If a candidate is allowed extra time, their listening exam must be delivered in a separate room or (subject to continuous supervision) at a different time from other candidates. You may need an additional device to enable listening exams to happen simultaneously, in different rooms.
All candidates allocated 25% extra time may sit in the same room to take their exam.
The only exception is where a candidate requires a reader. In this instance, they need to sit the exam in a room on their own to avoid disturbing others.