Office for Nuclear Regulation

A Williamson Ltd - Compliance inspection Transport of Radioactive Materials (Class 7 dangerous goods)

Executive summary

ONR regulates the civil transport of radioactive material by road, rail and inland waterway in Great Britain (GB). The ONR Transport Competent Authority (TCA) is responsible for delivering non-nuclear transport inspection and enforcement activities. This particular inspection forms part of that delivery function with reference to Carriage of Dangerous Goods and Use of Transportable Pressure Equipment Regulations 2009 (CDG), the Ionising Radiations Regulations 2017 (IRR17) and the Radiation (Emergency Preparedness and Public Information) Regulations 2019 (REPPIR19). CDG refers to the European Agreement concerning the International Carriage of Dangerous Goods by Road (ADR) and ONR used ADR 2019 during this inspection (

Purpose of Intervention

The purpose of the inspection was to review A Williamson Ltd’s (AWL) arrangements associated with the road transport of radioactive material. ONR carried out this inspection virtually using MS Teams on 9th March 2021.

Interventions Carried Out by ONR

The chosen inspection sample included:

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

The inspector sampled the arrangements deployed by AWL for the safe transport of radioactive materials, including the associated arrangements for protecting workers against the effects of ionising radiations and reducing risks as low as reasonably practicable (ALARP). 

The inspector compared relevant statutory requirements with both prescribed arrangements and actual practice.  The inspector identified a number of examples of the duty holder meeting relevant good practice in reducing risk to levels that are ALARP, including having a Radiation Risk Assessment (RRA), associated Local Rules, Security Plans, Contingency Plans an appointed RPA and DGSA.

The inspector identified a number of non-compliances and discussed these during the inspection, which included AML’s transport Radiation Risk Assessment does not consider all the matters set out in the Approved Code of Practice (ACoP) accompanying IRR17, there was no assessment of whether an emergency plan is required under CDG09 and there was no evidence of AML providing specific training for dealing with High Activity Sealed Sources (HASS).

During the inspection, the inspector also suggested certain improvements to transport practices that would be prudent for AWL to consider.

Conclusion of Intervention

AWL demonstrated that for certain aspects of its operations it met the requirements of CDG, ADR, IRR17 and REPPIR19. Based on the inspection sample, the inspector identified three non-compliances with relevant legislation and suggested four improvements. The inspector discussed these during the inspection and AWL gave a commitment to address them.

The inspector gave AWL until 2nd April 2021 to provide ONR either with evidence that the findings have been resolved, or an appropriate resolution plan with timescales for completion.

For this intervention, the inspector gave an inspection rating of AMBER, due to there being specific legal requirements not met, but without prejudice to overall nuclear safety or security objectives.

ONR will monitor the identified non-compliances through its Issues Management arrangements.