The Hydraulic Institute (HI) and its Members have worked closely with the Department of Energy (DOE) throughout the rule-making process for the Energy Conservation Standard on Commercials Industrial Pumps.

Source:: http://www.wateronline.com/doc/pump-energy-index-pei-calculation-tool-available-pump-industry-0001?atc~c=771+s=773+r=001+l=a