“What does your green dollar buy you in 2013? A whole lot, as it turns out….
…Though federal minimums are essentially invisible to the average consumer—every product sold meets the minimums, so consumers never really have to know what those minimums are—their results in driving up efficiency have been impressive…”
To read the full article, see
Keough, Ben. April 23, 2013. http://www.dishwashersinfo.com/features/what-you-need-to-know-about-appliance-efficiency