Night Driving & Visibility

You should also keep your headlights dipped when overtaking until you are level with the other vehicle and then change to main beam if necessary, unless this would dazzle oncoming road users.

All vehicles MUST display parking lights when parked on a road or a lay-by on a road with a speed limit greater than 30 mph (48 km/h).

These roads are generally restricted to a speed limit of 30 mph (48 km/h), or 20mph (32km/h) in Wales, unless otherwise specified.

You MUST switch them off when visibility improves to avoid dazzling other road users.

Other vehicles and trailers, and all vehicles with projecting loads, MUST NOT be left on a road at night without lights.

You should also use dipped headlights, or dim-dip if fitted, at night in built-up areas and in dull daytime weather, to ensure that you can be seen.

You MUST NOT use any lights in a way which would dazzle or cause discomfort to other road users, including pedestrians, cyclists and horse riders.

Other vehicles and trailers, and all vehicles with projecting loads, MUST NOT be left on a road at night without lights.

You MUST use headlights at night, except on a road which has lit street lighting.

Cars... may be parked without lights on a road (or lay-by) with a speed limit of 30 mph (48 km/h) or less if they are: at least 10 metres (32 feet) away from any junction, close to the kerb and facing in the direction of the traffic flow.