Holders of a valid railway undertaking license licensed to run trains on national and regional railways may also run trains on local railways or within sidings. Holders of a valid railway undertaking license licensed to run trains on a local railway or within a siding or railway undertakings not holding a safety certificate may also run trains on a junction with the national and regional railways.
A junction means the perimeter of a railway station or of another operational point where a siding or a local railway connects to the national or regional railway network.
If a siding or a local railway connects to the network outside the perimeter of a railway station or another operational point, the section between the point where the siding or local railway connects to the network and the closest railway station or another operational point is not considered to be a junction.
The Rail Authority regards a railway undertaking which runs trains at the junction of mutually connected lines within the perimeter of a railway station or another operational point on a national or regional railway as a railway undertaking licensed to run trains on a siding or a local railway; this undertaking only needs to fulfil obligations under its railway undertaking licence.