It has always been inadvisable to pass too closely to a cyclist for safety reasons but you could now be fined if you come within a certain distance while overtaking.
Following law changes which will take place in March 2019, motorists could be fined for not leaving enough space between a vehicle and a bike. Failure to do so could land you with a £100 fine and three points on your licence.
Police forces across the country are being encouraged to penalise those who drive dangerously close to cyclists.
The Highway Code states drivers should leave at least 1.5m (4.9ft), which is roughly a car door width.