"Needs of the Navy" that is a key phrase. I served in the 70's, when I entered the Navy the draft kept enlistment in programs like Nuclear Propulsion fat with personnel. After the draft ended "nukes" were hard to come by. The difference was a wash-out attitude that dropped the bottom third of my "A" school class even if you had passing grades or removal from the program with two speeding tickets or being late to work twice in six months, then after the end of the draft it was...you smoked dope??...that's ok we forgive you just don't do it again. The Navy goes through peaks and valleys in enlistment all the time, if you want it, don't give up and make an earnest effort. Make sure that your recruiter is aware of your strong desire to enter the program as he is the one making the effort for the waiver. He will have to convince someone else who will be making a judgement call.