Speed limits in Ireland
Speed limits in Ireland apply on all public roads in the state. These are regulated in the Road Traffic Act 2004, and are signposted and legislated for in kilometres per hour.: Part 2
Speed limits are demarcated by regulatory road signs. These consist of white circular signs with a red outline. Speed limits are marked in black with "km/h" below the speed limit. Smaller "repeater" speed limit signs are used along stretches of road where there is no change in speed limit, in order to remind motorists currently on the road and to inform traffic merging from junctions that a certain speed limit applies.