Registrar duties govern intake, scrutiny, amendment, hearing scheduling and service of appeals before the appellate tribunal. The Registrar is the central officer for intake and preliminary management of appeals, receiving appeals and documents, scrutinising and deciding issues before registration, requiring amendments, fixing hearing dates and issuing notices under supervisory direction, directing formal record amendments, granting copies and inspection of Tribunal records, requisitioning records from other authorities, and managing service and substituted service procedures including issuance of fresh notices and specifying methods of service.