Here's a link to 4472

http://www.govtrack.us/congress/bill.xpd?bill=h109-4472

but you'll have to have a copy of 2257 handy,

http://www4.law.cornell.edu/uscode/h...7----000-.html

as most of 4472 just references language in 2257. 4472 is one of the most poorly written bills I've ever seen, this is clearly language somebody just pasted in at the last minute.