Abbreviation for Alcohol and Tobacco Tax and Trade Bureau. This US office has been in existence since the beginning of 2003 and emerged from the BATF (Bureau of Alcohol, Tobacco, Firearms and Explosives). Following the terrorist attacks on the World Trade Center on September 11, 2001, the Homeland Security Act came into force in 2002. In connection with this act, a division of responsibilities was made. The corresponding responsibilities and functions relating to alcohol and tobacco were removed from the BATF and assigned to the TTB. These include approving the design, conditions and designation of wine labels and packaging and, in part, wine advertising and trade; approving or rejecting official permits for new wineries; monitoring records and tracking production techniques, quantities, logistics and alcohol taxes; and approving or rejecting applications for new wine-growing regions in the United States. The authority is thus responsible for the US AVA (American Viticultural Area) appellation system. TTB is assigned to the Ministry of Finance, BATF remains assigned to the Ministry of Justice.