Not every electrical job in Washington needs a full journey level certificate. The state has a list of specialty certificates, each limited to one kind of work.

They are cheaper in time and often faster to earn. They are also the way many electricians start, and some specialty hours can count toward the journey level later.

This guide explains the main specialties. This site is independent and is not affiliated with Washington L&I, PSI or NFPA.

In short

  • Specialties are listed in WAC 296-46B-920. Each has its own scope of work.1
  • Residential (02), pump and irrigation (03), signs (04), limited energy (06) and nonresidential maintenance (07) need 4,000 hours.2
  • Several smaller specialties start with a short supervised period, then allow the exam.2
  • Every specialty exam has a 17-question Washington law section.3
  • Only specialties with a 4,000-hour requirement can be credited toward the 01 journey certificate.2
Contents
  1. The main specialties
  2. Maintenance and repair specialties
  3. Telecommunications and doors
  4. Hours and exams
  5. Specialty or journey level?
  6. Common questions
  7. Sources

The main specialties

Residential (02)

Limited to telecommunications, low-voltage and line-voltage wiring of one- and two-family dwellings, and multifamily dwellings of certain construction types with limits on height. It does not include commercial occupancies such as motels, hotels, offices or stores.1

Pump and irrigation (03) and domestic pump (03A)

The 03 specialty covers the electrical connection for domestic and public water systems and irrigation water pumps. The 03A specialty is narrower: extending a branch circuit to pumps up to 7 1/2 horsepower in residential water or sewage systems.1

Signs (04)

Placement and connection of signs and outline lighting, and a maximum 60 ampere, 120/240 volt single-phase service to supply a remote sign.1

Limited energy (06)

Installation, repair and maintenance of signaling and power-limited circuits. It is restricted to low-voltage circuits and includes telecommunications, fire protection signaling, intrusion alarms, lighting control systems and sound systems.1

HVAC/refrigeration (06A and 06B)

Specialties for HVAC and refrigeration wiring, with the scope defined in detail in the WAC. The 06A specialty is not limited by voltage, phase or amperage within its scope.1

Maintenance and repair specialties

The 07 family covers maintenance work and is the most varied group.1

Nonresidential maintenance (07)

Maintenance, repair and replacement of like-in-kind existing electrical equipment and conductors.1

07A, 07B and 07C

07A is nonresidential lighting maintenance and retrofit inside existing luminaires. 07B is residential maintenance, limited to 250 volts, 60 amperes and single phase. 07C is restricted nonresidential maintenance, limited to 277 volts and 20 amperes on lighting branch circuits, and 250 volts and 60 amperes on other circuits.1

Appliance repair (07D) and equipment repair (07E)

07D covers servicing and replacing self-contained appliances and small equipment on a single supply of up to 250 volts and 60 amperes. 07E covers servicing utilization equipment as defined in RCW 19.28.095.1

Telecommunications and doors

Telecommunications (09) is limited to installing, maintaining and testing telecommunications systems and pathways. Door, gate and similar systems (10) covers electrical operator wiring and equipment for electric gates, doors and similar systems.1

Hours and exams

The statute requires 4,000 hours of supervised work for the residential, pump and irrigation, sign, limited energy and nonresidential maintenance specialties. Smaller specialties such as appliance repair start with a short, fully supervised initial period, then allow the exam, and require a minimum number of hours in the specialty before certification.2

The exams are shorter than the journey exam. The PSI bulletin lists, for example, 40 NEC and theory questions for residential (02), 34 for limited energy (06) and 30 for signs (04). Each also has the 17-question law section.3 They are open book under the same rules as the journey exam. See our guide to the Washington electrical exam.

Check your knowledge with a free practice test.

Specialty or journey level?

A specialty limits you to its scope of work, but it can also be a step. A specialty with a 4,000-hour requirement counts toward the apprenticeship hours for the 01 exam, while shorter ones do not.2 Since the end of the trainee grace period on 1 July 2026, 01-type work requires apprenticeship registration, while trainees are not required to be registered apprentices to work in a specialty.4

For the journey route, read how to get a Washington 01 journey certificate.

Common questions

Do I need an apprenticeship for a specialty certificate?

No. The statute allows qualifying by supervised work hours, and trainees working in a specialty do not need apprenticeship registration.24

Which specialty is the broadest?

Residential (02) for homes, and nonresidential maintenance (07) for maintenance work. Their scope is set by WAC 296-46B-920.1

Is the law section the same for every specialty?

Every specialty exam has 17 RCW and WAC questions.3

Sources

Scopes are summarized from the rule text, which has the full detail and exceptions. Read WAC 296-46B-920 before you rely on a specialty for a job.

  1. WAC 296-46B-920: Electrical/telecommunications license/certificate types and scope of work (app.leg.wa.gov)
  2. RCW 19.28.191: Certificates of competency, eligibility to take the examination (app.leg.wa.gov)
  3. PSI: Washington Electrical Candidate Information Bulletin (test-takers.psiexams.com)
  4. Washington L&I: Electrical Currents newsletter, May 2026 (lni.wa.gov)