C. Copyright

All rights reserved. Reprinting, reproduction, or distribution of this guideline or extracts thereof is only permitted with the written or textual consent of gif Gesellschaft für Immobilienwirtschaftliche Forschung e.V., and with an indication of the source "Richtlinie zum Immobilien-Daten-Austausch (gif-IDA) © gif Gesellschaft für Immobilienwirtschaftliche Forschung e.V. (V 3.0, November 2021)".