Open invitation to tender, deadline 07.05.2013, for the maintenance of fire protection systems installed at metro stations, car parks, depots, and offices. Contract value EUR7.93 million, excluding VAT, duration 48 months after award. Time limit for access to documents 29.04.2013. Visit http://ted.europa.eu/udl?request=Seek-Deliver&language=en&docid=102706-2013. Bid Code n. 607. 14/13.