American Viticultural Area - Requirements

Requirements

Current regulations impose the following additional requirements on an AVA:

• Evidence that the name of the proposed new AVA is locally or nationally known as referring to the area;
• Historical or current evidence that the boundaries are legitimate;
• Evidence that growing conditions such as climate, soil, elevation, and physical features are distinctive;

Petitioners are required to provide such information when applying for a new AVA, and are also required to use USGS maps to both describe (using terms from the map) and depict the boundaries.

Once an AVA is established, at least 85% of the grapes used to make a wine must be grown in the specified area if an AVA is referenced on its label.

State or county boundaries — such as for Oregon or Sonoma County — are not AVAs, even though they are used to identify the source of a wine. AVAs are reserved for situations where a geographically defined area has been using the name and it has come to be identified with that area.

A vineyard may be in more than one AVA. For example, the Santa Clara Valley AVA and Livermore Valley AVAs are located within the territory of the San Francisco Bay AVA, which is itself located within the Central Coast AVA.