The Office of Administrative Law has approved the direct potable reuse regulations that were adopted by the State Water Resources Control Board on Dec. 19, 2023, a major milestone in diversifying California’s water supply while maintaining its safety, quality and reliability. As approved, the regulations address a number of issues identified in a September comment letter from a coalition led by WateReuse California that includes ACWA. The regulations establish criteria for the introduction of recycled water either directly into a public water system or into a raw water supply immediately upstream of a water treatment plant. In December, State Water Board members voted unanimously to adopt the regulations, also directing staff to provide an update on implementation of the regulations in approximately a year.