As I understand it, it is that the order of questions for the first round of questioning be as follows: Liberal, Bloc, NDP, CPC. Questioning during the second round shall alternate between the opposition members and government members in the following fashion: Liberal, Bloc, Conservative, Conservative, Liberal, Conservative, Conservative, based on the principle that each committee member should have a full opportunity to question the witnesses. If time permits, further rounds shall repeat the pattern of the first round, at the discretion of the chair.
Evidence of meeting #1 for Citizenship and Immigration in the 40th Parliament, 2nd session. (The original version is on Parliament’s site, as are the minutes.) The winning word was chair.
A recording is available from Parliament.