Using less water?
Did I miss something? The article only mentioned energy efficiency, and it looks to me, given the list in his memorandum (residential dishwashers, lamps, ranges and ovens, microwave ovens, commercial air conditioning equipment, commercial boilers and beverage vending machines), as though he's talking about electricity. The DW is the only thing on the list that uses water, and washing machines aren't even on the list.
Chuck