Just be careful where you order them from, go direct to the country 6 euros or so plus a few euros postage. There are a few sites that make out/ look they are official, they charge you £30 for doing it for you.
All applications require a scan of page 2 of your V5, the zfrench is a really low resolution copy, online applications dead easy and received the stickers within 5 days in my case.
it is a sticker per country in the main, so much for EU harmonisation. Links to official sites no agency fees.
www.berlin.de
The Air Quality Certificate is a colored sticker that sticks to the vehicle, which indicates its environmental class according to its emissions of air pollutants. It allows the least polluting vehicles to be able to circulate in conurbations where traffic restrictions have been introduced to...
www.certificat-air.gouv.fr