Lead Content Compliance

As of January 4, 2014, the Safe Drinking Water Act (SDWA) requires drinking water products sold or installed for use in public water systems, as well as plumbing in facilities, to meet a weighted average of not more than 0.25 percent lead.


Drinking Water System Components (Relevant standard: NSF/ANSI/CAN 61, including Annex G)

Purpose/scope: Drinking water components are tested to NSF/ANSI/CAN Standard 61, which includes a leachate test to evaluate products for all contaminants of health effects concern, not just lead. NSF/ANSI/CAN 61 also certifies lead content via Annex G and NSF/ANSI 372.

NSF/ANSI 14 and 24

Plumbing System Components (Relevant standards: NSF/ANSI 14 and 24, ASTM, ASME, CSA, IAPMO, ASSE and AWWA)

Purpose/scope: NSF/ANSI Standard 14 covers potable and non-potable water products. Potable water products are evaluated to the requirements of NSF/ANSI/CAN 61. Products are also tested to verify compliance with the performance standard. All potable water products certified by NSF under this program are lead-free[1].

1The term lead-free is defined as having a weighted average lead content of the wetted surfaces not exceeding 0.25 percent consistent with state and federal law.

NSF/ANSI 42, 53, 55, 58 and 62

Drinking Water Treatment Units (Relevant standards: NSF/ANSI 42, 44, 53, 55, 58 and 62)

Purpose/scope: NSF verifies manufacturer performance claims and material safety of drinking water treatment units (DWTUs). Products covered include: water filters, water softeners, reverse osmosis systems, distillers, UV disinfection, etc.


This standard establishes a standardized methodology for the determination and verification of product compliance with a maximum weighted average lead content requirement of 0.25 percent as required by the U.S. Safe Drinking Water Act. Currently eight states reported requirements for compliance with NSF/ANSI 372 and two additional states have regulations or legislation requiring certification or conformance to a 0.25 percent weighted average lead content for products conveying or dispensing drinking water.

Ready to Begin the Process?

Contact us with questions or to receive a quote.

NSF’s worldwide recognition is a key asset when choosing a certification body. The NSF team always provides an exceptional customer service. The level of accuracy of the NSF certification gives to our clients confidence and trust in our products.
Pablo Olalla López
Technical Manager, Pinturas Villada SKC S.A