California State Water Board Formally Recognizes ASSE 5110 Certification for Backflow Testers
The California State Water Resources Control Board, Division of Drinking Water, has officially recognized the ASSE 5110 certification program as meeting the requirements outlined in Section 3.4.1 of the state’s Cross-Connection Control Policy Handbook.
All California jurisdictions may now officially accept ASSE 5110 certification for backflow prevention testers. Verified by the SWRCB, the ASSE 5110 program satisfies all certification requirements of the Cross-Connection Control Policy Handbook. Certified professionals facing any local resistance to ASSE 5110 acceptance are encouraged to contact ASSE for support and documentation.
In addition, ASSE International is working with the SWRCB to pursue recognition of its ASSE 5120 Cross-Connection Control Surveyor certification. Updates on that effort will be announced as they become available. Individuals, jurisdictions or agencies interested in obtaining the official SWRCB approval letter or learning more about the certification can visit www.asse-plumbing.org.

