I'm a DV2013 winner and entering the US in a few weeks. I've looked at the selective service website and it seems you need a social security number to apply (which I won't receive for a few weeks after entering the US). Are there any other male DV winners aged 18-25 who have been through selective service registration? I'm assuming I just wait until I have my social security number then apply but can't seem to find an answer anywhere.