This publication was prepared by the Firearms and Explosives Imports Branch (FEIB), Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF) to assist Importers and other Firearms Industry Members in identifying firearms, ammunition, and defense articles that may be imported into the United States and to further clarify and facilitate the import process. The FEIB Guidebook was developed to provide guidance in the importation process through the proper recognition and correct use of required forms, regulatory policies, and prescribed import procedures. This guide presents a comprehensive overview of the importation process and provides both relevant and definitive explanations of procedural functions by outlining the existing imports controls including the Arms Export Control Act (AECA), the National Firearms Act (NFA) and the Gun Control Act (GCA).