
Denominazione di origine controllata (DOC) is a system of quality assurance for Italian wines. It is modeled after France's appellation system (AOC). It was established in 1963 and went into effect in 1966.
DOCs are defined by a variety of standards including the geographic area of wine production, the varieties of grapes used in the area, the minimun alcohol content and specifications for aging. In 1990, new standards were introduced for appearance, color, bouquet and flavor. These new standards brought about a more elite level of wine classification known as Denominazione di origine controllata e garantita.
For a wine to be labelled DOCG, it must pass a blind taste test. These wines are also subjected to chemical analysis to determine levels of acidity and residual sugar. Wines that qualify for DOCG status are secured with a government seal.
For more information on Italian wine appellations, click here.