# Council Regulation (EEC) No 3821/85 of 20 December 1985 on recording equipment in road transport, Division 4: Security

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

The system security aims at protecting the data memory in such a way as to prevent unauthorised access to and manipulation of the data and detecting any such attempts, protecting the integrity and authenticity of data exchanged between the motion sensor and the vehicle unit, protecting the integrity and authenticity of data exchanged between the recording equipment and the tachograph cards, and verifying the integrity and authenticity of data downloaded.
012 In order to achieve the system security, the recording equipment shall meet the security requirements specified in the motion sensor and vehicle unit generic security targets (Appendix 10).

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Source: https://www.legislation.gov.uk/eur/1985/3821/annex/2/division/II/division/4 (the official version)
Page: https://openlegislation.uk/eu-regulation-1985-3821/annex-2/division-II/division-4
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.