Extra-help employees in the classifications of Park Aide, Pest Detection Specialist, and Election Technician shall have the right to return as extra-help in the same classification the next season, under the following conditions:

(1) Extra-help opportunities are available;

(2) The employee has performed satisfactorily;

(3) The employee has had no interim criminal convictions that are in conflict with the classification; and

(4) The employee meets the qualifications for the classification.