National Olympic committees have until Sept. 1 to submit the names of cities seeking to host the 2020 Summer Games, according to AP. The International Olympic Committee executive board approved the 2020 bid timetable, which will culminate with the host city vote in Buenos Aires, Argentina, on Sept. 7, 2013. The IOC will send out letters to all the world's national Olympic bodies by May 16 inviting them to submit bids. In a new twist, prospective candidates must first comply with rules of the World Anti-Doping Agency and accept the jurisdiction of the Court of Arbitration for Sport before being allowed to bid. In another first, national committees must notify the IOC by July 29 whether they propose to hold the games outside the usual July 15-August 31 period.