50 USC § 404n–2 - Terrorist Identification Classification System USC-prelim US Code Notes Updates Authorities (CFR) This preliminary release may be subject to further revision before it is released again as a final version. As with other online versions of the Code, the U.S. Code Classification Tables should be consulted for the latest laws affecting the Code. Those using the USCPrelim should verify the text against the printed slip laws available from GPO (Government Printing Office), the law