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Question 4551

It is daytime and you are about to drive through a stretch with non-dense clouds of dust that significantly reduce visibility. What lighting must you use, in addition to the position lights?

  1. The front fog light or the low or high beams.
  2. None, the position lights are sufficient.
  3. The front and rear fog lights.
Show answer and explanation

Correct answer: The front fog light or the low or high beams.

If dust greatly reduces visibility, lighting is mandatory during the day too. In addition to your position lights, you must turn on your front fog lights, low beams, or high beams. Any one of these is enough, and you may combine them. Since the cloud is not dense, the rear fog light must stay off. In the image, a cloud of dust crosses the road in broad daylight.

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