Standard Development
NSF is accredited by the American National Standards Institute to develop American National Standards. NSF standards are developed, maintained and revised by the committee ballot system, similar to that used by American National Standards Institute (ANSI) and ASTM. The committees consist of representatives of groups affected by the scope of the standard such as industry representatives, public health/regulatory officials, users/consumer representatives and other relevant interest groups. For instance, for Standard 61, Drinking Water Systems Components - Health Effects, the committee consists of manufacturers of plumbing parts, material manufacturers (plastics, metals, etc.), toxicologists, state regulatory officials, etc. Any updates to standards related to testing requirements are vetted through lab testing, and balloting ensures majority rule.
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