On-site refers to the data access via a workspace at the DZHW as a visiting scientist. This data access path must be selected if a SUF data version is to be used which contains sensitive microdata with the lowest degree of anonymisation. These data are only accessible at specially secured workspaces and via specially secured computers that are neither connected to the Internet nor to the normal local network at the DZHW. The exchange of files is carried out exclusively by employees of the Research Data Centre, who are also responsible for the examination and release of output files in accordance with data protection laws. In addition to a guest stay at the FDZ-DZHW in Hanover, this data access requires a valid data usage contract. To plan a guest stay, please contact the Research Data Centre in good time.