You probably received a letter stating that your backflow preventer or preventers are out of date and need certification. You have come to the right place. Kern Plumbing & Backflow Services, Inc. manages tests on behalf of the State of California.
On this website, you will find a list of all the certified testers that you can use. You will also find the test results form that your tester must submit to us upon completion. Use the navigation bar at the top of the website to find what you need most quickly.