The Crit'Air sticker explained for anyone renting a car in France

The Crit'Air sticker is a French air quality certificate: a coloured disc on the windscreen ranking a vehicle from class 0 to class 5 by what it emits. It governs entry to the low emission zones of several French cities, and on a car rented in France the rental company orders it for you.

What the Crit'Air sticker actually is

Its full name is the certificat qualité de l'air. The French state introduced it in 2017 to sort vehicles by the pollutants they release, and it takes the form of a round adhesive disc, numbered and colour coded, stuck to the inside of the windscreen on the passenger side. Motorcycles carry theirs on the frame or the front fork.

Three things about it surprise visitors. It is tied to the registration number, so it stays with the vehicle when it changes hands. It has no expiry date, which means a disc issued in 2018 is still valid today. And it says nothing at all about roadworthiness or insurance: a car can be perfectly legal to drive across the whole country and still be barred from the centre of one city.

The six classes

Every car falls into one of six classes, or into none at all if it is old enough. The table below gives the shorthand that a rental agent would use.

Anything registered before 1997 receives no disc whatsoever. That is not an oversight in the system: such cars are simply excluded from every zone that operates, and no piece of paper will let them in.

An electric rental sits in the top class and is admitted everywhere a restriction applies, which is one reason fleets in the capital have been shifting towards them.

How the class is decided

The classification comes from two fields on the vehicle papers, called the carte grise in France, the fuel and the European emission standard, cross-checked against the date of first registration. Nothing else enters the calculation. That is worth spelling out, because the assumption most people arrive with is wrong: a large recent diesel estate is usually class 2, while a small petrol city car from 2003 is class 3 and therefore more restricted. Displacement, price, comfort level and rental category are irrelevant.

The practical consequence for a visitor is simple. You cannot guess your class from the car you are handed, and neither can the agent behind the counter without looking. Read the number printed on the disc itself, because that number is the only thing that matters at the entrance to a zone.

Where the sticker is required

The disc matters inside a low emission zone, called a zone à faibles émissions in French and abbreviated to ZFE. Each one is defined by a local authority, which sets its own perimeter, its own timetable and its own list of admitted classes. There is no single national rule, and a class that gets you into one city may keep you out of the next.

The boundary is signposted. Look for a square white sign showing the row of Crit'Air discs with the admitted numbers, usually accompanied by the hours of operation. These signs are the authoritative statement of what applies that day, and they are worth reading rather than guessing at, as is the rest of the local signage covered on our driving in Paris page.

The French words you will see

Four terms cover almost everything written on the signs and in the local press. The disc itself is a vignette, and a French speaker will use that word rather than the English one. The zone is a ZFE, occasionally still called a zone à circulation restreinte on older signage in a town that set one up early. A temporary restriction during a pollution episode is circulation différenciée. And the paper that decides your class is the carte grise, the registration certificate.

Knowing the four saves a lot of guesswork, because signage in France is rarely translated outside the airports, and a rental agent explaining a restriction will reach for them without thinking. The vocabulary is the same from one region to the next even when the rules are not.

The Greater Paris zone

The largest zone in the country covers the area enclosed by the A86 motorway. Two roads are deliberately left outside the perimeter: the A86 itself and the boulevard périphérique, so it remains possible to circle the capital without entering the restricted area. Part of that ring is a toll motorway, the Duplex tunnel on the western side, which is worth factoring into the cost of a detour alongside the rest of the toll network in France. Restrictions apply on weekdays between 8am and 8pm, and are lifted at weekends and on public holidays.

The list of admitted classes has tightened by stages since the zone opened, and further tightening has been announced, postponed and reconsidered more than once. Anyone planning a stay of several days is better served by checking the current position than by relying on what applied on a previous visit.

Other cities, and pollution peaks

Lyon and Grenoble have run zones of their own for years, and other French cities have been drawn into the framework at various points. Strasbourg, Toulouse, Montpellier, Marseille, Nice, Rouen, Reims and Saint-Étienne have all set one up at one time or another, with perimeters that range from a couple of central districts to an entire metropolitan area. A road trip that takes in three or four of them may cross three or four different sets of rules.

The wider requirement comes from European air quality law, which obliges member states to bring pollutant concentrations below common limits; the low emission zone is simply the tool France chose to get there, as Germany, Belgium and the Netherlands each chose their own. That is why the underlying emission standard used to grade a car is the same across Europe even when the sticker is not.

The French picture itself has been genuinely unstable: successive laws extended the obligation to every large agglomeration, and Parliament has since debated rolling that obligation back. This is one of the rare areas of French road law where a guide written eighteen months ago can be actively misleading.

Separate from the permanent zones, a prefect can order what is called circulation différenciée during a pollution episode. Access is then limited to the cleanest classes for as long as the episode lasts, speed limits usually drop by 20 km/h below the posted figure, and the decision is announced a day ahead in the local press. Those temporary reductions sit alongside the permanent figures in our guide to speed limits in France.

When a restriction blocks your route, the fallback is usually straightforward: leave the car at a park and ride, or near a train station on the outskirts, and finish the journey by public transport. Most French cities have built the interchange precisely for this.

Rental cars: who orders the sticker

On a vehicle hired in France, the answer is the rental company, and it happens without any involvement from you. The company is the registered keeper, it holds the registration certificate, and ordering the certificate is part of putting a car on the road. Fleets are also renewed quickly, typically every twelve to twenty-four months, so a car collected at one of the Paris airports or from a city branch is almost always class 1 or class 2, admitted to every zone currently in force.

That is why the question rarely becomes a problem in practice, and why it is worth understanding rather than worrying about. The failure mode is not a missing sticker on a modern hire car. It is a driver who assumes a vehicle picked up in another country is automatically covered in the same way. Rental companies register their fleets where they operate, and nothing crosses a border with the car.

What to check at the desk

Ten seconds at pickup settles it. Look at the bottom of the windscreen on the passenger side for the coloured disc, and read the number in the middle of it. The registration number is printed on the disc as well, and it should match the plate.

• Note the class in the same photo sequence you take of the existing scratches.
• If the disc is missing or the plate on it does not match, say so at the counter rather than after leaving, exactly as you would for a fuel level that disagrees with the contract.
• Ask for a different vehicle if you know your route crosses a restricted area and the class you have been given is not admitted there.

A car hired outside France

This is where visitors get caught. A vehicle collected in Germany, Belgium, Spain or Italy carries no French disc, because the agency that supplied it had no reason to order one. The obligation still applies the moment you cross into a French zone, and it becomes your responsibility rather than theirs. Anyone planning that kind of journey should read our guide to taking a rental car across borders before booking.

Do not assume the systems mirror each other either. Belgian and Dutch zones read number plates with cameras and issue no sticker at all, so a driver arriving from Brussels has nothing to transfer. Germany runs its own Umweltplakette, which looks similar, serves the same purpose and is worthless in France. Three neighbouring countries, three incompatible schemes.

What happens if you ignore it

Driving inside an active zone without a valid disc, or with a class that is not admitted, is a fixed penalty of the third class for a car: 68 euros, reduced to 45 euros if it is settled quickly and raised to 180 euros if it is left. Lorries, coaches and heavy vehicles fall into the fourth class, at 135 euros. No points are deducted from a licence for this offence, and the requirement applies to every vehicle on the road in France, whether it is registered here or abroad.

Enforcement has historically been done by police at the roadside, with automated number plate reading being introduced progressively. On a hire car the notice goes to the registered owner, which is the rental company, which then identifies you from the contract and passes the charge on with an administrative fee of its own. Most companies in France charge for this handling whether the driver contests the fine or not. The fee is often comparable to the fine itself, so the real cost of a careless afternoon is roughly double the headline figure.

Ordering a sticker for your own vehicle

If you are bringing your own car rather than renting one, the process runs entirely online through the official government service at certificat-air.gouv.fr, which is the single legitimate channel. You upload the registration document, pay a fee of a few euros including postage, and the disc arrives by mail. The current amount is stated on the site itself.

Two warnings are worth more than the rest. First, a number of commercial sites resell the same certificate for several times the official price; they are not illegal, they are simply unnecessary. Second, delivery to an address abroad takes weeks rather than days, so this is something to arrange well before departure. Foreign registration numbers are accepted by the service, and the payment receipt is generally treated as proof while the disc is in transit.

What the order actually involves

The sequence is short. You provide a scan of the carte grise or its foreign equivalent, the site reads the fuel and the first registration date from it and works out the class, and you pay by credit card. An email confirmation follows within minutes and carries the class that has been attributed. You then receive your sticker by post, and the confirmation serves as proof in the meantime.

Keep that email. It is the only document you hold until the disc arrives, and it is what an officer will want to see if you are stopped inside a zone during the wait. Print it rather than relying on a phone that may have no signal in an underground car park.

This is also the point at which people renting rather than driving their own car can stop reading: none of it applies to you, and this is one of the rare French administrative errands a visitor genuinely gets to skip.

Questions drivers ask

Do rental cars in Paris already have a Crit'Air sticker?

Yes. The rental company is the registered keeper of the vehicle and orders the certificate when the car enters the fleet, so a French hire car arrives with the disc already on the windscreen. French fleets are renewed every year or two, which means the class is normally 1 or 2 and admitted to every zone in force.

How do I get a Crit'Air sticker for a foreign vehicle?

You order it yourself on the official government website, which accepts foreign registration numbers. You will need the registration document, and the fee is a few euros including postage. Delivery to an address outside France takes several weeks, so the order should be placed well before the trip rather than on the way.

What is the fine for driving without one?

For a car it is a third class fixed penalty of 68 euros, reduced to 45 euros if paid promptly and raised to 180 euros if it is not. Heavy vehicles fall into the fourth class at 135 euros. No licence points are lost, but on a hire vehicle the rental company adds its own administrative charge on top.

Does the Crit'Air sticker expire?

No. The certificate is issued for the lifetime of the vehicle and carries no expiry date, because the class it records cannot change: it is derived from the fuel and the date of first registration. A disc issued when the scheme began is still perfectly valid today.

Is it the same as the German environmental badge?

No, and one will not stand in for the other. Germany issues its own Umweltplakette for its Umweltzonen, Belgium and the Netherlands use camera enforcement with no sticker at all, and France requires the Crit'Air disc. A driver crossing several borders needs to satisfy each scheme separately.

A short checklist before you set off

None of this needs to occupy your holiday. Four habits cover it, and they take less time than reading the rental contract.

• Look at the windscreen at pickup and note the class on the disc.
• Check the rules of any city on your route where you intend to park in the centre, alongside the local parking arrangements.
• Watch the local news for a pollution episode if you are staying more than a few days in a large urban area.
• If you are arriving in a vehicle registered abroad, order the certificate weeks in advance and travel with the receipt.

Low emission zones are defined by local authorities and their rules change. Check the current position with the French government service before travelling.