Diego Garcia Treaty Oversight Act

This bill, known as the Diego Garcia Treaty Oversight Act, requires Senate approval before the United States can modify a 1966 agreement with the United Kingdom regarding the British Indian Ocean Territory, where the U.S. maintains a military base on Diego Garcia. It mandates that the President submit detailed reports on any proposed changes to Congress, including national security justifications and implications for U.S. control of the territory. Additionally, the bill prohibits federal funding for any modifications until the Senate has formally consented to the changes. The legislation directly affects the executive branch's ability to negotiate treaty modifications and ensures congressional oversight of this long-standing defense arrangement.