Articulated vehicles are those made of two or more parts joined by a pivot, allowing them to turn easily. These are common in trucks with trailers or buses with flexible sections.The restriction codes for articulated vehicles are:Code 6: Up to 1600 kgCode 7: 1601 to 4500 kgCode 8: Over 4500 kgDrivers must have the right code depending on the total weight of the articulated vehicle.