Washington Appliance Repair Master Electrician 07D Book Package

Prepare for the Washington Appliance Repair Master Electrician examination with a focused reference package built around the electrical code, Washington electrical law, and state administrative rules used for the 07D Appliance Repair 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 officially identifies this specialty as 07D Appliance Repair. The classification covers servicing, maintaining, repairing, and replacing household appliances, small commercial or industrial appliances, and other qualifying small electrical utilization equipment. The equipment must be self-contained, built to standardized sizes or types, and connected as a single unit to a single source of electrical power within the electrical limits established by Washington rules.

The Washington 07D Master Electrician examination combines National Electrical Code knowledge, general electrical theory, and Washington electrical laws and rules. Candidates should be prepared for technical questions involving overcurrent protection, grounding and bonding, wiring methods, electrical equipment, motors and related equipment, special conditions, and general trade theory. The Washington Codes portion also tests the legal scope of appliance-repair work and the requirements that apply to Master Electricians and electrical contractors.

Washington electrical examinations are open book. Approved references may be brought into the testing center, making efficient reference navigation an important part of preparation. Candidates should become comfortable determining whether a question is controlled by the NEC, RCW Chapter 19.28, or WAC Chapter 296-46B and then locating the applicable provision without unnecessary searching.

The 07D specialty has clearly defined limits. Qualifying appliances and electrical utilization equipment are limited to a maximum of 250 volts, 60 amperes, and single phase. The specialty allows specific repair, replacement, supply-whip, and outlet-conversion work but does not authorize unrestricted branch-circuit, service, feeder, panelboard, disconnect-switch, raceway, or conductor-system installation.

This package brings together 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, certification, examination, contractor, permit, inspection, and scope-of-work requirements that apply to Washington electrical work.

What You Get

• Revised Code of Washington (RCW) Chapter 19.28
  Washington electrical law covering electricians, Master Electricians, electrical 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, contractor, permit, inspection, supervision, and installation rules. This reference defines the 07D Appliance Repair specialty and its authorized work.
• 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, related equipment, and special electrical conditions.

Exam Details

The Washington 07D Appliance Repair Master Electrician examination contains two required sections: NEC & Theory and Washington Codes.

• NEC & Theory: Approximately 30 questions
• Time Allowed for NEC & Theory: 2 hours
• Washington Codes: Approximately 20 questions
• Time Allowed for Washington Codes: 1 hour
• Total Questions: Approximately 50 questions across both sections
• Total Testing Time: Approximately 3 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 published NEC & Theory outline includes approximately two questions from NEC Article 90, three from NEC Articles 100 through 110, three involving overcurrent protection, three involving grounding and bonding, two involving wiring methods, six involving electrical equipment, two involving motors, HVAC equipment, generators and transformers, two involving special conditions, and approximately seven questions involving general trade knowledge and electrical theory.

The Washington Codes section contains approximately 20 questions involving Washington electrical laws and administrative rules. Candidates should prepare for Master Electrician eligibility, certification, contractor responsibilities, specialty scope, examinations, permits, inspections, and the specific limitations that apply to 07D Appliance Repair work.

Open Book Test

The Washington Appliance Repair Master 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 brought into the examination. Printed Washington electrical laws and rules should be hole-punched and placed in a three-ring binder.

Because the NEC & Theory section provides approximately two hours for 30 questions, candidates should practice locating common technical requirements efficiently. Electrical equipment, grounding and bonding, overcurrent protection, wiring methods, motors, and theory deserve focused preparation.

The Washington Codes section also requires familiarity with the state references. Candidates should know where to locate the 07D specialty definition, voltage and amperage limits, supply-whip provisions, outlet-conversion rules, prohibited work, Master Electrician eligibility, and contractor responsibilities.

Licensing Steps

Washington Appliance Repair Master Electrician certification is administered through the Washington State Department of Labor & Industries. A specialty Master Electrician candidate must first hold the corresponding Washington specialty electrician certificate.

1. Obtain the 07D Appliance Repair Electrician certificate. The specialty Master Electrician pathway begins with certification in the corresponding specialty.
2. Hold the 07D specialty certificate for at least two years. Washington requires specialty Master Electrician applicants to have been certified by Labor & Industries in the applicable specialty for at least two years.
3. Apply for the Master Electrician examination. Submit the required Master Electrician examination application through Washington Labor & Industries.
4. Receive examination approval. L&I reviews the application and verifies that the candidate satisfies the qualification requirements.
5. Prepare for NEC & Theory. Study the 2020 NEC with particular attention to electrical equipment, grounding and bonding, overcurrent protection, wiring methods, motors, special conditions, and electrical theory.
6. Prepare for Washington Codes. Review RCW Chapter 19.28 and WAC Chapter 296-46B, including the 07D specialty scope and Master Electrician responsibilities.
7. Schedule the examination through PSI. Use the eligibility instructions provided after L&I approval.
8. Take both required examination sections. Complete NEC & Theory and Washington Codes.
9. Pass each required section. Washington requires a score of at least 70% on each examination section.
10. Complete the certification process. Follow Washington Labor & Industries procedures for issuance of the 07D Appliance Repair Master Electrician certificate.

State Requirements

Washington identifies Appliance Repair as electrical specialty classification 07D. To qualify for the specialty Master Electrician examination, an applicant must have held the corresponding Washington specialty electrician certificate for at least two years.

The underlying 07D Appliance Repair Electrician pathway requires 2,000 hours of qualifying work experience for full certification. A trainee may become eligible for the 07D specialty electrician examination after completing at least 720 hours of qualifying work experience.

Until the appropriate specialty examination is successfully completed, a trainee must work under 100 percent supervision by an electrician certified to perform the work or by a general journey level electrician.

The 07D specialty covers servicing, maintaining, repairing, or replacing household appliances, small commercial or industrial appliances, and other small electrical utilization equipment.

For purposes of the specialty, the appliance or electrical utilization equipment must be self-contained and built to standardized sizes or types. The equipment must be connected as a single unit to a single source of electrical power limited to a maximum of 250 volts, 60 amperes, and single phase.

Qualifying equipment can include ovens, office equipment, vehicle-repair equipment, commercial kitchen equipment, self-contained hot tubs and spas, grinders, scales, and other equipment meeting Washington's definition.

The specialty does not include alarm systems, energy-management systems, similar integrated systems, luminaires, furnaces, heaters, air conditioners, heat pumps, sewage-disposal equipment, door or gate systems, or individual components installed together to create a broader system.

The 07D specialty allows in-place like-in-kind replacement of qualifying appliances or equipment when the same unmodified electrical circuit is used to supply the replacement. It also permits like-in-kind replacement of electrical components located within the appliance or equipment.

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

Washington also permits the 07D specialty to install an outlet box and outlet at an existing appliance or equipment location when converting the appliance from a permanent electrical connection to a plug-and-cord connection. Apart from installing that outlet box and outlet, the existing branch circuit supplying the appliance or equipment cannot be modified.

The 07D specialty does not authorize installation, repair, or modification of branch-circuit conductors, services, feeders, panelboards, disconnect switches, or raceway and conductor systems interconnecting multiple appliances, equipment, or electrical components.

The specialty also excludes electrical work governed by the hazardous-location NEC provisions identified by Washington rules. In addition, the 07D specialty does not authorize plumbing work regulated under Washington plumbing law.

A specialty Master Electrician may work with the tools of the electrical trade within the scope of the certification and may serve as the designated master for an electrical contractor when the applicable contractor and assignment requirements are satisfied.

When assigned to an electrical contractor, a Master Electrician accepts responsibility for helping ensure that the contractor complies with Washington electrical laws and rules and remains within the scope of its electrical license.

Reference Books

• Revised Code of Washington (RCW) Chapter 19.28
  This reference contains Washington electrical statutes governing electricians, Master Electricians, contractors, certification, installations, enforcement, and related legal responsibilities within the state's electrical licensing system.
• Washington Administrative Code (WAC) Chapter 296-46B
  This reference contains Washington rules governing specialty classifications, work experience, supervision, examinations, Master Electrician certification, contractors, permits, inspections, and the detailed scope of 07D Appliance Repair work.
• National Electrical Code, NEC, 2020 Edition
  The NEC provides technical requirements for overcurrent protection, grounding and bonding, wiring methods, electrical equipment, motors, related electrical equipment, special conditions, and other subjects included in the 07D examination.

Candidates should study all three references as a coordinated set. Technical equipment questions may require the NEC, while questions involving specialty authority, certification, contractor responsibilities, or the legal boundaries of Appliance Repair work may require RCW Chapter 19.28 or WAC Chapter 296-46B.

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 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 testing when prepared according to Labor & Industries examination requirements.
• Washington Administrative Code (WAC) Chapter 296-46B
  Printed copies of Washington electrical rules may be used during the examination when prepared according to the applicable testing requirements.

Preparing with the same references used during testing can help candidates become familiar with code organization, article numbers, definitions, tables, specialty provisions, and frequently referenced Washington rules.

Test Information and Study Materials

Electrical Equipment: Electrical equipment is the largest technical category on the 07D Master examination outline. Review utilization equipment, appliances, flexible cords and cables, equipment connections, switches, receptacles, transformers, and other requirements associated with qualifying appliances and small electrical equipment.

Overcurrent Protection: Study breakers, fuses, equipment ratings, conductor protection, branch-circuit protection, and the relationship between the existing branch circuit and replacement appliances or utilization equipment.

Grounding and Bonding: Review equipment grounding conductors, bonding, grounding continuity, enclosures, flexible connections, and grounding requirements affecting appliances and electrical utilization equipment.

Wiring Methods: Study cables, flexible cords, raceways, boxes, fittings, conductor protection, and equipment connections. The 07D scope limits modification of branch-circuit conductors and raceway systems, making the distinction between equipment work and building wiring especially important.

Motors and Related Equipment: Many appliances contain motors or other electrically operated components. Review motor principles, overload protection, controllers, and electrical requirements applicable to equipment containing motors.

Special Conditions: Review NEC provisions involving interconnected power systems and other special electrical conditions identified in the examination outline.

General Trade Knowledge and Theory: Practice voltage, current, resistance, power, Ohm's law, series and parallel circuits, equipment troubleshooting, basic calculations, and electrical principles commonly encountered in appliance service work.

07D Specialty Limits: Know the 250-volt, 60-ampere, single-phase limitation, the six-foot supply-whip provision, the like-in-kind replacement rules, and the requirements for converting an existing permanent connection to an outlet and plug-and-cord connection.

Excluded Work: Understand that the specialty does not authorize unrestricted branch-circuit work, services, feeders, panelboards, disconnect switches, interconnecting raceways and conductors, classified-location work, or plumbing work.

Washington Master Electrician Rules: Review Master Electrician eligibility, contractor assignment requirements, certification, examinations, permits, inspections, and the responsibility associated with serving as the designated master for an electrical contractor.

A practical study method is to decide which reference most likely contains the answer before beginning a lookup. Technical questions involving equipment or grounding generally point toward the NEC, while questions involving appliance scope, certification, contractor authority, or prohibited work are more likely to require the RCW or WAC.

How 1 Exam Prep Helps You Reach Your Goal

1 Exam Prep helps Washington Appliance Repair Master 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 electrical equipment, grounding and bonding, overcurrent protection, wiring methods, motors, electrical theory, Appliance Repair specialty limitations, and Washington electrical laws and rules.

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

Experienced appliance-repair electricians often bring strong practical troubleshooting and service knowledge to the examination. Structured preparation helps connect that field experience with the exact NEC and Washington rules that govern the work.

Washington-specific preparation is particularly important for 07D because the specialty clearly defines which appliances and equipment qualify, the maximum electrical ratings allowed, the extent of supply-whip and outlet work permitted, and the types of electrical work that remain outside the certification.

The goal is to combine appliance-service experience with organized code study, stronger Washington regulatory knowledge, efficient reference navigation, and confidence-building preparation. This Washington Appliance Repair Master Electrician 07D Book Package provides the core materials needed to support that study process.

Frequently Asked Questions

What is the official Washington classification for Appliance Repair?

Washington identifies Appliance Repair as electrical specialty classification 07D.

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 07D Master Electrician exam open book?

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

How many questions are on the 07D Master Electrician examination?

The published examination outline lists approximately 30 NEC & Theory questions and 20 Washington Codes questions, for approximately 50 questions total.

How much testing time is allowed?

The NEC & Theory section allows approximately 2 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 long must I hold the 07D Electrician certificate before taking the Master exam?

A specialty Master Electrician applicant must have held the corresponding Washington specialty electrician certificate for at least two years.

How much experience is required for full 07D Electrician certification?

Full Washington 07D Appliance Repair Electrician certification requires 2,000 hours of qualifying work experience.

When can a 07D trainee become eligible for the specialty examination?

A trainee may become eligible for the 07D specialty examination after completing at least 720 hours of qualifying work experience.

What supervision applies before passing the 07D exam?

A trainee must remain under 100 percent supervision until the applicable specialty examination is successfully completed.

What electrical limits apply to the 07D specialty?

Qualifying appliances and electrical utilization equipment are limited to a maximum of 250 volts, 60 amperes, and single phase.

What types of equipment can fall under 07D Appliance Repair?

Qualifying equipment can include household appliances, small commercial or industrial appliances, ovens, office equipment, vehicle-repair equipment, commercial kitchen equipment, self-contained hot tubs and spas, grinders, scales, and other qualifying self-contained utilization equipment.

Can a 07D Electrician replace an appliance?

Yes. Washington permits in-place like-in-kind replacement when the same unmodified electrical circuit is used to supply the replacement appliance or equipment.

Can a 07D Electrician reconnect a supply whip?

Yes. The specialty may disconnect and reconnect qualifying low-voltage control and line-voltage supply whips not exceeding six feet in length when branch-circuit characteristics are not modified.

Can a 07D Electrician convert a hard-wired appliance to a plug connection?

Washington permits installation of an outlet box and outlet at the existing appliance or equipment location when converting from a permanent connection to a plug-and-cord connection, provided the existing branch circuit is otherwise not modified.

Can a 07D Electrician install new branch circuits or feeders?

No. The specialty does not authorize installation, repair, or modification of branch-circuit conductors, services, feeders, panelboards, disconnect switches, or interconnecting raceway and conductor systems.

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 07D Master Electrician examination?

Washington electrical examinations are administered through PSI after the applicable eligibility review and examination approval through Washington Labor & Industries.

What should I focus on while studying?

Focus on electrical equipment, overcurrent protection, grounding and bonding, wiring methods, motors, special conditions, electrical theory, 07D specialty limits, Master Electrician responsibilities, and Washington electrical laws and rules.