The Bureau of Diplomatic Technology (DT), formerly the Bureau of Information Resource Management (IRM), is a component of the U.S. Department of State responsible for providing modern, secure, and resilient information technology and services.

DT provides a range of information technology (IT) services in support of the Department's foreign policy objectives and diplomatic mission.

DT is responsible for the comprehensive planning and oversight of Department-wide IT programs, as well as ensuring the security, integrity, and availability of Department networks and information systems.

DT supports more than 100,000 domestic and overseas customers at 275 posts in 191 countries, providing the infrastructure for over 50 federal agencies and non-governmental partners that operate under Chief of Mission (COM) authority.

[2] The CIO reports to the Under Secretary of State for Management (M), but reports to the Secretary of State when carrying out CIO functions established by the Clinger-Cohen Act.