Wine law in the context of "Cooking wine"

The classification of wine is based on various criteria including place of origin or appellation, vinification method and style, sweetness and vintage, and the grape variety or varieties used. Practices vary in different countries and regions of origin, and many practices have varied over time. Some classifications enjoy official protection by being part of the wine law in their country of origin, while others have been created by, for example, growers' organizations without such protection.