Who Can Qualify for the 07E Master Exam?

Washington currently requires a specialty master electrician candidate to have been certified by Labor & Industries in the matching specialty for at least two years.

For Equipment Repair, that means you must already hold the Washington 07E Equipment Repair electrician certificate before applying for the master examination.

The Master Certificate Replaces the Matching 07E Electrician Certificate

When Washington issues a master electrician certificate, it replaces the electrician certificate held for the same certification category.

In other words, you do not keep both a 07E specialty electrician certificate and a 07E specialty master electrician certificate for the same classification.

What Can a 07E Master Electrician Do?

Washington says master electricians can work with the tools of the trade as installers within their certification scope. A master may also act as an administrator for an electrical contractor when properly assigned.

For a 07E master, that can combine hands-on equipment-repair work with contractor-compliance responsibility.

• Perform Equipment Repair electrical work within the 07E scope
• Supervise qualifying work under Washington's certification rules
• Help ensure code compliance
• Help ensure Washington-law and rule compliance
• Understand permits and inspection requirements
• Serve as the designated master/administrator for a matching contractor when properly assigned

What Is the 07E Equipment Repair Scope?

Washington defines Equipment Repair as servicing, maintaining, repairing, or replacing qualifying utilization equipment.

The detailed scope comes from RCW 19.28.095, while WAC 296-46B-920 identifies 07E as the Equipment Repair specialty.

A master electrician should know the scope well enough to make fast field and contractor decisions. Knowing how to do a piece of electrical work is not the same as being licensed to do it under 07E.

How Washington Defines Qualifying Utilization Equipment

Washington's statutory definition of utilization equipment uses several important limits.

• The equipment is self-contained on a single skid or frame
• It is factory built to standardized sizes or types
• It is listed, field evaluated, or otherwise approved under Washington requirements
• It connects as one unit to one electrical power source up to 600 volts
• A separate single source of control power may be used up to 250 volts

Occupant space-heating equipment is excluded from the statutory definition used for this specialty. This is a good example of why the master has to understand the legal definition, not just the machine.

Like-in-Kind Equipment Replacement Is Included

07E allows like-in-kind replacement of qualifying utilization equipment when the same unmodified electrical circuit supplies the replacement.

The key phrase is same unmodified electrical circuit. Replacing the machine can be within the specialty. Modifying the building electrical system to support a different machine can move the project outside it.

A master should help the contractor catch that difference before the job changes from equipment service into general premises wiring.

Internal Electrical Components Can Be Repaired or Replaced

Washington's Equipment Repair scope includes like-in-kind repair or replacement of electrical components inside qualifying utilization equipment.

Depending on the machine, that may include motors, control transformers, overload devices, contactors, relays, switches, internal conductors, sensors, control devices, and related electrical parts.

That equipment focus lines up with the master exam's emphasis on motors, electrical equipment, grounding, bonding, overcurrent protection, wiring methods, and trade theory.

Remote Control Components Have a Limited Allowance

The statutory scope also permits like-in-kind repair or replacement of remote control components that are integral to the operation of the utilization equipment.

The component itself may be within 07E, but installing or modifying interconnecting building wiring can fall outside the specialty.

Master-level scope questions often come down to separating the machine from the premises wiring that serves it.

The Six-Foot Whip Rule

07E permits disconnection, replacement, and reconnection of qualifying low-voltage control and line-voltage supply whips that are no more than six feet long, as long as the characteristics of the branch circuit are not modified.

This is one of the cleanest numerical boundaries in the specialty and worth memorizing.

What Is Outside the 07E Specialty?

Washington excludes several kinds of premises-wiring and distribution work from Equipment Repair. A 07E Master Electrician should be able to recognize these exclusions quickly.

• Installation, repair, or modification of branch-circuit conductors
• Services
• Feeders
• Panelboards
• Disconnect switches
• Motor control centers
• Remote magnetic starters or contactors
• Raceway and conductor systems interconnecting multiple pieces of equipment
• Electrical feeds into power distribution units
• Installation of conduits and raceways
• Plumbing work regulated under Washington plumbing law

Master status increases responsibility. It does not erase the border around the specialty.

Classified-Location Work Is Generally Outside 07E

The statutory scope excludes work governed by the identified hazardous and classified-location NEC articles, including Articles 500, 501, 502, 503, 504, 505, 510, 511, 513, 514, 515, and 516, subject to the statute's sewage-pumping-station exception.

The current master exam still assigns about one question to hazardous locations. That means you need both code knowledge and scope judgment.

Sometimes the correct answer is not only "this is what the NEC requires." It is also "07E does not authorize this contractor to perform that work."

The Current 07E Master Exam at a Glance

Current 07E Master Exam Blueprint

Wiring Methods and General Trade Knowledge & Theory are the largest technical categories at about six questions each. Overcurrent Protection, Grounding & Bonding, and Motors/HVAC/Generators/Transformers are about four questions each.

There Is No Major Load Calculations Section

Washington's General Master exam includes a separate Major Load Calculations section, but the current 07E Equipment Repair Master outline does not.

That does not mean calculations disappear. General Trade Knowledge & Theory can still include electrical math, equipment ratings, and practical theory questions.

The difference is simply that 07E does not have a separate major-load exam section.

Wiring Methods Are About Six Questions

NEC 300-398 is the largest named NEC category on the current 07E Master technical section.

• Raceways and cables
• Boxes and fittings
• Conductor installation
• Support and securing
• Flexible connections
• Wet and damp locations
• Protection from physical damage
• Equipment connections

A master should understand both the installation rule and whether the contractor is allowed to perform the work. That two-part thinking shows up throughout 07E.

General Trade Knowledge and Theory Are About Six Questions

General Trade Knowledge & Theory is also about six questions, making it one of the biggest categories.

• Voltage
• Current
• Resistance
• Power
• Ohm's law
• Series and parallel relationships
• Basic AC theory
• Motor and control principles
• Electrical troubleshooting
• Equipment ratings

Master-level preparation should make basic theory fast enough that you do not spend half the exam trying to negotiate with Ohm's law.

Overcurrent Protection Is About Four Questions

NEC 240 contributes about four questions. Review conductor protection, equipment protection, ratings of overcurrent devices, motor-related protection, and how equipment nameplate information affects protective-device questions.

Keep licensing scope separate from code knowledge. A master may know how an upstream breaker should be sized without the 07E contractor being allowed to modify that upstream branch-circuit equipment.

Grounding and Bonding Are About Four Questions

NEC 250 contributes about four questions. Review equipment-grounding conductors, bonding paths, fault-current paths, grounding connections, metallic frames, and safe equipment reconnection.

A self-contained machine may have a lot of metal and a lot of electrical energy. Good bonding gives fault current a planned route instead of letting it go sightseeing.

Motors, Transformers, and Controls Are About Four Questions

NEC 430-450 contributes about four questions. Equipment Repair work frequently involves motors, overload devices, contactors, relays, control transformers, and machine controls.

• Motor ratings
• Motor overload protection
• Control transformers
• Contactors and relays
• Starter concepts
• Equipment nameplates
• Basic motor calculations
• Control-circuit operation

The Washington Codes Section Has 20 Questions

The master Washington Codes section is larger than the matching Administrator and Electrician sections. It contains about 20 scored questions.

Study:

• Chapter 19.28 RCW
• Chapter 296-46B WAC
• RCW 19.28.095 Equipment Repair scope
• WAC 296-46B-920 specialty scope
• Master electrician qualification
• Contractor licensing
• Master/administrator assignment
• Electrician and trainee certification
• Supervision rules
• Permits and inspections
• Examination rules
• Renewal and continuing education

Twenty Washington-law questions is a major part of the exam, not paperwork seasoning sprinkled on top.

The Exam Is Open Book and Currently Uses the 2020 NEC

PSI currently identifies Washington electrical examinations as open book. Law, rule, and code questions are based on current RCW 19.28, current WAC 296-46B, and the 2020 National Electrical Code.

Qualifying original copyrighted references are allowed. Printed Washington laws and rules may be used in an approved binder format. Permanent index tabs, highlighting, and underlining are allowed before the exam.

Removable notes, Post-It-style tabs, and writing in the references during the exam are prohibited. A silent nonprinting nonprogrammable calculator is allowed.

The Three Core Master References

A practical 07E Master study set starts with:

• 2020 National Electrical Code
• RCW Chapter 19.28
• WAC Chapter 296-46B

The Washington General Master Electrician Book Package contains these same three core Washington master-level references. It is broader than the 07E exam, so use the current Equipment Repair master outline and scope rules to focus your study.

Open-Book Strategy for the Master Exam

The 07E Master exam gives two hours for 34 NEC/Theory questions and one hour for 20 Washington Codes questions. That is workable if you know where to look.

1. Memorize the major 07E scope limits. 600 volts, 250-volt separate control power, six-foot whips, and major premises-wiring exclusions should be familiar.
2. Tab NEC 240 and 250.
3. Tab the 300-series wiring-method articles you use most.
4. Practice motor and control questions without depending on the index for every step.
5. Know RCW 19.28.095 and WAC 296-46B-920.
6. Practice contractor, master-assignment, supervision, permit, and inspection questions.
7. Take full 34-question technical practice sections in two hours.
8. Take 20-question Washington Codes practice sections in one hour.

Apply Through Labor & Industries Before PSI

Master candidates follow a different scheduling path from administrator candidates. First, apply to Washington Labor & Industries for master-exam eligibility.

L&I verifies that you have held the matching specialty electrician certificate for the required two years. After approval, L&I sends the instructions and Exam Unique ID needed to register with PSI.

Washington's rules do not allow out-of-state credit toward qualifying for a master electrician examination.

Current Scheduling and Retest Rules

Approved candidates currently have one year from the approval date to pass all required exam sections.

After a failed attempt, PSI requires a 14-day wait before retesting. After a third failed attempt, later attempts require a three-month wait from the most recent failure.

The required sections for the certificate category are scheduled for the same examination day.

Current Exam and Master Application Fees

PSI's current fee schedule lists $65 for a three-hour examination. The 07E Master exam totals three section-hours.

Washington's current fee schedule lists the Master Electrician exam application, original certificate, and processing fee at $204.60. The current schedule says $44.20 of that application fee is nonrefundable after submission.

Fees can change, so verify the current amount shown by PSI and WAC 296-46B-909 before paying.

Using the Master Certificate as a Contractor Administrator

A master electrician can serve as the designated master/administrator for an electrical contractor when the assignment and contractor scope satisfy Washington requirements.

The assigned master accepts responsibility for helping ensure the contractor complies with applicable Washington electrical laws and rules.

Washington currently charges $53.00 for assignment or unassignment of a master electrician/administrator designation.

L&I also requires master electricians to notify the Department within 10 days of a change in assignment status.

Renewal and Continuing Education

Washington master electrician certificates renew every three years and expire on the certificate holder's birthdate.

Current renewal requires 24 hours of approved continuing education:

• At least 8 hours of code update
• At least 4 hours of RCW/WAC review
• 12 additional hours of approved continuing education

Current master renewal is $175.70 online or $202.20 by mail, fax, or in person.

If the certificate is more than 90 days past expiration, Washington requires reapplication and another master electrical examination to reinstate it.

A Practical 07E Master Study Plan

1. Start with RCW 19.28.095 and WAC 296-46B-920. Learn the Equipment Repair scope and exclusions.
2. Memorize the main numerical limits. 600 volts, 250-volt separate control power, and six-foot whips.
3. Study NEC 300-398 Wiring Methods. It is about six questions.
4. Practice General Trade Knowledge and Theory. It is another six questions.
5. Review NEC 240 Overcurrent Protection.
6. Review NEC 250 Grounding and Bonding.
7. Study motors, controls, and transformers.
8. Study Washington master and contractor rules separately.
9. Take 34-question technical practice sections in two hours.
10. Take 20-question Washington Codes practice sections in one hour.

Study Like an Installer and a Contractor Master

Master-level study should look at each job twice. First, look at the machine as an electrician. Trace incoming power, the equipment connection, internal controls, transformer, motors, overloads, contactors, relays, sensors, grounding, bonding, and the final load.

Then look at the project as the master responsible for compliance. Is the work still inside 07E? Does it require new branch-circuit conductors or conduit? Does it touch a feeder, panelboard, remote starter, motor control center, interconnecting raceway, or classified location? Are the workers properly certified? Are permits and inspections handled correctly?

Review the Washington Equipment Repair Master Electrician 07E collection for specialty-focused preparation.

For a broader Washington master-level reference package containing the 2020 NEC, RCW Chapter 19.28, and WAC Chapter 296-46B, review the Washington General Master Electrician Book Package.

For licensing support, review 1ExamPrep application services. For books, exam expenses, licensing costs, and related professional expenses, review 1ExamPrep financing options.

Frequently Asked Questions

Conclusion

The Washington Equipment Repair Master Electrician 07E certificate is the master-level credential for experienced Equipment Repair specialty electricians. It combines hands-on authority within the 07E scope with the ability to take on master-level contractor responsibility when properly assigned.

The first qualification is straightforward. Washington currently requires a specialty master candidate to have held the matching Washington specialty electrician certificate for at least two years. For this credential, that means two years as a certified 07E Equipment Repair electrician.

Washington also states that out-of-state credit cannot be used toward qualifying for a master electrician examination. Labor & Industries verifies eligibility before the candidate schedules with PSI.

Once the master certificate is issued, it replaces the electrician certificate for the same category. The 07E master can continue working with the tools of the trade inside the specialty and can also act as the designated master/administrator for a matching electrical contractor when properly assigned.

The Equipment Repair scope remains the center of the license. Washington defines qualifying utilization equipment as self-contained on one skid or frame, factory built to standardized sizes or types, appropriately listed or approved, and connected as one unit to a single electrical power source up to 600 volts. A separate single control-power source may be used up to 250 volts.

Occupant space-heating equipment is excluded from the statutory definition. The specialty also allows like-in-kind replacement of qualifying equipment when the same unmodified circuit is used, plus like-in-kind repair or replacement of internal electrical components and certain integral remote-control components.

The six-foot whip rule is one of the most useful field limits. 07E permits disconnection, replacement, and reconnection of qualifying low-voltage control and line-voltage supply whips no longer than six feet when the branch-circuit characteristics are unchanged.

The exclusions are equally important. 07E does not authorize general branch-circuit installation or modification, services, feeders, panelboards, disconnects, motor control centers, remote starters, interconnecting raceway/conductor systems, power-distribution-unit feeds, new conduit systems, or plumbing work. Most classified-location work identified by the statute is also outside the specialty.

The current master exam has two sections. NEC and Theory contains about 34 scored questions and allows two hours. Washington Codes contains about 20 scored questions and allows one hour. The published total is 54 scored questions over three section-hours.

There is no separate Major Load Calculations section for 07E Master Electrician. That is different from Washington's General Master exam. Electrical calculations can still appear inside General Trade Knowledge & Theory, but there is no separate load-calculation block.

The largest technical categories are Wiring Methods and General Trade Knowledge & Theory at about six questions each. Overcurrent Protection, Grounding & Bonding, and Motors/HVAC/Generators/Transformers each contribute about four. Special Conditions adds about two, while several other NEC categories contribute about one or two questions.

The master Washington Codes section is also larger than the 07E Administrator and Electrician versions. Study master qualification, contractor licensing, master/administrator assignment, specialty scope, worker certification, supervision, permits, inspections, examination rules, renewal, and continuing education.

PSI currently identifies the Washington electrical exam as open book and bases questions on the 2020 National Electrical Code, current RCW 19.28, and current WAC 296-46B. Prepare your references before exam day with the permitted permanent tabs, highlighting, and underlining. Do not rely on removable notes or writing in the books during the test.

Apply through Labor & Industries before scheduling. L&I verifies that the two-year specialty requirement has been satisfied and then provides the information needed to register with PSI. Approved candidates currently have one year to pass all required sections.

The current PSI time-based fee schedule lists $65 for a three-hour examination. Washington's current fee schedule lists $204.60 for the Master Electrician exam application, original certificate, and processing fee.

If the master is assigned to an electrical contractor, Washington currently charges $53 for assignment or unassignment of the master/administrator designation. That assignment carries real compliance responsibility.

The master certificate renews every three years on the holder's birthdate. Current renewal requires 24 hours of approved continuing education, including at least 8 hours of code update and 4 hours of RCW/WAC review. Current renewal costs $175.70 online or $202.20 by mail, fax, or in person.

The best 07E Master preparation combines installation knowledge with licensing judgment. Learn the machine, the motors, controls, grounding, bonding, overcurrent protection, wiring methods, and troubleshooting. Then learn exactly where the machine ends and the building electrical system begins. At the master level, knowing where to stop is part of knowing the trade.

Key Takeaways

• Washington 07E Master candidates must have held the matching Washington Equipment Repair electrician certificate for at least 2 years, and out-of-state credit does not qualify a candidate for the master exam.
• The master certificate replaces the matching 07E electrician certificate and can support both hands-on specialty work and contractor administrator responsibility.
• The current exam has about 34 NEC/Theory questions in 2 hours plus 20 Washington Codes questions in 1 hour, for 54 published scored questions.
• The exam is open book and currently uses the 2020 NEC, current RCW 19.28, and current WAC 296-46B, with no separate Major Load Calculations section.
• The current master application fee is $204.60, and master certificates renew every 3 years with 24 hours of continuing education.

Plain-Language Summary

Washington's Equipment Repair Master Electrician 07E certificate is the master-level credential for people who already hold the 07E specialty electrician certificate.

To qualify for the master exam, Washington currently requires you to have held the matching specialty electrician certificate for at least two years.

Out-of-state credit cannot be used to qualify for the Washington master electrician examination. You apply to Labor & Industries first. L&I verifies your eligibility and then gives you the information needed to schedule with PSI.

When the master certificate is issued, it replaces your 07E electrician certificate for the same category.

A 07E Master Electrician can keep doing hands-on Equipment Repair work within the specialty scope. The master can also act as the assigned master/administrator for an electrical contractor when Washington's assignment requirements are met.

The specialty covers qualifying utilization equipment. Washington generally defines that equipment as self-contained on one skid or frame, factory built to standardized sizes or types, and properly listed, evaluated, or approved.

The equipment connects as one unit to one power source up to 600 volts. A separate single control-power source may be up to 250 volts. Occupant space-heating equipment is excluded from this statutory definition.

07E can include like-in-kind replacement of the machine when the same unmodified electrical circuit is used. It can also include like-in-kind repair or replacement of electrical components inside the machine.

Certain remote-control components that are integral to the equipment can also be repaired or replaced. Qualifying control and supply whips up to six feet can be disconnected, replaced, and reconnected when the branch-circuit characteristics stay the same.

The specialty does not allow general premises wiring. It does not authorize installation or modification of branch-circuit conductors, services, feeders, panelboards, disconnects, motor control centers, remote starters, interconnecting raceway systems, power-distribution-unit feeds, or new conduit systems.

The current master exam has two parts. NEC and Theory has about 34 questions and allows two hours. Washington Codes has about 20 questions and allows one hour. That is about 54 scored questions across three section-hours.

There is no separate Major Load Calculations section for 07E Master. The exam is open book and currently uses the 2020 National Electrical Code, current RCW 19.28, and current WAC 296-46B.

The biggest technical exam subjects are Wiring Methods and General Trade Knowledge & Theory at about six questions each. Overcurrent Protection, Grounding & Bonding, and Motors/HVAC/Generators/Transformers are about four questions each.

The Washington Codes section contains about 20 questions. Study master qualification, specialty scope, contractor licensing, master assignment, electrician and trainee certification, supervision, permits, inspections, renewal, and continuing education.

PSI currently lists $65 for a three-hour examination. Washington's current fee schedule lists $204.60 for the master electrician exam application, original certificate, and processing fee.

The master certificate renews every three years on your birthdate. Current renewal requires 24 hours of approved continuing education, including at least 8 hours of code update and 4 hours of RCW/WAC review.

Use the Washington Equipment Repair Master Electrician 07E collection from 1ExamPrep to organize your preparation around 07E scope, the 2020 NEC, Washington law, motors and controls, grounding and bonding, overcurrent protection, wiring methods, electrical theory, and master-level contractor compliance.