Eisenbahn-Bau- und Betriebsordnung
The Eisenbahn-Bau- und Betriebsordnung ("Ordinance on the Construction and Operation of Railways" / railway regulations), abbreviated as EBO, is a German law regulation specifying rules and regulations for railways. The orders are enacted by the Federal Ministry of Transport based on enabling act through the General Railway Law ("Allgemeinen Eisenbahngesetz", first issued on 29.
Source: Wikipedia — Eisenbahn-Bau- und Betriebsordnung (CC BY-SA 4.0)