The General Assembly, held yearly since 1875 around the first week of June, has recently been held in a number of centres throughout Southern Ontario and Quebec. The number of delegates or commissioners to the General Assembly is determined by one-sixth of the ministers on the presbytery roll and an equal number of elders being commissioned, in rotation from every congregation or pastoral charge. There are also young adult representatives, selected from every second presbytery on the roll, and student representatives, representing the theological colleges.