The Alcohol and Tobacco Tax and Trade Bureau (TTB) establishes the approximately 58,000-acre "Tehachapi Mountains" viticultural area in Kern County, California. The Tehachapi Mountains viticultural area is not located within, nor does it contain, any established viticultural area. TTB designates viticultural areas to allow vintners to better describe the origin of their wines and to allow consumers to better identify wines they may purchase.