Oregon (OR) Plumbing Code & Permit Rules
Oregon Specialty Plumbing Code (based on UPC) (2021) · Updated 2026-05-31
Data: State plumbing boards, ICC, IAPMO, EPA Last verified: 2026-05-31
Oregon has some of the strictest plumbing regulations in the country. A licensed plumber is required for most work, annual backflow testing is mandatory, and seismic strapping is required for water heaters. Homeowners should budget for professional plumbing services and compliance costs.
Plumbing Code
Oregon follows the Oregon Specialty Plumbing Code (based on UPC) (2021 edition).
Key Regulations
| Regulation | Status | Details |
|---|---|---|
| Plumbing Code | UPC (2021) | Oregon Specialty Plumbing Code (based on UPC) |
| Homeowner DIY | Not allowed | CCB-licensed contractor required for most work |
| Water Heater Permit | Required | Seismic strapping required in seismic hazard zones; CCB-licensed contractor required |
| Backflow Testing | Annual, required | All assemblies; once per calendar year |
| Seismic Strapping | Required | Water heater restraint |
DIY Plumbing in Oregon
Oregon requires a licensed plumber for most plumbing work. CCB-licensed contractor required for most work
While this increases costs, it ensures:
- Work meets current code requirements
- Proper permitting and inspection
- Warranty and liability protection
- Safe connections to water and sewer systems
Backflow Prevention
Oregon requires annual backflow testing to protect the public water supply from contamination. Testing must be performed by a Certified tester.
Non-compliance penalty: Water service may be shut off if testing is not completed on schedule.
Water Conservation Requirements
Oregon follows federal water conservation standards. Federal minimums apply
Lead Service Line Replacement
Oregon has an active lead service line replacement program. Following EPA Lead and Copper Rule 2021
Data Sources
- Oregon state plumbing board and licensing agency
- International Code Council (ICC)
- IAPMO
- EPA Safe Drinking Water Act
Updated as regulations change.
Need a licensed plumber in Oregon?
Plumbing regulations vary by city. Connect with a licensed professional who knows your local code requirements.
Find a Licensed Plumber →Frequently Asked Questions
What plumbing code does Oregon follow?
Oregon follows the Oregon Specialty Plumbing Code (based on UPC) (2021 edition).
Can I do my own plumbing work in Oregon?
No, Oregon requires a licensed plumber for most plumbing work.
Do I need a permit to replace a water heater in Oregon?
Yes, Oregon requires a permit for water heater replacement. A licensed plumber is required for the installation.
Is backflow testing required in Oregon?
Yes, Oregon requires annual backflow testing.
Does Oregon require seismic strapping for water heaters?
Yes, Oregon requires seismic strapping for water heaters. This typically involves two metal straps securing the water heater to the wall to prevent toppling during an earthquake.