REPPIR is the UK framework requiring organisations that work with significant sources of ionising radiation to assess hazards, plan for radiological emergencies and provide specified information to the public. In legal practice it refers to The Radiation (Emergency Preparedness and Public Information) Regulations 2019, which replaced the 2001 Regulations.
Key features include: radiation risk assessments; notification to and engagement with the appropriate regulator (Office for Nuclear Regulation for GB nuclear sites; Health and Safety Executive for other GB premises; Health and Safety Executive for Northern Ireland in NI); determination of off‑site emergency planning areas; operator on‑site emergency plans; local authority off‑site emergency plans; prior and ongoing public information; co‑operation and periodic testing.
Across Great Britain (England & Wales and Scotland), REPPIR 2019 applies. Northern Ireland has the Radiation (Emergency Preparedness and Public Information) Regulations (Northern Ireland) 2019, imposing substantially similar duties. Ireland does not use the term REPPIR; equivalent obligations arise under national regulations implementing the EU Basic Safety Standards, overseen by the Environmental Protection Agency and local authorities.
Practitioners encounter REPPIR in nuclear regulation, health and safety, environmental law, land‑use planning and due diligence, particularly where emergency planning zones and public information duties affect operations, transactions and development control.