"...The recent proposal from the Department of Energy is meant to
boost dishwasher efficiency by setting stricter limits on the amount
of water each dishwasher can use, among other changes. Under the plan,
washers could use only 3.1 gallons of water for a single load.

http://www.foxnews.com/politics/2015/07/20/federal-dishwasher-proposals-upset-appliance-industry-conservatives/v

https://tinyurl.com/nhsoupe