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Standards and Guidance for Sensitive Information

Date released
3 July 2023
Request number
202306011
Release of information under
Freedom of Information Act 2000 (FOIA)

Information requested

Please could I be provided with the relevant with relevant security standards, policy, and guidance issued, and required by ONR (CNS) to protect sensitive nuclear information (OS-SNI and ‘S’ [UK-DBT and created work]), as noted in NISR guidance.

Information released

We confirm that under s.1 of the FOIA, we hold the information relevant to your request. However, as this information is already reasonably accessible to you via our website, s.21 of the FOIA prescribes that it is exempt from disclosure. We have provided you with the relevant links to assist you with finding the information.

As above, we readily publish guidance on our website here: ONR - Guidance. For your ease, we refer you to the Security Assessment Principles for the Civil Nuclear Industry 2022 Edition (Version 1) which sets out the security standards, policies, and guidance for protecting information classified as “OFFICIAL-Sensitive”, “Sensitive Nuclear Information” and “SECRET”.

Our Technical Assessment Guides (TAGs) also provide guidance on this topic, and those relevant to your request are:

Additional guidance on the classification of information can also be found here: NISR 2003 – Classification Policy for the Civil Nuclear Industry (onr.org.uk)

Exemptions applied

s.21

PIT (Public Interest Test) if applicable

N/A