Appellation of Origin
An appellation of origin is a geographic designation on a wine label that identifies where the grapes were grown, subject to TTB regulations requiring that a minimum percentage of grapes come from the named region.
In Plain English
An appellation of origin tells you where a wine's grapes come from. When a wine label says "Napa Valley" or "Willamette Valley," that is an appellation claim subject to federal rules about what percentage of grapes must actually come from that area. For American Viticultural Areas (AVAs), at least 85% of the grapes must come from the named region. For state appellations, the requirement is typically 75%. For county appellations, it is also 75%. These rules prevent a winery from buying cheap grapes from elsewhere and labeling the wine as if it came from a premium region. Appellations are important because geography significantly affects wine character — the climate, soil, and growing conditions of a region give wines their distinctive qualities.
Technical Detail
Appellation of origin requirements are specified in 27 CFR 4.25. American Viticultural Areas (AVAs) are formally defined wine-growing regions approved through TTB rulemaking, with boundaries based on geographic, climatic, and viticultural features. As of 2025, there are over 270 approved AVAs. For AVA appellations, 85% of the grapes must come from the named AVA. For state appellations, 75% (except California which requires 100% by state law). For county appellations, 75%. Multi-state or multi-county appellations require all components to be identified and all grapes from the named areas. The appellation interacts with vintage dating (95% from the stated vintage for AVA wines, 85% for other appellations) and varietal labeling (75% of the named variety for AVA wines). Foreign wine appellations are governed by the laws of the country of origin and TTB import regulations.
Why It Matters
Appellations directly affect wine pricing, marketing, and consumer perception. Wines from prestigious appellations command premium prices. For the wine industry, appellation rules drive vineyard investment decisions and shape regional wine economies. COLA filings showing new appellations or increased activity from specific regions indicate shifting production patterns. For compliance consultants, appellation rules are a frequent area of client advisory.
Related Terms
Frequently Asked Questions
What is the difference between an AVA and a state or county appellation?
An AVA (American Viticultural Area) is a formally defined wine-growing region approved by the TTB based on specific geographic and climatic characteristics. State and county appellations are based on political boundaries. AVAs have a higher grape percentage requirement (85% vs 75%) and may also require higher percentages for vintage and varietal claims.
Can a winery use an appellation if they are located outside that region?
Yes. The appellation refers to where the grapes were grown, not where the winery is located. A winery in one state can produce wine labeled with another state's appellation if the grapes come from that state and meet the percentage requirements.
How are new AVAs created?
New AVAs are established through a TTB rulemaking process. A petitioner submits evidence demonstrating that the proposed region has distinctive geographic, climatic, or viticultural characteristics that distinguish it from surrounding areas. The process includes public comment periods and can take several years.