21 CFR parts 174-178: Authorization for substances used in FCM can be acquired formally through petitions (21 CFR parts 174-178) and more recently a Food Contact Notification system.
http://www.ecfr.gov/cgi-bin/text-idx?SID=45137e6384476177ba5a6fc4d68cb640&c=ecfr&tpl=/ecfrbrowse/Title21/21cfrv3_02.tpl [Online]
