How many members of my supervisory committee can be on my examining committee at the oral defence?

A minimum of  2 and a maximum 3 members of your supervisory committee (including your supervisor) are required for quorum on the examining committee at your oral defence. 

If you have more than three members on your supervisory committee, you will want to have a discussion with them in advance to determine which members will be serving in this role. Additional supervisory committee members are welcome to attend the defence and to ask questions of the candidate, but cannot participate in the in camera discussion or voting.