# Council Decision of 23 September 2013 on the security rules for protecting EU classified information (2013/488/EU), Division 7

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

The overall classification level of a document or file shall be at least as high as that of its most highly classified component. When information from various sources is collated, the final product shall be reviewed to determine its overall security classification level, since it may warrant a higher classification than its component parts.

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Source: https://www.legislation.gov.uk/eudn/2013/488/annex/III/division/II/division/1/division/7 (the official version)
Page: https://openlegislation.uk/eu-decision-2013-488/annex-III/division-II/division-1/division-7
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.