Guidance

Government Security Classifications

How the government classifies information assets to ensure they are appropriately protected.

• From: Cabinet Office
• Published: 18 October 2013
• Last updated: 5 August 2024 — See all updates

Documents

Government Security Classifications Policy (PDF)

PDF, 287 KB, 34 pages

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Government Security Classifications Policy (HTML)

HTML

Government Security Classifications Policy Quick Read (PDF)

PDF, 254 KB, 8 pages

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Government Security Classifications Policy Quick Read (HTML)

HTML

Guidance 1.1 - Working at OFFICIAL (PDF)

PDF, 124 KB, 13 pages

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Guidance 1.1 - Working at OFFICIAL (HTML)

HTML

Guidance 1.2 - Working at SECRET (PDF)

PDF, 91 KB, 9 pages

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Guidance 1.2 - Working at SECRET (HTML)

HTML

Guidance 1.3 - Working at TOP SECRET (PDF)

PDF, 80.5 KB, 8 pages

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Guidance 1.3 - Working at TOP SECRET (HTML)

HTML

Guidance 1.4 - Working Remotely at OFFICIAL and SECRET (PDF)

PDF, 65.5 KB, 7 pages

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Guidance 1.4 - Working Remotely at OFFICIAL and SECRET (HTML)

HTML

Guidance 1.5 - Considerations for Security Advisors (PDF)

PDF, 164 KB, 27 pages

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Guidance 1.5 - Considerations for Security Advisors (HTML)

HTML

Guidance 1.6 - Contractors and Contracting Authorities (PDF)

PDF, 40.9 KB, 4 pages

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Guidance 1.6 - Contractors and Contracting Authorities (HTML)

HTML

Guidance 1.7 - Frequently Asked Questions (PDF)

PDF, 67.5 KB, 5 pages

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Guidance 1.7 - Frequently Asked Questions (HTML)

HTML

Protected Document Registry Book Template

ODS, 12.2 KB

This file is in an OpenDocument format

Details

The Government Security Classification Policy was updated on the 30 June 2023. The Government Security Classification Policy provides an administrative system for HM Government (HMG) and our partners to protect information assets appropriately against prevalent threats.

Security Education and Awareness

• Classification overview
• Classification secret top secret
• Classification official
• Additional markings
• Classification for Suppliers

Published 18 October 2013
Last updated 5 August 2024 + show all updates

1. 5 August 2024

   Updated the documents: Government Security Classifications Policy Government Security Classifications Policy Quick Read Guidance 1.1 - Working at OFFICIAL Guidance 1.5 - Considerations for Security Advisors

2. 17 July 2023

   Added the document: Protected Document Registry Book Template

3. 30 June 2023

   Added the following documents: Government Security Classifications Policy, Guidance 1.1 - Working at OFFICIAL, Guidance 1.2 - Working at SECRET, Guidance 1.3 - Working at TOP SECRET, Guidance 1.4 - Working Remotely at OFFICIAL and SECRET, Guidance 1.5 - Considerations for Security Advisors, Guidance 1.6 - Contractors and Contracting Authorities, Guidance 1.7 - Frequently Asked Questions, Government Security Classifications Policy Quick Read

4. 21 May 2018

   'Government Security Classifications' and 'Working with official information' documents updated.

5. 5 March 2014

   Updated 'Managing Information Risk at OFFICIAL'.

6. 18 October 2013

   First published.