Where necessary, the Chairman of the Regional Council and the Regional Prefect may jointly invite representatives of local authorities or operators who are not members of the Regional Committee for Employment, Training and Vocational Guidance, or qualified personalities, to attend plenary sessions of the Committee without taking part in deliberations relating to the opinions mentioned in article R. 6123-3-2, those of the Bureau or those of the commissions mentioned in article R. 6123-3-13.