Office for Nuclear Regulation

Category: Nuclear decommissioning and commercial plants

Decommissioning dutyholder moves out of enhanced regulatory attention after security improvements

June 30, 2022 - Security improvements made during last 12 months


IAEA decommissioning event comes to Wales

June 17, 2022 - ONR set to host COMDEC meeting


Hunterston B moves into defuelling phase

January 7, 2022 - Defuelling phase for Hunterston B


ONR de-licenses Cardiff nuclear site

December 13, 2019 - This is the first time ONR has completely de-licensed a site


Operational guidance – Decommissioning

September 27, 2016 -


Sellafield decommissioning milestone

November 24, 2015 - Arrival of a key piece of decommissioning kit


Have your say on Rosyth submarine decommissioning

January 22, 2014 - ONR consults on application to decommission submarines