What Is Washington Specialty 07?

Washington defines Nonresidential Maintenance 07 as maintenance, repair, and replacement of like-in-kind existing electrical equipment and conductors. The word existing is important. The classification is built around maintaining systems already in service.

The full 07 specialty is broader than restricted 07C because it can work with existing electrical conductors as part of qualifying maintenance. It can also perform several related maintenance specialties by rule.

4,000 Hours, 75% Supervision, and 48 Classroom Hours

Unlike the 2,000-hour maintenance specialties, full 07 does not have a 720-hour or 1,000-hour early-exam path.

What Work Does Full 07 Cover?

The specialty is limited to maintenance, repair, and like-in-kind replacement of existing electrical equipment and conductors. That can include a wide range of commercial and industrial maintenance work.

• Existing branch-circuit conductors when the task is qualifying maintenance
• Existing utilization equipment
• Motors, starters, relays, contactors, and motor controls
• Transformers and related equipment
• Lighting equipment and controls
• Overcurrent and overload protection where allowed
• Special equipment and standby-system components

Temporary Load Testing Up to 600 Volts

Washington expressly allows full 07 to install and connect temporary conductors and equipment for the purpose of load testing, up to 600 volts.

This is useful for diagnostic work, commissioning, troubleshooting, and controlled maintenance testing. The rule is tied to the load-testing purpose, so it should not be treated as a general temporary-power license.

Lower-Amp Replacement Equipment Rule

When replacement equipment has a lower ampere rating than the equipment being replaced and the ampacity of the existing conductors is not modified, full 07 may replace overcurrent or overload protection with a lower-rated device that matches the new equipment nameplate.

The protective device still has to comply with the NEC and the equipment nameplate. This is a maintenance accommodation, not permission to redesign conductor ampacity.

07 Can Perform 07A Through 07E Work

Washington expressly allows full 07 to perform the work defined for:

• 07A Nonresidential Lighting Maintenance and Lighting Retrofit
• 07B Residential Maintenance
• 07C Restricted Nonresidential Maintenance
• 07D Appliance Repair
• 07E Equipment Repair

This matters on the exam. PSI warns that candidates may be tested on another specialty when Washington law allows their classification to perform that work.

07A, 07B, 07C, 07D, and 07E Crossover Basics

07A adds lighting-maintenance and retrofit concepts inside existing nonresidential luminaires. 07B adds residential maintenance within its occupancy and 250-volt, 60-amp, single-phase limits. 07C adds restricted nonresidential maintenance concepts, including its narrower voltage and amperage limits.

07D adds qualifying appliance repair, while 07E adds equipment repair under its statutory scope. Full 07 candidates should know the key boundaries of each because the full certificate may perform all five specialties.

Residential Work and Experience Credit

Washington specifically states that maintenance activity performed under 07 in residential dwellings does not count as training experience toward qualification for the 02 Residential specialty electrician examination.

This is an experience-credit rule, so keep long-term certification goals in mind when documenting your hours.

Document Your 4,000 Hours Carefully

Labor & Industries relies on experience records and affidavits when reviewing eligibility. Keep accurate records showing employer, dates, hours, classification, supervising electrician, and the maintenance work performed.

For application support, review 1ExamPrep application services.

Current 07 Electrician Exam at a Glance

Current 07 Electrician Exam Blueprint

Wiring Methods and General Trade Knowledge & Theory are the largest areas at about five questions each. Grounding & Bonding follows at about four.

Technical Areas to Prioritize

Wiring Methods: boxes, fittings, raceways, cable systems, conductor protection, wet locations, flexible wiring methods, and physical damage.

Grounding & Bonding: equipment-grounding conductors, bonding, fault-current paths, grounding connections, and metal enclosures.

Services and Overcurrent Protection: service equipment, disconnecting concepts, conductor protection, fuses, breakers, and replacement-equipment protective-device ratings.

Special Equipment and Equipment Over 600 Volts: learn the NEC structure well enough to navigate quickly during the exam.

The Washington Codes Section Has 17 Questions

Treat state law as its own study subject.

• RCW 19.28
• WAC 296-46B
• WAC 296-46B-920 specialty scope and crossover
• WAC 296-46B-945 experience requirements
• Trainee supervision and classroom education
• Permits and inspections
• Electrician certification and contractor rules
• Renewal and continuing education

The Current Exam Is Open Book

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

Permanent tabs, highlighting, and underlining are allowed under current rules. Removable tabs, sticky notes, and writing in references during the exam are not allowed. Printed RCW/WAC materials may be used in the accepted binder format.

Exam NEC vs. Current Field NEC

Washington currently uses the 2023 NEC for field installations and inspections, while the current licensing-exam bulletin still uses the 2020 NEC.

L&I states that the 2026 NEC is scheduled to replace the current 2023 field edition on December 31, 2026.

Study References and 1ExamPrep Resources

A practical study set begins with the 2020 NEC, RCW 19.28, and WAC 296-46B. The Washington General Electrician Book Package contains those broader core references.

Use the Washington Nonresidential Maintenance Electrician collection for specialty-focused preparation. For financing, see 1ExamPrep financing.

Application, Exam Fee, and Certificate Fee

Electrician candidates first qualify through Washington Labor & Industries. L&I reviews experience and classroom requirements before approving exam scheduling with PSI.

The current three-hour PSI electrical exam fee is $65. Washington's current specialty electrician application, including the original certificate and processing fee, is $114.60.

Renewal and Continuing Education

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

Current specialty electrician renewal is $92.60 online or $106.40 by mail, fax, or in person.

A normal three-year renewal period requires 24 hours of approved continuing education, including at least 8 hours of code update and 4 hours of RCW/WAC education.

Do not confuse renewal CE with the 48 hours of basic classroom instruction required during the initial 4,000-hour training path.

A Practical 07 Study Plan

1. Learn WAC 296-46B-920 full 07 scope first.
2. Memorize the 600-volt temporary load-testing rule.
3. Learn the lower-rated replacement-equipment protective-device rule.
4. Study 07A through 07E crossover work.
5. Prioritize NEC 300-398 Wiring Methods.
6. Prioritize NEC 250 Grounding & Bonding.
7. Review Services and Overcurrent Protection.
8. Review Special Equipment and Equipment Over 600 Volts.
9. Practice General Trade Knowledge & Theory.
10. Take full timed 40-question technical and 17-question Washington Codes practice sections.

Frequently Asked Questions

Conclusion

Washington's Nonresidential Maintenance Electrician 07 certificate is the full maintenance specialty for electricians who work on existing nonresidential electrical equipment and conductors. It is broader than 07C, but it remains centered on maintenance, repair, and like-in-kind replacement instead of new general electrical construction.

Washington currently requires 4,000 qualifying hours before examination eligibility and certification. Trainees in this 4,000-hour specialty are supervised at least 75 percent of the time, and the training path requires 48 hours of approved basic classroom instruction before renewal or exam qualification.

Full 07 includes temporary load-testing authority up to 600 volts and a special rule for properly downsizing overcurrent or overload protection when replacement equipment has a lower ampere rating and the existing conductor ampacity is unchanged.

It also carries broad crossover authority into 07A, 07B, 07C, 07D, and 07E. PSI warns that specialty examinations can test work from other specialties when Washington law allows the candidate's classification to perform that work.

The current 07 Electrician exam contains about 40 NEC and Theory questions in two hours plus 17 Washington Codes questions in one hour, for 57 published scored questions. Wiring Methods and General Trade Knowledge & Theory are the largest areas at about five questions each.

The technical outline is broad enough to include services, overcurrent protection, grounding and bonding, electrical equipment, motors and transformers, equipment over 600 volts, hazardous locations, special occupancies, special equipment, emergency and standby systems, special conditions, and communications systems.

The exam is open book and currently uses the 2020 NEC, current RCW 19.28, and current WAC 296-46B. Washington field work currently uses the 2023 NEC, so candidates should keep field-code requirements separate from current testing references.

The current PSI fee for a three-hour electrical exam is $65. Washington currently lists $114.60 for the specialty electrician application including the original certificate and processing fee.

Once certified, the electrician renews every three years on the holder's birthdate. Current specialty renewal is $92.60 online or $106.40 by mail, fax, or in person. A normal renewal period requires 24 hours of approved continuing education, including eight hours of code update and four hours of RCW/WAC education.

The best preparation combines broad maintenance knowledge with licensing judgment. Learn the system, learn the code, learn the crossover specialties, and learn where maintenance ends and new construction begins.

Key Takeaways

• Full Washington 07 requires 4,000 qualifying hours for both exam eligibility and certification, at least 75% supervision during training, and 48 hours of basic classroom instruction.
• The specialty covers maintenance, repair, and like-in-kind replacement of existing nonresidential electrical equipment and conductors, plus temporary load testing up to 600 volts.
• Full 07 may perform 07A, 07B, 07C, 07D, and 07E work, so crossover specialty knowledge belongs in the study plan.
• The current exam has 40 NEC/Theory questions in 2 hours plus 17 Washington Codes questions in 1 hour, for 57 published scored questions.
• The current exam is open book and uses the 2020 NEC plus current RCW 19.28 and WAC 296-46B, while Washington field work currently uses the 2023 NEC.

Plain-Language Summary

Washington's Nonresidential Maintenance Electrician 07 certificate is for electricians who maintain, repair, and replace existing electrical equipment and conductors in nonresidential buildings.

It is broader than Restricted Nonresidential Maintenance 07C, but it is still a maintenance specialty rather than a general new-construction license.

You currently need 4,000 qualifying work hours before you can take the 07 exam. The same 4,000 hours satisfy the experience requirement for certification.

Trainees in this specialty must be supervised at least 75 percent of the time and complete 48 hours of approved basic classroom instruction before renewal or exam qualification.

Full 07 can install temporary conductors and equipment for load testing up to 600 volts. It also has a special rule for lower-rated replacement equipment that can allow lower-rated overcurrent or overload devices when existing conductor ampacity is not changed.

Washington lets full 07 perform work defined for 07A lighting maintenance, 07B residential maintenance, 07C restricted nonresidential maintenance, 07D appliance repair, and 07E equipment repair.

The current exam has 40 NEC and Theory questions in two hours plus 17 Washington Codes questions in one hour, for 57 published scored questions.

Wiring Methods and General Trade Knowledge & Theory are the largest categories at about five questions each. Grounding & Bonding is about four. Services, Overcurrent Protection, and Special Equipment are about three each.

The exam is open book and currently uses the 2020 National Electrical Code, current RCW 19.28, and current WAC 296-46B. Washington field work currently uses the 2023 NEC.

PSI currently lists $65 for the three-hour examination. Washington currently lists $114.60 for the specialty electrician application including the original certificate and processing fee.

The 07 certificate renews every three years on your birthdate. Current renewal is $92.60 online or $106.40 by mail, fax, or in person. A normal renewal period requires 24 hours of approved continuing education.

Use the Washington Nonresidential Maintenance Electrician collection from 1ExamPrep to organize your preparation around full 07 scope, crossover specialties, broad NEC navigation, Washington laws and rules, and open-book exam strategy.