Backflow prevention assemblies must be tested on an annual basis by an individual possessing a current backflow assembly tester certification which is approved in the jurisdiction within which the backflow preventer is installed.

The following agencies offer backflow tester certifications which are accepted by Water Purveyors within San Diego County. Check with your water district to learn which certification or certifications are approved there.


American Backflow Prevention Association


American Society of Sanitary Engineers


American Water Works Association


The following regional and local organizations make education available to current and prospective Backflow Testers and Cross Connection Control professionals.


American Water Works Association


Cuyamaca College


International Association of Plumbing and Mechanical Officals (IAPMO)


Palomar College


USC Foundation for Cross-Connection Control and Hydraulic Research