# Commission Regulation (EU) No 347/2012 of 16 April 2012 implementing Regulation (EC) No 661/2009 of the European Parliament and of the Council with respect to type-approval requirements for certain categories of motor vehicles with regard to advanced emergency braking systems, Division 3.4.3

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

The manufacturer shall provide the technical authorities with an explanation of the design provisions built into ‘the System’ so as to generate safe operation under fault conditions. Possible design provisions for failure in ‘the System’ are for example:
(a) fall-back to operation using a partial system;
(b) change-over to a separate back-up system;
(c) removal of the high level function.
In case of a failure, the driver shall be warned for example by warning signal or message display. When the system is not deactivated by the driver, e.g. by turning the ignition (run) switch to ‘off’, or by switching off that particular function if a special switch is provided for that purpose, the warning shall be present as long as the fault condition persists.

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Source: https://www.legislation.gov.uk/eur/2012/347/annex/III/division/3/division/3.4/division/3.4.3 (the official version)
Page: https://openlegislation.uk/eu-regulation-2012-347/annex-III/division-3/division-3.4/division-3.4.3
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.