Washington Residential (PL02) Contractor License

The Residential (PL02) Contractor License allows you to do the following work:

• Install, maintain, and repair plumbing in:
  • Single-family dwellings
  • Duplexes
  • Apartment buildings which do not exceed three stories

How to Get the Residential (PL02) Contractor’s License in Washington?

1. Have experience as a Plumber Trainee. If you don’t have experience as a Plumber Trainee, meet the following requirements and apply for a Plumbing Trainee certificate:
   • Be at least 16 years old
   • Work under the supervision of a journey level or certified plumber
   • Take 8 hours of plumbing code and 4 hours of electrical classes in two years
2. Fill out anAffidavit of Experience to report the supervised work hours as a plumber trainee
3. Meet the required experience or education depending on the license applying for:
   • Residential (PL02): Journey Level Plumber (PL01): 8,000 hours as a plumber trainee and 4,000 hours working in commercial/ industrial installations
4. Fill out and notarize an Application for Contractor License
5. Complete and obtain a Surety Bond or Assigned Savings Account
6. Get a Certificate of Liability Insurance
7. Choose a designated plumber to hold the valid plumber certificate. The designated plumber can be another person or the applicant, depending on whether they are applying as a business or as a sole proprietor
8. Satisfy the following educational requirements and apply for the plumber examination with PSI©:
   • Residential (PL02) - 24 hours of continuing education, including:
     • 12 hours of Uniform Plumbing Code
     • 4 hours of Industry-Related Electrical
     • 8 hours in any Code, Industry-Related Electrical, or Industry-Related Plumbing area
9. Refer to the PSI© Plumbing Examinations Candidate Information Bulletin, for more information on the test locations, subjects and books to prepare for the exam
10. Submit the completed documents to:
    Washington State Department of Labor & Industries
    Plumber Certification
    PO Box 44470
    Olympia WA 98504-4470

Washington Residential (PL02) Contractor License Exam Prep Course

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Washington Residential (PL02) Contractor License Exam

Below is all the information related to the trade exam, including the official reference list.

Washington Residential (PL02) Contractor Trade Exam

• Testing Method: Computer-based testing
• Testing Company: PSI©
• Number of Portions: 3
• Types of Questions: Multiple choice
• Time Allowed: 90 Minutes (Per portion)
• Minimum Passing Score: 70% (Per portion)
• Portions Involved (No. of Items):
  • Residential code and general trade knowledge (100)
  • Waste and Vents Residential Drawings (25)
  • Water Sizing Residential Drawings (25)
• PSI© Residential (PL02) Official Content Outline

Residential Specialty candidates need to apply for eligibility with the Department before being allowed to take the examination. They must also pass all 3 portions of the exam. Please note that this examination is closed book.

Washington Residential (PL02) Contractor Book Set

This set of books includes all required references for the Residential (PL02) exam. Orders placed before 2 PM are shipped the same day via UPS and a tracking number is emailed before 3 PM.

Washington Residential (PL02) Contractor Exam Books

Books Not Allowed in Testing

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