(1) Supporting documents, including witness statements, expert reports, exhibits and legal authorities, shall be filed together with the request, written submission, observations or communication to which they relate.

(2) An extract of a document may be filed as a supporting document if the extract is not misleading. The Tribunal or a party may require a fuller extract or a complete version of the document.

(3) If the authenticity of a supporting document is disputed, the Tribunal may order a party to provide a certified copy or to make the original available for examination.