Oral argument or briefs; requests for findings of fact or conclusions at the close of hearings

of hearings In all hearings under sections 31-106 and 31-107 of the act, the board may in its discretion permit the parties to argue orally before it at the close of the hearings or to file briefs, requests for findings of fact or conclusions with it. The time for oral argument, filing briefs or requests for findings of fact or conclusions shall be fixed by the board. Any request for oral argument before the board shall be submitted at the close of the hearing. The granting or denial of permission to argue orally before the board shall be within the discretion of the board. Arguments shall be included in the stenographic report unless the board directs otherwise.