Office for Nuclear Regulation

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Nuclear Decommissioning / Licence Condition 36

Date released
Day Month 2016
Request number
Release of information under
Freedom of Information Act 2000

Information requested

I have been asked by the Elsevier Publishing Company to write a chapter of a book on Nuclear Decommissioning. My chapter refers to experience in decommissioning and to identify, "What went wrong."

I wrote to you earlier today to request, under some information on the 1998 Dounreay cable incident which is one of the case studies I am using in the chapter. This incident was, from memory, contributory to the creation of Licence Condition 36 and I plan to reproduce its text directly from your ONR web site.

Elsevier requires that any such use of copyright material be approved by the copyright owner and to this end, I am attaching the current version of the table to be inserted in my chapter. This has been extracted verbatim from your web site document. You will also see that I have credited ONR with the ownership of the wording in the subtitle.

Can you please confirm that this is acceptable to you or suggest any changes you wish to be made?

Also, please confirm that the wording in the subtitle is acceptable to you or suggest any other wording that you would prefer.

Lastly, in reading about the events leading to the incident, I have found many references to the memorandum sent to the former UKAEA by Dr Tony Walker in 1998 in which he is critical of many aspects of the management and operation of the Fuel Cycle Area at Dounreay. While there are many references to this on the internet, I cannot find an actual copy. I therefore request under FOI a copy of the memorandum or a link to an appropriate web site where it may be found.

Information released

Re: copyright and licence condition wording:

ONR gives its permission for you to reprint the licence condition 36 with a credit to ONR as it is.

You may be aware that the text of the licence condition changed to its current form in July 2011. Prior to this date, the licence condition read:

Licence Condition 36: Control of organisational change

  1. The licensee shall make and implement adequate arrangements to control any change to its organisational structure or resources which may affect safety.
  2. The licensee shall submit to the Executive for approval such part or parts of the aforesaid arrangements as the Executive may specify.
  3. The licensee shall ensure that once approved no alteration or amendment is made to the approved arrangements unless the Executive has approved such alteration or amendment.
  4. The aforesaid arrangements shall provide for the classification of changes to the organisational structure or resources according to their safety significance. The arrangements shall include a requirement for the provision of adequate documentation to justify the safety of any proposed change and shall where appropriate provide for the submission of such documentation to the Executive.
  5. The licensee shall if so directed by the Executive halt the change to its organisational structure or resources and the licensee shall not recommence such change without the consent of the Executive.

Re: memorandum sent to the former UKAEA by Dr Tony Walker

Please find attached a copy of the 1998 HSE Memorandum.

The information supplied to you continues to be protected by the Copyright, Designs and Patents Act 1988. You may re-use this information (not including logos) free of charge in any format or medium, under the terms of the Open Government Licence. To view this licence, visit or write to the Information Policy Team, The National Archives, Kew, London TW9 4DU, or e-mail:

Information you receive which is not subject to Crown Copyright continues to be protected by the copyright of the person, or the organisation, from which the information originated. You must ensure that you gain their permission before reproducing any third party (non Crown Copyright) information.

Exemptions applied


PIT (Public Interest Test) if applicable