the concurrent evidence procedure is to be used should be made as early as possible and, in any event, not less than a week before the listed hearing date. The concurrent evidence procedure Experts' conference The presiding member may direct that the experts who are to give evidence concurrently are to confer prior to the day of the hearing or, as set out in paragraph 19, on the day of the hearing as part of the concurrent evidence procedure. The purpose of the conference is for the experts to identify any areas of agreement and clarify areas of disagreement in relation to the issues before the AAT. The presiding member may direct the parties to prepare a joint written memorandum identifying areas of agreement and disagreement. Where the presiding member has directed the experts to confer, it would be improper for an expert to be given, or to accept, instructions not to reach agreement. Facilities The AAT will ensure that appropriate hearing room facilities are available when concurrent evidence is to be used so that there is sufficient space for the experts to give evidence. The AAT will also ensure that appropriate conference room facilities are available in the event that the presiding member directs the experts to confer. The concurrent evidence procedure This section of the guidelines sets out the way in which the concurrent evidence procedure will generally be conducted in the AAT. The presiding member may determine that a departure from the standard procedure is appropriate in