FinCEN's link is to the officially codified version of the regulation, which is was last updated in July, 2008. The e-CFR version, linked by Retread, is current.
Unfortunately, linking to the official, codified regulation isn't much help. Can you even imagine looking at the official codified version of Regulation Z for current information?
John S. Burnett
Fighting for Compliance since 1976
Bankers' Threads User #8