A major responsibility of ICMI is to plan for the quadrennial International Congress on Mathematical Education (ICME), held under the auspices of ICMI. This entails, for the ICMI Executive Committee (EC), choosing from among host country bids, appointing an International Program Committee (IPC) to form the scientific program and select presenters, and overseeing progress of the congress preparations. The IPC works independently from the Commission. However in order to ensure continuity with general ICMI principles, the ICMI EC normally has representatives on the IPC — in particular the President and Secretary-General of the Commission are ex officio members of the IPC —, one of whom is acting as a liaison officer with the Local Organizing Committee of the congress.