Based on a common research strategy the Governmental research institutions in Germany provide scientific contributions for the recognition of health and environmental risks of nanomaterials at an early stage. From the results of more than 80 projects it appeared that a generic approach for risk characterisation, risk assessment and risk management of nanomaterials is not sufficiently targeted [Joint Research Strategy of German Governmental Research Institutions (2013): Nanotechnology – Risks related to Nanomaterials for Humans and the Environment (2007 - 2011)]. As a contribution to good governance in the sector of nanomaterials the development of categorization approaches for a joint consideration of different forms of nanomaterials with regard to the fulfilment of information requirements seems to be a good starting point for the integration of the vast number of nanomaterials into existing regulations for chemical safety (e. g. REACH, CLP). Furthermore the amendment and/or development of test guidelines and guidance documents with emphasis on the specific needs with regard to the testing of nanomaterials is of high importance. Based on these assumptions the German contribution to NANoREG focuses on several methods and principles for the testing of nanomaterials, which have been developed within former research activities and are now made compatible to regulatory purposes.