A sticker called 'Crit'Air' is mandatory for all vehicles if they want to enter a French 'emergency low emission zone' (ZPA) (in cases of high pollution events) or a French 'low emission zone' (ZRC).
From 27 November 2017:
The Toulouse Metropolitan area has an emergency low emission zone scheme during high pollution events. It is not decided yet what the measure will look like. But most likely some vehicles will be banned after a certain amount of days with smog alarm. The Crit'Air sticker is necessary to be allowed to circulate during smog alarm.
More information here as soon as available.
Inside the ring road of Toulouse
not available yet
There are stickers called "air quality certificates" (Certificats qualité de I’air) which are mandatory for French and foreign vehicles.
For vehicles registered in France, the French LEZ stickers can be bought here.
Stickers for foreign vehicles can be bought in English, French, German or Spanish. These stickers can be bought by those outside France. Please allow enough time for delivery.
Foreign vehicles are also affected and need to display an emission sticker from 1 April 2017 on.
From 27 November 2017 in times of high pollution events only vehicles that get a certain Crit'Air sticker are allowed to circulate.
Manual by police
Yes. There is a national law, based on the classifications of vehicles shown in the table below.
Low emission zone stickers are mandatory for French vehicles and cost 3,70€ plus an additional cost for postage (0,48€). For vehicles registered in France, the French LEZ stickers can be bought here.
Foreigners can buy their stickers here.
The exemptions for the LEZ apply to vehicles:
ZPA (zone de protection de l’air), circultation alternée
For additional streets closures see the traffic and closure on the Paris website.