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Weather Home UK World Sports Coast and Sea Climate Change Features Understanding Weather Sport and Leisure Health and Culture History, Literature & Religion Science and Nature Coast and Sea Weatherwise About BBC Weather Site FAQ About the BBC	Driving in Foggy Conditions

		Motoring organisation RAC give us some tips for driving safely in foggy weather conditions.	Key Points Inappropriate use of fog lights can be illegal. Fog lights should not be used unless visibility is seriously reduced. Ensure your car lights are clean and in full working order. Fog lights should be switched off once the visibility improves. Also in BBC Weather Driving and Weather Wet Weather Driving Winter Motoring Checks Driving in Icy Conditions Fog bbc.co.uk Links Motoring External Web Links RAC Disclaimer The BBC is not responsible for the content of external websites.

	With the onslaught of winter comes the likelihood of fog and the need for drivers to use their lights appropriately. ...there are times when the inappropriate use can be illegal... RAC patrol of the year Paul Oakley said "Although using your lights will make you more visible, there are times when the inappropriate use can be illegal and cause visibility problems for others. Many drivers switch on their rear fog lights as soon as it gets misty or starts to rain, not realizing the danger this misuse of their lights may cause to themselves and other road users." The law, as presented by The Highway Code, states that front and rear fog lights must not be used unless visibility is seriously reduced - which generally means when you cannot see further than 100 metres (328 feet) - and that they must be switched off once the visibility improves. Using rear fog lights when visibility is greater than 100 metres can mask the brake lights and dazzle those drivers following, thus increasing the risk of a rear-end collision rather than reducing it. Front fog lights should only be used where visibility is seriously reduced... Front fog lights should only be used where visibility is seriously reduced and should be adjusted so as not to cause undue dazzle or discomfort to other road users. The inappropriate use is dangerous as it can affect the oncoming driver's ability to see cyclists, pedestrians, and also the road. Before setting off on any journey, whatever the weather, you should ensure your lights are clean and in full working order, and remember when driving in weather where visibility is poor: Use the correct lights for the weather conditions. Use dipped headlights not full beam. Use fog lights if visibility is 100 metres or less, but remember to switch them off when visibility improves. Don't hang on to the tail-lights of the vehicle in front. Leave plenty of room between you and the car in front. Slow down.

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Driving in Foggy Conditions