From Legislative Decree 8th April 2010 no. 61 Art.1: “The Protected Designation of Origin (PDO) of wines, means the geographical name of a particularly suitable winegrowing area used to designate a renowned quality product, whose characteristics are essentially or exclusively connected to the natural environment and human factors. Some traditionally used terms also make up a designation of origin, as per the conditions provided for by article 118-ter, paragraph 2, of EC regulation no. 1234/2007.”;
Art. 3: “The Protected Designation of Origin (PDO), regarding products referred to in this decree, are classified as:   

1. Controlled and Guaranteed Designation of Origin (DOCG): reserved for recognised DOC wines for at least ten years that are considered particularly fine by effect of the incidence of traditional natural, human and historical factors and that have acquired a fame and commercial valorisation on a national and international level.
2. Controlled Designation of Origin (DOC): a brand of Italian origin used in winemaking that certifies the defined area of origin of the harvest of grapes used for producing the product on which the brand is placed; it is used to designate a renowned quality product, whose characteristics are connected to the natural environment and human factors, and which respect specific production rules approved by a ministerial decree.

The same Legislative Decree Art 1 2. “The protected geographical indication (PGI) of wines means the geographical name of an area used to designate the product derived from it and which possesses the quality, fame and specific characteristics attributable to the said area”. And in Art. 3, 3. The PGIs, regarding the products referred to in this decree, include the typical geographical indications (TGI). The typical geographical indication consists in the specific traditional reference used by Italy to designate PGI wines as regulated by the European Community. The reference “Vin de pays” may be used for TGI wines produced in Val d'Aosta, a bilingual French-Italian area, “Landwein” for TGI wines produced in the province of Bolzano, a bilingual German-Italian area, and “deželma oznaka” for TGI wines produced in the provinces of Trieste, Gorizia and Udine, in accordance with the above-mentioned law of 23rd February 2001, no. 38.