# Commission Decision of 14 November 2012 concerning the technical specification for interoperability relating to the ‘operation and traffic management’ subsystem of the rail system in the European Union and amending Decision 2007/756/EC (notified under document C(2012) 8075) (Text with EEA relevance) (2012/757/EU), Division 4.2.3.5: Data recording

Extent: E+W+S+N.I.

Data pertaining to the running of a train must be recorded and retained for the purposes of:
supporting systematic safety monitoring as a means of preventing incidents and accidents,
identification of driver, train and infrastructure performance in the period leading up to and, if appropriate, immediately after an incident or accident, in order to enable the identification of causes, and supporting the case for new or changed measures to prevent recurrence,
recording information relating to the performance of both the locomotive/traction unit and the person driving.
It must be possible to match recorded data to:
the date and time of the recording,
the precise geographic location of the event being recorded,
the train identification,
the identity of the driver.
Data to be recorded for ETCS/GSM-R are those defined in the TSI CCS and that are relevant considering the requirements in point 4.2.3.5 of this TSI.
The data must be securely sealed and stored and accessible to authorised bodies including National Investigation Bodies in carrying out their role pursuant to Article 19 of Directive 2004/49/EC.

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Source: https://www.legislation.gov.uk/eudn/2012/757/annex/I/division/4/division/4.2/division/4.2.3/division/4.2.3.5 (the official version)
Page: https://openlegislation.uk/eu-decision-2012-757/annex-I/division-4/division-4.2/division-4.2.3/division-4.2.3.5
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.