If you don't get accepted to NASS, didn't apply to NASS, or decide not to attend NASS, but still dream of attending USNA, don't despair. It won't wreck your chances of receiving an appointment. NASS is a great experience and, if you're able to do it financially, time-wise (with school and other obligations), etc., you definitely should. However, NASS is in part an opportunity for students to see what USNA is like and in part a recruiting tool. Thus, typically (not universally), USNA will not select more than one or two students from any one school to attend, no matter how qualilfied they are. USNA thus recognizes that many very well qualified candidates won't attend NASS. Some won't be offered a place, some will decline for various reasons (i.e., attending another SA's summer program, can't afford it). And some won't even apply for various reasons. Thus, USNA makes clear that not attending NASS won't hurt you in your application process. If you attend and do well, you may get a very slight "bump" in the admissions process. However, it is equivalent to being the child of military parent(s), being an Eagle Scout, being team captain, or a host of other things that are looked on favorably by USNA. No more, no less. So, if you were accepted, you should make every effort to attend -- for YOUR sake. But if it didn't happen for you, please don't believe that all is lost and your application is doomed. That truly is not the case.