EFDA (1999 — 2013) has been followed by EUROfusion, which is a consortium of national fusion research institutes located in the European Union and Switzerland.

At the European level, the so-called EURATOM Treaty is the international legal framework under which member states cooperate in the fields of nuclear fusion research.

The main task of the Close Support Units is to ensure that these diverse activities are integrated in a coordinated European Fusion Programme.

The European Task Forces on Plasma Wall Interaction (PWI) and on Integrated Tokamak Modelling (ITM) set up respectively in 2002 and 2003.

To strengthen the co-ordination in other key areas five Topical Groups have been set up in 2008: on Fusion Materials Development, Diagnostics, Heating and Current Drive, Transport and Plasma Stability and Control.