European Commission has recently proposed a particulate matter (PM) number limit for light-duty diesel vehicles under the Euro 5 and Euro 6 emission standards. To ensure that emissions of utlrafine particles are controlled, the commission has set up this new regulatory approach that tracks emissions in terms of mass and numbers. The proposed PM number emission limit is 5x1011 particles per km. It will be applicable to all light-duty diesel vehicles at the Euro 5 (effective from 2009) and Euro 6 (effective from 2014) stage in Europe.

This paper is meant to deliver input into the political discussion on Emission Performance Standards (EPS) in the EU power sector. The paper will explore the effects of the introduction of an EPS on electricity sector emissions until 2030 and discuss various EPS related implementation issues.