# Regulation (EU) No 910/2014 of the European Parliament and of the Council of 23 July 2014 on electronic identification and trust services for electronic transactions in the internal market and repealing Directive 1999/93/EC, Division 4: Without prejudice to point (d) of point 1, qualified trust service providers managing electronic signature creation data on behalf of the signatory may duplicate the electronic signature creation data only for back-up purposes provided the following requirements are met:

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

(a) the security of the duplicated datasets must be at the same level as for the original datasets;
(b) the number of duplicated datasets shall not exceed the minimum needed to ensure continuity of the service.

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Source: https://www.legislation.gov.uk/eur/2014/910/annex/II/division/4 (the official version)
Page: https://openlegislation.uk/eu-regulation-2014-910/annex-II/division-4
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.