text: In 1908, AWWA began developing industry standards for products, processes and best practices. The AWWA Standards Program is recognized internationally as a source for scientific and management reference resources for the water community. Currently, there are over 150 AWWA Standards covering filtration materials, treatment chemicals, disinfection practices, meters, valves, utility management practices, storage tanks, pumps, and ductile iron, steel, concrete, asbestos-cement, and plastic pipe and fittings.  Standing committees periodically review and update the standards as required.
  In May 1985, the United States Environmental Protection Agency entered into a cooperative agreement with a consortium led by NSF International to develop voluntary third-party consensus standards and a certification program for all direct and indirect drinking water additives. Other members of the consortium include AWWA. The consortium is responsible for the cooperative effort of manufacturers, regulators, product users and other interested parties that develop and maintain the NSF standards.