TTB Wine Labeling Percentages: Variety, Vintage, and Appellation Rules

The existing shorthand of '80/80/100' often cited in wine education is factually inaccurate. The TTB regulations in 27 CFR Part 4 establish a tiered system of minimum thresholds, not a single uniform percentage. The varietal rule sits at 75%, but vintage and appellation rules vary depending on the geographic tier of the label claim. A wine labeled with a specific AVA is held to higher standards than one bearing only a state name, reflecting the principle that greater geographic specificity demands greater compositional integrity.

• Variety (27 CFR 4.23): Minimum 75% of named grape variety, all grown in the labeled appellation; exceptions allow 51% for Vitis labrusca varieties with a qualifying statement
• Vintage with AVA appellation (27 CFR 4.27(a)(1)): Minimum 95% of wine derived from grapes harvested in the labeled calendar year
• Vintage with state or county appellation (27 CFR 4.27(a)(2)): Minimum 85% of wine derived from grapes harvested in the labeled calendar year
• AVA appellation sourcing (27 CFR 4.25): Minimum 85% of wine derived from grapes grown within the viticultural area's defined boundaries

The appellation sourcing rules under 27 CFR 4.25 operate as a tiered framework tied directly to the specificity of the geographic claim. Broader designations like a country or state carry a lower threshold, while more precise designations like an AVA demand a higher one. This structure encourages producers to make specific geographic claims only when they can genuinely support them, protecting both consumer confidence in AVA designations and the integrity of emerging wine regions.

• State or county appellations: At least 75% of the wine must originate from the named state or county, per 27 CFR 4.25(b)(1)
• American Viticultural Area (AVA) appellations: At least 85% of the wine must originate from within the AVA's approved boundaries, per 27 CFR 4.25(e)(3)
• Multicounty appellations (two to three counties, same state): 100% of the fruit must come from the listed counties, with per-county percentages disclosed on the label, per 27 CFR 4.25(c)
• Multistate appellations: 100% of the fruit must be sourced from the named states, with per-state percentages shown on the label, per 27 CFR 4.25(d)

The vintage rules under 27 CFR 4.27 are more nuanced than commonly taught. The 95% threshold applies specifically to wines carrying an AVA or its foreign equivalent as the appellation of origin. A wine labeled with a state or county appellation may use a vintage date at the lower 85% threshold. In both cases, a vintage date requires an appellation of origin to appear on the label: vintage dating with only a country-level appellation is not permitted for domestic wines. These rules apply equally to imported wines, which must also conform to vintage regulations of their country of origin.

• 95% vintage threshold: Applies to all wines bearing an AVA (e.g., Napa Valley, Willamette Valley, Stags Leap District) or foreign viticultural area equivalent as the appellation
• 85% vintage threshold: Applies to wines bearing a state (e.g., Oregon, Washington) or county (e.g., Sonoma County) appellation of origin
• Vintage date requires an appellation: Under 27 CFR 4.27(a), a vintage date may only appear if the label also carries an appellation of origin smaller than a country
• Imported wines: May bear a vintage date if they comply with 27 CFR 4.27(a) and are entitled to carry a vintage date under their country of origin's laws, per 27 CFR 4.27(c)

The varietal designation rule under 27 CFR 4.23(b) sets a 75% minimum for single-variety labeling, not the commonly cited 80%. A wine labeled 'Cabernet Sauvignon' must therefore contain at least 75% of that variety, all grown in the labeled appellation area. When two or more varieties are listed as the type designation, all grapes in the wine must be of the labeled varieties and each variety's percentage must be shown on the label, totaling 100%. The TTB maintains a list of over 300 approved variety names in 27 CFR subpart J; any new variety requires a formal petition for approval.

• Single variety: Minimum 75% of named grape required (27 CFR 4.23(b)); the qualifying percentage must be grown in the labeled appellation
• Vitis labrusca exception: Varieties such as Concord may use varietal labeling at 51% with a qualifying statement, per 27 CFR 4.23(c)(1)
• Multi-variety labeling: All grapes must be of the listed varieties; percentage of each must appear on the label with a tolerance of plus or minus 2%, per 27 CFR 4.23(d)
• Approved variety names: Effective February 7, 1996, only TTB-approved grape variety names may be used as type designations for American wines, per 27 CFR 4.23(e)

Before any wine above 7% alcohol by volume can be sold in interstate commerce in the United States, its label must carry a Certificate of Label Approval (COLA) from the TTB, or a COLA exemption. This applies equally to domestic producers and importers. The COLA process is managed through the TTB's online COLAs Online system, which allows registered industry members to submit and track applications electronically. Producers must maintain complete cellar records substantiating any varietal, vintage, or appellation claims on approved labels, and those records must be available for TTB audit.

• COLA requirement: Required for all wine at 7% ABV or above intended for interstate commerce or import; governed by the Federal Alcohol Administration Act and 27 CFR Part 4
• Application process: Submitted via TTB's COLAs Online system (TTB Form 5100.31) or by paper; the TTB's Alcohol Labeling and Formulation Division (ALFD) reviews each submission
• Recordkeeping: Producers must retain records substantiating varietal designations, vintage dates, and appellation claims sufficient for TTB audit, per 27 CFR 24.314
• Allowable revisions: Certain changes, such as updating a vintage date, may be made to an approved label without filing for a new COLA, per TTB's published allowable revisions guidance

The TTB's varietal, vintage, and appellation percentage rules apply to both domestic and imported wines. An importer must obtain a COLA before removing a wine at 7% ABV or above from customs custody for commercial sale. Imported wines bearing varietal or vintage claims must satisfy the same 27 CFR 4.23 and 4.27 percentage thresholds as domestic wines, in addition to complying with their country of origin's labeling regulations. Foreign appellations of origin are recognized under 27 CFR 4.25, but the wine must also conform to the laws of the producing country governing composition and designation.

• Equal application: Per TTB compliance guidance, 27 CFR 4.23, 4.25, and 4.27 apply to both domestic and imported wines without distinction
• Importer COLA obligation: Importers must obtain a TTB COLA for each unique product label before releasing wine from customs custody, per the FAA Act and 27 CFR Part 27
• Foreign appellation recognition: Imported wine labeled with a foreign appellation of origin must conform to the requirements of the foreign laws governing composition, method of production, and designation, per 27 CFR 4.25(e)(3)(iii)
• Vintage compliance for imports: Imported wine may bear a vintage date only if it also meets the vintage date regulations of its country of origin and satisfies 27 CFR 4.27's percentage thresholds, per 27 CFR 4.27(c)