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Question 7511

If a cloud of dust significantly reduces visibility, which lights must you use in addition to the position lights?

  1. The rear fog light and either the low beams or the high beams.
  2. The front and rear fog lights and the high beams.
  3. The front fog light or the low or high beams.
Show answer and explanation

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

When dust greatly reduces visibility, you must turn on your front fog lights, low beams, or high beams in addition to your position lights. You may use just one of these or combine them. The rear fog light is added only if the dust cloud is dense. In the image, the car ahead is entering the dust cloud with its lights on.

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