Is it that you have to be verified by August 1, or that you have to submit by August 1?
Yale's website, for example, says "E.D.P. applications to Yale must submit their AMCAS application by August 1, and the Yale Supplemental Application by August 31, 2007." I think they would have used "verified" if, in fact, you needed to be verified by August 1.
It may vary by school. Anyone know for sure?