As I have said on other boards, please refer to Schoolhouse Rock - it is a bill, not a law.
The original bill was to deal with female circumcisions. Then some rep from a small town decided to stick the amendment in regarding the female genitalia piercings. I daresay most of who voted didn't even read it, they were merely remembering the horrible testimony which prompted the original bill.
It won't pass, if for no other reason than it allows men to continue to get THEIR genitalia pierced