To make the decision, each of the six dioceses elects three clerics onto the college as well as three lay people, who are members of the religious community but not part of the clergy.

The current bishops are also members.

After a discussion and a period of reflection, the president will call for nominations and the bishops nominated must then withdraw from the discussion.

A nominee must achieve two thirds of the votes of the college in order to be elected as archbishop. If, after a vote is taken, no candidate receives the necessary votes the process begins again with fresh nominations.

Once the archbishop is elected, they will be enthroned in his or her home cathedral at a later date.