The California law AB 1953, a.k.a. the lead-free rule, will also require drinking water treatment units comply with its lead-free definition effective Jan. 1, 2010.

The California Department of Public Health is currently writing a guidance memo that states drinking water treatment units must comply with the law’s lead-free definition, but that certification for the drinking water treatment units is optional. The memo is expected out sometime in late October.

The Water Quality Association says certification is one way to show product compliance. Another option is to have test reports or a complete wetted-parts list that shows all components to be in compliance (i.e., all components certified as compliant with AB 1953 and SB 1334).