House of Commons · Written Ministerial Statement
The United Kingdom’s Accession to the Convention on Supplementary Compensation for Nuclear Damage (CSC)
13 October 2025 · Department for Energy Security and Net Zero
Proposed by Michael Shanks Lab Rutherglen
Summarised by AI from the official record, so it can contain mistakes.
At a glance
Key points
- The United Kingdom deposited its instrument of accession to the Convention on Supplementary Compensation for Nuclear Damage (CSC) with the IAEA on October 3, 2025.
- The CSC will enter into force in the UK on January 1, 2026.
- The UK government has amended existing laws to comply with the requirements of the CSC.
Issue summary
The statement discusses the United Kingdom's accession to the Convention on Supplementary Compensation for Nuclear Damage (CSC), an international nuclear third party liability treaty.
Action requested
The UK deposited its instrument of accession with the IAEA on October 3, 2025, and the CSC will enter into force in the UK on January 1, 2026. The government has implemented necessary domestic legislation to comply with the CSC through amendments to existing laws.
Key facts
- On 03 October 2025, the UK deposited its instrument of accession with the International Atomic Energy Agency (IAEA).
- The CSC will enter into force in the UK on 01 January 2026.
- Minor technical changes were made by the Nuclear Installations (Compensation for Nuclear Damage) (Amendment) Regulations 2025.
- At present, assuming UK membership of the convention, the shared international fund would be valued at approximately £120m, with the UK’s contribution at approximately £6.6m.