Oregon Backflow Testing Requirements

Oregon Health Authority Requirements

Annual testing is required for all backflow prevention assemblies (OAR 333-061).

Testing must be completed by an OHA-certified Backflow Assembly Tester (BAT).

Tests are required:

After installation of a new device

After relocation or repair of an existing device

Annually, as part of ongoing compliance

Property owners are responsible for ensuring devices are tested on time.

Water purveyors may disconnect service if compliance is not met.

Why Annual Backflow Testing is Important

Backflow can allow contaminants to enter the public water supply, creating health risks for the community. Oregon’s program ensures safe, clean drinking water by requiring regular testing. Staying compliant protects your property, your neighbors, and the entire public system.

This page summarizes requirements from the Oregon Health Authority (OHA). For official regulations, see OAR 333-061.

EPA Safe Drinking Water Act

Learn how national regulations guide state backflow prevention standards.

Cross-Connection Control Programs

See how cross-connection rules protect public water from contamination.

State Regulations

Understand Oregon’s role in shaping regional backflow compliance programs.

Washington State Programs

Washington’s Department of Health enforces backflow testing and certification through its Cross-Connection Control program.

California Backflow Testing

California enforces statewide testing under Title 17 of its public health regulations, with strict requirements for certified testers.

Florida Backflow Testing

Florida requires annual backflow testing for commercial and residential properties, with enforcement managed at the utility level.

Portland Backflow Testing

Explore city-specific backflow testing resources and compliance information.