2023 Colorado Master Electrician Exam Prep Study Package Includes Instructor-Led NEC Course Based on the 2023 NEC

Prepare for the Colorado Master Electrician examination with a complete study package centered on the 2023 National Electrical Code. This package combines the 2023 edition of NFPA 70, NEC tabs, electrical flash cards, a master electrician study guide, an electrical calculations study guide, simulated practice exams, and an online instructor-led NEC course featuring live and recorded video lessons.

The Colorado Master Electrician examination measures advanced electrical knowledge across a broad range of code and calculation subjects. Candidates must understand services, feeders, branch circuits, grounding and bonding, overcurrent protection, conductors, raceways, special occupancies, special equipment, motors, transformers, electrical devices, and calculations. The examination requires more than field experience alone. Candidates also need a structured understanding of code language, electrical theory, mathematical procedures, and multiple-choice testing methods.

This Colorado Master Electrician Exam Prep Study Package brings those areas together in one organized preparation system. Students can follow instructor-led lessons while working directly from the included 2023 NEC, use permanent-style tabs to organize frequently reviewed articles, reinforce technical concepts with flash cards, and practice advanced problems with the master electrician and calculations study guides.

The online course includes simulated practice exams that help candidates work on pacing, question interpretation, code research, and calculation accuracy. Live NEC instruction provides a structured learning environment, while recorded lessons allow students to pause, repeat, and revisit difficult topics throughout their preparation.

Colorado’s examination program provides the applicable National Electrical Code reference and a formula page at the testing center. Candidates cannot bring their own books, notes, tabs, or study guides into the examination room. The included NEC and tabs are therefore used for course participation and home study, helping students become familiar with the code before taking the computer-administered examination.

Colorado began transitioning its electrical examinations to the 2026 NEC on August 1, 2026. The PSI candidate bulletin states that the 2023 NEC may be requested at the testing center through November 1, 2026. Candidates testing after that date should prepare with the NEC edition required by the current Colorado examination program. This package remains a comprehensive study resource for the 2023 NEC examination option and for developing advanced electrical knowledge, calculations, and code-navigation skills.

Exam Details

The Colorado Master Electrician examination is administered by PSI for the Colorado State Electrical Board. The test is delivered by computer at approved PSI examination centers.

The Master Electrician examination contains 90 scored questions. Candidates are allowed 240 minutes for the scored portion and must answer at least 63 scored questions correctly to meet the published 70 percent passing standard. The examination may also contain up to 10 non-scored questions, with additional testing time provided for those items.

Non-scored questions are used to evaluate possible content for future examinations. They are not identified during the test and do not affect the candidate’s final result. Candidates should answer every question and manage their time as though each item will be scored.

The Colorado Master Electrician examination content outline includes:

• General electrical knowledge
• Services, feeders, and branch circuits
• Grounding and bonding
• Overcurrent protection
• Conductors and cables
• Raceways and boxes
• Special conditions
• Special occupancies
• Special equipment
• Electrical devices
• Motors
• Transformers
• Electrical calculations

Grounding and bonding represents one of the largest portions of the published examination outline. Services, feeders, and branch circuits also receive significant emphasis. Candidates should devote consistent study time to these subjects while also preparing for motors, special occupancies, special equipment, transformers, and calculation questions.

The examination is designed to measure entry-level competence for practice as a licensed Colorado Master Electrician. Questions are not limited to one specialty or a candidate’s regular area of employment. Preparation should cover the complete published outline rather than focusing only on familiar installations.

PSI provides an online calculator during the examination. Candidates should understand the electrical theory and commonly used formulas needed to complete master-level calculations. The testing program also provides a formula page with the applicable NEC reference at the examination center.

Open Book Test

The Colorado Master Electrician examination provides an approved National Electrical Code book and formula page at the testing center. Candidates may use those supplied references while completing the examination.

Personal reference materials are not permitted. Candidates cannot bring their own NEC, tabs, handwritten notes, flash cards, study guides, calculation books, notebooks, or other reading materials into the examination room. The supplied code book cannot be written in, highlighted, underlined, or indexed.

For examinations using the 2023 NEC option, the testing center supplies the 2023 National Electrical Code upon request during the transition period identified by PSI. Effective August 1, 2026, Colorado examination questions transitioned to the 2026 NEC. The 2023 NEC remains available by request through November 1, 2026, after which the testing program states that it will no longer be offered as an examination option.

Although a code book is supplied, candidates still need strong code familiarity. Searching every question from the beginning can consume too much examination time. Students should learn the structure of the NEC, recognize the articles connected to major topics, and understand how definitions, general requirements, equipment rules, tables, exceptions, and calculations work together.

The included 2023 NEC and tabs support efficient home study. Students can organize commonly reviewed articles, follow instructor demonstrations, research missed practice questions, and develop a consistent code-navigation process. The tabs are not used in the testing center because candidates must work from the unmarked reference supplied by PSI.

A productive testing method is to read the entire question, identify the primary electrical subject, determine whether a code lookup or calculation is required, and then use the supplied reference efficiently. Simulated practice exams help candidates develop this process before test day.

Licensing Steps

1. Review the Colorado Master Electrician qualifications. Determine whether your experience, training, and existing credentials meet the requirements established by Colorado law and the State Electrical Board.
2. Prepare for the examination. Study the applicable NEC edition, electrical theory, calculations, and every area listed in the Master Electrician examination content outline.
3. Register for the examination with PSI. Create a candidate account, select the Colorado Master Electrician examination, pay the examination fee, and schedule an available testing appointment.
4. Confirm the NEC edition for your appointment. Candidates using the 2023 NEC option during the transition period should follow PSI’s procedures for requesting that edition at the testing center.
5. Take the computer-administered examination. Arrive with acceptable identification and comply with PSI’s examination security requirements.
6. Receive the examination result. PSI provides the score report after the examination is completed.
7. Submit the license application. After passing, file the Master Electrician license application with the Colorado Division of Professions and Occupations.
8. Document the required qualifications. Provide the experience, education, examination, and identification information requested during the application process.
9. Complete the state review. Respond to any request for additional documents or corrections and wait for the licensing decision from the Colorado State Electrical Board.

Passing the examination does not automatically result in licensure. Applicants must still demonstrate that they satisfy the minimum qualifications established by Colorado law. The State Electrical Board and Division of Professions and Occupations determine whether an applicant meets the licensing requirements.

State Requirements

Colorado licenses electricians at several levels, including Residential Wireman, Journeyman Electrician, and Master Electrician. A Colorado Master Electrician may perform electrical work within the scope authorized by state electrical law and may hold responsibilities beyond those associated with lower license levels.

Applicants for a Master Electrician license must document the experience and qualifications required by the Colorado State Electrical Board. Qualifying experience must reflect electrical work recognized by the state and must be presented in the format required by the license application.

The state evaluates an applicant’s work history, training, existing licenses, examination result, and supporting documentation. Applicants should provide complete and consistent information, including employment dates, job duties, supervision, and the types of electrical systems involved.

Colorado also has reciprocity provisions for applicants who hold qualifying journeyman or master electrician credentials from participating states. Reciprocity depends on the licensing state, the examination used, the length of time the credential has been held, and the other conditions established by Colorado. A credential obtained through grandfathering without a state-administered examination does not satisfy the stated reciprocity standard.

Licensed Colorado Master Electricians are subject to continuing education requirements. Active Master Electricians, Journeyman Electricians, and Residential Wiremen generally must complete at least 24 hours of continuing education during each three-year license period. The requirement does not apply to the first renewal of a license issued after the applicant successfully completed a licensing examination.

Electrical work must comply with the NEC edition adopted by Colorado and any applicable state or local requirements. Examination references and field-adopted codes can change over time, so electricians should distinguish between the edition used for a scheduled examination and the edition enforced for current installations.

Reference Books

• NFPA 70: National Electrical Code, 2023 Edition
  Included with this study package and used throughout the instructor-led NEC course. The 2023 NEC supports detailed review of services, feeders, branch circuits, grounding and bonding, overcurrent protection, conductors, raceways, equipment, motors, transformers, special installations, and calculations.
• Master Electrician Study Guide
  Included advanced study material that organizes master-level electrical knowledge into a focused preparation structure.
• Electrical Calculations Study Guide
  Included calculation-focused material for practicing formulas, problem setup, mathematical procedures, and code-based electrical applications.

These books are used for preparation and course participation. Candidates may not bring personal reference books into the Colorado Master Electrician examination. PSI supplies the approved NEC and formula page at the testing center.

Test Information and Study Materials

The instructor-led NEC course helps candidates understand how the National Electrical Code is organized and how its requirements apply to practical installations. Students can follow the lessons with the included 2023 NEC open, locate the articles being discussed, and connect related requirements across different chapters.

Live lessons add structure to the preparation process. Recorded videos allow students to review difficult subjects repeatedly, pause during code searches, and revisit calculation demonstrations. This combination supports electricians who need to prepare around changing work schedules and personal responsibilities.

The master electrician study guide provides broad review of advanced trade knowledge. It helps candidates divide the examination outline into manageable study areas and identify subjects that require additional attention. The calculations study guide focuses on mathematical preparation and the process used to solve multi-step problems.

Useful calculation subjects may include:

• Service and feeder load calculations
• Branch-circuit calculations
• Conductor ampacity
• Adjustment and correction factors
• Overcurrent protection
• Motor circuits and loads
• Transformer calculations
• Raceway fill
• Box fill
• Grounding and bonding conductor sizing
• Voltage drop
• Continuous and noncontinuous loads

Electrical flash cards support frequent review of formulas, definitions, terminology, and important electrical relationships. Short daily review sessions can strengthen recall and make longer study sessions more productive.

Simulated practice exams help candidates apply their knowledge under timed conditions. Students can practice reading questions carefully, locating information in a clean NEC reference, using formulas, eliminating incorrect choices, and deciding when to move on from a difficult item.

After completing a practice exam, candidates should review every missed or uncertain question. The cause of an error may be weak code navigation, an overlooked exception, unfamiliar terminology, an incorrect formula, a mathematical mistake, or rushed reading. Correcting the process behind the mistake helps prevent similar errors later.

Because the examination uses an unmarked code book supplied by PSI, students should occasionally practice without relying on their personal tabs. This helps build familiarity with the NEC table of contents, index, article numbering, chapter structure, and common tables.

How 1 Exam Prep Helps You Reach Your Goal

1 Exam Prep helps electrical professionals organize a large amount of technical information into a practical study plan. The package combines instructor guidance, NEC education, trade-focused review, calculations practice, flash cards, and simulated exams so candidates can prepare through several complementary methods.

The instructor-led NEC course helps students understand how electrical requirements are organized and applied. Live and recorded lessons make it possible to review complex subjects more than once, while the included 2023 NEC and tabs provide a structured reference for home study.

The master electrician study guide supports broad examination review, and the calculations study guide provides focused mathematical practice. Flash cards reinforce key information between longer sessions, while simulated exams help candidates practice pacing, reference navigation, calculation accuracy, and multiple-choice strategy.

1 Exam Prep also encourages realistic preparation for Colorado’s testing format. Students can begin by learning with their tabbed NEC and study guides, then progress to timed practice using a clean reference that more closely resembles the book supplied at the testing center.

The package does not guarantee a passing score, license approval, or any specific examination outcome. Consistent study, qualifying experience, accurate application documentation, familiarity with the applicable NEC edition, and effective test-day performance remain essential. The course and materials provide an organized foundation for developing those skills and approaching the Colorado Master Electrician examination with greater confidence.

What is included in the Colorado Master Electrician Exam Prep Study Package?

The package includes the 2023 National Electrical Code, NEC tabs, electrical flash cards, a master electrician study guide, an electrical calculations study guide, an online instructor-led NEC course, simulated practice exams, and an NEC overview with live and recorded videos.

Is the course based on the 2023 NEC?

Yes. The included instructor-led NEC course and related study materials are based on the 2023 edition of NFPA 70.

Is the Colorado Master Electrician exam open book?

PSI supplies an approved National Electrical Code book and formula page at the testing center. Candidates may use those references during the examination but cannot bring personal books or notes.

Can I bring the included 2023 NEC into the testing center?

No. The included NEC is used for course participation and home study. PSI supplies the approved code book used during the examination.

Can I use my NEC tabs during the exam?

No. Personal books and tabs are not permitted. The NEC supplied at the testing center cannot be written in, highlighted, underlined, or indexed.

How many questions are on the Colorado Master Electrician exam?

The examination contains 90 scored questions and may include up to 10 additional non-scored questions.

How much time is allowed for the exam?

Candidates receive 240 minutes for the 90 scored questions. Additional time is provided when non-scored questions are included.

What score is required to pass?

The published passing standard is 70 percent, which equals 63 correct answers among the 90 scored questions.

Who administers the Colorado Master Electrician examination?

PSI administers the computer-based examination for the Colorado State Electrical Board.

Is Colorado changing from the 2023 NEC to the 2026 NEC?

Yes. Colorado examination questions transitioned to the 2026 NEC effective August 1, 2026. PSI states that the 2023 NEC may be requested through November 1, 2026, after which it will no longer be provided as an examination option.

Does the package include electrical calculation preparation?

Yes. The package includes an electrical calculations study guide, instructor-led training, flash-card review, and simulated practice designed to strengthen mathematical problem-solving skills.

Does passing the examination automatically provide a Colorado license?

No. After passing, applicants must submit a license application and demonstrate that they meet the experience and qualification requirements established by Colorado law.