The light commercial vehicle rules are similar to the way that cars have been done, with each van manufacturer working out an overall fleet average CO2 target. Each manufacturer's emissions target is based on the weight of each new LCV it registers in the EU in a given year. To put the targets in perspective, the Ford Transit ECOnetic has a CO2 output of 189 g/km.

Initial target and phase-in – 2014 to 2017: 175g/km CO2 (phased in with 70%, 75% and 80% of each manufacturers' fleet complying in 2014-16 respectively and 100% from 2017 onwards).
Long-term target – 2020: 147g/km, to be confirmed in a review in 2013.
Derogation: independent manufacturers registering less than 22,000 vehicles per year (in the EU) can apply to the Commission for an individual target that is consistent with its economic and technological potential for CO2 reduction and the characteristics of the vehicles' market segment. Mirroring the cars regulation.
•Super credits: as an incentive for selling low carbon LCVs (<50g/km), manufacturers can count each qualifying LCV several times when calculating their fleet average CO2. They can be counted 3.5 times in 2014 and 2015, then 2.5 (2016), 1.5 (2017) and 1.0 in 2018. There will be a cap on super credits at 25,000 vehicles per manufacturer over the super credits period to 2018.
•Eco-innovations: certain innovative technologies deliver a real-world CO2 benefit, but this is not reflected in the CO2 result from the type approval test. Manufacturers can be granted a credit if they equip vehicles with innovative technologies. The credit will be based on independently verified data and depends on how many vehicles the technologies are applied to. The credit is limited to a maximum of 7g/km on average for each manufacturer's fleet.
•Multi-stage vehicles: manufacturers of incomplete vehicles will take responsibility for meeting the CO2 target for the base vehicle. The Commission will make a proposal by the end of 2011.
Peugeot have already pointed out that their vans already meet the 2014 target, whilst their 207, Peugeot Bipper and Partner vans already come in under the 2020 target of147g/km. It seems that the European Parliament has not been as tough as it could have been when setting the limits.
http://www.vanlocator.co.uk/van-sales/2011/03/03/van-emissions-targets-set-from-citroen-nemos-to-mercedes-sprinters/