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You’re driving with your front fog lights switched on. Earlier fog has now cleared. What should you do?

Leave them on if other drivers have their lights on

Switch them off as long as visibility remains good
Flash them to warn oncoming traffic that it's foggy

Drive with them on instead of your headlights

Switch off your fog lights if the weather improves, but be prepared to use them again if visibility reduces to less than 100 metres (328 feet).