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Question follow-through · 93936

Nuclear Weapons: Decommissioning

To ask the Secretary of State for Defence, what quantity of plutonium has been recovered from the dismantling of the Mk4A Trident warheads since the start of the dismantlement programme; what proportion has been re-cycled and re-used in new warheads; wher

answeredMinistry of Defence

About this written question

A written question asks a government minister for information in writing. Parliament publishes the question and any answer.

Answering body
Ministry of Defence
Tabled
24 Nov 2025
Target answer date
26 Nov 2025
Answer
7 Jan 2026 · 44 calendar days after tabling

Elapsed calendar days describe the record timeline, not whether Parliament considers an answer on time.

More questions by this MP on Defence and foreign affairs

Shared topic keywords suggest a connection; they do not establish a follow-up.

Votes on this topic

These Commons divisions share a topic label. The question did not necessarily lead to a vote.

Recorded timeline

  1. 24 Nov 2025

    Question tabled

    To ask the Secretary of State for Defence, what quantity of plutonium has been recovered from the dismantling of the Mk4A Trident warheads since the start of the dismantlement programme; what proportion has been re-cycled and re-used in new warheads; wher

  2. 26 Nov 2025

    Target answer date

    Date supplied by the official written-questions record.

  3. 7 Jan 2026

    Answer published

    I refer the hon. Member to the answer provided to the hon, Member for Newton Abbott (Martin Wrigley) on 1 September 2025 to Question 70223.

Open official record

Official data retrieved 28 Sept 2026.

Later records

Possible follow-up questions

Strong links require the same MP, department and exact heading. Other same-department questions are shown as unreviewed candidates, not as confirmed follow-ups. No debate link is asserted unless a stable source relationship exists.

Unreviewed candidateSame MP and department; topic relationship is unreviewed

Nuclear Weapons: Proliferation

25 Nov 2025 · To ask the Secretary of State for Defence, whether his department has commissioned an assessment on the compliance of the British use of Epure with Article One of the 1968 Nuclear Non-Proliferation Treaty.

Unreviewed candidateSame MP and department; topic relationship is unreviewed

Nuclear Weapons

25 Nov 2025 · To ask the Secretary of State for Defence, what bi-lateral working groups have been created between AWE and the French counterparts on the development of the Astraea nuclear warhead.

Unreviewed candidateSame MP and department; topic relationship is unreviewed

France: Military Alliances

25 Nov 2025 · To ask the Secretary of State for Defence, what has been the cost of implementation of the Anglo-French TEUTATES treaty since its inception in 2010; and whether French military personnel are based at AWE Aldermaston or AWE Burghfield as part of the treaty

Unreviewed candidateSame MP and department; topic relationship is unreviewed

Nuclear Weapons: Research

25 Nov 2025 · To ask the Secretary of State for Defence, whether the US Los Alamos National nuclear laboratory and Lawrence Livermore national laboratory have played a role in the research, design or development of the British Astraea nuclear warhead.

Unreviewed candidateSame MP and department; topic relationship is unreviewed

USA: Military Alliances

25 Nov 2025 · To ask the Secretary of State for Defence, how many U.K.-US working groups currently exist pursuant to the 1958 Mutual Defense Agreement on Atomic Energy Matters; what subjects do they cover; and what is the annual cost of servicing these working groups.

Unreviewed candidateSame MP and department; topic relationship is unreviewed

Comprehensive Test Ban Treaty

25 Nov 2025 · To ask the Secretary of State for Defence, if he will publish the review made of the Comprehensive Test Ban Treaty (CTBT) methodology as mentioned has been undertaken last year in the Defence Nuclear Enterprise 2025 annual report.

Unreviewed candidateSame MP and department; topic relationship is unreviewed

Clyde Naval Base: Radioactive Waste

25 Nov 2025 · To ask the Secretary of State for Defence, if the new Establishment Management Plan at HMNB Clyde will address and remedy radioactive leaks into the loch.

Unreviewed candidateSame MP and department; topic relationship is unreviewed

Devonport Dockyard: Repairs and Maintenance

25 Nov 2025 · To ask the Secretary of State for Defence, what is the projected cost of the infrastructural improvements at HMNB Devonport, Plymouth; when is the expected completion date; and whether the improvements involve the removal of radioactively contaminated equ

Unreviewed candidateSame MP and department; topic relationship is unreviewed

Rosyth Dockyard: Repairs and Maintenance

25 Nov 2025 · To ask the Secretary of State for Defence, what is the projected cost of the planned infrastructural improvements at Rosyth Dockyard; whether the improvements will require the removal from the dockyard of radioactively contaminated equipment.

Unreviewed candidateSame MP and department; topic relationship is unreviewed

Iran: Military Bases

23 Mar 2026 · To ask the Secretary of State for Defence, if he will bring forward a voteable motion on the use of UK military bases in connection with operations related to the escalation in the Middle East.

Unreviewed candidateSame MP and department; topic relationship is unreviewed

Iran: Armed Conflict

25 Mar 2026 · To ask the Secretary of State for Defence, if he will publish any legal advice on UK participation in military operations connected to the conflict in the Middle East.

Unreviewed candidateSame MP and department; topic relationship is unreviewed

Written question 30098

15 Sept 2026 · To ask the Secretary of State for Defence, what discussions he has had with the Leader of the House on the timetable for tabling a motion to establish a committee on the Defence Nuclear Enterprise.