Section 17 VEHICLES, AIRCRAFT, VESSELS AND ASSOCIATED TRANSPORT EQUIPMENT 87 Vehicles other than railway or tramway rolling-stock, and parts andaccessories thereof 87 16 TRAILERS AND SEMI-TRAILERS; OTHER VEHICLES, NOT MACHANICALLY PROPELLED 87 16 31 Tanker trailers and tanker semi-trailers Commodity Code Description 87 16 31 00 Tanker trailers and tanker semi-trailers