The European Inventory on validation of non-formal and informal learning is a regularly updated overview of validation practises and arrangements across Europe. It is compiled in cooperation with the European Commission. The Inventory was endorsed by the Council Recommendation of 2012 on validation and works together with the European guidelines as a tool to support countries to develop and implement validation arrangements. The aim of this synthesis report is to present the current situation in validation of non-formal and informal learning in Europe and to report on progress towards the 2012 Council recommendation on Validation (Council of the European Union, 2012)