Office for Nuclear Regulation

Planned Compliance Inspection

Executive summary

Purpose of intervention

I carried out planned inspections of compliance with licence condition (LC) 4 (restrictions on nuclear matter on the site), LC 7 (incidents on the site), LC 22 (modification or experiment on existing plant) and LC 35 (decommissioning) in accordance with the 2015/16 integrated inspection strategy (IIS) for Dounreay, to provide confidence that the licensee is controlling its hazards properly and complying with its statutory obligations. 

Interventions Carried Out by ONR

I inspected a number of stores of fissile material on the site; discussed the licensee’s process for learning from experience at the reactors (focussing specifically on learning from near-miss events and the like); inspected the licensee’s arrangements for moving between stages of a large or complex modification; and examined the process that is being followed in deriving a revised programme for work in the Reactors Directorate.

Explanation of Judgement if Safety System Not Judged to be Adequate


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

I am satisfied that the licensee is meeting ONR’s expectations with respect to the storage of nuclear matter in the areas I inspected.

I consider that the licensee was able to adequately demonstrate that it is making effective use of the information it is collecting from near misses and behavioural observations to identify and address areas of potential concern.

I am content that the licensee has a process which provides appropriate control over staged modifications.  The process is flexible, allowing for greater scrutiny of more hazardous modifications, and provides ONR with a variety of ways to place hold points in work programmes to allow for a flexible permissioning approach.

I consider that the licensee is giving appropriate consideration to safety and practicability in deriving its forward strategy and programme for decommissioning of the reactors.

Conclusion of Intervention

I did not identify any matter impacting on nuclear safety that required immediate regulatory action.