In response to the historic drought being experienced in California, the California Energy Commission has gone beyond WaterSense standards, mandating that new urinal installations use no more than a pint per flush and faucets max out at 1.2-GPM. The new requirements will take effect next year.

No other state has gone beyond WaterSense standards, writes Tracy Quinn of the Natural Resources Defense Council. In her blog, Quinn notes:

"According to the CEC, the new standards for kitchen and bathroom faucets, urinals, and toilets will reduce California water use by more than 100 billion gallons of water per year, once the current stock of products is turned over. To put that into perspective, we'll be saving three times the amount of water used by the City of San Francisco every year! The first year savings are expected to be around 10 billion gallons."

Quinn also points out the the CEC rule will prohibit stockpiling of non-conforming products in advance of the rule taking effect.