Can I use a WaterSense labeled faucet accessory to meet the flow rate criteria contained in the specification? Does my faucet still need to be tested?
A lavatory faucet is considered to meet the flow rate requirement contained in the specification if it is equipped with a lavatory faucet accessory that meets the flow rate requirement. In this case, it is up to the discretion of the licensed certifying body to determine whether the entire faucet needs to be tested. EPA anticipates that in most cases, further testing may not be necessary. The licensed certifying body may still conduct a review and may require you to produce evidence that you are using a high-efficiency lavatory faucet accessory that meets the specification criteria. All high-efficiency lavatory faucets, regardless of whether the entire faucet is tested or just the faucet accessory, must be evaluated, certified, and listed by a licensed product certifying body in order to earn the WaterSense label and be listed on EPA’s Web registry of WaterSense labeled products.