08 October 2018, Baden-Wuerttemberg, Stuttgart: A sign points to a section of the B14 on which a driving ban on Euro 5 diesel already applies. From July 1, 2020, there will be a formal nationwide ban on Euro 5 diesel in the state capital. In fact, the ban will not have any effect for the time being, as the prohibited zone cannot yet be fully signposted. Therefore, no one can be prosecuted for an infringement for the time being. Photo: Sebastian Gollnow/dpa