Federal bus
The Federal Bus was a coordination office for regional bus traffic in Austria that existed from 1988 to 1997 . In the founding year, the federal bus office was established, which had to regulate the cooperation between the ÖBB motor vehicle service and the post office .
The clearest feature of the federal bus era was the uniform painting of the rail and post buses, the uniform stop signs and the uniform uniforms of the staff. Externally, the buses could only be distinguished by their license plate number : although all license plates were BD, those of the post buses had 5 digits (BD XXXXX), while those of the rail buses had 4 digits (BD XXXX).
The federal bus office no longer exists since 1997. From 1997 the yellow buses operated under the labels “PostBus” within the scope of Post & Telekom Austria AG and “BahnBus” as part of the passenger transport division of ÖBB , before the Postbus was sold to ÖBB in 2003.