Article 38 of the Road Traffic (Traffic and Parking) Regulations, 1997 assigns competence to road authorities, on a devolved basis, to restrict the parking of large vehicles in specified areas. The article provides that where a no parking sign, accompanied by an information plate containing the symbol of a large vehicle and indicating a specified unladen weight, is in place, a vehicle which exceeds that unladen weight cannot be parked; this restriction continues until a traffic sign is encountered indicating that the prohibition has ended. The application of this kind of restriction on an area or other basis is for indi vidual local authorities to consider in the light of particular circumstances.