(a) To conserve time and expedite proceedings all parties within the scope of the Adjustment Board should prepare submissions in such manner that the pertinent and related facts and all supporting data bearing upon the dispute will be fully set forth, thus obviating the need of lengthy briefs and unnecessary oral discussions.(b) All submissions shall be typewritten or machine prepared, addressed to the Secretary of the appropriate Division of the Adjustment Board, and fifteen copies thereof filed by the petitioner or petitioners.(c) Parties to a dispute are required to state in all submissions whether or not an oral hearing is desired.