The inclusion of sustainability criteria in the contracts awarded to the most cost-effective bids is a practice that the Group has implemented for years, in line with the rules of the Contracting Code (published with Legislative decree no. mainly refers to: › ISO 14001, ISO 9001 and ISO 45001 certification; › the use of ecological materials and product certification; › energy efficiency and the use of energy from renewable sources; › measures for the protection of health and safety in the workplace.