From the Consorzio's website: The Chianti Wine Consortium was established in 1927 by a group of wine growers from the Provinces of Florence, Siena, Arezzo and Pistoia, and later expanded its operations to include the entire production region. It was legally recognized by the Production Regulation of 1967, and incorporated into the Denominazione di Origine Controllata e Garantita (Controlled and Guaranteed Denomination of Origin – DOCG).
Over 2,500 producers, cultivating more
than 10,500 hectares of vineyards and producing 550,000 hectoliters of
Chianti, are protected by the Consortium which, due to its tradition of
representation and operations, has been appointed as the official
monitor of Chianti by the Ministry of Agriculture, Food and Forestry
Policies (MIPAAF) by the ministerial decree of 22 May 1978, which was
later reconfirmed for the other denominations within its sphere of
responsibility in 2003 and 2004, and whose members receive the same
representation.