British motorists driving through parts of France face a €180 fine for not displaying an emissions sticker.
The Crit’Air labels – which cost €5 – must be ordered through official websites.
There are six different types of stickers, based on a vehicle’s air pollutant emissions.
The cleanest electric and hydrogen cars require green “0” markers, while the most polluting diesel vehicles need to display ‘5’.
Some areas of France restrict vehicle movements based on their sticker.
The capital, Paris, has the strictest regime, with some roads at specific times only open to 0, 1 or 2 marked cars.
Bordeaux is one of 14 areas where drivers need to display the Crit’Air sticker.
Also included is Clermont-Ferrand.
Motorists who do not abide by the rule face a fine of €68 (£58), which rises to €180 (£154) if not paid within 45 days.
Fines of up to €750 (around £640) will be introduced from next year when camera-based enforcement goes live.
