The Statistical Institute of (---), is constructing a production system, mainly based on administrative registers made up of three different subsystems: The Statistical Population Register (REP), the Statistical Territory Register (RET) and the Statistical Entity Register (REE). The REP and REE subsystems manage all the events which affect the microdata studied (population in the case of the REP and companies and entities in the case of the REE). These microdata contain information on postal addresses, owing their geolocation. The Statistical Territory Register (RET) is a spatial information subsystem whose main purpose is the geolocation and validation of the postal addresses which appear in the other subsystems. In this paper, we will outline the geocoding and validation processes performed by the RET and describe the methods for the quality control of the basic information permitting the validation of postal addresses.