การขนส่งผู้โดยสารทางรถไฟระหว่างเมือง

This class includes:
- passenger transport by inter-urban railways
- operation of sleeping cars or dining cars as an integrated operation of railway companies

This class excludes:
- passenger transport by urban and suburban transit systems, see 4921
- passenger terminal activities, see 5221
- operation of sleeping cars or dining cars when operated by separate units, see 5590, 5610