| 50400 | Barge lessee or owner (freight) |
| 50400 | Boat rental for transport of freight with crew (inland waterway service) |
| 50400 | Canal carrier (freight) |
| 50400 | Freight ferry (river or estuary) |
| 50400 | Freight ferry transport (inland waterway service) |
| 50400 | Freight vessel rental with crew (inland waterway service) |
| 50400 | Inland water transport (freight) |
| 50400 | Local authority freight ferry services on rivers, canals and lakes |
| 50400 | Transport of freight via canals |
| 50400 | Transport of freight via lakes |
| 50400 | Transport of freight via ports |
| 50400 | Transport of freight via rivers |
| 50400 | Water transport of freight inside harbours and docks |
| 50400 | |