The four rounds of deadlines are as follows:
Early Action Round
Deadline: October 17, 2014
Interview Completed: December 5, 2014
Notification: December 15, 2014
Round 2
Deadline: December 12, 2014
Interview Completed: January 26, 2015
Notification: February 2, 2015
Round 3
Deadline: January 16, 2015
Interview Completed: March 9, 2015
Notification: March 16, 2015
Round 4
Deadline: March 13, 2015
Interview Completed: April 20, 2015
Notification: April 27, 2015