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Chagos Islands: Sovereignty

Asked by Mr Mark FrancoisConservativeForeign, Commonwealth and Development OfficeTabled Answered 5 June 2025UIN 54631

The question

To ask the Secretary of State for Foreign, Commonwealth and Development Affairs, with reference to paragraph 3(c) of Annex 1 of the document entitled UK/Mauritius: Agreement concerning the Chagos Archipelago including Diego Garcia (CS Mauritius No.1/2025), how the (a) joint management and (b) use of the electromagnetic spectrum in the Chagos Archipelago beyond Diego Garcia will be agreed

Answered by Stephen Doughty

The UK has unrestricted ability to control and manage the electromagnetic spectrum for Diego Garcia and the surrounding 12 nautical miles. Decisions related to the electromagnetic spectrum beyond Diego Garcia will be taken jointly by the UK and Mauritius at the Joint Commision, which is described in Annex 3 of the Treaty. There can be no decisions without UK agreement.

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