The final departmental stage shall be the determination of the grievance
by the department, board, agency, commission or special district head
or, at the election of such head, by a duly designated representative
with full responsibility for the determination of grievances in the
final departmental stage. If a grievance is not satisfactorily settled
at a lower stage, the employee may request a review and determination
thereof by the head of the department, board, agency, commission or
special district, or the designated representative thereof. In such
case, the specific nature of the grievance or the facts relating thereto
shall be reduced to writing, jointly or separately, by the employee
and by the appropriate supervisors. The head of the department, board,
agency, commission or special district, or the designated representative
thereof, shall, at the request of the employee, hold an informal hearing
at which the employee and his representative may appear and present
oral statements or arguments. There may be designated one or more
officers or employees of the department, board, agency, commission
or special district to conduct such informal hearing and to submit
a report thereon with recommendations. The final determination of
such grievances shall be made by the head of the department, board,
agency, commission or special district, or the designated representative
thereof. Whenever it is not practicable to limit departmental, board,
agency, commission or special district procedures to two stages, such
additional intermediate stages as may be necessary shall be established,
subject to the approval of the Grievance Board.