When driving a truck on a stretch where weather or environmental conditions reduce visibility in an especially unfavorable way, is it mandatory to switch on the rear fog light?

Question

DentroTest · Accepted Answer

The General Traffic Regulations (Article 106(2)) state that the rear fog light must be switched on when weather or environmental conditions are especially unfavorable: thick fog, very heavy rain, heavy snowfall or dense clouds of dust or smoke. It allows vehicles driving behind to perceive the presence and position of the truck in time. Considering its use voluntary in those circumstances is a mistake, because the rule requires it. Nor is there any obligation to switch on the high beam together with the rear fog light: the rule does not link them.

When driving a truck on a stretch where weather or environmental conditions reduce visibility in an especially unfavorable way, is it mandatory to switch on the rear fog light?

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