The Department of Railway Safety (NSA) has been established in the Ministry of Transport and Communications according to the presidential decree 160 (Official Gazette of the Hellenic Republic A’ 201/23.08.2007), article 15, under the Direction of Freight Transport of the Ministry. The department has been assigned the exercise of the duties of the National Safety Authority of the Safety Directive 2004/49/EC, as defined in the presidential decree 186 (Official Gazette of the Hellenic Republic A’ 221/12.09.2007).