Qualification system for the design and implementation of technological systems for emergencies in railway tunnels currently in operation. For tender documents please click here, where tenders must be sent. Contact Ferrotramviaria SpA, att Eng Pio Fabietti, Bari, tel +39 080 5299322, fax +39 080 5235480, email legale@ferrovienordbarese.it. Visit http://ted.europa.eu/udl?request=Seek-Deliver&language=it&docid=527775-2022. Ref.n. PNC/PNRR. 39/22.