Appellate Tribunal records subject to destruction after six years with Chairperson's prior order; permanent records preserved. Rule 47 requires destruction of Appellate Tribunal records, other than permanent record, by the Registrar or Deputy Registrar six years after final conclusion of proceedings and only after obtaining the prior order of the Chairperson; permanent record includes orders, the appeal register, the petition register and other records the Chairperson may designate.