CFM (Calea Ferată din Moldova, which means 'Moldovan Railway' in Romanian) is the only railway operator in the Republic of Moldova, that is responsible for passenger and cargo transportation, as well as the railway infrastructure maintenance, within the country. It is the successor of MZhD, a subdivision of the USSR railway. The total length of the network managed by CFM (as of 2009) is 1232 km, of which 1218 km are 1,520 mm (4 ft 11 27⁄32 in) (broad gauge), and 14 km are 1,435 mm (4 ft 8 1⁄2 in) (standard gauge). The entire network is single track and is not electrified. It borders the Romanian railway network, with a 1,520 mm (4 ft 11 27⁄32 in) /1,435 mm (4 ft 8 1⁄2 in) break-of-gauge in the west, and the Ukrainian one in the east.