Industrial security: departmental responsibilities

Guidance for departments and agencies on protecting classified information when working with contractors.


Industrial security: departmental responsibilities, May 2018

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This guidance for government departments and agencies explains how to protect classified information that they provide to ‘List X’ contractors or which is generated by the contractor from contracts placed with them.

List X contractors are companies operating in the UK who are working on UK government contracts which require them to hold classified information. This information is at ‘Secret’ or above or international partners information classified ‘Confidential’ or above, and is held their own premises at a specific site.

Published 1 April 2014
Last updated 15 May 2018 + show all updates
  1. Attachment updated; May 2018 version added.
  2. First published.