Denominazione di Origine Controllata e Garantita (D.O.C.G.) : The Italian system for defining wine regions and wine names. D.O.C.G. wines are submitted to tougher requirements than those labeled D.O.C. (Denominazione di Origine Controllata), including tasting approval.
Appellation: A named geographical area (may be as large as an entire region or as small as a vineyard) from which wine may be labeled and marketed as having come from. Regulations vary widely from country to country and appellation to appellation, but typically require that appellation-labeled wine be made entirely or mostly from grapes grown within the appellation's boundaries. Some appellations also regulate which grape varieties are permitted, how they are grown and harvested and how the wine is made. Prominent examples of appellation certifications around the world include France's Appellation d'Origine Contrôlée (AOC), Italy's Denominazione di Origine Controllata (DOC) and the United States' American Viticultural Area (AVA).