Warehousing and support activities for transportation Standard Industrial Classification (SIC) codes of UK-based importers and exporters 52101 - Operation of warehousing and storage facilities for water transport activities (924) 52102 - Operation of warehousing and storage facilities for air transport activities (891) 52103 - Operation of warehousing and storage facilities for land transport activities (18462) 52211 - Operation of rail freight terminals (75) 52212 - Operation of rail passenger facilities at railway stations (145) 52213 - Operation of bus and coach passenger facilities at bus and coach stations (443) 52219 - Other service activities incidental to land transportation, n.e.c. (6136) 52220 - Service activities incidental to water transportation (1577) 52230 - Service activities incidental to air transportation (2120) 52241 - Cargo handling for water transport activities (1621) 52242 - Cargo handling for air transport activities (2106) 52243 - Cargo handling for land transport activities (4388) 52290 - Other transportation support activities (29794)