Backflow Assembly Testers and Cross Connection Specialist Certification

The Cross Connection and Backflow Prevention program certifies Backflow Assembly Testers and Cross Connection Specialists in the State of Oregon.

All backflow prevention assembly testing in Oregon must be performed by Oregon Health Authority (OHA)-certified Backflow Assembly Tester. All community water systems in Oregon serving 300 or more service connections are required to contract with or employ an OHA-certified Cross Connection Specialist to oversee their cross connection program.