SNCF Infra to combine rail infrastructure into a single organisation, Gestionnaire d'Infrastructure Unifié, or GIU. SNCF Infra has a number of subsidiaries, including SYSTRA, and the Direction de la Circulation Ferroviaire (DCF), a nominally independent body which manages traffic on behalf of RFF. On 1 January 2015, Réseau ferré de France (RFF) merged with SNCF Infra and the Direction de la circulation ferroviaire (DCF) and became "SNCF Réseau". SNCF Infra SNCF Infra was the infrastructure division of SNCF, the former nationalised railway operator in France. It has 51,000 employees and revenue was €5.5Bn in 2012. In order to comply with EU regulations
Argentine State Railway companies in the country, operating a railway network of 6,617 km. By 1936 the railway network had been extended to 9,690 km. Most of the railway lines built by the Argentine state were metre gauge because of financial reasons. In 1937 the State company began to acquire some existing companies with the purpose of competing against British railway companies. In 1948 Argentine State Company (along with British and French companies) became part of Ferrocarriles Argentinos after nationalisation of the railway network, headed by then-President Juan Domingo Perón. Therefore, the Central Northern rail lines were added to General Belgrano Railway network