Diego Garcia Military Base and British Indian Ocean Territory Bill — Amendment Paper: HL Bill 139-I(b) Amendments for Committee (Supplementary to the Marshalled List)

Diego Garcia Military Base and British Indian Ocean
Territory Bill
AMENDMENTS
TO BE MOVED
IN COMMITTEE OF THE WHOLE HOUSE
[Supplementary to the Marshalled List]
Clause 1
LORD KEMPSELL
_ Clause 1, page 1, line 7, at end insert “, subject to subsection (2A).
(2A) Sections 2 to 4 do not come into force until the Secretary of State has commissioned
a panel of independent experts to review the provisions in Article 5 of the Treaty
on the Marine Protected Area, and this panel has published a report.”
LORD KEMPSELL
_ Clause 1, page 1, line 7, at end insert “, subject to subsection (2A).
(2A) Sections 2 to 4 do not come into force until the Secretary of State has—
(a) sought to renegotiate paragraph 3(f) of Annex 1 of the Treaty to remove
the requirement to consult Mauritius on the placement of structures around
Diego Garcia if this is for the purposes of defence, and
(b) laid a report of any attempted or successful negotiation before both Houses
of Parliament.”
LORD KEMPSELL
_ Clause 1, page 1, line 7, at end insert “, subject to subsection (2A).
(2A) Sections 2 to 4 do not come into force until the Secretary of State has—
(a) sought to renegotiate paragraph 3(d) of Annex 1 of the Treaty to allow the
presence of military and non-military forces or personnel of third countries
on Diego Garcia without informing Mauritius if this is for the purposes
of defence, and
59/1 HL Bill 139—I(b)

(b) laid a report of any attempted or successful negotiation before both Houses
of Parliament.”
LORD KEMPSELL
_ Clause 1, page 1, line 7, at end insert “, subject to subsection (2A).
(2A) Sections 2 to 4 do not come into force until the Secretary of State has—
(a) sought to renegotiate Annex 1 of the Treaty to allow the United Kingdom
to derogate from the provisions of this part in case of war or other
emergency, and
(b) laid a report of any attempted or successful negotiation before both Houses
of Parliament.”
Clause 5
LORD LANSLEY
_ Clause 5, page 3, line 39, at end insert—
“(2A) An Order under this section which amends, repeals or revokes an Act may not
be made unless a draft of the instrument has been laid before and approved by a
resolution of each House of Parliament.”
LORD LANSLEY
_ Clause 5, page 3, line 40, leave out “An” and insert “Any other”
LORD LANSLEY
_ Clause 5, page 3, line 41, leave out from “Parliament” to end of line 3 on page 4
After Clause 5
LORD KEMPSELL
_ After Clause 5, insert the following new Clause—
“Chagossian contact group
Within one month of the day on which this Act is passed, the Secretary of State
must—
(a) establish a (or ensure that any) Chagossian contact group is active for the
time that the Treaty is in force, and
(b) ensure that the group meets quarterly.”
Diego Garcia Military Base and British Indian Ocean Territory
Bill
2

LORD KEMPSELL
_ After Clause 5, insert the following new Clause—
“Annual report: defence
Within 12 months of the day on which this Act is passed and annually thereafter,
the Secretary of State must publish a report reviewing the risks and emerging
threats to the operation of the Diego Garcia base, including from hostile states.”
LORD KEMPSELL
_ After Clause 5, insert the following new Clause—
“Prime Ministerial report: security risks
Within three months of the day on which this Act is passed, and annually
thereafter, His Majesty’s Armed Forces and the intelligence services must produce
a report for the Prime Minister on any threats and risks to the Diego Garcia Base
which—
(a) may arise because of the transfer of sovereignty under this Act, or
(b) could trigger a security review under Annex 1 of the Treaty.”
LORD KEMPSELL
_ After Clause 5, insert the following new Clause—
“Reporting requirement: communications from Mauritius
The Secretary of State must lay before Parliament the details of any
communications from the Government of Mauritius regarding the—
(a) existence of,
(b) effect of, or
(c) proposals relating to
any amendments to the Treaty.”
LORD KEMPSELL
_ After Clause 5, inserting the following new Clause—
“Report: resettlement
Within 12 months of the day on which this Act is passed and annually thereafter,
the Secretary of State must publish a report on progress made in the relation to
the resettlement of Chagossians under Article 6 of the Treaty.”
3 Diego Garcia Military Base and British Indian Ocean Territory
Bill

LORD KEMPSELL
_ After Clause 5, insert the following new Clause—
“Report: payments
(1) Within 12 months of the day on which this Act is passed, and annually thereafter,
the Secretary of State lay an annual report and accounting statement before
Parliament.
(2) The report and statement must—
(a) detail past and future payments to the Government of Mauritius,
(b) include an impact assessment analysing the cost of payments to taxpayers
in the United Kingdom, and
(c) include information on any errors and under and overpayments.”
Diego Garcia Military Base and British Indian Ocean Territory
Bill
4

Diego Garcia Military Base and British Indian Ocean
Territory Bill
AMENDMENTS
TO BE MOVED
IN COMMITTEE OF THE WHOLE HOUSE
[Supplementary to the Marshalled List]
19 November 2025
PUBLISHED BY AUTHORITY OF THE HOUSE OF LORDS
59/1 HL Bill 139—I(b)