Backflow tester planner
Pick a state to see who may test a backflow assembly and the official program page.
Choose a state to see the rules we verified and official links. Or search your city, county or ZIP.
How to use it
Start with the state, then ask the water system that serves the building. A state certification does not override a utility that requires its own registration.
If the page does not name a fee or a roster, we did not find one on the official source. Call the agency or the utility before you pay for a test.
The planner is a reading aid. It repeats the agency, the credential or court, and the official link stored for that state. It does not file a form, check a live license, or decide a dispute. Open the state pages for the longer explanation and the source links, or search a city or ZIP to find the state guide.
If a field says it was not published, we did not verify that number or roster. Use the official page named on the state guide, and send us a correction if the agency has posted an update.
What this tool will not do
This site is general information, not engineering, plumbing, or legal advice. Test rules change, and a water utility may be stricter than the state page. Confirm the credential with the official program and the utility before you hire.