This European Standard specifies security requirements for the protection and handling of event records which are stored in the data memory of breath alcohol controlled alcohol interlocks and which 125 may be downloaded, processed and transferred to supervising persons or organisations. This European Standard is a supplement to EN 50436-1. It has to be selected by the respective juris-diction whether the present standard has to be applied in addition to EN 50436-1. This European standard may also be used as a supplement to EN 50436-2 if a jurisdiction or a vehicle fleet operator decides that the data security in his preventive application has to have the same high level of requirements as for alcohol interlocks used in drink-driving-offender programmes. This European Standard is mainly directed to test houses, manufacturers for alcohol interlocks, legis-lating authorities and organisations which handle and use the alcohol interlock event records. In this European Standard, the alcohol interlock consists basically of handset and control unit. Optional accessory devices (e.g. camera, module for data transmission) which are intended to be used in the vehicle shall also be considered to be part of the alcohol interlock, where applicable. The service application communicates with the alcohol interlock and sends out the event records to a register, either directly or alternatively indirectly through a broker. The scheme is depicted in Figure 1. It also shows which parts are within the scope of this European Standard and which are outside of the scope. This European Standard applies to – the alcohol interlock, – the service application. This European Standard does not apply to – data security of the broker, – data security of the register, – storage of downloaded data, – requirements for organizational processes, for example defining rights of access to the data.
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