Who is qualified to field test all backflow prevention devices?

• A. Licensed Plumber
• B. Plumbing Inspector
• C. Certified Backflow Tester
• D. Civil Engineer

Answer: (C)

Field testing backflow prevention devices is a specialized task that requires an approved certification to ensure testing is done correctly and the results are properly reported. A Certified Backflow Tester is trained to use the required test equipment, follow standardized procedures for different device types (such as reduced-pressure assemblies and double-checks), and prepare the official test reports that are typically submitted to the water supplier or authority. This credential ensures consistency and regulatory compliance across field tests.

A licensed plumber can install and repair backflow devices, but the certification to perform formal field tests on all devices isn’t automatically granted by plumbing license alone. A plumbing inspector focuses on verifying that installations meet code during inspections, not on conducting the formal field tests and submitting reports for each device. A civil engineer generally isn’t responsible for testing backflow devices in the field. Therefore, the person qualified to field test all backflow prevention devices is the certified backflow tester.