A special transport service has been laid on allowing passengers to travel free of charge throughout the entire Ile-de-France network, RATP, SNCF and Optile as of 17.00 on 31 December 2005 until 12.00 on 1 January 2006. Six metro lines, 1, 2, 4, 6, 9, 14, covering the entire city, and 52 stations will remain open for the duration, with trains running every 5 minutes and even more frequently on line 14. Other mtro lines will close at the normal time. Lines A and B of the RER RATP will operate a full service and there will also be a special night service. For full information see www.paris.fr.