(a) Employees that are promoted into a different classification or either transferred or demoted to a different operational unit shall be entitled to work overtime while they are probationary in their new classification or new to their assignment providing the employees have been in the new position long enough to be familiar with the position and have acquired the ability to perform the duties of the operations that are required to work overtime.
(b) Employees who have been promoted, transferred or demoted shall be charged with the average amount of overtime hours and shall be so placed on the overtime rotating list. In the event the calculated hours match those of a current employee in the unit, the employee new to the unit will be placed below the existing employee on the rotating overtime list.