EN
After a historical review of the evolution of mediation in Spain, the incidence of mediation in society has been proven, both at Spanish and European level, after the approval of Directive 2008/52 / EC of the European Parliament and of the Council of 21May 2008, on certain aspects of mediation in civil and commercial matters. The consolidation of the mediation is still a pending task in Europe, it is necessary to foster the confidence of society in mediation as a formula for effective and quick management and resolution of the conflicts. This paper analyses the level of sufficiency of the necessary requirements to be a mediator in each of the twentyeight Member States and then, firstly, it verifies its possible link with the fact that the States have promoted or regulated the mediation and, secondly, it verifies its possible link with the number of annual mediations performed by them.