Vin délimité de qualité supérieure ("Delimited Wine of Superior Quality"), usually abbreviated as VDQS, was the second highest category of French wine, below Appellation d'Origine Contrôlée (AOC) in rank, but above Vin de pays (country wine). VDQS was sometimes written as AOVDQS, with AO standing for Appellation d'Origine. VDQS wines were subject to restrictions on yield and vine variety, among others.