Because of concerns about the leaching of lead and other impurities into drinking water, all kitchen and bathroom faucets sold in the U.S. are required to meet the lead leaching requirements of American National Standard NSF/ANSI 61. Certification to this standard is usually noted on the product packaging as well as on the actual product. If you don’t see a reference to NSF/ANSI 61 certification on the product or packaging, the faucet may not be intended for drinking water use.
Avoid drinking water from outdoor spigots, laundry tub faucets, bathtub spigots and utility sinks. Because these products are not intended for dispensing drinking water, they are not required to meet the same material safety standards as kitchen and bathroom faucets.
For a list of NSF certified faucets, you may visit NSF Certified Faucets Listings.