The Road (Traffic and Parking) Regulations, 1997 give local authorities the power to apply restrictions to heavy goods vehicles from entering particular public roads or areas. Article 17 of these regulations provides that where the approachable traffic sign is provided at the entrance to a road, the driver of a vehicle, the unladen weight of which exceeds the weight specified on the sign, is prohibited from proceeding beyond the sign except where it is necessary for the vehicle to enter a road solely for the purpose of gaining access to or egress from premises accessible only from that road. The application of such restrictions is a matter for each local authority.
Enforcement of the traffic and parking regulations is a matter for the Garda Síochána and local authority traffic wardens.