Section 29 (3) of the German Road Traffic Regulations (StVO) stipulates that vehicles and trains whose dimensions, axle loads or total masses actually exceed the limits generally permitted by law require a permit. This also applies to traffic with vehicles whose design does not allow the driver a sufficient field of vision. If, on the other hand, the dimensions (length, width, height) are only exceeded as a result of the load, an exemption permit is required in accordance with Section 46 (1) sentence 1 no. 5 StVO.
A permit for large and heavy transports (special transports) can only be issued if the vehicle or vehicle combination in question has a vehicle-related special permit in accordance with Section 70 (1) No. 1 or 2 of the Road Traffic Licensing Regulations (StVZO).
Permits are issued on application and depending on the circumstances of the individual case, for a maximum duration of three years, as individual permits, short-term permits or permanent permits. Permanent permits can be issued on a route-by-route or area-wide basis. They must always be issued subject to revocation.
The basis for the official decision is usually the implementation of a hearing procedure in which, in particular, the road authorities along the planned transport route are heard. This serves to assess the risks posed by, for example, a particularly wide transport or a particularly heavy transport for other road users or the road infrastructure (in particular bridges) and, if necessary, to counter these by imposing official requirements and conditions.
If the safety or order of traffic or the protection of the road infrastructure requires it, the permits are subject to conditions and requirements. For example, time restrictions may be imposed (e.g. transportation during the night when there is little traffic) or the applicant may be required to provide security for the transport by providing private escort vehicles (e.g. of the BF-4 type).
Police escorts for special transports are only to be provided by the licensing authorities in cases where securing the transport with private escorts is not considered sufficient.
