colorado Journeyman Wireman Official Exam Topic Weighting

The official PSI blueprint includes thirteen content areas totaling 90 scored questions. These percentages are calculated from the number of questions in each category.

Grounding and Bonding14 questions • 15.6%

General Electrical Knowledge11 questions • 12.2%

Services, Feeders, Branch Circuits9 questions • 10%

Electrical Calculations9 questions • 10%

Conductors and Cables8 questions • 8.9%

Overcurrent Protection6 questions • 6.7%

Special Equipment6 questions • 6.7%

Motors6 questions • 6.7%

Raceways and Boxes5 questions • 5.6%

Special Occupancies5 questions • 5.6%

Electrical Devices5 questions • 5.6%

Transformers4 questions • 4.4%

Photovoltaics2 questions • 2.2%

Total: 90 scored questions.

Largest category: Grounding and Bonding with 14 questions.

Top four combined: 43 scored questions, approximately 47.8%.

Additional items: Up to ten unscored pretest questions may appear.

Study advice: Give extra attention to the largest categories, but prepare for all thirteen topics.

Colorado Journeyman Electrician Exam Reference Books and Study Materials

Colorado PSI provides the approved NEC and Formula Page at the examination center. The references below are for preparation at home.

Study Book or Resource Edition or Format Purpose
National Electrical Code 2026 NEC Primary code edition for Colorado exams beginning August 1, 2026.
PSI Formula Page Exam-Supplied Electrical calculations during the official examination.
2026 Colorado Journeyman Electrician Study Guide Contractor Exam Preps State-focused NEC, theory, and exam-style questions.
2026 Electrician Calculations Study Guide Contractor Exam Preps Practice load calculations, voltage drop, motors, transformers, and conductor sizing.
2026 NEC with Tabs Paperback Code navigation during home study. Personal tabs cannot be brought into Colorado's PSI test.
2026 Journeyman Electrician Flash Cards Printed Cards Quick review of definitions, formulas, equipment, and electrical rules.
Journeyman Electrician Online Test Success Kit 2026 NEC Practice exams, timed study, and exam-style review.
Electrical Theory Training Apprenticeship or Technical Textbooks Strengthen understanding of voltage, resistance, current, power, and circuits.
Colorado Electrical Applications DORA Official experience, education, affidavits, and licensing requirements.
Colorado PSI Candidate Information Bulletin June 18, 2026 Update Official exam format, reference rules, topic counts, and scheduling information.

Exam code edition: 2026 NEC.

Official testing references: NEC and Formula Page supplied by PSI.

Reference tabs: Helpful at home, not permitted as personal exam-room materials.

Important transition note: The PSI bulletin says the 2023 NEC may be requested until December 1, 2026, but examination questions are consistent with the 2026 NEC beginning August 1, 2026.

How to Prepare for Colorado's PSI-Supplied NEC Examination

Colorado's Journeyman Wireman exam allows a code reference, but candidates cannot bring their own books.

PSI supplies the 2026 NEC and a Formula Page, and candidates may not write in or mark these materials.

Do These Things

  • Read the official PSI bulletin.
  • Study the 2026 NEC.
  • Learn NEC chapter organization.
  • Practice using the index.
  • Review Article 100 definitions.
  • Study grounding and bonding.
  • Practice service and feeder sizing.
  • Review conductor ampacity tables.
  • Study box and raceway fill.
  • Practice motor calculations.
  • Complete timed code questions.
  • Practice without personal tabs.

Avoid These Mistakes

  • Bringing a personal NEC book.
  • Using your own code tabs during testing.
  • Bringing handwritten notes.
  • Marking the supplied NEC.
  • Bringing unauthorized electronics.
  • Studying only the 2023 NEC.
  • Ignoring the Formula Page.
  • Skipping electrical calculations.
  • Ignoring grounding and bonding.
  • Rushing conductor sizing.
  • Confusing journeyman and master outlines.
  • Studying only familiar work topics.

Best study method: Locate the applicable NEC rule, read it carefully, and practice applying it to electrical situations.

Exam references: PSI supplies the NEC and Formula Page.

Time management: 240 minutes divided by 90 scored questions equals approximately 2.67 minutes per question.

Code navigation: Practice with an unmarked NEC to prepare for the testing-center reference.

What Can a Colorado Journeyman Electrician Do?

A Colorado Journeyman Electrician can perform electrical work within the scope established by Colorado electrical licensing law.

Journeyman-level electrical work may involve residential, commercial, and industrial installations, depending on the job and the applicable regulatory requirements.

This includes installing conductors, raceways, devices, electrical services, feeders, branch circuits, equipment, lighting, and related systems.

Journeymen may also work with motors, transformers, controls, and other electrical equipment.

Electrical safety remains a major responsibility.

Electrical workers must understand how equipment is protected, how circuits are grounded and bonded, and which methods are appropriate for particular installations.

Electrical work frequently requires reading plans, following specifications, sizing conductors, evaluating electrical loads, and selecting the correct protective devices.

Journeyman electricians must also understand the inspection and code requirements applicable to their jobs.

For example, a service installation may involve calculating loads, selecting conductors, sizing a disconnect, planning grounding electrodes, and checking working clearances.

A motor installation may involve conductor sizing, motor controllers, overload protection, and a disconnecting means.

The ability to move between these different subjects is one reason the Journeyman Wireman exam covers thirteen categories.

Colorado also regulates electrical contractors as businesses.

Passing the Journeyman Wireman exam does not automatically create an Electrical Contractor registration.

The state requires a registered contractor to meet its business and signatory authority requirements, and a Journeyman Electrician alone cannot serve as the signatory authority for an electrical contractor company.

Electricians who plan to operate an electrical contracting business should review the Master Electrician qualification and contractor registration process.

Some cities and local permitting authorities may also impose registration or project-specific requirements.

Always confirm the proper licensing and business rules before undertaking electrical contracting work.

Individual license: Colorado Journeyman Electrician.

Authorized work: Electrical work within the state's journeyman scope and applicable supervision and employment rules.

Contractor registration: Separate business requirement.

Master Electrician: Different state license level with additional qualification routes.

Colorado Apprentice, Residential, Journeyman, Master, and Contractor Comparison

License or Registration Authority Main Requirement or Purpose
Electrical Apprentice Colorado DORA Registered electrical work experience under appropriate supervision.
Residential Wireman Colorado State Electrical Board 4,000 qualifying residential hours in no less than two years, plus required classroom education.
Journeyman Electrician Colorado State Electrical Board 8,000 qualifying hours, including 2,000 commercial/industrial hours, and 288 classroom hours.
Master Electrician Colorado State Electrical Board Advanced electrical licensing with additional experience or qualifying education pathways.
Electrical Contractor Colorado State Electrical Board Separate electrical contracting business registration and signatory authority requirements.
Journeyman Wireman Exam PSI 90 scored questions, 240 minutes, 63 correct to pass.
Master Electrician Exam PSI Separate exam blueprint with 90 scored questions and a 240-minute limit.
NASCLA Journey-Level Electrician NASCLA Separate national examination, not automatically a substitute for Colorado's PSI Journeyman Wireman exam.

Journeyman Electrician: Individual license for qualifying electrical work.

Master Electrician: Separate advanced individual license.

Electrical Contractor: Separate registered business.

Important: Prepare for PSI's Colorado Journeyman Wireman examination unless your licensing authority specifically directs you to a different test.

Colorado Journeyman Electrician Licensing Requirements

Electrical Work Experience

8,000 Qualifying Hours

  • At least four years of electrical experience
  • 2,000 commercial or industrial hours
  • Practical installation work
  • Employer verification
  • Electrical Affidavit of Experience
  • Proper work documentation
  • Qualifying supervision
  • DORA review

License and Business Compliance

Colorado DORA Requirements

  • Correct license application
  • Applicable fees
  • Experience verification
  • Education transcripts
  • Passing examination result
  • Final Board approval
  • License renewal compliance
  • Continuing education
  • Separate contractor registration

Experience: 8,000 hours earned over at least four years.

Commercial/industrial work: 2,000 hours.

Classroom education: 288 hours. Under Colorado's revised rules, education timing and refresher training may affect eligibility.

License issuance: Passing the exam does not guarantee approval without meeting all state requirements.

Six-Week Colorado Journeyman Electrician Exam Prep Plan

Use six organized weeks to review the NEC, practice electrical calculations, and become more comfortable with the 90-question PSI examination.

Week 1

Exam Rules and NEC Navigation

  • Read PSI candidate bulletin
  • Review Colorado licensing rules
  • Study 2026 NEC organization
  • Practice using the index
  • Review electrical definitions
  • Complete a baseline quiz
Week 2

Grounding and Bonding

  • Study grounding electrode systems
  • Review equipment grounding
  • Practice bonding calculations
  • Study grounded conductors
  • Review fault-current paths
  • Complete timed topic questions
Week 3

Services, Feeders, and Conductors

  • Study service equipment
  • Review branch circuits
  • Practice feeder sizing
  • Review conductor ampacity
  • Study overcurrent protection
  • Practice load calculations
Week 4

Raceways, Equipment, and Motors

  • Practice box fill
  • Review conduit fill
  • Study special occupancies
  • Review electrical devices
  • Study motor circuits
  • Practice transformer questions
Week 5

Electrical Calculations and Solar

  • Review Ohm's law
  • Study power calculations
  • Practice voltage drop
  • Review motor calculations
  • Study photovoltaic provisions
  • Review weak subjects
Week 6

Full-Length Exam Practice

  • Complete 90-question mock exams
  • Use a 240-minute timer
  • Practice with an unmarked NEC
  • Review missed answers
  • Confirm examination documents
  • Plan arrival and testing logistics

How Hard Is the Colorado Journeyman Electrician Exam?

The Colorado Journeyman Wireman exam can be difficult because it combines electrical theory, NEC code rules, installation knowledge, and calculations under time pressure.

The exam contains 90 scored questions and allows four hours for the scored portion.

You must earn at least 63 correct scored answers to meet the published passing requirement.

Many electricians have years of practical experience, but a written licensing examination may test topics they do not handle every day.

For example, someone who frequently installs residential branch circuits may still need to study transformer protection, photovoltaic systems, and commercial electrical equipment.

Someone who works mainly on motors and industrial controls may need extra review of dwelling service calculations and residential wiring methods.

Grounding and Bonding is the largest subject, with 14 questions.

General Electrical Knowledge follows with 11 questions.

Services, Feeders, Branch Circuits, and Electrical Calculations each account for nine questions.

These four categories total 43 questions, almost half of the scored test.

That makes them good starting points for a focused study schedule.

However, smaller categories still matter. Photovoltaics contributes two questions, and Transformers contributes four.

Passing often depends on collecting points across all subjects rather than mastering only one area.

Another challenge is using the NEC efficiently.

Colorado provides a clean reference book at the testing center. Your personal highlights and tabs will not be available.

Practice using the table of contents, index, article numbers, definitions, and NEC tables.

Electrical calculations deserve extra attention because they can require several steps.

Write out the information given, identify the correct formula or code table, then check units before choosing an answer.

A candidate who understands electrical principles and knows where to find code rules is better prepared than someone who has simply memorized a long list of answers.

The NEC may be thick, but that does not mean your study plan needs to be complicated. Work through one topic at a time and keep checking your progress.

Colorado Journeyman Wireman PSI Exam Day Checklist

Do This

  • Confirm your PSI examination appointment.
  • Check the exact test location.
  • Review the PSI candidate bulletin.
  • Bring accepted photo identification.
  • Arrive at least 30 minutes early.
  • Review NEC chapter navigation.
  • Practice grounding and bonding.
  • Review electrical calculations.
  • Study services and feeders.
  • Understand the supplied Formula Page.
  • Review the online calculator rules.
  • Manage the 240-minute time limit.

Avoid These Mistakes

  • Bringing personal NEC books.
  • Bringing reference tabs.
  • Using highlighted study materials.
  • Writing in the supplied NEC.
  • Bringing unauthorized notes.
  • Using prohibited electronic devices.
  • Studying only the 2023 NEC.
  • Ignoring grounding and bonding.
  • Skipping calculation practice.
  • Misreading conductor sizing tables.
  • Spending too long on one question.
  • Confusing the journeyman and master exams.

PSI arrival: At least 30 minutes before the appointment.

Identification: Current valid identification matching the registered name.

Testing references: NEC and Formula Page provided by PSI.

Calculator: Online calculator available during testing.

Exam results: Provided immediately after completing the exam under the current PSI bulletin.

Colorado Journeyman Electrician Exam Prep Products from Contractor Exam Preps

Contractor Exam Preps offers Colorado-specific 2026 Journeyman Electrician books, calculations workbooks, NEC reference sets, flash cards, and online study resources.

These materials are built around the 2026 National Electrical Code, matching Colorado's examination code cycle beginning August 1, 2026.

2026 Colorado Journeyman Electrician Super Combo

Electrical Calculations, Flash Cards, and NEC

  • 2026 Colorado Journeyman Study Guide
  • 2026 Electrician Calculations Guide
  • 2026 NEC paperback
  • Study tabs
  • Journeyman Electrician Flash Cards
  • Practice electrical calculations
  • Conductor sizing
  • Overcurrent protection
  • Voltage drop
  • Motor circuits
  • Transformer review
  • Grounding and bonding

View Colorado Journeyman Super Combo

2026 Colorado Journeyman Study Guide and NEC Combo

Focused Codebook and Printed Study Package

  • 2026 Colorado Journeyman Study Guide
  • 2026 NEC paperback
  • NEC tabs for home study
  • Electrical terminology
  • Service and feeder rules
  • Grounding and bonding
  • Conductor ampacity
  • Raceways and boxes
  • Special occupancies
  • Motors and equipment
  • Code navigation practice
  • Exam-oriented review

View Colorado Journeyman NEC Combo

Calculation-focused option: The Colorado Journeyman Electrician and Calculations Study Guide Combo offers code-based math and general electrical review.

Flash-card option: The 2026 Colorado Journeyman Study Guide and Flash Card Combo supports repeated question practice and quick review.

Exam-day reminder: Personal NEC books and tabs are for home study only. Colorado PSI supplies the permitted examination references.

Before purchasing: Verify current availability, pricing, included books, and online course access.

COLORADO JOURNEYMAN ELECTRICIAN PANELBOARD M PSI WIREMAN EXAM Exam preparation artwork • Not a state-issued license

Colorado Journeyman Electrician Contractor Exam Prep

This custom Colorado electrical credential illustration features the state outline, Rocky Mountain scenery, a lightning symbol, electrical panelboard, circuit breakers, conductors, grounding, a motor, and solar equipment.

It represents electrician examination preparation and electrical trade education. It is not an official license card or certificate issued by Colorado DORA.

• Colorado State Electrical Board

• Colorado DORA

• Journeyman Electrician License

• PSI Journeyman Wireman Exam

• 90 Scored Questions

• 240-Minute Examination

• 70% Passing Standard

• 2026 National Electrical Code

• 8,000 Experience Hours

• 2,000 Commercial/Industrial Hours

• 288 Classroom Training Hours

• General Electrical Knowledge

• Grounding and Bonding

• Electrical Services

• Feeders and Branch Circuits

• Conductors and Cables

• Overcurrent Protection

• Raceways and Boxes

• Electrical Devices

• Special Occupancies

• Motors and Transformers

• Photovoltaic Systems

• Electrical Calculations

• PSI-Supplied NEC and Formula Page

• Electrical Contractor Registration Distinction

Build stronger electrical knowledge with practice questions, code-based study, calculations, and regular review of Colorado's official examination subjects.

Explore Colorado Journeyman Electrician Exam Prep

Frequently Asked Questions

Colorado Journeyman Electrician Licensing

Yes. The Colorado State Electrical Board regulates the statewide Journeyman Electrician license.

The official examination is called Journeyman Wireman.

The Colorado State Electrical Board, part of DORA's Division of Professions and Occupations.

The standard Journeyman Electrician requirement is 8,000 qualifying hours earned in no less than four years.

At least 2,000 of the required electrical work hours must be commercial or industrial experience.

Yes. Journeyman applicants generally need 288 qualifying electrical classroom training hours under current Board rules.

Colorado has revised training-period rules. The Board may review older training when the applicant meets the applicable refresher-training and documentation requirements. Check the current Electrical Board guidance before applying.

Colorado PSI Journeyman Wireman Examination

PSI Services LLC administers the examination for Colorado's State Electrical Board.

The official Journeyman Wireman examination has 90 scored questions.

240 minutes, or four hours, are allowed for the scored examination.

At least 63 correct scored answers out of 90, which equals 70%.

Yes. The exam may include up to ten unscored pretest questions and provide 30 additional minutes.

Yes. PSI administers the Colorado examination by computer.

The current PSI bulletin states that the score is provided immediately after the examination.

National Electrical Code and Reference Rules

The 2026 National Electrical Code. Colorado's exam questions began using this edition on August 1, 2026.

The PSI bulletin says the 2023 book can be provided on request until December 1, 2026. However, the questions are consistent with the 2026 NEC from August 1, so the newer edition should be the primary study reference.

It is reference-assisted using the NEC and Formula Page supplied by PSI. Personal reference materials are not allowed.

No. PSI supplies the permitted NEC reference at the examination center.

No. Personal reference materials and tabs are not permitted in the testing room, and candidates may not mark PSI's provided references.

Yes. The testing center supplies a Formula Page, but candidates must understand how to use common electrical formulas.

Yes. PSI provides access to an online calculator during the examination.

Official Examination Subjects

Grounding and Bonding, with 14 scored questions.

Eleven scored questions.

Yes. That category includes nine scored questions.

Electrical Calculations accounts for nine scored questions.

Yes. Motors includes six questions, and Transformers includes four.

Yes. Photovoltaics accounts for two scored questions.

Eight scored questions.

Yes. Special Occupancies accounts for five questions.

Electrical Contractor Registration and Advancement

No. An individual Journeyman Electrician license and Colorado Electrical Contractor registration are separate credentials.

No. Colorado's Electrical Board states that journeyman electricians cannot be company signatory authorities. Review the Master Electrician requirements for contractor registration.

Yes. Colorado's Master Electrician examination has a different topic outline and qualification requirements.

Active journeyman electricians generally need 24 hours during each three-year license period, subject to the first-renewal examination exception.

At least four hours of the required CE must address National Electrical Code changes.

Contractor Exam Preps Products

Yes. The store offers Colorado 2026 NEC-based Ultimate, Super, Calculations, and Study Guide combos.

The listed package includes the 2026 Colorado Journeyman Study Guide, Electrician Calculations Guide, 2026 NEC with tabs, Journeyman Flash Cards, and an online Test Success Kit.

Yes. It includes a dedicated 2026 Electrician Calculations Study Guide alongside a Colorado Journeyman Guide and NEC study materials.

Yes. Flash cards can help reinforce electrical definitions, NEC topics, formulas, wiring methods, and trade knowledge between longer study sessions.

No. Tabs are for studying at home. PSI supplies the examination reference books and does not permit candidates to bring personal tabbed books.

No. Exam preparation materials support learning but do not guarantee examination passage or state licensing approval.

Watch: 2026 Journeyman Electrician Exam Prep by 1 Exam Prep

Watch this related 1 Exam Prep video about preparing for the Journeyman Electrician examination with NEC code study, calculation practice, codebook navigation, and exam-taking strategies. Colorado candidates can apply these study methods to the state's 2026 NEC-based Journeyman Wireman examination.

Video: 2026 Journeyman Electrician Exam Prep License Study Guide.

Channel: 1 Exam Prep.

Related topics: 2026 NEC, electrical examination preparation, calculations, codebook study, and testing strategy.

Colorado-specific reminder: Colorado's Journeyman Wireman examination includes 90 scored questions with 240 minutes and a 70% passing standard.

Reference warning: PSI supplies the NEC and Formula Page. Personal tabbed or highlighted books cannot be used during the official test.

Watch the 1 Exam Prep Journeyman Electrician Video on YouTube

Colorado Journeyman Electrician Books, Exam Prep, and Official Resources

Use Contractor Exam Preps for Colorado-specific Journeyman Electrician books, electrical calculations, 2026 NEC references, flash cards, and online exam practice. Use the Colorado State Electrical Board and PSI for official licensing and testing rules.

Official exam: Colorado Journeyman Wireman.

Exam format: 90 scored questions, 240 minutes, 63 correct to pass.

NEC code cycle: 2026 NEC since August 1, 2026.

State qualifying experience: 8,000 hours over at least four years, including 2,000 commercial/industrial hours.

Education: 288 qualifying classroom hours, subject to current Board rules.

Exam materials: PSI provides NEC and Formula Page. Do not bring personal books or tabs.

Ready for Colorado Journeyman Electrician Contractor Exam Prep?

Prepare for Colorado's Journeyman Wireman examination with stronger knowledge of grounding, bonding, conductors, services, feeders, branch circuits, raceways, overcurrent protection, special occupancies, motors, transformers, and electrical calculations.

The official PSI examination includes 90 scored questions and allows 240 minutes for the scored portion.

Candidates must answer at least 63 scored questions correctly to meet the 70% passing standard.

The exam is based on the 2026 National Electrical Code for testing beginning August 1, 2026.

PSI provides the NEC and Formula Page, so your preparation should include learning the layout of the codebook and answering questions without relying on personal tabs or highlighted pages.

Grounding and Bonding is the largest category, with 14 questions.

General Electrical Knowledge, Services and Feeders, and Electrical Calculations are also important subjects.

Together, these four categories represent almost half of the scored exam.

Practice electrical calculations regularly. Work through each problem carefully and learn which NEC tables or formulas apply.

Review the other examination subjects as well, including wiring methods, raceways, motors, transformers, and photovoltaic systems.

Contractor Exam Preps offers Colorado-specific 2026 Journeyman Electrician Ultimate Combo packages and other study options.

These materials combine code-based learning, study guides, flash cards, calculations, and exam-style practice questions.

Colorado applicants must also meet the licensing requirements for 8,000 qualifying electrical experience hours, including 2,000 commercial or industrial hours, and complete the required classroom education.

Remember that the individual Journeyman Electrician license is different from registering an Electrical Contractor business.

If business ownership is your long-term goal, review Colorado's Master Electrician qualification and electrical contractor registration rules.

Build a practical study schedule, repeat difficult calculations, and review the official NEC rules behind every incorrect practice answer.

Strong preparation means understanding how electrical systems work and how to apply code requirements safely, correctly, and under time pressure.

Find more electrician licensing and contractor examination study materials at ContractorExamPreps.com.