Can anyone tell me if this is still the law for 18 year old males? I remember when I was getting ready to turn 18 I got a postcard in the mail and had to fill it out and mail it back. I know my son has not received a postcard, nor has he received any sort of reminder. I mean, they used to scare the hell out of you that they could throw you in jail if you didn't register with SS but now it seems way more like a law on the books that no one, including the Federal Gov't really care about.