Friday, December 8, 2023

Contractor Campus

Books & Classes for your Contractor's License

Oregon Water-Treatment Installer (WTI) License

The Water-Treatment Installer (WTI) License allows you to do the following work:

  • Connect potable water systems and indirect waste connections to:
    • Existing drain waste systems
    • Vent equipment

How to Get the Water-Treatment Installer (WTI) License in Oregon?

  1. Fill out the application form:
  2. Complete a work history document and fill out the experience verification form:
  3. Sign an applicant’s affidavit and choose the preferred examination location
  4. Mail or fax a sealed packet of all the previous documents to:
    Oregon Building Codes Division
    P.O. Box 14470
    Salem, OR 97309-0404
    Fax: 503-378-2322
  5. Schedule, pay, and take the 3 hour 52 question open book examination administered by the Building Codes Division
  6. Expect the license issued by the Building Codes Division via mail