While procuring supplies in the originating country might be relatively straightforward, supplies in overseas countries are less certain. A few large airlines have established catering subsidiaries in countries where they have a substantial interest in terms of the number of flights that land there. However, where the numbers of flights do not warrant establishing a dedicated catering outlet, flight provision must be contracted out to another caterer. This seldom becomes a major issue as the availability of standard or branded supplies does not pose a However, in developing countries or those with different ethnic or religious backgrounds, availability of supplies might be less Under these circumstances product specifications will provide general guidelines for the purchase of foods but supplies might need to be procured This is discussed in more detail in Chapter 6