IGA (Independent Grocers of Australia) is a chain of locally owned supermarkets in Australia. Their slogan is "How the locals like it." That means by using IGA franchise each of supermarket is owned by different (local) people. Therefore every shop might have different policies regarding waste food. However, in many cases it is easy to find IGA bins unlocked.
Other names of IGA
In different regions of Australia the IGA supermarkets chain might be presented with another brand name. A small red IGA logo is also visible together with the following brand names.
Locations of these shops are included in the IGA official website's store locator (see link below).