In addition to specifying the sector national collective labour agreement to apply to the main business sectors, the procurement protocol also governs aspects related to employment continuity, requiring the application of the social clause, which is of "voluntary" application (i.e., when not directly due to the specific labour agreement), in particular in the area of regulated and labour-intensive sectors, in labour agreements and services for activities after the initial measure on networks and services related to the management of the relationship with the end customer (meter reading and auxiliary metering activities), for new contracts for services that have been already outsourced.