SCHEDULE I - PER DIEM RATE. Unit members who are assigned 13 by mutual agreement to professional duties beyond their regularly assigned 14 duty year shall be compensated at their per diem/hourly rate of pay (except 15 as provided for in the following schedules). Compensation will be only for 16 the actual services provided. Unit members who have held such 17 assignments for two (2) or more consecutive years shall be granted the right 18 of first interview for the extended assignment (Schedule I).