On 1 July 2009, the French Nuclear Safety Authority (Autorité de sûreté nucléaire – ASN), in a letter from its Chairman, Mr André-Claude Lacoste, informed Electricité de France (EDF), the French electrical utility that ASN had not identified any generic problems capable of jeopardising EDF’s capability to ensure the safety of its 900-MWe reactors up to 40 years.