When driving a bus on a dual carriageway with three lanes in its direction, are you permitted to overtake a truck after passing a no-overtaking sign (R-305)?

Question

DentroTest · Accepted Answer

Since 1 July 2025 (Royal Decree 465/2025), the R-305 sign prohibits all vehicles from overtaking motor vehicles only when the maneuver involves encroaching on the area reserved for oncoming traffic. On a dual carriageway with three lanes in the same direction, the bus may overtake the truck by moving to another lane in its own direction, without encroaching on the opposite one, provided it observes the other overtaking rules. It is no longer true that the sign prohibits it in all cases, or that it only permits overtaking motorcycles: that exception has disappeared. The sign that prohibits overtaking even without encroaching on the opposite direction is the R-306 (No overtaking for trucks), and only for trucks of more than 3,500 kg.

When driving a bus on a dual carriageway with three lanes in its direction, are you permitted to overtake a truck after passing a no-overtaking sign (R-305)?

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