Title 27 - ALCOHOL, TOBACCO PRODUCTS, AND FIREARMS is composed of three volumes, parts 1–39, parts 40–399, and part 400 to end. The contents of these volumes represent all current regulations issued by the Alcohol and Tobacco Tax and Trade Bureau, Department of the Treasury, and the Bureau of Alcohol, Tobacco, Firearms, and Explosives, Department of Justice, as of April 1, Annually.