81. When a commissioner ceases to hold office, retires, becomes ill or unable to act, or dies, the chairman, or the vice-chairman designated under section 10, may order that an application of which that commissioner was seized be continued and terminated by another commissioner or replaced on the roll to be heard again.
If the case was taken under advisement, it is entrusted to another commissioner or replaced on the roll in accordance with the first paragraph, unless, where the commissioner seized of the case has retired or ceased to hold office, the chairman or the designated vice-chairman requests the commissioner seized of the case to render a decision within ninety days. Upon the expiry of that time, the chairman or designated vice-chairman proceeds in accordance with the first paragraph.