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Question 7502

The rear fog light must be used in case of...

  1. thick fog.
  2. driving at dusk on a road without a shoulder.
  3. driving at night on an unpaved road.
Show answer and explanation

Correct answer: thick fog.

In thick fog, you must use the rear fog light so others can see you from behind. A road without a shoulder or pavement does not reduce visibility, so it does not justify using it. In the image, the car ahead has its rear fog light on.

Real Decreto 1428/2003, de 21 de noviembre, por el que se aprueba el Reglamento General de Circulación