# Council Decision of 23 September 2013 on the security rules for protecting EU classified information (2013/488/EU), Division 24

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

Such subordinate registries may not transmit TRÈS SECRET UE/EU TOP SECRET documents directly to other subordinate registries of the same central TRÈS SECRET UE/EU TOP SECRET registry or externally without the express written approval of the latter.

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Source: https://www.legislation.gov.uk/eudn/2013/488/annex/III/division/III/division/7/division/24 (the official version)
Page: https://openlegislation.uk/eu-decision-2013-488/annex-III/division-III/division-7/division-24
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.