If new proposals from the European Commission are approved, car manufacturers will need to cut CO2 emissions by 30 per cent.
The targets look at average emissions limits from 2020, with stages at 2025 and 2030 onwards.
As reported by Next Green Car, the plans will see cars and vans emit 15 per cent less CO2 by 2025 than in 2021.
It will also mean a 30 per cent reduction by 2030.
This is part of plans to ensure manufacturers produce more zero and ultra-low emission vehicles.
Changes would not have any legal impact on UK legislation since the Brexit process will be complete by then, though the UK could well adopt the same policy should the proposals go through.
It is estimated that if plans go through, it would save around 170 million tonnes of CO2 between 2020 and 2030.