From 1 July 2012 drivers of all motor vehicles and motorcycles (excluding mopeds) in France must carry a breathalyser. After 1 November 2012 anyone stopped who fails to produce a breathalyser when requested will receive an on the spot fine of €11.
One unused, certified breathalyser must be produced showing the French certification mark NF. Carrying two single-use breathalysers will ensure that if one is used or damaged, you will still have a spare to produce.
The breathalyser produced has to be in date – single-use breathalysers normally have a validity of twelve months.