The Office for Nuclear Regulation (ONR) is the UK’s nuclear regulator. It protects the public, the environment and national security by monitoring the safety of the UK’s nuclear operations. This includes nuclear power stations, defence sites involved with nuclear weapons and nuclear testing, and nuclear waste. Many of its key activities are linked to Sellafield, which stores more radioactive material per square metre than anywhere else in Europe and is considered one of the world’s most complex and hazardous nuclear sites. It was first set up in 2011 and became a statutory corporation (its current form) in 2014. Several of its details are now enshrined in the Energy Act 2013.
