In the negotiated procedure public tender, published in for adaptation of the Cesenatico waste water treatment plant, for a tender amount of over Euro 7 million, of the 30 points reserved for the technical component, 10 points were reserved for social sustainability (staff training on safety, possession of OHSAS18001 certification and accident frequency/severity indices) and 2 points were reserved for environmental sustainability (possession of ISO 14001 environment certification).