If you are driving a car in foggy conditions, which fog light is optional to use?

Question

DentroTest · Accepted Answer

The correct answer is the front fog light.  It is essential to distinguish the regulations between both types of fog lights for passenger cars:  Rear fog light: Its installation and usage are mandatory. It must be switched on only in very unfavorable conditions (dense fog, very heavy rain, heavy snow, or dense clouds of dust and smoke) so that the vehicle can be seen by others.  Front fog light: Its installation and usage are optional. Not all vehicles are equipped with it. If the vehicle has it, the driver may use it to improve visibility in cases of fog (not necessarily dense), snow, storms, or on narrow winding roads, but is not legally required to switch it on.

If you are driving a car in foggy conditions, which fog light is optional to use?

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