Vehicle speed limit Type of vehicle to which it applies
65 kilometres an hour (65kmh) On all roads
A single or double deck bus or coach designed for carrying standing passengers
A goods vehicle with a maximum authorised mass (MAM) of more than 3,500 kilograms
80 kilometres an hour (80kmh) On all roads except motorways
90 kilometres an hour (90kmh) On motorways
A goods vehicle with a maximum authorised mass (MAM) of more than 3,500 kilograms
80 kilometres an hour (80kmh) On all roads
Any vehicle towing a trailer, caravan, horsebox or other attachment
A single or double deck bus or coach that is not designed for carrying standing passengers
80 kilometres an hour (80kmh) On all roads except motorways or dual carriageways
A single or double deck bus or coach that is not designed for carrying standing passengers
100 kilometres an hour (100kmh) On motorways or dual carriageways where no lower speed limit is in place
If the vehicle and road speeds are different, the driver must obey the lower of the two. For example, if a bus designed to carry standing passengers is travelling on a road with a speed limit of 80kmh, it cannot travel faster than its vehicle speed limit of 65kmh. But if it is travelling on a road with a speed limit of 50kmh, it must obey this limit regardless of the maximum speed at which it might otherwise be allowed to travel.