Land transport and transport via pipelines Standard Industrial Classification (SIC) codes of UK-based importers and exporters 49100 - Passenger rail transport, interurban (905) 49200 - Freight rail transport (1136) 49311 - Urban and suburban passenger railway transportation by underground, metro and similar systems (300) 49319 - Other urban, suburban or metropolitan passenger land transport (not underground, metro or similar) (1728) 49320 - Taxi operation (22911) 49390 - Other passenger land transport (12027) 49410 - Freight transport by road (103394) 49420 - Removal services (10420) 49500 - Transport via pipeline (140)