Washington Residential Maintenance Administrator 07B: Requirements, Exam, Scope, and Study Guide

Washington's Residential Maintenance Administrator 07B is the specialty administrator credential for contractors that perform residential maintenance electrical work. The job is about keeping a contractor legal, organized, and inside the 07B boundary. That means knowing Washington electrical law, administrative rules, permit and inspection requirements, worker-certification rules, and the National Electrical Code topics that apply to residential maintenance.

The administrator pathway is different from the electrician pathway. Washington currently has no work-experience prerequisite to sit for an electrical administrator examination. Candidates schedule directly with PSI and do not need Labor & Industries approval before testing.

Start with the Washington Residential Maintenance Administrator 07B collection from 1ExamPrep. This guide explains the 07B residential occupancy limits, 250-volt and 60-amp limits, six-foot whip rule, permit-exempt maintenance work, current 47-question open-book exam, 2020 NEC exam reference, Washington laws and rules, current fees, renewal, continuing education, contractor assignment, and a practical study plan.

What Does a Washington 07B Administrator Do?

An electrical administrator is responsible for helping an electrical contractor comply with Washington electrical laws, rules, and regulations. A specialty administrator may be assigned only to a contractor holding the matching specialty. For 07B, that means Residential Maintenance.

The administrator should understand the technical work well enough to recognize proper maintenance and out-of-scope work. The role also covers contractor licensing, electrician and trainee certification, permits, inspections, renewal rules, and the legal limits of the specialty.

Administrator certification does not authorize hands-on electrical work by itself. A 07B administrator who personally performs electrical work must separately hold an appropriate electrician certificate.

No Experience Is Required Before the Administrator Exam

Washington currently has no qualification requirements for taking an administrator certificate examination. Candidates contact PSI directly and do not first submit electrician experience affidavits to L&I.

That is very different from the 07B electrician path, which uses supervised work experience. An administrator can enter the testing process without being a certified electrician, but the exam still expects a working grasp of code, theory, Washington law, and specialty scope.

No Prerequisite

Exam Eligibility

No electrician work-experience prerequisite is required to sit for the administrator exam.

Direct to PSI

Scheduling

Administrator candidates schedule directly with PSI without prior L&I exam approval.

1 Year

Exam Period

All required administrator sections must be passed within the one-year examination period.

90 Days

After Passing

L&I must receive the required passing reports and certificate materials within 90 days of the last passing score.

Where 07B Can Work

Residential Maintenance 07B is limited to residential dwellings allowed by Washington's residential scope, multistory dwelling structures with no commercial facilities, and the interior of dwelling units in multistory structures that do contain commercial facilities.

That means occupancy is part of the license. A contractor may maintain equipment inside an apartment unit while the commercial storefront downstairs remains outside ordinary 07B authority.

The Main Electrical Limit Is 250 Volts, 60 Amps, Single Phase

Qualifying 07B equipment and circuits are limited to 250 volts, 60 amperes, single phase. These numbers should be automatic for an administrator because they help decide whether a work order belongs to Residential Maintenance before the truck even leaves the shop.

250 Volts

Maximum Voltage

The qualifying circuit or equipment must stay within the 07B voltage limit.

60 Amps

Maximum Current

The work must stay within the specialty's current limit.

Single Phase

Phase Limit

Three-phase maintenance is outside the ordinary 07B specialty.

Residential

Occupancy Limit

The job must occur in a residential occupancy authorized by the rule.

Existing Utilization Equipment and Like-in-Kind Work

07B focuses on maintaining, repairing, or replacing existing electrical utilization equipment like in kind. A maintenance job can involve appliances, receptacles, switches, luminaires, alarms, thermostats, relays, controls, motors, or other equipment when the exact task fits the specialty and permit rules.

The phrase like in kind matters because maintenance is not the same as redesign. Replacing an existing device within the rule can be 07B work. Building a new circuit across the dwelling is a different project.

Permit-Exempt Work Under WAC 296-46B-901

Washington allows 07B to perform qualifying permit-exempt work defined in WAC 296-46B-901. Depending on the exact conditions, that list can include like-in-kind replacement of lamps, fuses, controls, one household appliance, qualifying branch-circuit breakers, residential luminaires, line-voltage smoke or carbon monoxide alarms, limited numbers of switches, dimmers, receptacles, thermostats, heating elements, exact replacement lighting components, and certain motors.

Permit-exempt does not mean scope-free. The work still must fit the 07B occupancy, voltage, amperage, phase, and maintenance limits.

The Six-Foot Whip Rule

07B may disconnect and reconnect low-voltage control and line-voltage supply whips not over six feet long when the characteristics of the branch circuit or whip are not modified.

The six-foot rule supports equipment service without turning the specialty into a new branch-circuit license. An administrator should train technicians to recognize the difference between reconnecting a whip and moving or extending the premises wiring.

External Conductors and Raceway Are Outside the Equipment Definition

For 07B, Washington says electrical equipment does not include electrical conductors, raceway, or conduit systems external to the equipment or whip.

This boundary is easy to explain and easy to violate. A technician may be authorized to service the equipment but not authorized to extend the branch circuit feeding it. If the repair needs a new raceway run, new conductor route, or larger premises-wiring change, the contractor may need broader authority.

Plumbing Is Outside 07B

Residential Maintenance 07B does not include plumbing work regulated under Washington plumbing law. This matters because service calls often involve water heaters, dishwashers, disposal equipment, pumps, and other equipment sitting beside piping.

The electrical work may be 07B. The regulated plumbing portion is still somebody else's licensed job.

07B Is Not the Same as Residential 02

The 02 Residential certificate is a broader residential installation specialty. The 07B credential is narrower and centers on maintenance, like-in-kind replacement, qualifying permit-exempt work, and limited equipment connections.

A remodel, new branch circuit, service upgrade, feeder installation, or broad rewiring project should not be treated as 07B simply because it happens inside a house.

Current 07B Administrator Exam at a Glance

30 Questions

NEC & Theory

The current 07B Administrator technical section contains about 30 scored questions.

2 Hours

Technical Time

Candidates receive two hours for NEC & Theory.

17 Questions

Washington Codes

The state-law section contains 17 scored questions.

1 Hour

State-Law Time

Candidates receive one hour for Washington laws and rules.

The current published outline totals 47 scored questions across three testing hours. There is no separate Major Load Calculations section for the 07B Administrator exam.

Current 07B Administrator Exam Blueprint

Knowledge AreaApprox. Questions
NEC 90 - Introduction1
NEC 100-110 - General Requirements2
NEC 200-225, 280-285 - Wiring & Protection2
NEC 240 - Overcurrent Protection3
NEC 250 - Grounding & Bonding3
NEC 300-398 - Wiring Methods3
NEC 400-427, 455-480 - Electrical Equipment3
NEC 430-450 - Motors, HVAC, Generators & Transformers3
NEC 600-695 - Special Equipment2
NEC 700-702 - Emergency & Standby Systems2
NEC 705-780 - Special Conditions1
General Trade Knowledge & Theory5
Total NEC & Theory30
Washington Laws & Rules17

General Trade Knowledge & Theory is the largest individual category at about five questions. Overcurrent Protection, Grounding & Bonding, Wiring Methods, Electrical Equipment, and Motors/HVAC/Generators/Transformers contribute about three each.

General Trade Knowledge and Theory Are About Five Questions

Administrators need enough electrical theory to understand what technicians are doing and recognize when a maintenance plan is unsafe or unrealistic. Review voltage, current, resistance, power, Ohm's law, series and parallel relationships, basic AC theory, electrical measurements, equipment ratings, and troubleshooting logic.

Open book helps with rules. It does not make arithmetic disappear.

Overcurrent Protection, Grounding, Wiring Methods, Equipment, and Motors Are Core Topics

The current blueprint gives about three questions each to NEC 240, NEC 250, Wiring Methods, Electrical Equipment, and Motors/HVAC/Generators/Transformers. Those are practical maintenance topics.

  • Overcurrent-device ratings and equipment protection
  • Equipment grounding and bonding
  • Boxes, fittings, flexible connections, and wiring-method basics
  • Equipment ratings and nameplates
  • Motors, overloads, relays, contactors, and transformers

The administrator needs to understand the technical rule and then ask a second question: does 07B actually authorize the contractor to perform that work?

Special Equipment and Emergency Systems Still Matter

Special Equipment and Emergency & Standby Systems contribute about two questions each. Special Conditions adds about one. These topics can show up in residential settings through generators, pools and spas, specialty systems, or equipment that does not live in the ordinary receptacle-and-lighting chapters.

Learn where the articles live so open-book time is spent reading the answer, not hunting the table of contents like it owes you money.

The Washington Codes Section Has 17 Questions

The Washington Codes section is one of the most important parts of an administrator exam. Study RCW 19.28 and WAC 296-46B, especially contractor licensing, administrator assignment, permits, inspections, specialty scope, electrician and trainee certification, enforcement, renewal, and continuing education.

  • WAC 296-46B-901 permit-exempt work
  • WAC 296-46B-920 specialty scope
  • WAC 296-46B-930 assignment
  • WAC 296-46B-935 administrator certification
  • WAC 296-46B-960 examination rules
  • WAC 296-46B-970 continuing education

The Current Exam Is Open Book

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

Original copyrighted references may be highlighted, underlined, and permanently tabbed before testing. Printed RCW/WAC material is accepted in the required binder format. Removable tabs, sticky notes, and handwritten notes are not allowed.

Current Exam NEC vs. Current Field NEC

Washington currently uses the 2023 NEC for field installations and inspections. The state has announced that the 2026 NEC is scheduled to replace the current 2023 edition on December 31, 2026.

The current PSI licensing-exam bulletin still uses the 2020 NEC. For exam day, follow the official PSI/L&I testing references. For actual field work, follow the code edition and Washington amendments currently in force.

Check again before test day. Exam references and field-code adoption do not always change on the same date.

The Three Core Study References

A practical 07B Administrator study set begins with the 2020 NEC, RCW Chapter 19.28, and WAC Chapter 296-46B.

The Washington General Administrator Book Package contains those same three core references. It is broader than 07B, so use the 07B PSI outline and WAC scope rules to focus your study.

Open-Book Strategy for a Three-Hour Exam

  1. Memorize the scope numbers. Know 250 volts, 60 amperes, single phase, and the six-foot whip rule.
  2. Know the residential occupancy limits. Location is part of the specialty.
  3. Read WAC 296-46B-901 and 920 together. Permit exemption and specialty authority work together.
  4. Tab NEC 240 and 250. Both contribute about three questions.
  5. Review wiring methods, equipment, motors, and controls.
  6. Practice theory without relying on book lookup.
  7. Study contractor and administrator rules separately from the NEC.
  8. Take 30-question NEC/Theory practice sections in two hours and 17-question Washington Codes sections in one hour.

Administrator Candidates Schedule Directly With PSI

Administrator candidates do not need L&I approval before scheduling. PSI uses the candidate's identifying information to create the test record, and all required sections must be passed within one year.

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

Apply for the Certificate Within 90 Days

Passing the exam is not the final step. After all required sections are passed, L&I must receive the required passing reports, identifying information, and certificate fee within 90 days of the last passing score date.

Missing that deadline can require the complete administrator examination to be taken again.

Current Exam and Administrator Fees

PSI currently lists $65 for a three-hour examination. Washington's current fee schedule lists $160.00 for the original electrical administrator certificate, except telecommunications.

Assignment or unassignment of a master/administrator designation currently costs $53.00. Always confirm live amounts before paying.

Contractor Assignment

A 07B specialty administrator may be assigned to a contractor holding the matching Residential Maintenance specialty. Washington expects the assigned administrator to perform real compliance duties for the contractor.

The administrator should be involved enough to review scope, worker credentials, permits, inspections, and whether a service call has expanded beyond 07B.

Renewal and Continuing Education

Washington electrical administrator certificates renew every three years and expire on the holder's birthdate. A normal three-year period requires 24 hours of approved continuing education, including at least 8 hours of code update and 4 hours of RCW/WAC review.

Current administrator renewal is $175.70 online or $202.20 by mail, fax, or in person. Renewal more than 90 days after expiration is denied and requires reexamination before recertification.

A Practical 07B Administrator Study Plan

  1. Read the 07B scope in WAC 296-46B-920 until the occupancy and electrical limits are automatic.
  2. Read WAC 296-46B-901 and mark the permit-exempt Class A work relevant to residential maintenance.
  3. Practice 250 V, 60 A, single-phase scope questions and the six-foot whip rule.
  4. Study NEC 240, 250, wiring methods, equipment, motors, and controls.
  5. Practice theory calculations quickly.
  6. Study administrator assignment, contractor licensing, permits, inspections, and certification rules.
  7. Take timed 30-question technical sections.
  8. Take timed 17-question Washington Codes sections.

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

Frequently Asked Questions

It is the specialty administrator certificate associated with Washington's 07B Residential Maintenance classification. The administrator helps a matching contractor comply with Washington electrical laws, rules, scope, permits, inspections, and worker-certification requirements.

No. Washington currently has no qualification requirements for taking an administrator certificate examination.

No. Administrator candidates currently schedule directly with PSI without prior Labor & Industries exam approval.

No. Administrator certification by itself does not authorize hands-on electrical work. You must separately hold the appropriate electrician certificate to perform electrical work.

07B is limited to qualifying residential dwellings, multistory dwelling structures without commercial facilities, and the interiors of dwelling units in multistory structures that contain commercial facilities.

The specialty is limited to equipment and circuits not exceeding 250 volts, 60 amperes, single phase.

Yes. 07B includes qualifying permit-exempt work under WAC 296-46B-901 when the exact task also fits the specialty's residential, voltage, amperage, phase, and maintenance limits.

07B may disconnect and reconnect qualifying low-voltage control and line-voltage supply whips up to six feet when the characteristics of the branch circuit or whip are not modified.

The current published outline has about 30 NEC and Theory questions plus 17 Washington Codes questions, for 47 scored questions.

The NEC and Theory section allows two hours. The Washington Codes section allows one hour.

Yes. PSI currently identifies Washington electrical examinations as open book, subject to testing-center reference rules.

The current PSI bulletin bases Washington electrical exam questions on the 2020 National Electrical Code. Washington field work currently uses the 2023 NEC, so check the bulletin again before testing.

Washington and PSI currently use a 70 percent passing score for required electrical examination sections.

Washington electrical administrator certificates renew every three years on the holder's birthdate. A normal three-year period currently requires 24 hours of approved continuing education.

Start with the Washington Residential Maintenance Administrator 07B collection. The Washington General Administrator Book Package contains the three core Washington administrator references.

Conclusion

The Washington Residential Maintenance Administrator 07B credential is a specialty compliance certificate for contractors that perform qualifying residential electrical maintenance. It is designed for the person who helps keep the contractor inside Washington law, inside the National Electrical Code rules that apply to the work, and inside the narrow 07B specialty boundary.

The administrator pathway has no electrician work-experience prerequisite. Candidates currently schedule directly with PSI without first receiving L&I exam approval. That makes entry to the exam simple, but the exam itself still expects technical knowledge, code-navigation skill, Washington-law knowledge, and a strong understanding of contractor responsibility.

The 07B specialty is limited by occupancy. It applies to qualifying residential dwellings, multistory dwelling structures with no commercial facilities, and the interior of dwelling units in multistory structures that do contain commercial facilities. A commercial space in the same building does not automatically become 07B work.

The electrical limit is also clear: 250 volts, 60 amperes, single phase. The specialty centers on maintenance, repair, and like-in-kind replacement of existing electrical utilization equipment. It also includes qualifying permit-exempt work under WAC 296-46B-901 when the task remains inside all 07B limits.

The six-foot whip rule allows qualifying control and line-voltage supply whips to be disconnected and reconnected without changing the circuit or whip characteristics. At the same time, the 07B equipment definition excludes external conductors, raceways, and conduit systems outside the equipment or whip. That line helps separate maintenance from premises rewiring.

Administrators should understand the difference between 07B and the broader 02 Residential specialty. New branch circuits, broad remodeling, feeder work, service work, and large wiring alterations are not ordinary Residential Maintenance projects simply because they occur inside a dwelling.

The current 07B Administrator exam contains 30 NEC and Theory questions in two hours plus 17 Washington Codes questions in one hour, for 47 published scored questions across three hours. There is no separate Major Load Calculations section.

General Trade Knowledge & Theory is the largest individual category at about five questions. Overcurrent Protection, Grounding & Bonding, Wiring Methods, Electrical Equipment, and Motors/HVAC/Generators/Transformers contribute about three each. Special Equipment and Emergency & Standby Systems contribute about two each.

The Washington Codes section deserves major attention because administrator work is compliance work. Study RCW 19.28 and WAC 296-46B, especially permit-exempt work, specialty scope, contractor licensing, administrator assignment, worker certification, permits, inspections, examination rules, renewal, continuing education, and enforcement.

The exam is open book. The current PSI bulletin bases Washington electrical exam questions on the 2020 National Electrical Code, current RCW 19.28, and current WAC 296-46B. Permanent tabs, highlighting, and underlining are allowed under the rules, while removable notes and handwritten reference notes are prohibited.

Washington currently uses the 2023 NEC for field installations and inspections, while the PSI licensing exam still uses the 2020 NEC. The state has announced that the 2026 NEC is scheduled to replace the current 2023 field edition on December 31, 2026. Candidates should confirm the exam reference shortly before testing because exam and field-code changes can happen on different schedules.

Administrator candidates must pass all required sections within one year. After passing, L&I must receive the required passing reports and certification materials within 90 days of the last passing score. Missing the deadline can send the candidate back to the exam.

PSI currently lists $65 for a three-hour exam. Washington currently lists $160 for the original electrical administrator certificate and $53 for administrator/master assignment or unassignment. Normal administrator renewal is every three years, with current renewal at $175.70 online or $202.20 by mail, fax, or in person.

A normal three-year administrator period requires 24 hours of approved continuing education, including at least eight hours of code update and four hours of RCW/WAC review. More than 90 days past expiration means reexamination is required for recertification.

The strongest 07B Administrator candidates study the equipment and the business rules at the same time. Learn how residential maintenance works, then learn exactly where the contractor must stop. That combination is the center of the administrator role.

Key Takeaways

  • Washington 07B Administrator candidates currently have no work-experience prerequisite and may schedule directly with PSI.
  • The current exam has about 30 NEC/Theory questions in 2 hours plus 17 Washington Codes questions in 1 hour, for 47 published scored questions.
  • 07B is limited to qualifying residential occupancies and equipment/circuits up to 250 volts, 60 amperes, single phase, with a six-foot whip rule.
  • The exam is open book and currently uses the 2020 NEC plus current RCW 19.28 and WAC 296-46B.
  • The original administrator certificate currently costs $160 and normal renewal is every 3 years with continuing education requirements.

Plain-Language Summary

The Washington Residential Maintenance Administrator 07B certificate is for people who help a specialty electrical contractor stay compliant while doing residential maintenance work.

You do not need electrician work experience before taking the Administrator exam. Washington currently lets administrator candidates schedule directly with PSI without L&I exam approval.

The administrator certificate does not let you personally perform electrical work unless you also hold the correct electrician certificate.

07B is limited to certain residential occupancies. It covers qualifying dwellings, multistory dwelling structures without commercial facilities, and the interiors of dwelling units inside mixed-use multistory structures.

The main electrical limit is 250 volts, 60 amperes, single phase. The specialty centers on existing utilization equipment, like-in-kind maintenance, repair, and replacement.

07B can also perform qualifying permit-exempt work listed in WAC 296-46B-901 when the exact task fits all specialty limits. Permit-exempt does not mean unlimited. The contractor still has to stay inside the 07B occupancy, voltage, amperage, phase, and maintenance boundaries.

The six-foot whip rule lets 07B disconnect and reconnect qualifying control and supply whips up to six feet long when circuit characteristics are unchanged.

Washington also says external conductors, raceways, and conduit systems outside the equipment or whip are not part of the 07B equipment definition. That means broad new branch-circuit work is not ordinary 07B maintenance.

The current 07B Administrator exam has 30 NEC and Theory questions and gives you two hours. The Washington Codes section has 17 questions and gives you one hour. That makes 47 published scored questions over three hours.

General Trade Knowledge & Theory is about five questions. Overcurrent Protection, Grounding & Bonding, Wiring Methods, Electrical Equipment, and Motors/HVAC/Generators/Transformers 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, so keep exam references and field-code editions separate.

All required administrator sections must be passed within one year. After passing, the score reports and certificate materials must reach L&I within 90 days of the last passing score.

PSI currently lists $65 for a three-hour exam. Washington currently lists $160 for the original administrator certificate and $53 for assignment or unassignment.

Administrator certificates renew every three years on the holder's birthdate. A normal three-year renewal currently requires 24 hours of approved continuing education, including eight hours of code update and four hours of RCW/WAC review.

Use the Washington Residential Maintenance Administrator 07B collection from 1ExamPrep to organize preparation around residential maintenance scope, the 2020 NEC exam reference, Washington law, contractor compliance, and open-book navigation.