US FDA Food Contact Substances (FCS) requirements
Packaging or equipment that contacts food may be subject to FDA regulation if their chemical components are deemed by FDA to be "indirect food additives", also known as "Food Contact Substances".
The determination of how a particular food contact substance is regulated by FDA depends on its chemical composition.
Learn about the specifications and limitations published and enforced by FDA concerning your products' chemical components.
FDA 21 CFR 177.1520 [Download]