| February 15, 2015 |
Last day for online confirmation of participation by countries |
| March 31, 2015 |
Last day for receipt of problem proposals |
| April 30, 2015 |
Last day for online registration of leaders, deputy leaders, observers,
the number of contestants and arrival day for leaders and observers A |
| May 31, 2015 |
Last day for online registration of Contestants |
| May 31, 2015 |
Last day for full payment of the charges for single rooms and observers in cleared funds |
| June 15, 2015 |
Last day for online registration of all travel details |
