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Diego Garcia Military Base and British Indian Ocean Territory Bill

Government Bill

Originated in the House of Commons, Session 2024-26

Bill (7)

Full text of the Bill as introduced and further versions of the Bill as it is reprinted to incorporate amendments (proposals for change) made during its passage through Parliament.

HL Bill 163 Commons Reasons
21 January 2026
Lords
Bill 364 2024-26 (Lords Amendments)
13 January 2026
Commons
21 October 2025
Lords
Bill 285 2024-25 (as introduced)
15 July 2025
Commons
Bill 285 2024-25 (as introduced) - large print
15 July 2025
Commons
Bill 285 2024-25 (as introduced) - xml download
15 July 2025
Commons

Documents to explain the purpose of the Bill.

Bill 364 EN 2024-26 (Lords Amendments)
19 January 2026
Commons
Bill 364 EN 2024-26 - large print (Lords Amendments)
19 January 2026
Commons
21 October 2025
Lords
Bill 285 EN 2024-25
15 July 2025
Commons
Bill 285 EN 2024-25 - large print
15 July 2025
Commons

In the House of Commons, amendments are grouped together so that amendments relating to a particular topic or issue are discussed together.

Grouping of Lords Amendments by Secretary Yvette Cooper and Selection of Motions by Mr Speaker - 20 January 2026
20 January 2026
Commons
Grouping of Lords Amendments by Secretary Yvette Cooper and Selection of Motions by Mr Speaker - large print - 20 January 2026
20 January 2026
Commons
Chairman of Ways and Means’s provisional grouping and selection of amendments - 20 October 2025
20 October 2025
Commons
Chairman of Ways and Means’s provisional grouping and selection of amendments - large print - 20 October 2025
20 October 2025
Commons

The Government provide a delegated powers memorandum for all public (including hybrid) bills to justify the delegation of powers, usually to Ministers, in the bill. For reports of the Delegated Powers and Regulatory Reform Committee, see “Select Committee Reports”.

Diego Garcia Military Base and British Indian Ocean Territory Bill: Delegated Powers Memorandum
22 October 2025
Lords
Delegated Powers Memorandum from the Foreign, Commonwealth and Development Office
15 July 2025
Commons

Full list of amendment papers relating to the Bill. Individual amendment papers will be replaced with consolidated lists before the amendments are discussed. Page and line references in amendment papers refer to the PDF version of the Bill.

HL Bill 163(c) Motions for Consideration of Commons Reasons
23 January 2026
Lords
HL Bill 163(b) Motion for Consideration of Commons Reasons
22 January 2026
Lords
HL Bill 163(a) Motions for Consideration of Commons Reasons
21 January 2026
Lords
Commons Consideration of Lords Amendments as at 20 January 2026
20 January 2026
Commons
Commons Consideration of Lords Amendments as at 20 January 2026 - large print
20 January 2026
Commons
Notices of CCLA Amendments as at 19 January 2026
19 January 2026
Commons
Notices of CCLA Amendments as at 19 January 2026 - large print
19 January 2026
Commons
Notices of CCLA Amendments as at 16 January 2026
16 January 2026
Commons
Notices of CCLA Amendments as at 16 January 2026 - large print
16 January 2026
Commons
Notices of CCLA Amendments as at 15 January 2026
15 January 2026
Commons
Notices of CCLA Amendments as at 15 January 2026 - large print
15 January 2026
Commons
HL Bill 158-I Amendment for Third Reading
9 January 2026
Lords
HL Bill 158 Running list of amendments - 8 January 2025
8 January 2026
Lords
HL Bill 139-R-I(a) Amendments for Report (Supplementary to the Marshalled List)
2 January 2026
Lords
HL Bill 139-R-I Marshalled list for Report
23 December 2025
Lords
HL Bill 139-R Running list of amendments - 22 December 2025
22 December 2025
Lords
HL Bill 139-R Running list of amendments - 18 December 2025
18 December 2025
Lords
HL Bill 139-R Running list of amendments - 16 December 2025
16 December 2025
Lords
HL Bill 139-II(a) Amendments for Committee (Supplementary to the Second Marshalled List)
24 November 2025
Lords
HL Bill 139-II Second marshalled list for Committee
21 November 2025
Lords
HL Bill 139-I(c) Amendments for Committee (Supplementary to the Marshalled List)
20 November 2025
Lords
HL Bill 139-I(b) Amendments for Committee (Supplementary to the Marshalled List)
19 November 2025
Lords
HL Bill 139-I(a) Amendments for Committee (Supplementary to the Marshalled List)
17 November 2025
Lords
HL Bill 139-I Marshalled list for Committee
14 November 2025
Lords
HL Bill 139 Running list of amendments - 13 November 2025
13 November 2025
Lords
HL Bill 139 Running list of amendments - 5 November 2025
5 November 2025
Lords
Committee of the whole House Amendments as at 20 October 2025
20 October 2025
Commons
Committee of the whole House Amendments as at 20 October 2025 - large print
20 October 2025
Commons
Notices of Amendments as at 17 October 2025
17 October 2025
Commons
Notices of Amendments as at 17 October 2025 - large print
17 October 2025
Commons
Notices of Amendments as at 16 October 2025
16 October 2025
Commons
Notices of Amendments as at 16 October 2025 - large print
16 October 2025
Commons
Notices of Amendments as at 15 October 2025
15 October 2025
Commons
Notices of Amendments as at 15 October 2025 - large print
15 October 2025
Commons
Notices of Amendments as at 14 October 2025
14 October 2025
Commons
Notices of Amendments as at 14 October 2025 - large print
14 October 2025
Commons
Notice of Amendments as at 10 October 2025
10 October 2025
Commons
Notice of Amendments as at 10 October 2025 - large print
10 October 2025
Commons

Minutes of the Reasons Committee held in the House of Commons to consider Lords Amendments to a Bill

Minutes of the Committee to draw up Reasons for disagreeing to Lords Amendments - 20 January 2026
20 January 2026
Commons

Details of proceedings in Public Bill Committee or Committee of the whole House, on any report (consideration) stage, and on any consideration of Lords Amendments or any subsequent Lords Messages. The documents contain the text of amendments considered at each sitting and show whether it was agreed to, negatived (not agreed), not called, not moved or withdrawn.

Proceedings on consideration of Lords Amendments as at 20 January 2026
20 January 2026
Commons
Committee of the whole House Proceedings as at 20 October 2025
20 October 2025
Commons

House of Commons Library and House of Lords Library briefing papers aim to be politically impartial, containing factual information as well as a range of opinions on each subject. Briefing papers on Bills are produced before Second Reading and, in the Commons, after Committee Stage.

Diego Garcia Military Base and British Indian Ocean Territory Bill: Consideration of Lords amendments
19 January 2026
Commons
Diego Garcia Military Base and British Indian Ocean Territory Bill
30 October 2025
Lords
2025 treaty on the British Indian Ocean Territory/Chagos Archipelago
8 September 2025
Commons
Diego Garcia Military Base and British Indian Ocean Territory Bill 2024-25
5 September 2025
Commons

The following select committee reports have been identified as relevant to the debate on the Bill.

43rd Report of the Delegated Powers and Regulatory Reform Committee
23 December 2025
Lords
14th Report of the Constitution Committee
20 November 2025
Lords
37th Report of the Delegated Powers and Regulatory Reform Committee
13 November 2025
Lords
9th Report from the International Agreements Committee
25 June 2025
Lords

The Government human rights memorandum is prepared by the Government to assist the Joint Committee on Human Rights with its scrutiny of the Bill’s human rights implications.

Human Rights Memorandum
15 July 2025
Commons

Occasionally questions put to government Ministers during debates on Bills in either the House of Commons or the House of Lords may be answered by the Minister saying 'I will write to the Hon Member'. Such “will write” replies are not published in Hansard but are placed in the Library of the House concerned and published on the Parliamentary website.

Letter from Lord Coaker to Baroness Goldie and Lord Lilley regarding how the Government has taken account of the Pelindaba Treaty in relation to the UK-Mauritius Agreement concerning the Chagos Archipelago, as discussed during the Report stage.
8 January 2026

Link to the relevant section in the Commons Hansard Daily Report

Commons 2nd reading

2nd reading - Commons Hansard link
9 September 2025
Commons

Commons Committee of the whole House

Committee of the whole House - Commons Hansard link
20 October 2025
Commons

Commons 3rd reading

3rd reading - Commons Hansard link
20 October 2025
Commons

Commons Consideration of Lords amendments

Consideration of Lords Amendments - Commons Hansard link
20 January 2026
Commons

Lords 1st reading

21 October 2025
Lords

Lords 2nd reading

4 November 2025
Lords

Lords Committee stage

Lords Hansard - part one
25 November 2025
Lords
Lords Hansard - part two
25 November 2025
Lords
Lords Hansard - part one
18 November 2025
Lords
Lords Hansard - part two
18 November 2025
Lords

Lords Report stage

5 January 2026
Lords

Lords 3rd reading

12 January 2026
Lords

Lords 1st reading

Minutes of Proceedings
21 October 2025
Lords

Lords 2nd reading

Minutes of Proceedings
4 November 2025
Lords

Lords Committee stage

Minutes of Proceedings - part one
25 November 2025
Lords
Minutes of Proceedings - part two
25 November 2025
Lords
Minutes of Proceedings - part one
18 November 2025
Lords
Minutes of Proceedings - part two
18 November 2025
Lords

Lords Report stage

Minutes of Proceedings
5 January 2026
Lords

Lords 3rd reading

Minutes of Proceedings
12 January 2026
Lords