As the main task of the S-Bahn the transport of passengers, the normal operation of the trains must not be hindered.
Film shoots, which reduce the safety for the driver and the passengers, cannot be permitted.
Projects, which are detrimental to the image of the S-Bahn, cannot be permitted.
During public events shooting is usually not permitted, due to the expected amount of passengers.
For film shooting, the decoration may be changed if previously arranged with the S-Bahn authorities.