The Office for Nuclear Regulation is responsible for regulation of nuclear safety and security across the UK.

Our mission is to provide efficient and effective regulation of the nuclear industry, holding it to account on behalf of the public.

ONR independently regulates nuclear safety and security at 36 nuclear licensed sites in the UK. We also regulate transport and ensure that safeguards obligations for the UK are met. Our duty is to ensure that the nuclear industry controls its hazards effectively, has a culture of continuous improvement and maintains high standards.

The nuclear industry is undergoing rapid change and our role as a regulator is vital in ensuring new nuclear facilities are designed, built and operated to the highest standards, and in a manner that improves public confidence without compromising safety or security.

We also oversee the decommissioning of nuclear sites and cooperate with international regulators on safety and security issues of common concern, including associated research.

Our work is critical to the protection of society at large so it is important that we do it with rigour, diligence and with an appropriate level of assurance.

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