This European Standard specifies the standard data concepts that comprise the "Minimum Set of Data" (MSD) to be transferred from a vehicle to a 'Public Safety Answering Point' (PSAP) in the event of a crash or emergency via an 'eCall' communication session. NOTE 1 The communications media protocols and methods for the transmission of the eCall message are not specified in this European Standard. NOTE 2 Additional data concepts may also be transferred, it is recommended any such data concepts should be registered using a data registry as defined in EN ISO 24978.