A road outside of a built-up area has just one lane in the direction of travel. Which trucks have to maintain such a great distance between them and the vehicle ahead, that an overtaking vehicle can pull back into lane?

On rural roads with only one lane in each direction, trucks with a gross vehicle weight rating over 3.5 tons must keep enough distance from the vehicle ahead so that overtaking vehicles can safely move back into the lane. This rule exists to make overtaking safer for other drivers, as heavy trucks need more time and space to brake. Keeping this larger distance reduces the risk of accidents during overtaking maneuvers and supports overall road safety in areas where passing opportunities are limited. Lighter trucks or smaller vehicles are not required to keep this special distance. Remember: only trucks above this weight limit must follow this rule on non-urban two-way roads with one lane per direction.