Specifies the requirements for the provision, visibility, readability, maintenance and testing of a specific set of ERTMS trackside boards associated with the following DMI and ETCS track conditions: * ETCS stop marker; * ETCS location marker, the trackside ETCS signal to identify a specific location on the line; * level transition, corresponding to transitions between ETCS levels; * lower pantograph; * pantograph lowered; * raise pantograph; * neutral section announcement; * neutral section; * end of neutral section; * GSM-R network border marker.