Napa Valley has become the first viticulture area to be awarded a US certification mark, according to trade group Napa Valley Vintners (NVV).

Napa Valley has become the first viticulture area to be awarded a US certification mark, according to trade group Napa Valley Vintners (NVV).
Napa Valley has become the first viticulture area to be awarded a US certification mark, according to trade group Napa Valley Vintners (NVV).