The contribution of the grape growing and wine making industries to Australia’s continued economic prosperity is under threat. While international market dynamics are often cited as the cause, the problem of oversupply and more specifically calls for government intervention were the focus of the recently completed NSW Legislative Council’s Standing Committee on State Development Wine Grape Market and Prices Inquiry (Catanzariti Inquiry, 2010a). This paper examines the process and outcomes of the Inquiry and the NSW Government’s response to its recommendations. It is argued that a mandatory Code of Conduct ought to be adopted by the industry to govern the relationships between winegrape growers and wine makers.