By and large, Norwegian roads are excellent, although you'll need to take care on winding mountain passes and in the longer tunnels. However, venture off the main roads, especially in the north and in the mountains, and you'll need consummate driving skills. In winter, surfaces are often treacherous, many minor roads are closed and for certain parts of the network - like the E6 Arctic Highway - you need to be properly equipped for Arctic conditions. It's worth noting petrol prices are very high in Norway - around 10kr/ltr. EU driving licences are honoured in Norway, but other nationals will need an International Driver's Licence. If you're bringing your own car, you must have vehicle registration papers, adequate insurance, a first aid kit, a warning triangle and a Green Card. Vehicles should be driven on the right, with dipped headlights required at all times; there's a speed limit of 30kph in residential areas, 50kph in built-up areas, 80kph on open roads and 90kph on motorways. Speed limits are rigorously enforced. Seat belts are compulsory for drivers and passengers, and drunken driving is severely punished. If you break down in a rental car, you'll get roadside assistance from the particular repair company the car firm has contracted. If you are taking your own vehicle, check with your home motoring organization that you have an appropriate insurance policy before you go. In Norway, one of the major breakdown companies is Norges Automobil-Forbund (NAF), whose 24hr emergency number is tel 810 00 505. Car rental is expensive: from around 3900kr a week with unlimited mileage.