“(1) The overriding objective of these Rules is to enable the Tribunal to deal with cases fairly and justly. (2) Dealing with a case fairly and justly includes – (a) dealing with the case in ways which are proportionate to the importance of the case, the complexity of the issues, the anticipated costs and the resources of the parties; (b) avoiding unnecessary formality and seeking flexibility in the proceedings; (c) ensuring, so far as practicable, that the parties are able to participate fully in the proceedings; (d) using any special expertise of the Tribunal effectively; and (e) avoiding delay, so far as compatible with proper consideration of the issues. (3) The Tribunal must seek to give effect to the overriding objective when it – (a) exercises any power under these Rules; or (b) interprets any rule or practice direction.”
“(1) A person making or notifying an appeal to the Tribunal under any enactment must start proceedings by sending or delivering a notice of appeal to the Tribunal. … (4) If the notice of appeal is provided after the end of any period specified in an enactment referred to in paragraph (1) but the enactment provides that an appeal may be made or notified after that period with the permission of the Tribunal – (a) the notice of appeal must include a request for such permission and the reason why the notice of appeal was not provided in time; and (b) unless the Tribunal gives such permission, the Tribunal must not admit the appeal.”