Office for Nuclear Regulation’s cover photo
Office for Nuclear Regulation

Office for Nuclear Regulation

Public Safety

Our mission is to protect society by securing safe nuclear operations.

About us

ONR independently regulates nuclear safety and security at 35 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. Comment policy: as a national regulator, it is important that we maintain our independence. As part of this, we moderate our social media presence and may need to review comments if necessary, for example where our impartial role in an investigation may be compromised. Where possible we will contact commenters to inform them of this decision. If you wish to discuss a moderation decision made on our social media channels, please get in touch at contact@onr.gov.uk.

Website
http://www.onr.org.uk/
Industry
Public Safety
Company size
501-1,000 employees
Headquarters
Merseyside
Type
Government Agency
Founded
2014
Specialties
Nuclear regulation, Nuclear safety, Nuclear security, Nuclear safeguards, Nuclear site health and safety, and Regulation of transport of nuclear materials

Locations

  • Primary

    Redgrave Court, Merton Road

    Bootle

    Merseyside, L20 7HS, GB

    Get directions

Employees at Office for Nuclear Regulation

Updates

  • Office for Nuclear Regulation reposted this

    We have launched a Call for Evidence to review the Lifting Operations and Lifting Equipment Regulations (LOLER) and the Pressure Systems Safety Regulations (PSSR). This aims to simplify regulatory processes whilst maintaining workplace safety standards. We are looking for Industry stakeholders, professional bodies, and relevant organisations to take part in the Call for Evidence. Call for Evidence runs until 11 November. Find out more and take part: https://lnkd.in/etrpKPPH

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  • “During a rugby match you have to be able to pick yourself up all the time, do a lot of strategic thinking on the spot, and get along with lots of different people in high-pressure situations. This helps me manage moments of crisis or deadlines at work, particularly when working within a team."   In the latest edition of Our People, our regular series highlighting our staff and the work we do every day to help keep the nuclear industry safe and secure, we meet Grace Deane, Team Leader for Directorate Delivery Support in our Cheltenham office.   Alongside her role providing expert administrative, operational and logistical support to ensure our regulatory functions can run efficiently and effectively, Grace is a Premiership Rugby Union player for the Leicester Tigers.   Learn more about Grace's role, the skills rugby has taught her and how flexibility and an understanding manager support her ambitions in and out of work: https://lnkd.in/eascbFDm

    • Grace Deane in rugby training, with text reading "Our People – Grace Deane, Directorate Delivery Support Team Leader" and the ONR logo
  • Along with the Environment Agency, we’ve published our latest annual report detailing regulatory oversight of plans to develop a geological disposal facility (GDF) for the UK's higher activity radioactive waste: https://lnkd.in/eSm8E7YV   This year's report highlights the regulatory advice provided to Nuclear Waste Services (NWS) and updates on community engagement activities. Currently, community partnerships in Mid Copeland and South Copeland are exploring how a GDF could potentially work in their areas.   While construction of a GDF is still many years away, we’re actively working with NWS, the organisation tasked with delivering a GDF, to ensure future applications meet the highest safety, security and environmental standards.   What is geological disposal? It involves safely burying radioactive materials 200-1,000 metres underground in purpose-built facilities. This involves placing waste deep within suitable rock formations, creating lasting protection through physical barriers.   Find out more: https://lnkd.in/ebBfnR5i

    • Diagram of a GDF showing the surface facilities, access shaft, tunnel and disposal vaults, with text reading "ONR and Environment Agency publish joint annual GDF report" and the ONR logo.
  • Our inspectors recently participated in an international symposium focusing on global efforts to ensure radiological protection systems are fit for purpose. Chris Mogg, Nuclear Safety Inspector, and Gareth Thomas, Head of Profession for Radiation Protection and Criticality, attended the International Commission on Radiological Protection (ICRP) 8th International Symposium hosted by the Federal Authority for Nuclear Regulation (FANR) in Abu Dhabi (https://www.icrp.org/).   The event brought together more than 700 leading experts from 55 countries to discuss the ongoing review of the ICRP fundamental recommendations for the system of radiological protection (https://lnkd.in/exTeGM8G). These recommendations provide the key foundations for international safety standards, on which the UK’s regulations are based.   By participating in the symposium, Gareth and Chris had the opportunity to gather the latest information, influence current developments, participate in discussions and panel sessions, advocate for clear and proportionate revised recommendations, and exchange learning with international stakeholders including Werner Rühm, ICRP chair (pictured with Gareth and Chris).   Chris also attended an ICRP Committee 4 (Task Group 127) meeting on exposure situations and categories of exposure, while Gareth attended the main Committee 4 meeting as a representative of the Heads of the European Radiological protection Competent Authorities.   Read the ICRP’s memorandum explaining the system of radiological protection, aimed at helping experts, policy makers and the public understand and use the ideas with confidence: https://lnkd.in/gN7n73ip   Learn more about our Radiation Protection and Criticality specialism and its role in regulating the safety of the nuclear industry: https://lnkd.in/ezHbVAuq

    • Left to right: Chris Mogg, Werner Rühm and Gareth Thomas at ICRP 2025
    • HERCA members at ICRP 2025
  • Our Annual Conference is now underway, with more than 140 attendees from across the UK nuclear industry and beyond.   The day began with an address by Michael Finnerty, our Chief Executive/Chief Nuclear Inspector, followed by flash presentations showcasing the safe delivery of nuclear site projects enabled by our regulation.   Following a panel discussion on how regulators can enable and support growth while protecting workers and the public, the afternoon will focus on strengthening collaboration across the industry and with ONR.   We're looking forward to interacting with colleagues, sharing ideas and learning from one another throughout the day 💡

    • Mike Finnerty speaking to a room full of conference attendees
  • We welcome the completion of the first stage of retrievals of Intermediate Level Waste from the shielded storage bays at the Berkeley nuclear licensed site.   This is a complex project involving the radioactive waste in small aluminium containers being removed and placed into a new purpose-built interim on-site storage at this decommissioning site in Gloucestershire.   Our inspectors ensured compliance with site licence conditions and that the operation was correctly controlled and supervised with adequately trained Nuclear Restoration Services workers following valid and pre-prepared safety procedures. The retrievals adopted innovative mechanical engineering solutions to save time and money which was overseen and permissioned by the regulator.   Paul Jenneson, our Berkeley Site Inspector, said: "We continue to work with Nuclear Restoration Services, adopting an enabling stance so Berkeley can be decommissioned in a timely manner.   "ONR is committed to regulating the ongoing clean-up of all nuclear decommissioning sites - safely and securely." #enablingregulation #progressivedecommissioning #safety #security

    The shielded area retrievals project at Berkeley site has reached a major milestone in its mission to safely manage intermediate level waste (ILW) - once home to both Berkeley Power Station and Berkeley Laboratories. The team has successfully disposed of the first half of the isocans - aluminium containers holding legacy waste from post irradiation experimentation - using bespoke components designed by mechanical systems engineer, James Lamb. His innovation saved time and money while keeping the solution compatible with legacy equipment. Stakeholder management has been paramount to the success of this work, involving both central NRS teams and the Office for Nuclear Regulation (ONR). Following agreement to dispose of this challenging waste, ONR Inspector, Paul Jenneson, returned to Berkeley site to observe how disposal was progressing. With six Type VI ductile cast iron container's (DCICs) and three MOSAIK boxes filled, the team is now preparing to tackle the next phase of waste retrieval. Berkeley Site Director Mike Heaton shared: "The complexity of the waste and the challenge to retrieve it has required tremendous tenacity and teamwork. This is a great example of what we can achieve when we work together to overcome the issues." 👏 Huge congratulations to everyone involved! #Berkeley #NuclearDecommissioning #Innovation #EngineeringExcellence #Teamwork #NRS

  • We're currently recruiting for five inspector roles across our specialisms, as well as two roles in our corporate directorates:   - Interim Director of Finance - Secondment up to 12 months (closes 21/10) - Band 3 Nuclear Safety Inspector - Chemistry (closes 28/10) - Band 3 Nuclear Safety Inspector - Quality Management (closes 28/10) - Band 3 Nuclear Safety Inspector - Radiation Protection (closes 28/10) - Band 3 Cyber Security and Operational Resilience Inspector (closes 28/10) - Band 3 Nuclear Safety Inspector - Supply Chain Management (closes 28/10) - Band 3 Policy Advisor – fixed-term appointment up to 12 months (closes 29/10)   Find all the details here: http://jobs.onr.org.uk   You can also learn more about what it's like to work at ONR in 'Our People', a regular feature showcasing our staff and the work we do every day to help keep the nuclear industry safe and secure: https://lnkd.in/enMBRVzT

    • Aerial view of colleagues working together, with text reading "Shape the future of nuclear: explore our latest career opportunities" and the ONR logo.

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