The Bulle-Romont Railway (BR), (French: "Chemin de fer Bulle–Romont") is the oldest part of the entire network. The 18 km-long standard gauge railway line from Romont, standard gauge railway line was opened on 1 July 1868 to Bulle station on the Lausanne–Fribourg–Bern Railway (LFB), which was opened on 4 September 1862 and is now part of the SBB. The railway initially had no own rolling stock, but contracted its management to the LFB and its successor. It was not until 1929 that the stations were opened; passenger operations, for which two steam locomotives and three passenger coaches were acquired from other railways, commencing in 1934. After the merger, which was mainly intended to obtain federal subsidies under the "Privatbahnhilfegesetz" (private railways assistance act), electrification was tackled and electrical operations commenced on 8 May 1946.