Authorised representative rules clarify who may appear and act for parties and government representatives before the tribunal. Rule 2 defines key terms for tribunal procedure: Acts, the Tribunal and its Benches (Principal and Zonal), the categories of authorised representative, and office-holders including President, Vice-President, Member, Commissioner, and Registrar/Registry, while also defining 'certified copy', 'departmental authorities' and the meaning of 'prescribed' under these rules.