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Oregon.gov Licenses, Permits and Registrations
Department of Consumer & Business Services
Detailed Information for: Plumber, Water Treatment Installer (WTI)
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Updated: 4/14/2008
Description: Water treatment installers are authorized to make connections to potable water systems and indirect waste connections to existing drain waste and vent systems.


Similar Keywords: plumbing, plumbers
Statutes, Rules, Ordinances: ORS 447
OAR 918-690
Duration: 3 years or less, depending on issue date.
Fees - application, exam, etc.:  $100.00 application fee. This fee includes your first license cycle when you pass the exam.
Responsible Agency: BCD - Plumbing
Examination Information: Written exam:
  • 3 hour time limit for a 52 question, open book exam
  • All questions are multiple choice or True/False
  • Minimum score to pass the exam - 75 percent.

Examination Procedure
Continuing Ed Requirements: None
Prerequisites: (1) Minimum age: 18
(2) Must have a high school diplomat or GED
(3) At least 18 months of legally obtained water treatment installation experience obtained by satisfactory completion of a plumbing apprentice program in Oregon or completion of 3,000 hours of verifiable work experience.
Application Form: Plumbing License Examination/Reciprocity Application
Service Links:  Apply Online
 Renew Online
 Application - PDF
 Application - Word
 BCD Main License Search
 Name Change Information
 Change of Address
 Duplicate License Request
contact Agency Contact Information
Required Documentation:
  • Complete application
  • a copy of high school diploma or GED
  • a copy of a certificate of completion of an Oregon plumbing apprentice program.

  Agency Information
Please refer to the Agency Website for further details and additional information.
Agency Name: BCD - Plumbing
E-mail Address: BCD.License@state.or.us
Phone: 503-373-1268
Mail Address: DCBS - Building Codes Division
PO BOX 14470
Salem, OR 97309 - 0404
Website Information: http://www.bcd.oregon.gov/programs/plumbing.html

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