The collateral consequences of a conviction are largely unrecognized even by those who participate in the criminal justice system. In this article, I detail some aspects of three of those consequences: (1) the creation by New York laws of unwaivable economic obligations; (2) the enhancement of federal sentences based on prior criminal convictions adjudicated in New York State; and, (3) the registration obligations and restrictions on the behavior of those convicted of sex-related crimes imposed by New York law.