The list of qualification tournaments, locations and dates are as follows:
2015
September 7-12: World Championships (Las Vegas, USA)
2016
March 4-6: Pan-American Olympic Qualification (Dallas, USA)
March 18-20: Asian Olympic Qualification (Astana, KAZ)
April 1-3: Africa/Oceania Olympic Qualification (Alger, ALG)
April 15-17: European Olympic Qualification (Zrenjanin, SRB)
April 22-24: First “Last-Chance” Qualification Tournament (Ulaanbaatar, MGL)
May 6-8: Second “Last-Chance” Qualification Tournament (Istanbul, TUR)
more here