(a) An employee may contribute to the sick leave pool one or more days of the employee’s accrued sick leave.
(b) The pool administrator shall credit the sick leave pool with the amount of time contributed by an employee and deduct a corresponding amount of time from the employee’s earned sick leave as if the employee had used the time for personal purposes.

(c) A retiring employee may designate the number of the retiring employee’s accrued sick leave hours to be used for retirement credit and the number of the retiring employee’s accrued sick leave hours to be donated on retirement to the sick leave pool.