Invitation to qualified contractors to tender, deadline 29.09.2011, for the design and execution of safety work in RFI tunnels in 2011-2014. Four lots: Lot Nord (EUR196,263,000), Lot Centro Nord (EUR71,336,000), Lot Centro Sud (EUR228,112,000) and Lot Adriatica (EUR66,193,000). Bid Codes: DLE.AG.2011.017, DLE.AG.2011.018,DLE.AG.2011.019 and DLE.AG.2011.020. Visit www.gare.rfi.it/cms/v/index.jsp?vgnextoid=e63e549487061310VgnVCM1000008916f90aRCRD and www.gare.rfi.it/cms/v/index.jsp?vgnextoid=3d0b800f5f491310VgnVCM1000008916f90aRCRD. 34/11.