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Washington Master Nonresidential Maintenance (EL07) License

The Master Nonresidential Maintenance (EL07) License allows you to do the following work:

  • Supervise electrical work and electricians on the following:
    • Maintenance, repair and replacement of:
      • Like-in-kind existing electrical equipment and conductors
    • Installation and connections of:
      • Temporary conductors and equipment for the purpose of load testing, not to exceed 600 volts
    • Replacement of a device(s) that provides overcurrent or overload protection for the new equipment with a device(s) having a lower ampere rating in accordance with the nameplate rating of the new equipment:
      • Where the new equipment has a lower ampere rating than the equipment being replaced and there are no modifications to the ampacity rating of the existing conductors
    • Excluded from:
      • Maintenance activities in residential dwellings for the purposes of accumulating training experience toward qualification for the residential (02) specialty electrician examination

How to Get the Master Nonresidential Maintenance (EL07) License in Washington?

  1. Meet the requirements necessary for the certification level:
    • Have an electrician certificate issued by the department for at least two years
  2. Obtain the following information before doing the application process with PSI©:
    • Social Security Number
    • Mailing address
    • Email address
    • Corresponding fees
  3. Fill out and submit the Application for the Master Nonresidential Maintenance (EL07) Examination 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. Please refer to the list of local offices before visiting
  4. Expect a notice by mail from the Labor & Industries department and instructions on exam scheduling once the application is reviewed
  5. Take and pass the examination. For more 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 to an electrical contractor and submit it with the corresponding fee

Washington Master Nonresidential Maintenance (EL07) License Exam Prep Courses

Washington Master Nonresidential Maintenance (EL07) License Exams

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

Washington Master Nonresidential Maintenance (EL07) Trade Exam

  • Testing Method: Computer-based testing
  • Testing Company: PSI©
  • Number of Questions: 54
  • Types of Questions: Multiple choice
  • Time Allowed: 180 Minutes
  • Minimum Passing Score: 70%
  • Subjects Involved (No. of Questions):
    • NEC 90 - Introduction (1)
    • NEC 100-110 - General Requirements (3)
    • NEC 200-225, 280-285 - Wiring & Protection (2)
    • NEC 230 - Services (2)
    • NEC 240 - Overcurrent Protection (4)
    • NEC 250 - Grounding & Bonding (4)
    • NEC 300-398 - Wiring Methods (8)
    • NEC 400-427, 455-480 - Electrical Equipment (4)
    • NEC 430-450 - Motors, HVAC, Generators & Transformers (4)
    • NEC 490 - Equipment > 600 volts (2)
    • NEC 500-516 - Hazardous Locations (3)
    • NEC 517-590 - Special Occupancies (2)
    • NEC 600-695 - Special Equipment (3)
    • NEC 700-702 - Emergency & Standby Systems (3)
    • NEC 705-780 - Special Conditions (2)
    • NEC 800-830 - Communication Systems (1)
    • General Trade Knowledge & Theory (6)
  • PSI© Master Nonresidential Maintenance (EL07) Official Content Outline

Washington Master Nonresidential Maintenance (EL07) WA Codes Exam

  • Testing Method: Computer-based testing
  • Testing Company: PSI©
  • Number of Questions: 20
  • Types of Questions: Multiple choice
  • Time Allowed: 60 Minutes
  • Minimum Passing Score: 70%
  • Subjects Involved (No. of Questions):
    • Washington Laws & Rules (RCW & WAC) (20)
  • PSI© WA Codes Official Content Outline

Washington Master Nonresidential Maintenance (EL07) Book Set

This set of books includes all required references for the Master Nonresidential Maintenance (EL07) 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 NONRESIDENTIAL MAINTENANCE (EL07) - BOOK SET WITHOUT TABS INCLUDES ALL BOOKS FOR TRADE AND BUSINESS EXAMS

    Sales price: $349.45

  • WASHINGTON MASTER NONRESIDENTIAL MAINTENANCE (EL07) - BOOK SET WITH TABS INCLUDES ALL BOOKS FOR TRADE AND BUSINESS EXAMS

    Sales price: $399.45

Washington Master Nonresidential Maintenance (EL07) Exam Books

Books Allowed in Testing

Washington Master Nonresidential Maintenance (EL07) WA Codes Exam Books

Books Allowed in Testing

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