Ferrovie dello Stato Italiane a centralization policy was carried out. The board of directors and chief administrator office were abolished at the end of 1922. The institution was administered by a commissioner, appointed by the King until April 1924. Since then, Ferrovie dello Stato was managed by the newly born Ministry of Communications (including rail transport), under Costanzo Ciano. After the armistice on 8 September 1943, Italy was divided and train operations were separately directed too, with headquarters in Salerno for the south and Verona for the north. At the end of 1944, the Ministry of Communications was split and the new Ministry of
Terni–Sulmona railway again; the team was relegated and never recovered its lost position. In the 1930s steam locomotives were dismissed and faster ALn 56 and ALn 556 diesel multiple units (DMU) were introduced; in the 1980s these were replaced with ALn 668 3300 series. In 1905 all Italian railways were nationalized and Ferrovie dello Stato Italiane took control of the Terni–Sulmona railway. In 2008 Trenitalia, the passenger division of Ferrovie dello Stato, put out passenger services on the Terni–L'Aquila route entrusting Ferrovia Centrale Umbra for the service (now Umbria Mobilità, part of the Busitalia group). Ferrovia Centrale Umbra operates his services using