 Building on the Monti report, the communication 'Towards a Single Market Act' detailed 50 proposals to reform the SM by the end of 2012.But the DSM was only adopted in 2015 and the proposal for a directive of the European Parliament and the Council was made in September 2016.The DSM is presented as a key priority in the economy of Union, even if there were several attempts to deepen the integration, there are still obstacles remaining.