Office for Nuclear Regulation

Safeguards and nuclear material accountancy in the UK

ONR is now the safeguards regulator, and operates the UK State System of Accountancy for, and Control of, Nuclear Materials.

The transitional provisions set out in Schedule 4 of the Nuclear Safeguards (EU Exit) Regulations 2019 (NSR2019) came into force at 2300 GMT on 31 December 2020. 

We will be updating this page in the coming weeks.

Updated on 1 January 2021.