The vineyards for "Appellation d'Origine Contrôlée" wines are planted with traditional grape varieties: Grenache, Syrah, Mourvèdre and Carignan for red wines, Clairette, Viognier, Grenache blanc and Bourboulenc for white wines. The proportions allowed of each variety are specified in the regulations for each "appellation". The regulations for red wines specify a minimum percentage of Grenache grapes of between 40 and 50 percent. For the "Indication Géographique Protégée" category a wider range of grape varieties are grown including "international" varieties such as Merlot, Cabernet-Sauvignon and Chardonnay.