The social and economic committee of the competent user undertaking shall, if it considers it necessary, instruct one or more of its members belonging to the staff delegation to take part in the prior joint inspection.
The social and economic committees of the external undertakings concerned shall participate, if they consider it necessary, in the prior joint inspection, under the conditions laid down in article R. 4514-9.
The members of the committees designated to take part in the joint preliminary inspection shall issue an opinion on the prevention measures. This opinion shall be included in the prevention plan if the plan has to be drawn up in writing.