The RijekaâÂÂà  apjaneâÂÂState border railway, officially designated the M203 railway is a long, single-tracked railway line in Croatia, which is operated by Hà ½ Infrastruktura. M203 connects Rijeka to the Slovene railway network north of à  apjane and to the Zagreb via M202 east of Rijeka. It is electrified with 25 kV AC from Rijeka to à  apjane and 3 kV DC from à  apjane to the national border. Until 2014, it was classified as M502.
The route was opened in 1873.