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Exam dates and exam application instructions
What's new
All applicants for journeyman and residential specialty exams are required to have completed, prior to testing, 16 hours of continuing education with a minimum of 4 hours of that being electrical.
Exam content information
The Journeyman and Residential Specialty examination is based on the 2006 Uniform Plumbing Code. The examination also includes questions based on Washington State Building Code Council Amendments to the plumbing code. The 3-part examination consists of Uniform Plumbing Code questions, a waste and vent pipe sizing drawing and a water pipe sizing drawing. Provided are Drainage Fixture Unit Values table 7-3, Water Supply Fixture Units table 6-5, Flushometer Fixture Units table 6-6, and Flushometer Fixture Units table 6-7. No other tables are provided. Please disregard any references to older codes. To get 2006 Uniform Plumbing Code books or Washington State Amendments, call 1-888-664-9515.
The Backflow Specialty examination will consist of questions relating to safety, regulatory, operation, and trouble shooting of backflow prevention assemblies.
Examination application information
Applications for examinations must be processed by the Tumwater office at least two (2) weeks prior to the examination date.
This allows adequate time for verification and notification by mail if application is accepted.
Mail applications to:
Department of Labor & Industries
Specialty Compliance Services Division
Plumber Certification Section
PO Box 44470
Olympia, WA 98504-4470
Application for Plumber Certification examination and Reciprocal Certification (281 KB PDF)
If you are unable to take the examination on the date scheduled, call the Tumwater office prior to the day of the exam and reschedule. If you do not reschedule or fail to show for the exam, you will forfeit the $133.00 examination fee and must submit another $133.00 fee to be scheduled.
If you wish to reschedule your examination or have any questions, please call 360-902-5207.
2009 Plumbing Examination Dates and Locations (154
KB PDF)
2010 Plumbing Examination Dates and Locations (158
KB PDF)
Reciprocal certification
Washington currently reciprocates journey-level certificates from Idahoand Montana. To qualify for a reciprocal certificate, you must:
- Have an active journey-level plumber certificate from your state of testing.
For more information:
Facts About State Certification for Plumbers. (316 KB PDF)
