I was sure John would come and say something negative... Why that?
Equivalent to, not that it has 7.5 cu ft.
As DOE doesn't have an specific standard to test HATL semi-automatic washers and as capacity is usually described in cu ft, the alternative found was using "equivalent capacity". Personally I don't agree with that idea of "equivalent to" but that's not me who made this decision. We're actually lucky to have them "creating an alternative testing" instead of just saying "it's too different from the average washers we have on the market, we won't even consider it, you can't make it at all"
One thing people seem to forget is, here in the USA, DOE says something, you do it, you don't ask, you don't argue, you don't debate or discuss. If they ask me to hang a watermelon on my neck, I'll do it with a huge smile (even dying inside) because it just needs one of those "lovely individuals" unhappy to wipe the company off the market.