The Euro 5 standards will come into force in 2009, one year later than proposed by the European Commission. They will set new standards for particulate matter, hydrocarbons and nitrogen oxides (NOx).
Debate centred around the new NOx limit, which has been set at 60 milligrams per kilometre for petrol cars - 10mg lower than proposed by the Parliament’s Environment Committee - and 180mg/km for diesel cars.
The Euro 6 standards will come into force in 2014, also a year later than proposed, and will require a new NOx limit of 60 and 80mg/km for petrol and diesel cars, respectively.
Member states will be able to offer financial incentives for the purchase of vehicles meeting the Euro 5 and 6 standards before they come into force.
Final adoption is expected early next year.