Definitions for "American Viticultural Area"
(USA) Abbreviated to AVA, this term describes a geographically defined region for growing grapes.
Often abbreviated AVA. This is the set of US laws which regulate the use of place names on wine labels. Unlike similar laws in Europe, there are no restrictions on grape variety, yield or wine making practices. AVAs seem to be created more as a response to politics, then as a form of consumer protection. There are over 140 AVAs at this time.
A delimited, geographical grape-growing area that has officially been given appellation status by the Bureau of Alcohol, Tobacco and Firearms. Two examples are Napa Valley and Sonoma Valley.