Washington Plumbing Contractors
| Requirements: |
- Plumbing must be conducted through registered contractors.
- Experience requirements are 6,000 hours for Residential Specialty and 8,000 hours, of which 4,000 must be commercial, for Journeyman.
- 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.
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| Services: |
Allows the installation, alteration, or repair of potable water, liquid waste, and medical gas systems within a building in the state of Washington you must be certified by the Department of Labor and Industries. The Department issues trainee, journeyman, and specialty/residential plumber certificates, and medical gas piping installer endorsements.
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| Applications: |
$122 application fee and a $97.70 (2) year renewal fee.
Department of Labor & Industries
Specialty Compliance Services Division
PO Box 44400
Olympia, WA 98504-4400
(360)902-5207
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| Reciprocity: |
Reciprocal agreements exist with Oregon and Montana.
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| Continuing Education: |
All journeyman and residential specialty plumbers must obtain 16 hours of continuing education within a two-year renewal cycle. Plumber trainees must complete 8 of the required 16 hours every year. All of these required courses must be taken within the renewal cycle. |
| Exam: |
- Minimum score of 70%
- The 3-part examination consists of Uniform Plumbing Code questions, a waste and vent pipe sizing drawing and a water pipe sizing drawing.
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| References: |
These books are available for purchase from our online contractor’s bookstore or by calling our office at 1-800-952-0910.
The following references ARE allowed in the testing center:
- 2006 Uniform Plumbing Code
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| Training: |
Please check back later for review and training for this license.
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