Packaging for confections is regulated by the U.S. Food and Drug Administration (FDA) and is subject to the same laws and regulations as other food. The FDA regulatory status of the finished confectionary package is based on ensuring that each individual component of the packaging has a suitable FDA status for its intended use. FDA did issue a guidance (found here) that cautioned candy manufacturers not to use lead-based ink on candy wrappers, although, that guidance was last updated in 2006. 
 
In addition to federal requirements for food packaging, it is important to consider whether any U.S. state law requirements regarding the composition and/or labeling of packaging for confectionary apply to your products. We suggest that you consult legal counsel to help determine your specific U.S. legal and regulatory obligations for your product.