Notice of qualification system for suppliers for construction works in operating railway tunnels, ordinary and extraordinary superstructure maintenance, and erection of railway signalling equipment for the following lines: Roma-Lido, Roma-Civitacastellana-Viterbo, Roma-Pantano, Line A and B of Rome Metro. N.Bid 06/2011. Further information, specs and docs from RFI SpA - Direzione norme, standard, sviluppo e omologazione, Roma, tel +39 0644101. Visit http://ted.europa.eu/udl?request=Seek-Deliver&language=en&docid=102638-2011. 14/11.
