United Kingdom · Question · Written question
UIN 70223
Nuclear Weapons: Decommissioning
Introduced
22 July 2025
Last action
1 September 2025 · Answer
Status
Answered
Sponsors
—
Subjects
Discovery layer
Source updated
1 September 2025
Summary
To ask the Secretary of State for Defence, how much plutonium has been recovered as part of the Mk4A Trident warhead dismantlement programme; what proportion has been re-used in current warhead systems; where remaining material is stored; and what the tot
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Timeline
22 July 2025
Written question
To ask the Secretary of State for Defence, how much plutonium has been recovered as part of the Mk4A Trident warhead dismantlement programme; what proportion has been re-used in current warhead systems; where remaining material is stored; and what the tot
Source: Commons
1 September 2025
Answer
The Mk4 warhead components are being disassembled and re-used, recycled or safely disposed of at the Atomic Weapons Establishment (AWE) Burghfield site, following the transition to the Mk4A warhead in 2023. The cost of disassembling our nuclear warheads a...
Source: Written answer
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- · Ministry of Defence · Answering body
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Sources
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- Official source: https://questions-statements.parliament.uk/written-questions/detail/2025-07-22/70223
- Open data entity: https://questions-statements-api.parliament.uk/api/writtenquestions/questions/1826316
- uk · wq-1826316 · source updated 1 September 2025