[1monkey600]

Originally Posted by xsaab

I have found that I can get stickers from
https://www.crit-air.fr/en.html

https://www.tolltickets.com/default.aspx?lang=en-GB
they do not process the French stickers but do other documents

and
https://www.certificat-air.gouv.fr/en/

for the French - I think this cheaper than the crit-air location.

Enjoy

The crit-air site is like these websites here that say they can sort you a passport or whatever but charge you five times the cost of you going direct to the .gov.uk passport site. OK, in this case you need a bit of french but the crit-air site charges nearly 30euro while the official gouv.fr site costs 3.11euro plus postage to an 'overseas' address.

With regards to whether cat 1 or cat 5 is worse - according to their website cat 1 used to be the worst but now is the best available (for internal combustion engines)