These documents are currently being revised to incorporate the changes made during the 2024 Legislative Session. Please consult the Sections Affected Table for changes made during the 2024 Legislative Session.
Certification of backflow assembly testers and cross-connection control specialists.
(1) Backflow assembly testers and cross-connection control specialists must hold a valid certificate and must be certified as provided by rule as adopted under the authority of RCW
70A.120.050.
(2) Backflow assembly testers who maintain or repair backflow assemblies, devices, or air gaps inside a building are subject to certification under chapter
18.106 RCW.