NSF International, in cooperation with the Association of State Drinking Water Administrators (ASDWA), conducted a survey of US state drinking water agencies about their recognition and use of the following NSF / ANSI standards:

• NSF/ANSI 60: Drinking Water Treatment Chemicals - Health Effects
• NSF/ANSI 61: Drinking Water System Components - Health Effects
• NSF/ANSI 223: Conformity Assessment Requirements for Certification
• Bodies that Certify Products Pursuant to NSF/ANSI 60: Drinking Water
• Treatment Chemicals - Health Effects
• NSF/ANSI 372: Drinking Water System Components - Lead Content

The survey identified the US states currently with legislation, regulations or policies for each of these NSF / ANSI standards.

This document also includes frequently asked questions (FAQs) received by NSF from water utilities and municipalities.

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