My Department has a number of significant business systems which hold address data. Some of these are nearing end of life, and would not be expected to support Eircodes. Most other systems support the use of postcodes, which can be used for recording Eircodes. In that respect, there is no expected cost of upgrading these systems. One system does not have a dedicated postcode/Eircode field at present, but no estimate has been made to date for any work which might be required to add such a dedicated field to the system. Some work was carried out in one system to allow the use of Eircodes for address verification purposes. This work was carried out as part of a larger body of work, and was not priced separately. The cost of the work is estimated to be €2,500. The use of Eircodes is not mandatory in any of my Department’s systems at this time.