# Council Decision of 23 September 2013 on the security rules for protecting EU classified information (2013/488/EU), Division 22

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

Strong rooms shall be constructed within Secured Areas. The walls, floors, ceilings, windows and lockable doors shall be approved by the competent security authority and afford protection equivalent to a security container approved for the storage of EUCI of the same classification level.

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Source: https://www.legislation.gov.uk/eudn/2013/488/annex/II/division/IV/division/22 (the official version)
Page: https://openlegislation.uk/eu-decision-2013-488/annex-II/division-IV/division-22
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.