Office for Nuclear Regulation

Sellafield Site – Inspection ID: 52385

Executive summary

Date(s) of inspection:

June 2023

Aim of inspection

The purpose of this inspection was to gain assurance that Spent Fuel Services (SFS) and operations within B311 are compliant with the Ionising Radiations Regulations 2017 (IRR17) and associated Sellafield Limited procedures and standards for work.

Subject(s) of inspection

  • IRR17 – Rating: GREEN

Key findings, inspector’s opinions and reasons for judgement made

I, the Site Inspector for Spent Fuel Services, a Specialist Radiation Protection Advisor Inspector, and a trainee Specialist Radiation Protection Advisor Inspector undertook an Ionising Radiations Regulations 2017 (IRR17) inspection at the Spent Fuel Services (SFS) Operating Unit at the Sellafield Site.

The inspection focussed on compliance with IRR17 across SFS and we undertook a plant walkdown of the Fuel Handling Plant.

We found that SFS is broadly compliant with the requirements of IRR17 and there were no issues that required immediate regulatory attention. Regulatory advice was given in relation to radiation risk assessments and there was a minor maintenance shortfall identified and regulatory advice was also given over this matter.

We rated the inspection as Green (no formal action).


There were no significant gaps in compliance with those requirements of the regulations of IRR17 examined, and it was acknowledged that progress was being made at a site level by Sellafield Ltd in the further development of the Regulation 8 radiation risk assessment. Positive work by the safety team and the RPIG were maintaining control of radiological conditions and monitoring trends across the facility. All observations noted were discussed directly with Sellafield Ltd, with Sellafield Ltd agreeing to raise a number of condition reports in response.

We rate the inspection as Green (no formal action required). The Dutyholder accepted our inspection feedback.