# Council Decision of 23 September 2013 on the security rules for protecting EU classified information (2013/488/EU), Division 41

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

Classified information transmitted under the circumstances set out in paragraph 39 shall not bear any markings or indications distinguishing it from information which is unclassified or which can be protected by an available cryptographic product. Recipients shall be notified of the classification level, without delay, by other means.

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Source: https://www.legislation.gov.uk/eudn/2013/488/annex/IV/division/II/division/12/division/41 (the official version)
Page: https://openlegislation.uk/eu-decision-2013-488/annex-IV/division-II/division-12/division-41
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.