 The Application Files, which contain the answers and guarantees requested by the IOC's 2016 Candidature Acceptance Procedure and Questionnaire, were returned by all seven applicant cities to the IOC on January 14, 2008.The responses were studied by the IOC Working Group and the IOC Executive Board, at the latter meeting to decide which cities would be accepted as candidate cities.On June 4, 2008, the IOC announced that Chicago, Tokyo, Rio de Janeiro, and Madrid were selected to the next bidding phase, during a meeting in Athens, Greece.