Office for Nuclear Regulation

Nuclear safeguards

ONR is the UK’s safeguards regulator, and part of the UK State System of Accounting for, and Control of, Nuclear Materials.

Nuclear safeguards are measures to verify that countries comply with international obligations not to use nuclear materials from civil nuclear programmes for non-peaceful purposes.

ONR’s safeguards function enables the UK to meet its international safeguards obligations and implements domestic legislation.

As the regulator, we must:

Annual reports

If you have any questions about safeguards reporting duties, please contact your site inspector/s, or email the team at or by post to ONR Safeguards, 4N3 Redgrave Court, Merton Road, Bootle L20 7HS.

See also