Washington Master Residential Maintenance (7B) License

The Master Residential Maintenance (7B) License allows you to do the following work:

• Supervise electrical work and electricians on the following:
  • Maintenance, repair, or replacement of like-in-kind existing electrical utilization equipment, and all permit exempted work for:
    • Residential dwellings
    • Multi Story dwelling structures with no commercial facilities
    • The interior of dwelling units in multistory structures with commercial facilities
  • Work limited to equipment and circuits to a maximum of 250 volts, 60 amperes, and single phase maximum
  • Disconnection and reconnection of low-voltage control and line voltage supply whips not over six feet in length provided:
    • There are no modifications to the characteristics of the branch circuit or whip
  • Electrical equipment does not include:
    • Electrical conductors
    • Raceway or conduit systems external to the equipment or whip

CANNOT perform any plumbing work

How to Get the Master Residential Maintenance (7B) License in Washington?

1. Meet the requirements for the certification level:
   • Be certified as an electrician for at least 2 years
2. Gather the followinginformation before applying for the exam with PSI©:
   • Social Security Number
   • Mailing address
   • Email address
   • Corresponding fees
3. Fill out the Application for Master Residential Maintenance (7B) Examination and send it, along with all the previous documents, to:
   Electrical Program
   PO Box 44460
   Olympia, WA 98504-4460
   The Washington State Department of Labor & Industries allows candidates to apply in person. Refer to the list of local offices before visiting
4. Expect a response by mail from the Labor & Industries department along with instructions on scheduling the exam once the application has been reviewed
5. Take and pass the master examination. For further information on the subjects and study material needed to prepare for the exam, refer to the Candidate Information Bulletin
6. Complete a Change Assignment of Master Certificate form to be assigned as a designated master electrician to an electrical contractor and submit it with the corresponding fee

Washington Master Residential Maintenance (7B) License Exam Prep Courses

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Washington Master Residential Maintenance (7B) License Exams

Below is all the information related to the trade and WA Codes exams, including the official reference lists.

Washington Master Residential Maintenance (7B) Book Set

This set of books includes all required references for the Master Residential Maintenance (7B) and WA Codes exams. Orders placed before 2 PM are shipped the same day via UPS and a tracking number is emailed before 3 PM.

Washington Master Residential Maintenance (7B) Exam Books

Books Allowed in Testing

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Washington Master Residential Maintenance (7B) WA Codes Exam Books

Books Allowed in Testing

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