Abstract
Comparable regional statistical data for Germany are becoming increasingly important. Regional classifications and standards are fundamental to such data. The European Union (EU) in particular, but also the Organisation for Economic Co-operation and Development (OECD), have carried out vital preliminary work in this area. For example, they have created a hierarchical and non-overlapping territorial classification and laid down criteria for the classification of regions. These classifications are essential in order to be able to conduct harmonised, transboundary sub-national analyses, as required for `open government' or for the EU's funding programmes and environmental and sustainability policy. An overview of the current regional statistical data for Germany as provided by federal statistics completes the analyses.