Did you get an e-mail response saying your USNA NASS application has been received? In that e-mail they give you an end date for notifications. Last year's e-mail said notifications would be sent by mail no later than May 1st. So I assume this years notifications would be roughly the same. My DS received his notification in mid March last year. So if you haven't received a "no" yet, then you are still in the running. If you don't get NASS, don't let it stop you from continuing the application process. My DS was rejected for NASS, but received an LOA and appointment in December. He was pretty discouraged by not getting into NASS, but in the long run it didn't impact his appointment.