The worker must be assigned to carry out the duties for which they were hired or those corresponding to the next higher level they subsequently acquired or duties corresponding to the last ones actually performed, without any reduction in pay.
A worker who is called upon to temporarily perform duties at a higher level is entitled to the remuneration corresponding to the activity performed for the duration of the assignment.
Unless the performance of duties at a higher level took place in order to replace another worker who was absent with the right to retain their post, the change to the new level becomes effective for all purposes two months after the performance of the higher duties.
CLARIFICATION FOR THE RECORD
The parties acknowledge that for cases of advancement to a higher level occurring before 31 May 1982, the rules of the previous contracts concerning the determination of seniority pay shall apply.