Negotiated invitation to tender, deadline 19.06.2013, for the excavation by hard rock, shielded TBMs, of the 19 km twin-tube rail tunnels between km 2.3 near Oslo S in the north, to km 21.3 close to the new Ski station in the south (contract 3). The cross sectional area of the tunnel is 52 sq m. The contract is part of the Follo line project. Register interest at http://www.english.doffin.no/Search/Search_Switch.aspx?ID=287955. Contact Jernbaneverket, att.n Thien Hai Huynh, Oslo, tel +47 05280, fax +47 22455499. Tenders or requests to participate must be sent to the Norwegian National Rail Administration, att.n Thor Stenersen, Oslo, tel +47 05280, fax +47 22455499. Visit http://ted.europa.eu/udl?request=Seek-Deliver&language=en&docid=157150-2013. 20/13.