If due to heavy rain, on an interurban road a black-coloured vehicle cannot be distinguished at 50 metres away, is it possible to drive with the high beam light on?

# Explanation In conditions of heavy rain where visibility is significantly reduced (such as being unable to distinguish a vehicle at 50 metres), it is permitted to use high beam lighting on interurban roads. This rule exists precisely to improve safety when adverse weather conditions reduce natural lighting on the road. The use of high beam lights is a road safety measure in these exceptional circumstances.