Geographical Indications & National Systems

Geographical Indications & National Systems

A Geographical Indication (GI) is a legal guarantee that a wine's grapes came from a specific, defined place — and, in most cases, that the wine was made according to rules set for that place. A GI on a label is a promise about origin and, often, about production method, permitted grape varieties, and maximum yields. Wines that carry a GI are described as quality wine; wines that carry no GI at all are generic wine, made from grapes (and sometimes finished wine) that can be sourced from a wide area, blended freely, and produced under far fewer restrictions.

The EU's Two-Tier System: PDO and PGI

Every EU wine-producing country uses the same two-tier framework, even though each country also layers its own traditional national names onto the two tiers.

PDO wines sit at the top of the quality pyramid because the rules are tightest and the area is smallest; PGI wines give the winemaker more freedom — which variety to plant, how much to produce — while still guaranteeing a broad regional origin.

Country by Country: National Names for PDO and PGI

Each country layers its own traditional wording onto the EU's PDO/PGI structure:

• France — PDO = Appellation d'Origine Contrôlée/Protégée (AOC/AOP); PGI = Indication Géographique Protégée (IGP); wine without a GI is labelled Vin de France.
• Italy — PDO = Denominazione di Origine Controllata e Garantita (DOCG), the top level, plus Denominazione di Origine Controllata (DOC); PGI = Indicazione Geografica Tipica (IGT); wine without a GI is Vino d'Italia.
• Spain — PDO = Denominación de Origen Calificada (DOCa), reserved for a handful of top-performing regions, plus Denominación de Origen (DO), the standard PDO level; PGI = Vino de la Tierra (VdlT); wine without a GI is Vino de España.
• Germany — PDO wine splits into Qualitätswein (quality wine from one of Germany's 13 designated regions) and Prädikatswein (quality wine with distinction, graded by ripeness — covered in the next section); PGI = Landwein; wine without a GI is Deutscher Wein.

Notice the pattern: DOCG sits above DOC in Italy, and DOCa sits above DO in Spain, just as AOC/AOP sits above IGP in France. In every case, the top PDO tier is the smallest, strictest, and most tightly policed category — as the geography narrows, the rules tighten, though "quality" here means "closer regulation," not automatically "better tasting."

Outside the EU: Labelling by Region or Variety

Countries outside the EU run their own GI systems, but the underlying idea is the same: a named, legally defined area whose wines must meet minimum sourcing rules. The USA uses American Viticultural Areas (AVAs) — a wine labelled with an AVA name (e.g., Napa Valley) must contain at least 85% of grapes grown there. Australia runs a Geographical Indications system through its Label Integrity Program, and Chile and other New World producers use their own Denominación de Origen-style regional zones. In each system, if a single grape variety is named on the front label, a minimum proportion of that variety must actually be in the bottle — commonly around 75–85%, depending on the country.

Vintage and Varietal Labelling

A vintage is the year the grapes were harvested. Where a vintage year appears on a label, most systems — EU and non-EU alike — require a high minimum proportion of the wine, typically 85% or more, to genuinely come from grapes picked that year; the small remainder allows producers minor blending flexibility without forcing the wine into a non-vintage (NV) category. Non-vintage wines, common in sparkling wine production such as Champagne, are deliberately blended across several harvests to hold a consistent house style regardless of year-to-year vintage variation.

Varietal labelling means naming the grape (e.g., "Chardonnay") on the front label; regional labelling means naming the place (e.g., "Chablis") instead, leaving the grape variety implied by law rather than stated. This produces one of the most useful rules of thumb in WSET Level 2:

Old World wines tend to name the place; New World wines tend to name the grape.

A bottle of white Burgundy will say "Chablis," not "Chardonnay," because centuries-old appellation law already fixes which single grape may legally be grown there — anyone who knows the appellation system already knows the grape. A bottle from California, Chile, or Australia is far more likely to say "Chardonnay" directly on the front label, since New World GI systems are younger, place fewer restrictions on which grape can be planted where, and consumers there are far more used to shopping by grape variety than by unfamiliar place name.

Reading the Back Label

Beyond the GI and vintage, most wine back labels carry a standard set of information required, in most markets, by law: the producer's name and address, alcohol by volume (ABV), the volume in the bottle (usually 750ml), a sulphites warning ("contains sulfites") wherever sulphur dioxide is detectable above a legal threshold, and the country of origin. Many labels add optional extras — recommended serving temperature, food-pairing suggestions, or brief tasting notes — that help the consumer decide what to buy and how to enjoy it, even though none of that optional information is part of the legal GI framework itself.