ASN published the 2011-2015 national action plan for management of the radon risk. This document is the result of collaboration between ASN, the ministries responsible for health, housing and labour and the partner organisations (Institute for Radiation Protection and Nuclear Safety - IRSN, French Health Monitoring Institute - InVS, Building Industry Scientific and Technical Centre - CSTB, Regional Council of the Limousin département). This second action plan follows on from the 2005-2008 plan, the results of which were published by ASN in 2009.