Yes, you may apply programs you have already taken toward another Executive Certificate or ACE. For example: You earned the Management and Leadership certificate with three programs from that track and one elective from the Strategy and Innovation track. You now want to pursue the Executive Certificate in Strategy and Innovation. You may count the previously taken Strategy and Innovation program toward one of the three required Strategy and Innovation programs, and you may count one of the previously taken Management and Leadership programs as the Strategy and Innovation elective, provided all courses are still within the four year period. So, in this example, you would need to complete only two additional programs to earn the second Executive Certificate.