CARD/1 provides interfaces to import automated land registry maps (ALK). This includes base map data in the EDBS format as well as data in the BGRUND format of the central base map database of Baden-Württemberg. CARD/1 also offers interfaces to import data in the digital parcel map of Bavaria (DFK) and in the SICAD format. Using the ISYBAU formats (type K and EY), information can be exchanged between any sewer cadastre.