Revised deadline 15.10.2010 for open invitation to tender for upgrading of Les Halles tunnels and infrastructure. Contract duration 66 months. Further information, specs and docs from Claude Praliaud at Sempariseine, tel +33 144888437, fax +33 142332784, e-mail appel.offres@sempariseine.fr, to where tenders or requests to participate must be sent. Visit http://ted.europa.eu/udl?request=Seek-Deliver&language=en&docid=259821-2010. 35/10.