On 10 May 2007 the European Parliament voted in favour of extending the scope of the Directive on Car Type-Approval to trucks, vans, buses and trailers. Up to now this harmonised approval system was restricted to passenger cars, motorbikes, mopeds and agricultural tractors. From now on, all road vehicles approved for sale in one EU Member State will be allowed to be marketed anywhere in the EU without further tests. This removes barriers to trade among Member States and reduces the administrative burden on manufacturers. In addition, the new rules will improve environmental and safety standards.