Plastic food-contact articles, including closures, must comply with FDA regulations under 21 CFR governing food-contact substances. While FDA does not typically require a separate import permit for closures, importers should maintain supplier documentation confirming that the materials meet applicable FDA food-contact standards. FDA may detain shipments if there is reason to believe the articles are not compliant, so having compliance records readily available expedites clearance.

This heading captures plastic packaging articles that do not fit more precisely defined categories—such as sacks and bags (a separate heading) or rigid containers. Items like plastic trays, dividers, blister-pack backing, and specialty fitments often land here when no more specific description applies. Importers with novel or hybrid packaging formats should request a CBP binding ruling to confirm classification before large-volume shipments.