Bill · started in the Commons

Diego Garcia Military Base and British Indian Ocean Territory Bill

A Bill to give effect to, and make provision in connection with, an agreement between the governments of the United Kingdom and the Republic of Mauritius concerning the Chagos Archipelago.

In progress Current stage: Consideration of Commons amendments and / or reasons (Lords)

The story so farThe Diego Garcia Military Base and British Indian Ocean Territory Bill was introduced in the House of Commons on 15 July 2025 by Mr David Lammy (Labour). It is now at the "Consideration of Commons amendments and / or reasons" stage in the House of Lords. The two Houses are now agreeing the final wording, sending amendments back and forth until both accept the same text; the bill then goes for Royal Assent.

Sponsors

Progress through Parliament

  1. 1st reading Commons 15 Jul 2025
  2. 2nd reading Commons 9 Sep 2025
  3. Programme motion Commons 9 Sep 2025
  4. Committee of the whole House Commons 20 Oct 2025
  5. 3rd reading Commons 20 Oct 2025
  6. 1st reading Lords 21 Oct 2025
  7. 2nd reading Lords 4 Nov 2025
  8. Committee stage Lords 18 Nov to 25 Nov 2025
  9. Report stage Lords 5 Jan 2026
  10. 3rd reading Lords 12 Jan 2026
  11. Programme motion Commons 20 Jan 2026
  12. Consideration of Lords amendments Commons 20 Jan 2026
  13. Consideration of Commons amendments and / or reasons Lords Current

Votes on this bill

Recorded Commons divisions on this bill, in the order they happened. Each links to who voted which way.

9 Sep 2025 Reasoned Amendment 116 to 333 Rejected
9 Sep 2025 Second Reading 330 to 179 Passed
20 Oct 2025 Committee: Amendment 7 174 to 321 Rejected
20 Oct 2025 Committee: Amendment 9 83 to 319 Rejected
20 Oct 2025 Committee: Clause 2 stand part 318 to 174 Passed
20 Oct 2025 Committee: New Clause 1 172 to 322 Rejected
20 Oct 2025 Third Reading 320 to 171 Passed
20 Jan 2026 Motion to disagree with Lords Amendment 1 344 to 182 Passed
20 Jan 2026 Motion to disagree with Lords Amendment 5 347 to 185 Passed
20 Jan 2026 Motion to disagree with Lords Amendment 6 347 to 184 Passed

Source: the official bill page. Last updated 30 Apr 2026.