The Waiheke Winegrowers Association (WWA) have introduced an audited certification system which is available only to wines that are fault free and 100% made from grapes grown on Waiheke Island in a vineyard that is Sustainably Certified (Sustainable Winegrowing New Zealand, SWNZ) and produced and bottled in a Sustainably Certified Winery (SWNZ). This is the first regional certification of this type in New Zealand