In case of technical or specialist questions, the user can contact the CISP support hotline. This service can be contacted on working days from Monday to Friday, 8:00–16:00 (CET), on +49 (0)30 2598 4436, or any time via e-mail:

Use of this support is subject to the terms of use of the public enquiry service of the Federal Ministry of the Interior, Building and Community.

FAQ for the CISP