Office for Nuclear Regulation

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IRR99 inspection at the Devonport Royal Dockyard Limited Licensed Site

Executive summary

Purpose of intervention

In accordance with ONR programme of planned inspections to examine Control of Radiation Exposure (CORE) across a number of nuclear sites (under Regulation 8 of the Ionising Radiations Regulations, IRRs 1999), an ONR specialist radiological protection Inspector conducted an inspection of control of radiation doses on the Devonport Naval Base site.  To ensure consistency with previous ONR CORE inspections, the inspection was conducted using a standard ONR questionnaire and follow-up question and answer sessions with the duty holder. 

Interventions Carried Out by ONR

The inspection was conducted on the Authorised HMNB site with the Defence Nuclear Safety Regulator (DNSR) site inspector in attendance, and consisted of:

The aspects examined included: ALARP strategy; dose limits, targets and budgets; trending and analysis; learning from experience; targeting of ALARP measures; work scheduling; provision of information and training for workers; and benchmarking and sharing relevant good practice. 

Explanation of Judgement if Safety System Not Judged to be Adequate

Not applicable.

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

HMNB Devonport’s operations in radiation protection are consistent with several examples of relevant good practice in the following areas:

Some minor areas for potential improvement were identified as follows:

Conclusion of Intervention

The arrangements inspected were deemed overall to be adequate and no issues were identified that were deemed to adversely impact on radiological safety.