Since rements for suppliers, with the aim of consolidating the existing control system through more incisive action to contrast corruption, especially by: defining specific criteria for the documentary verification of integrity and legal requirements that are homogeneous and can be applied to the procurement process (from the qualification phase to awarding the individual contract); defining operating verification procedures, aimed at enhancing the prevention instruments available and impacting, in a rational, organic and determined manner, any aspects related to corrup tion issues and the factors that favor its spread; promoting a widespread culture of respect for rules and ethics.