What lights should you use if daytime visibility is poor but not seriously reduced?

Explanation: Only use your fog lights when visibility is seriously reduced. Use dipped headlights at other times when visibility is poor. Your headlights and tail lights help others on the road to see you. It may be necessary to turn them on during the day if visibility is reduced; for example, due to heavy rain.

Category: Band 3 driving test

References: The Official DVSA Guide to Driving: Section 12, Highway Code: Rule 226