There has been lots of recent press coverage about Paris wanting to ban diesel vehicles. However, what is actually happening is that Paris announced on 9th February 2015 that Paris’s odd and even number plate scheme is planned to be replaced with a low emissions zone (zone à basses émissions).
From 1st July 2015, trucks, buses must be Euro 1, and from 1st July 2016 all vehicles must be Euro 1. Between 2017 and 2020, Euro 2, 3 and 4 will gradually be regulated. Investigations into limited traffic zones (almost pedestrian areas) and ultra-low emission zones in certain areas and roads could be experimented with in 2016.