In the restricted procedure public tender for the adjudication of the service for the collection of solid municipal waste of various kinds and related transportation to the recovery/disposal plants, by means of emptying of “roll-off” type containers or “press containers”, for a tender amount of around Euro technical component, 36 points were reserved for environmental sustainability (age and impact of vehicles used, possession of ISO 14001 environmental certification) and 8 points were reserved for social sustainability (possession of OHSAS18001 certification).