1 Sea transport (including wagons, motor vehicles, trailers, semi-trailers and lighters on board of a ship) 2 Railway transport (including lorries on railway wagons) 3 Road transport 4 Air transport 5 Postal consignments 7 Fixed transport installations (e.g. pipelines, high-tension cables) 8 Inland waterway transport 9 Own propulsion (imported or exported means of transport crossing the border under their own power, e.g. aircraft, lorries, boats, etc.)