- (a) An officer to whom any matter has been referred may grant leave to amend or to file any pleadings or to intervene, upon request tendered at the hearing, but in no event shall an officer grant such leave if thereby the issues would be so narrowed as to make a referred matter one which would properly be referred to a different officer.
- (b) An officer shall have no power to decide any motion to dismiss the proceeding or other motion which involves final determination of the merits of the proceeding.
- (c) The officer shall regulate the procedure in the hearing before him or her and take all measures necessary or proper for the efficient performance of the duties assigned him or her.