29(1)Where, after a bargaining agent for a bargaining unit has been certified by the Board, the employer or the bargaining agent wishes to designate a position to be a position in which is employed a person described in subparagraphs (
e)(i) to (v) inclusive of the definition “person employed in a managerial or confidential capacity” in section 1 of the Act, the employer or the bargaining agent shall file a designation in Form MC-1 of Schedule C in triplicate with the Board.