Topic: Vehicle lights and horn · Nº 279 / 839

Con niebla que reduce mucho la visibilidad, ¿está permitido conducir solo con las luces de posición y las luces de cruce?

In fog that greatly reduces visibility, are you allowed to drive with only sidelights and dipped headlights?

  • ASí, si el vehículo no dispone de luces antiniebla.Yes, if the vehicle does not have fog lights.
  • BNo, debe encender obligatoriamente las luces antiniebla delanteras y traseras.No, you must switch on the front and rear fog lights.
  • CNo, deben llevarse encendidas las luces antiniebla delanteras en todos los casos.No, the front fog lights must be on in all cases.
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Correct answer

  • ASí, si el vehículo no dispone de luces antiniebla.Yes, if the vehicle does not have fog lights.
Explanation

In fog, Article 106.2 of the General Traffic Regulations requires the front fog light or dipped headlights or main beam, so dipped headlights are enough. In thick fog the rear fog light must also be switched on; if the vehicle has no fog lights, sidelights and dipped headlights are enough.

The rule · Real Decreto 1428/2003, de 21 de noviembre, Reglamento General de Circulación (RGC) · art. 106.2La luz antiniebla trasera solamente deberá llevarse encendida cuando las condiciones meteorológicas o ambientales sean especialmente desfavorables, como en caso de niebla espesa, lluvia muy intensa, fuerte nevada o nubes densas de polvo o humo.Read the full rule

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