What Is Washington Specialty 07C?

Washington identifies 07C as Restricted Nonresidential Maintenance. The specialty may maintain, repair, or replace like-in-kind existing electrical utilization equipment. It may also perform permit-exempt work identified in WAC 296-46B-901, except for the replacement or repair of circuit breakers.

The word restricted matters. This is not the same as the broader 07 Nonresidential Maintenance classification, which has a 4,000-hour experience requirement and a wider maintenance scope.

The Main 07C Electrical Limits

Washington places different limits on lighting circuits and other circuits within 07C.

07C Can Maintain, Repair, or Replace Existing Utilization Equipment

The heart of 07C is existing utilization equipment. The specialty can maintain, repair, or replace equipment like in kind when the work stays within the voltage, amperage, and scope limits.

Utilization equipment can include many kinds of nonresidential electrical loads. The important questions are whether the equipment already exists, whether the replacement is like in kind, whether the circuit stays within 07C limits, and whether the work is actually equipment maintenance rather than new premises wiring.

For 07C, "electrical equipment" does not include external electrical conductors, raceway, or conduit systems outside the equipment or whip. That boundary matters on both the exam and the job.

Circuit Breaker Replacement and Repair Are Excluded

WAC 296-46B-901 identifies some circuit-breaker replacement as permit-exempt basic work, but 07C specifically removes that item from its specialty scope.

In plain language, a 07C electrician should not treat a permit exemption as automatic authority to repair or replace a circuit breaker. The specialty rule expressly says no.

Lighting Work Has Special Rules

07C permits lighting maintenance within its limits, but luminaire replacement is not a general remodel allowance.

Replacement of a luminaire is limited to in-place replacement required because the existing luminaire failed to operate.

A luminaire installed in a suspended lay-in tile ceiling can be relocated in limited situations:

• The original field-installed luminaire supply whip is not extended or relocated to a new supply point; or
• If a manufactured wiring assembly supplies the luminaire, the luminaire may be relocated no more than eight feet, provided the manufactured wiring assembly circuiting is not changed.

That is maintenance flexibility, not permission to redesign the lighting layout from scratch.

The Six-Foot Whip Rule

07C may disconnect and reconnect low-voltage control and line-voltage supply whips not over six feet in length, provided the branch-circuit characteristics are not modified.

The whip rule is important because it separates equipment maintenance from premises wiring. The electrician can service the equipment connection without automatically gaining authority to modify branch-circuit conductors, raceways, or supply points outside the permitted scope.

07C Can Also Perform 07A and 07B Work

Washington specifically allows 07C to perform the work defined for:

• 07A Nonresidential Lighting Maintenance and Lighting Retrofit
• 07B Residential Maintenance

This scope crossover is important for exam preparation. PSI's bulletin warns that some specialty exams can test work from other specialties when Washington law allows crossover.

That means 07C candidates should understand the 07A lighting-maintenance rules and the 07B residential-maintenance rules, not just the 07C paragraph in WAC 296-46B-920.

What 07A Crossover Work Adds

07A covers nonresidential lighting maintenance and lighting retrofit work within the housing of existing luminaires. It includes work such as repair, service, maintenance, ballast replacement, socket replacement, and approved retrofit work.

The 07A scope does not include installing new luminaires or branch circuits, moving or relocating ordinary existing luminaires, or altering existing branch circuits.

Because 07C can perform 07A work, these lighting-maintenance rules belong in your 07C study plan.

What 07B Crossover Work Adds

07B Residential Maintenance covers qualifying maintenance, repair, and like-in-kind replacement work in residential dwellings and certain dwelling-unit areas in multistory structures.

The 07B scope is limited to equipment and circuits up to 250 volts, 60 amperes, single phase, and it includes its own six-foot whip rule.

Because 07C can perform 07B work, a 07C candidate may encounter exam questions that look more residential than nonresidential. That is not a trick. It follows the Washington crossover rule.

Classified-Location Work Is Outside 07C

Washington prohibits 07C work governed by NEC Articles 500, 501, 502, 503, 504, 505, 510, 511, 513, 514, 515, and 516.

Those articles cover classified or hazardous locations and related occupancies. The current PSI outline still gives 07C Electrician candidates about one hazardous-locations question, so you need enough code knowledge to recognize the rule and enough licensing knowledge to know the specialty cannot perform the work.

Plumbing Work Is Outside 07C

Washington also states that 07C cannot perform plumbing work regulated under Chapter 18.106 RCW.

Maintenance work often happens around mechanical equipment, pumps, appliances, and other systems where electrical and plumbing components sit close together. The 07C certificate covers the allowed electrical work only.

If the repair crosses into regulated plumbing, a plumbing credential or appropriately licensed trade professional is required.

07C Requires 1,000 Hours Before Exam Eligibility

Washington's current specialty experience table identifies 07C as a 2,000-hour specialty with 1,000 qualifying supervised hours required before examination eligibility.

Until the exam is passed, the trainee must work under 100 percent supervision by an electrician authorized to supervise the specialty.

What Happens After You Pass at 1,000 Hours?

After passing the 07C specialty examination, Washington can issue a nonrenewable zero-percent-supervision modified training certificate.

That certificate allows the trainee to work without supervision in the 07C specialty while completing the remaining hours needed for full 2,000-hour certification.

Before the modified certificate expires, the trainee must finish the required work experience and complete the required 24 hours of approved electrical basic trainee classes for the 2,000-hour specialty pathway.

Document Your Hours Carefully

Labor & Industries reviews experience records and affidavits to determine examination eligibility and final certification. Keep clean records showing employer, dates, specialty classification, supervising electrician, work performed, and hours.

Washington limits how training-school credit can be used, and the initial supervised hours needed for exam eligibility cannot simply be replaced by classroom credit.

Because 07C is a 2,000-hour specialty, those hours generally do not become a shortcut into the 4,000-hour specialty certifications or the 01 General Journey Level pathway.

For help with licensing paperwork, review 1ExamPrep application services.

The Current 07C Electrician Exam at a Glance

Current 07C Electrician Exam Blueprint

Overcurrent Protection and General Trade Knowledge & Theory are the largest individual categories at about three questions each. Several other NEC areas contribute about two questions apiece.

Overcurrent Protection Is About Three Questions

NEC 240 contributes about three questions on the current 07C Electrician technical outline.

That category deserves attention even though 07C cannot repair or replace circuit breakers. The electrician still needs to understand overcurrent protection, conductor protection, equipment protection, fuse concepts, and how overcurrent devices relate to the equipment being maintained.

This is a great example of the difference between knowing the code and having authority to perform a particular task.

General Trade Knowledge and Theory Are About Three Questions

Maintenance electricians troubleshoot real equipment, so electrical theory matters. The current outline assigns about three questions to General Trade Knowledge & Theory.

• Voltage
• Current
• Resistance
• Power
• Ohm's law
• Basic AC theory
• Series and parallel concepts
• Basic troubleshooting
• Equipment ratings
• Electrical measurements

The open book can tell you a rule. It is less helpful when the question wants you to understand why the motor will not start.

General Requirements, Wiring & Protection, Grounding, Wiring Methods, and Equipment Matter

Several technical categories contribute about two questions each. That creates a broad maintenance exam where basic competence across many NEC areas matters more than memorizing one chapter.

• NEC 100-110 General Requirements
• NEC 200-225 and 280-285 Wiring & Protection
• NEC 250 Grounding & Bonding
• NEC 300-398 Wiring Methods
• NEC 400-427 and 455-480 Electrical Equipment
• NEC 600-695 Special Equipment
• NEC 700-702 Emergency & Standby Systems

A restricted maintenance electrician may encounter many kinds of existing electrical equipment. The exam reflects that variety.

Hazardous Locations Are Tested Even Though 07C Cannot Work There

The current outline gives about one question to NEC 500-516 Hazardous Locations.

Washington's scope rule says 07C cannot perform work governed by the listed classified-location articles. You still need enough code knowledge to identify the type of location and understand why the work is outside the specialty.

On a real job, recognizing that limit early is more valuable than discovering it after you have already opened the equipment.

Emergency and Standby Systems Are About Two Questions

NEC 700-702 contributes about two questions in the current 07C outline. Maintenance technicians may work around buildings with emergency, legally required standby, or optional standby systems.

Study the basic purpose and organization of those systems, equipment requirements, transfer concepts, and how maintenance work may interact with circuits that serve critical or standby loads.

The Washington Codes Section Has 17 Questions

The Washington Codes section contains 17 questions and gives candidates one hour. For 07C, this is where scope, experience, supervision, permit rules, and specialty crossover become especially important.

Study:

• Chapter 19.28 RCW
• Chapter 296-46B WAC
• WAC 296-46B-920 specialty scope
• WAC 296-46B-901 permit-exempt work
• WAC 296-46B-945 experience requirements
• 07A and 07B crossover work
• 100 percent trainee supervision before exam passage
• Modified training certificates
• Permits and inspections
• Electrician and contractor certification rules
• Renewal and continuing education

The Current Exam Is Open Book

Washington's current electrical examination instructions identify the exams as open book. The current exam reference set uses the 2020 National Electrical Code, current Chapter 19.28 RCW, and current Chapter 296-46B WAC.

Original copyrighted materials may contain highlighting, underlining, and permanent index tabs. Removable tabs, sticky notes, and handwritten notes are not allowed. Printed RCW and WAC materials should be prepared in the permitted binder format.

A silent nonprinting nonprogrammable calculator is permitted under the current exam rules.

Exam NEC vs. Current Field NEC

Washington currently inspects electrical installations using the 2023 NEC, while the current electrician examination instructions still tell candidates to use the 2020 NEC for the licensing exam.

Keep those two code-edition questions separate:

• Exam preparation: follow the current PSI and L&I testing instructions.
• Field work: follow the NEC edition and Washington amendments currently adopted for installations and inspections.

Open-Book Strategy for a Three-Hour Exam

The 07C Electrician exam gives two hours for 24 NEC/Theory questions and one hour for 17 Washington Codes questions. That is a reasonable pace if you know your references.

1. Memorize the 07C numerical limits. Know 277 V/20 A for lighting, 250 V/60 A for other circuits, six-foot whips, and the eight-foot lay-in luminaire condition.
2. Know that circuit-breaker repair/replacement is excluded.
3. Study 07A and 07B crossover scope.
4. Tab NEC 240 and 250.
5. Practice broad NEC navigation. This exam spreads questions across many categories.
6. Know WAC 296-46B-901, 920, and 945.
7. Answer theory questions from knowledge when possible.
8. Practice 24-question technical sections in two hours and 17-question state-law sections in one hour.

Apply Through Labor & Industries Before Scheduling With PSI

07C is a 2,000-hour specialty, so electrician candidates first use Washington's specialty examination process through Labor & Industries.

L&I verifies the required work experience and training before issuing exam eligibility. After approval, the candidate receives the information needed to schedule the examination with PSI.

Approved candidates currently have one year to complete the required examination sections.

Current Retest Rules

If a candidate fails an exam section, Washington currently requires a two-week wait before retesting.

After three failures of a portion, the candidate must wait three months before another attempt. Within the one-year exam period, already-passed sections generally do not need to be repeated.

Current PSI Exam Fee

The current 07C Electrician exam totals three testing hours. PSI's current time-based schedule lists $65 for a three-hour electrical examination.

Confirm the live amount during scheduling because testing fees can change.

Current Washington Application and Certificate Fees

Washington's current fee schedule lists $102.20 for the zero-percent-supervision modified training certificate pathway.

The current journey-level, specialty, or reciprocal electrician application, including the original certificate and processing fee, is $114.60.

Older forms may show different amounts, so use the current WAC 296-46B-909 fee schedule when preparing payment.

Renewal Is Every Three Years

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

Current renewal is $92.60 online or $106.40 by mail, fax, or in person. Late renewal costs more.

Continuing Education Requires 24 Hours

During a normal three-year certification period, Washington electricians currently need 24 hours of approved continuing education.

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

If the certificate is more than 90 days expired, Washington generally requires reexamination before recertification.

A Practical 07C Study Plan

1. Start with WAC 296-46B-920. Learn exactly what 07C may and may not do.
2. Memorize the voltage and amperage limits. 277 V/20 A lighting and 250 V/60 A other circuits.
3. Memorize the six-foot whip rule and the eight-foot lay-in luminaire condition.
4. Study the circuit-breaker exclusion.
5. Study 07A and 07B crossover work.
6. Review NEC 240 Overcurrent Protection.
7. Review grounding, bonding, wiring methods, equipment, emergency systems, and special equipment.
8. Practice General Trade Knowledge & Theory.
9. Study WAC 296-46B-901 and 945 alongside the scope rule.
10. Take full timed 24-question technical and 17-question Washington Codes practice sections.

Study Like a Maintenance Electrician

A useful study method is to picture a real maintenance call in an office, school, store, warehouse, restaurant, or other nonresidential building.

Start with the equipment. What failed? What is the voltage and amperage? Is the work like in kind? Is the lighting circuit inside the 277-volt, 20-amp limit? Is the other equipment inside the 250-volt, 60-amp limit? Does the job involve a whip, luminaire, relay, contactor, motor, control device, or other existing utilization equipment?

Then check the legal boundary. Is someone asking you to replace a circuit breaker? Extend raceway? Modify branch-circuit conductors? Work in a classified location? Perform plumbing? If so, 07C may not be the correct certificate.

Review the Washington Nonresidential Maintenance Restricted Electrician 07C collection for specialty-focused preparation.

For the three core Washington exam references, review the Washington General Electrician Book Package. It contains the 2020 NEC, RCW 19.28, and WAC 296-46B, which are broader than 07C but form the current core exam-reference set.

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

Frequently Asked Questions

Conclusion

Washington's Restricted Nonresidential Maintenance Electrician 07C certificate is a focused maintenance credential for technicians who work on existing electrical utilization equipment in nonresidential environments. It sits below the broader 07 Nonresidential Maintenance specialty and uses tighter voltage, amperage, and scope limits.

The current experience pathway is designed for a 2,000-hour specialty. A trainee becomes eligible for the 07C examination after 1,000 qualifying supervised hours. Before passing the examination, the trainee must work under 100 percent supervision. Full specialty certification requires 2,000 qualifying hours.

After passing at the 1,000-hour point, Washington can issue a nonrenewable zero-percent-supervision modified training certificate. That certificate allows unsupervised 07C work while the trainee completes the remaining experience. The full 2,000-hour specialty pathway also requires 24 hours of approved basic trainee classroom instruction.

The main scope numbers are worth memorizing. Lighting branch circuits are limited to 277 volts and 20 amperes. Other qualifying equipment and circuits are limited to 250 volts and 60 amperes. Control and supply whips are limited to six feet when disconnected and reconnected under the specialty rule.

Lighting maintenance includes additional conditions. Failed luminaires may be replaced in place. Suspended lay-in luminaires may be relocated only under the rule's specific conditions. If a manufactured wiring assembly supplies the luminaire, the relocation is limited to eight feet and the assembly circuiting cannot be changed.

Circuit breakers are a major specialty trap. WAC 296-46B-901 identifies certain breaker replacement as permit-exempt work, but the 07C scope specifically says Restricted Nonresidential Maintenance does not include repair or replacement of circuit breakers. Permit exemption and license authority are not the same thing.

07C also includes crossover authority. Washington expressly allows this specialty to perform 07A Nonresidential Lighting Maintenance and Lighting Retrofit work and 07B Residential Maintenance work. That means 07C candidates should study those scopes because the exam can reflect the crossover.

07C still has important exclusions. External conductors, raceways, and conduit systems outside the equipment or whip are not treated as electrical equipment for this scope. Classified-location work under the specified NEC Articles 500 through 516 is prohibited. Regulated plumbing work is outside the specialty as well.

The current 07C Electrician exam contains about 24 NEC and Theory questions and allows two hours for that section. Washington Codes contains 17 questions and allows one hour. The current published total is 41 scored questions across three section-hours.

Overcurrent Protection and General Trade Knowledge & Theory are the largest individual categories at about three questions each. General Requirements, Wiring & Protection, Grounding & Bonding, Wiring Methods, Electrical Equipment, Special Equipment, and Emergency & Standby Systems contribute about two questions each.

The exam also includes smaller categories covering motors, hazardous locations, and special occupancies. The hazardous-locations question is especially important because Washington does not permit 07C to perform classified-location work.

The Washington Codes section deserves equal attention. Study WAC 296-46B-901, 920, and 945, trainee supervision, modified training certificates, electrician certification, contractor requirements, permits, inspections, renewal, and continuing education.

The current exam is open book. Washington's current exam instructions identify the 2020 National Electrical Code, current RCW 19.28, and current WAC 296-46B as the core testing references. Permanent tabs, highlighting, and underlining are permitted within the rules, while removable tabs and handwritten notes are not.

Washington field inspections currently use the 2023 NEC, while the licensing examination instructions still specify the 2020 NEC. Candidates should follow the current testing instructions for the exam and the currently adopted field code for actual work.

Labor & Industries must approve electrician examination eligibility before PSI scheduling. Approved candidates currently have one year to finish the required examination sections. Failed sections have a two-week waiting period, and three failures trigger a three-month wait.

PSI's current time-based schedule lists $65 for a three-hour exam. Washington's current fee schedule lists $102.20 for the zero-percent-supervision modified training certificate pathway and $114.60 for the specialty electrician application including the original certificate and processing fee.

Once fully certified, 07C renews every three years on the electrician's birthdate. Current renewal is $92.60 online or $106.40 by mail, fax, or in person. Renewal requires 24 hours of approved continuing education, including at least 8 hours of code update and 4 hours of RCW/WAC education.

The best way to prepare is to study both maintenance and boundaries. Learn how existing equipment, lighting, overcurrent protection, grounding, wiring methods, emergency systems, and basic theory work. Then learn exactly which parts of those systems 07C can touch. A restricted maintenance electrician succeeds by knowing how to fix the problem and when the problem belongs to somebody with a broader certificate.

Key Takeaways

• Washington 07C is a 2,000-hour Restricted Nonresidential Maintenance specialty, with exam eligibility after 1,000 qualifying supervised hours.
• The scope is limited to 277 volts/20 amperes for lighting branch circuits and 250 volts/60 amperes for other qualifying circuits, with a six-foot whip rule and strict restrictions on premises wiring.
• 07C can perform 07A and 07B work, but it cannot repair or replace circuit breakers, work in the listed classified locations, or perform regulated plumbing work.
• The current exam has about 24 NEC/Theory questions in 2 hours plus 17 Washington Codes questions in 1 hour, for 41 published scored questions.
• The exam is open book and currently uses the 2020 NEC plus current RCW 19.28 and WAC 296-46B, while Washington field inspections currently use the 2023 NEC.

Plain-Language Summary

Washington's 07C Restricted Nonresidential Maintenance Electrician certificate is for people who maintain, repair, and replace existing electrical utilization equipment in nonresidential settings.

It is a restricted specialty, not a general electrical license. The work has specific voltage, amperage, equipment, lighting, and location limits.

For lighting branch circuits, the maximum is 277 volts and 20 amperes. For other qualifying circuits and equipment, the maximum is 250 volts and 60 amperes.

The specialty can maintain, repair, or replace existing utilization equipment like in kind. It can also perform certain permit-exempt electrical maintenance work, but circuit-breaker repair and replacement are specifically excluded.

07C can disconnect and reconnect qualifying control and supply whips up to six feet long when the branch-circuit characteristics are not changed.

Lighting work has special rules. Failed luminaires can generally be replaced in place. Suspended lay-in luminaires can be relocated only under the conditions listed by Washington. If a manufactured wiring assembly is used, the luminaire can move no more than eight feet and the circuiting cannot be changed.

Washington also lets 07C perform the work defined for 07A Nonresidential Lighting Maintenance and Lighting Retrofit and 07B Residential Maintenance. That means 07C candidates should study those specialty scopes too.

07C does not include external conductors, raceways, or conduit systems outside the equipment or whip. It also does not allow classified-location work covered by the listed NEC Articles 500 through 516 or regulated plumbing work.

The current training path requires 1,000 qualifying supervised hours before you can take the 07C exam. Full certification requires 2,000 hours.

Before you pass the exam, you work under 100 percent supervision. After you pass, Washington can issue a nonrenewable zero-percent-supervision modified training certificate so you can work unsupervised in 07C while finishing the remaining hours.

A 2,000-hour specialty also requires 24 hours of approved basic trainee classroom instruction.

The current 07C Electrician exam has 24 NEC and Theory questions and gives you two hours. The Washington Codes section has 17 questions and gives you one hour. That is 41 published scored questions across three hours.

Overcurrent Protection and General Trade Knowledge & Theory are the biggest individual categories at about three questions each. Many other NEC topics contribute one or two questions.

The exam is open book and currently uses the 2020 National Electrical Code, current RCW 19.28, and current WAC 296-46B. Washington field inspections currently use the 2023 NEC, so check the official exam instructions before test day.

PSI currently lists $65 for a three-hour electrical exam. Washington currently lists $102.20 for the zero-percent-supervision modified training pathway and $114.60 for the specialty electrician application including the original certificate and processing fee.

The full 07C certificate renews every three years on your birthdate. Current renewal requires 24 hours of continuing education, including 8 hours of code update and 4 hours of RCW/WAC education.

Use the Washington Nonresidential Maintenance Restricted Electrician 07C collection from 1ExamPrep to organize your preparation around maintenance scope, 07A/07B crossover, overcurrent protection, broad NEC navigation, Washington laws and rules, and open-book exam strategy.