This requirement is being extended to all the key segments; > for all the categories of works to be tendered, suppliers are assessed in relation to various health and safety issues: accident indexes, organization, training and qualifications of their own staff, procedures for management of H&S processes (including the certification of management systems according to OHSAS > for some product categories of the Market Division, specific requirements are envisaged in relation to the assessment aspects linked to staff turnover and training (“Sustainability Parameter”).