Geographical indications (GIs) are descriptions applied to a product that identify where it comes from. Eg Darjeeling tea must come from that region in India, and Feta cheese must come from the Feta region in Greece. In the Australian wine sector, Geographical Indications refer to the origin of winegrapes. Only wine made from grapes grown within a particular defined boundary can use the Geographical Indication of that location. For example: Margaret River, Barossa Valley. Wine Australia conducts an audit program to ensure that wineries making a Geographical Indication claim for their wine, can prove through their documentation that the grapes in the wine come from the specified Geographical Indication (GI), to the extent required by the blending rules.