Washington Nonresidential Maintenance Restricted Electrician 07C Book Package

Prepare for the Washington Restricted Nonresidential Maintenance Electrician examination with a focused reference package built around the electrical code, Washington electrical law, and state administrative rules used for the 07C Restricted Nonresidential Maintenance specialty. This package includes the Revised Code of Washington (RCW) Chapter 19.28, Washington Administrative Code (WAC) Chapter 296-46B, and the National Electrical Code, NEC, 2020 Edition.

Washington identifies this specialty as 07C Restricted Nonresidential Maintenance. The classification is designed for defined maintenance, repair, and like-in-kind replacement of existing electrical utilization equipment in nonresidential settings. It includes specific restrictions involving voltage, amperage, lighting branch circuits, circuit breakers, classified locations, supply whips, external conductors, raceways, and conduit systems.

The Washington 07C Electrician examination tests National Electrical Code knowledge, general electrical theory, and Washington-specific electrical laws and rules. Candidates should be prepared for questions involving wiring and protection, overcurrent protection, grounding and bonding, wiring methods, electrical equipment, motors and HVAC equipment, special occupancies, special equipment, emergency and standby systems, special conditions, communications systems, and the Washington rules that define the 07C work scope.

Washington electrical examinations are open book. Approved references may be used during testing, so efficient reference navigation is an important part of preparation. Candidates should practice deciding whether a question is controlled by the NEC, RCW Chapter 19.28, or WAC Chapter 296-46B and then locating the applicable requirement efficiently.

The 07C classification also incorporates work defined for the 07A Nonresidential Lighting Maintenance & Lighting Retrofit and 07B Residential Maintenance specialties. Candidates should therefore understand the scope and limitations of those specialties in addition to the specific rules that apply to 07C Restricted Nonresidential Maintenance work.

This package combines the three primary references needed for organized study. The NEC provides national technical requirements, RCW Chapter 19.28 establishes Washington electrical law, and WAC Chapter 296-46B contains the detailed specialty, supervision, experience, examination, certification, permit, inspection, and contractor rules that apply in Washington.

What You Get

• Revised Code of Washington (RCW) Chapter 19.28
  Washington electrical law covering electricians, electrical trainees, contractors, certification, electrical installations, enforcement, responsibilities, and other statutory requirements affecting electrical work throughout the state.
• Washington Administrative Code (WAC) Chapter 296-46B
  Washington's detailed electrical safety, licensing, certification, examination, specialty-scope, supervision, contractor, permit, inspection, and installation rules. This reference defines the 07C Restricted Nonresidential Maintenance specialty and its work limitations.
• National Electrical Code, NEC, 2020 Edition
  The NEC edition used for the Washington electrical examination program covered by this package. It provides technical requirements for overcurrent protection, grounding and bonding, wiring methods, electrical equipment, motors, HVAC equipment, special occupancies, emergency systems, communications systems, and related electrical installations.

Exam Details

The Washington 07C Restricted Nonresidential Maintenance Electrician examination contains two required sections: NEC & Theory and Washington Codes.

• NEC & Theory: Approximately 25 questions
• Time Allowed for NEC & Theory: 1.5 hours
• Washington Codes: Approximately 17 questions
• Time Allowed for Washington Codes: 1 hour
• Total Questions: Approximately 42 questions across both sections
• Total Testing Time: Approximately 2.5 hours across both sections
• Passing Score: 70% or greater on each required examination section
• Exam Type: Open book
• Testing Provider: PSI
• Primary Code Reference: National Electrical Code, NEC, 2020 Edition

The NEC & Theory portion emphasizes the technical subjects most relevant to Restricted Nonresidential Maintenance work, including overcurrent protection, grounding and bonding, wiring methods, electrical equipment, motors and HVAC equipment, special occupancies, special equipment, emergency and standby systems, special conditions, communications systems, and general electrical theory.

The Washington Codes section focuses on Washington-specific requirements contained in RCW Chapter 19.28 and WAC Chapter 296-46B. Candidates should prepare for specialty scope, work-experience requirements, supervision, certification, examinations, permits, inspections, contractors, and the detailed restrictions that apply to 07C work.

Open Book Test

The Washington Restricted Nonresidential Maintenance Electrician examination is an open book test. Washington Labor & Industries permits approved reference materials in the testing center under established examination rules.

The 2020 National Electrical Code may be used during testing. Permanent index tabs are acceptable, while removable tabs, sticky notes, and handwritten notes are prohibited. Original copyrighted reference materials may contain highlighting, underlining, and permanent index tabs when they otherwise comply with examination requirements.

Printed copies of RCW Chapter 19.28 and WAC Chapter 296-46B may also be used. Printed Washington electrical laws and rules should be hole-punched and placed in a three-ring binder.

Because this examination includes both technical NEC content and Washington specialty rules, candidates should practice switching between references efficiently. A technical question about grounding may require the NEC, while a question about voltage limits, supply whips, circuit-breaker restrictions, or scope may require WAC Chapter 296-46B.

Open-book testing works best when candidates know the organization of the references before test day. Familiarity with the NEC index, article structure, tables, definitions, and Washington specialty provisions can reduce time spent searching for answers.

Licensing Steps

Washington Restricted Nonresidential Maintenance Electrician certification is administered through the Washington State Department of Labor & Industries. The 07C specialty is one of Washington's 2,000-hour specialty electrician pathways.

1. Begin accumulating qualifying 07C experience. Work should fall within the Restricted Nonresidential Maintenance specialty and be performed under appropriate supervision.
2. Work under an appropriately certified electrician. A trainee must be supervised by an electrician certified to perform the work or by a general journey level electrician.
3. Accumulate at least 1,000 hours for examination eligibility. Washington permits a 07C trainee to qualify for the specialty examination after completing the minimum required supervised work experience.
4. Remain under 100% supervision until passing the examination. Washington requires trainees in this 2,000-hour specialty pathway to remain fully supervised until the applicable examination is successfully completed.
5. Document qualifying work experience. Experience must be properly recorded and verified according to Washington Labor & Industries requirements.
6. Apply for examination approval. Submit the required electrician examination application and supporting documentation to L&I.
7. Receive L&I approval before scheduling. Electrician candidates must be approved before registering for the applicable PSI examination.
8. Prepare for NEC & Theory. Study the 2020 NEC with emphasis on the technical subjects associated with Restricted Nonresidential Maintenance work.
9. Prepare for Washington Codes. Study RCW Chapter 19.28 and WAC Chapter 296-46B, especially the 07C scope, supervision, experience, and certification provisions.
10. Schedule and take the PSI examination. Complete the required NEC & Theory and Washington Codes sections.
11. Pass each required examination section. A minimum score of 70% is required on each section.
12. Complete the full 2,000-hour experience requirement. Passing the examination does not eliminate the remaining work experience required for full certification.
13. Complete the certification process. Follow Washington Labor & Industries procedures for issuance of the 07C Restricted Nonresidential Maintenance Electrician certificate.

State Requirements

Washington identifies this classification as 07C Restricted Nonresidential Maintenance. Full certification requires 2,000 hours of qualifying work experience.

A trainee may become eligible to take the 07C specialty examination after completing at least 1,000 hours of qualifying experience. Until the specialty examination is successfully completed, the trainee must remain under 100 percent supervision by an electrician certified to perform the work or by a general journey level electrician.

The 07C specialty may maintain, repair, or replace like-in-kind existing electrical utilization equipment. It may also perform qualifying permit-exempt electrical work authorized under Washington rules, except for the replacement or repair of circuit breakers.

The specialty is limited to equipment and circuits of no more than 277 volts and 20 amperes for lighting branch circuits and no more than 250 volts and 60 amperes for other circuits.

Replacement of luminaires under 07C is limited to in-place replacement required because an existing luminaire has failed to operate, subject to the specific provisions in Washington rules.

Washington permits limited relocation of luminaires installed in suspended lay-in tile ceilings. A luminaire may be relocated when the original field-installed luminaire supply whip is not extended or moved to a new supply point.

When a manufactured wiring assembly supplies power to a luminaire, Washington permits limited relocation of that luminaire up to eight feet when the manufactured wiring assembly circuiting is not changed.

The 07C specialty may disconnect and reconnect low-voltage control wiring and line-voltage supply whips not more than six feet in length, provided the characteristics of the branch circuit or the whip are not modified.

For purposes of the 07C specialty, electrical equipment does not include electrical conductors, raceway systems, or conduit systems located externally to the equipment or supply whip. This rule places clear limits on how much wiring alteration may be performed under the certification.

The 07C classification includes the work defined under 07A Nonresidential Lighting Maintenance & Lighting Retrofit and 07B Residential Maintenance. Candidates should understand the permitted work and limitations of those specialties because they are incorporated into the 07C scope.

The specialty cannot perform the classified-location electrical work specifically excluded by Washington rules. Work governed by the applicable NEC hazardous-location provisions requires electrical authority outside the 07C classification.

The 07C specialty also cannot perform plumbing work regulated under Washington plumbing law. Electrical certification does not replace any separate plumbing credential that may be required.

Because this is a restricted maintenance specialty, candidates should understand the difference between permitted maintenance and replacement work and activities that amount to new electrical installation or broader system modification.

Reference Books

• Revised Code of Washington (RCW) Chapter 19.28
  This reference contains Washington statutes governing electricians, trainees, electrical contractors, certification, electrical installations, enforcement, and related legal responsibilities within the state's electrical licensing system.
• Washington Administrative Code (WAC) Chapter 296-46B
  This reference contains Washington electrical rules governing specialty classifications, work experience, supervision, examinations, permits, inspections, certification, contractors, and the detailed scope and limitations of 07C Restricted Nonresidential Maintenance work.
• National Electrical Code, NEC, 2020 Edition
  The NEC provides technical requirements covering wiring and protection, overcurrent protection, grounding and bonding, wiring methods, electrical equipment, motors, HVAC systems, special occupancies, emergency systems, special conditions, communications systems, and other maintenance-related electrical work.

Candidates should study these three references as an integrated set. Technical installation questions may point toward the NEC, while questions involving specialty authority, supervision, experience, licensing, and contractor requirements are more likely to require Washington law or administrative rules.

Exam Room Approved Books

• National Electrical Code, NEC, 2020 Edition
  The 2020 NEC is permitted during Washington electrical examinations. Permanent index tabs, highlighting, and underlining are allowed under the applicable examination rules, while handwritten notes, removable tabs, and sticky notes are prohibited.
• Revised Code of Washington (RCW) Chapter 19.28
  Printed copies of Washington electrical law may be used during the examination when prepared according to Labor & Industries testing requirements.
• Washington Administrative Code (WAC) Chapter 296-46B
  Printed copies of Washington electrical rules may be used during testing when prepared according to the applicable examination requirements.

Using the same references throughout preparation and on examination day can help candidates become familiar with code organization, article numbers, definitions, tables, specialty rules, and frequently referenced Washington provisions.

Test Information and Study Materials

Overcurrent Protection: Review circuit breakers, fuses, conductor protection, equipment ratings, and branch-circuit protection. Pay particular attention to the Washington restriction that excludes circuit-breaker repair and replacement from the permit-exempt maintenance authority of 07C.

Grounding and Bonding: Study equipment grounding conductors, bonding, grounding continuity, equipment enclosures, raceways, and grounding requirements affecting utilization equipment.

Wiring Methods: Review raceways, cables, flexible wiring methods, boxes, fittings, support requirements, conductor protection, and equipment connections. Technical familiarity remains important even though 07C limits work on external raceways and conductors.

Electrical Equipment: Study utilization equipment, switches, disconnects, flexible connections, equipment wiring, and other components commonly encountered during nonresidential maintenance.

Motors and HVAC Equipment: Review motors, controllers, overload protection, disconnecting means, HVAC equipment, generators, transformers, and maintenance requirements for motor-driven equipment.

Special Occupancies: Study the NEC requirements applicable to commercial, institutional, assembly, agricultural, and other specialized occupancies included within the examination outline.

Special Equipment: Review specialized equipment requirements and recognize when maintenance work involves equipment or systems subject to additional NEC provisions.

Emergency and Standby Systems: Study emergency systems, legally required standby systems, optional standby systems, transfer equipment, and maintenance considerations.

Special Conditions and Communications: Review interconnected systems, communications systems, and special electrical conditions that may appear in nonresidential facilities.

General Trade Knowledge and Theory: Practice voltage, current, resistance, power, Ohm's law, circuit relationships, basic calculations, equipment troubleshooting, and other general electrical theory concepts.

07C Specialty Limits: Know the key boundaries: 277 volts and 20 amperes for lighting branch circuits, 250 volts and 60 amperes for other circuits, the six-foot supply-whip provision, the eight-foot manufactured-wiring-assembly luminaire relocation provision, and the restriction on circuit-breaker replacement or repair.

07A and 07B Incorporated Work: Review Nonresidential Lighting Maintenance & Lighting Retrofit and Residential Maintenance requirements because Washington includes those scopes within 07C authority.

Experience and Supervision Rules: Review the 1,000-hour examination eligibility point, the 2,000-hour full certification requirement, and the 100 percent supervision requirement before passing the specialty examination.

A useful study routine is to identify the likely source of each practice question before opening a reference. Technical electrical questions generally point toward the NEC, while specialty-scope, experience, supervision, certification, or permit questions are more likely to require RCW Chapter 19.28 or WAC Chapter 296-46B.

How 1 Exam Prep Helps You Reach Your Goal

1 Exam Prep helps Washington Restricted Nonresidential Maintenance Electrician candidates organize preparation around the three core references included in this package: the 2020 National Electrical Code, RCW Chapter 19.28, and WAC Chapter 296-46B.

The package supports trade-focused review of overcurrent protection, grounding and bonding, wiring methods, electrical equipment, motors, HVAC systems, special occupancies, emergency systems, electrical theory, specialty limitations, and Washington electrical requirements.

1 Exam Prep encourages practice-oriented preparation for the open-book examination. Candidates can strengthen reference-navigation skills by identifying the subject of a question, choosing the correct reference, locating the controlling provision, and applying it efficiently.

Experienced maintenance electricians often bring practical troubleshooting and repair knowledge to the examination. Structured preparation helps connect that field experience with the exact NEC and Washington language used to define compliant electrical work.

Washington-specific preparation is especially important for 07C because the specialty includes its own restrictions as well as incorporated work from 07A and 07B. Candidates should understand what is permitted, what is prohibited, and how the different maintenance classifications work together.

The goal is to combine practical nonresidential maintenance experience with organized code study, stronger Washington regulatory knowledge, effective reference navigation, and confidence-building preparation. This Washington Nonresidential Maintenance Restricted Electrician 07C Book Package provides the core references needed to support that study process.

Frequently Asked Questions

What is the official Washington classification for this specialty?

Washington identifies the specialty as 07C Restricted Nonresidential Maintenance.

What books are included in this package?

This package includes RCW Chapter 19.28, WAC Chapter 296-46B, and the 2020 National Electrical Code.

Is the Washington 07C Electrician exam open book?

Yes. Washington electrical examinations are open book under the applicable examination rules.

How many questions are on the 07C Electrician examination?

The examination includes approximately 25 NEC & Theory questions and 17 Washington Codes questions, for approximately 42 questions total.

How much testing time is allowed?

The NEC & Theory section allows approximately 1.5 hours, and the Washington Codes section allows approximately 1 hour.

What score is required to pass?

Washington requires a score of at least 70% on each required examination section.

How much experience is required before taking the 07C examination?

A candidate may become eligible to take the 07C specialty examination after completing at least 1,000 hours of qualifying work experience.

How much experience is required for full 07C certification?

Full 07C Restricted Nonresidential Maintenance Electrician certification requires 2,000 hours of qualifying work experience.

What supervision is required before passing the 07C exam?

A trainee in the 2,000-hour specialty pathway must remain under 100 percent supervision until successfully passing the examination.

What voltage and amperage limits apply to 07C work?

The specialty is limited to 277 volts and 20 amperes for lighting branch circuits and 250 volts and 60 amperes for other circuits.

Can a 07C Electrician repair or replace circuit breakers?

The 07C scope excludes circuit-breaker repair and replacement from the permit-exempt maintenance work authorized for this specialty.

Can a 07C Electrician relocate a luminaire?

Washington allows limited relocation of luminaires in suspended lay-in tile ceilings when the applicable supply-whip or manufactured-wiring-assembly conditions are satisfied.

Can a 07C Electrician perform 07A and 07B work?

Yes. Washington includes the work defined for 07A Nonresidential Lighting Maintenance & Lighting Retrofit and 07B Residential Maintenance within the 07C specialty scope.

Can a 07C Electrician work in classified hazardous locations?

Washington excludes the classified-location work specifically identified in the applicable hazardous-location NEC provisions from the 07C specialty scope.

Can I use the 2020 NEC during the examination?

Yes. The Washington electrical examination program covered by this package permits the 2020 National Electrical Code.

Can I bring RCW 19.28 and WAC 296-46B into the examination?

Yes. Printed copies of both Washington electrical references may be used when prepared according to Labor & Industries testing requirements.

Who administers the Washington 07C Electrician examination?

Washington electrical examinations are administered through PSI after the electrician candidate receives the applicable examination approval from Washington Labor & Industries.

What should I focus on while studying?

Focus on overcurrent protection, grounding and bonding, wiring methods, electrical equipment, motors and HVAC equipment, special occupancies, emergency systems, electrical theory, 07C specialty limitations, incorporated 07A and 07B work, experience requirements, supervision rules, and Washington electrical laws and rules.