Office for Nuclear Regulation

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Thorp - Planned licence compliance inspection covering LC36; Organisational Capability

Executive summary

Purpose of Intervention

In accordance with the Office for Nuclear Regulation's (ONR's) Sellafield Strategy, each year ONR performs a series of planned compliance inspections of selected licence conditions, targeted at those facilities with significant importance to nuclear safety.

One such licence condition inspection was carried out to assess Sellafield Ltd.'s (SL's) compliance with licence condition (LC) 36 - Organisational Capability. This inspection focussed on Thorp's proposed organisational resources and structure for Post Operational Clean Out (POCO). Thorp's current plans are that these organisational changes will come into effect in April 2019.

Interventions Carried Out by ONR

ONR Inspectors carried out a planned compliance inspection against licence condition 36. The focus of the inspection was on the organisational changes associated with Thorp's transition into POCO. The inspection was carried out in advance of SL's application of its Management of Organisational Change (MOC) process, to gain confidence in the planning basis and rationale for the changes.

Explanation of Judgement if Safety System Not Judged to be Adequate

N/A as this was not a safety systems inspection.

Key Findings, Inspector's Opinions and Reasons for Judgements Made

LC 36 Inspections

From the inspection sample, for this stage in the preparations for Thorp POCO, SL were able to demonstrate that the organisation change appeared to have been adequately scoped with due account taken of simultaneous operations and POCO activity, support function requirements and SL organisational design principles. Consequently we gained confidence in the rationale adopted at this planning stage.

Conclusion of Intervention

On the basis of the evidence gathered during the inspection, we judged that an inspection ratings of GREEN is appropriate for compliance against LC 36. This is because we found SL to be broadly complaint with its corporate arrangements for LC 36 for this planning stage for Thorp POCO preparations. However, in future we would encourage SL to employ their LC 36 arrangements earlier in the planning process to benefit from the structured approach this would facilitate.