Open invitation to tender, deadline 01.12.2010, for ventilation consultancy services for tunnels in the northern link, Stockholm's north ring road. Bid n. TRV 2010/90654. Contract duration 12 months. The procurement could be extended for E18 Hjulsta-Kista and southern link. Contact Trafikverket, Sundbyberg, attn Anders Karnestrand, tel +46 771921921, e-mail anders.karnestrand@trafikverket.se. Send offers to https://www.eu-supply.com/transactions.asp?B=TRAFIKVERKET&PU=1. Visit http://ted.europa.eu/udl?request=Seek-Deliver&language=en&docid=316404-2010 and http://ted.europa.eu/udl?request=Seek-Deliver&language=en&docid=316304-2010. 43/10.