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RESNET/ICC Water Rating Index Standard Approved by ANSI

Apr 21, 2020

The American National Standards Institute (ANSI) has announced that it has approved the RESNET/ICC Standard 850-2020.  The new ANSI standard sets the technical specifications for calculating the rating of a home’s water efficiency. The publication will soon be available through ICC’s online book store.

RESNET’s water rating system, HERSH2O®, is based upon the ANSI/RESNET/ICC Standard 850-2020.  The national roll-out of HERSH2O  will be announced soon. Look forward to a special announcement.  For more information go to RESNET HERSH2O

The RESNET Standard Development Committee (SDC) 1100 was responsible for the development of the standard. The SDC was chaired by Jacob Atalla of KB Home. Jonah Schein, WaterSense Program Manager, Environmental Protection Agency served as the vice-chair.  Members of the SDC are:

• Mary Ann Dickinson, Executive Director, Alliance for Water Efficiency

• Philip Fairey, Deputy Director, Florida Solar Energy Center

• Ed Osann, Team Leader – Water Use Efficiency, Natural Resources Defense Council

• David Sauter, Building Code Official, Hatfield Township, Pennsylvania

• Matt Graves, Vice President of Production, Drees Homes

• Dave Walls, International Code Council 

RESNET Executive Director Steve Baden commented, “RESNET owes a debt of gratitude to the members of the SDC 1100 and the countless hours that energy efficiency and water efficiency professionals volunteered on the RESNET working groups that developed the draft standard.”