Drinking and driving: what is the legal limit for your license?

The general legal limit is 0.5 g/l of blood, or 0.25 mg/l of breath.
For a probationary license (new driver), the limit drops to 0.2 g/l of blood, or 0.1 mg/l of breath.
Public transport drivers are subject to the same strict 0.2 g/l threshold.
Boating licenses follow the same limit as a standard driver’s license: 0.5 g/l.
Above 0.8 g/l, the offense becomes a criminal offense, carrying much heavier penalties.

Are you renting a car in France for your holidays and wondering how many drinks you can have before getting back behind the wheel? The answer depends directly on your driver profile. For a standard license held for more than three years, the legal limit is 0.5 grams of alcohol per liter of blood (0.25 mg per liter of breath) during a breathalyzer test. However, if you are on a probationary license, this limit drops to 0.2 g/l—a threshold that is effectively zero tolerance. This article details the thresholds applicable to every situation—standard licenses, AM licenses, boating licenses, and new drivers—as well as the sanctions you may face for exceeding them.

The general legal limit: 0.5 g/l of blood

In France, the legal blood alcohol limit for a driver who has held their license for more than three years is set at 0.5 grams of alcohol per liter of blood, which corresponds to 0.25 milligrams per liter of breath during a breathalyzer test. This threshold applies to almost all passenger vehicles, including rental cars.

In practical terms, this limit can be reached quite quickly: according to road safety guidelines, it corresponds on average to two standard drinks for an average-sized man, and just one drink for a woman, on an empty stomach. These benchmarks vary significantly depending on weight, gender, consumption speed, and food intake—there is no universal rule such as “one drink per hour eliminates the alcohol.” The liver metabolizes alcohol at an average rate of approximately 0.10 to 0.15 g/l per hour, meaning that waiting “an hour or two” after a heavy meal does not guarantee you will be below the legal limit.

For tourists renting a vehicle, caution is highly recommended as French law enforcement conducts frequent roadside checks, particularly near tourist areas, train stations, and outside restaurants or nightlife zones on weekends. A positive test between 0.5 and 0.8 g/l constitutes a 4th-class offense, punishable by a fixed fine, a loss of points, and sometimes a license suspension, without necessarily going to court in most cases.

Probationary licenses and new drivers: a near-zero threshold

Holders of a probationary license—meaning any driver who has held their license for less than three years (or two years if they completed supervised driving)—are subject to a much stricter limit: 0.2 grams of alcohol per liter of blood, or 0.1 milligrams per liter of breath. This threshold is so low that it practically equates to zero tolerance: a single drink is usually enough to exceed it, even for a person of larger build.

This rule was introduced to reduce the risk of accidents among less experienced drivers, who are statistically overrepresented in alcohol-related fatal accidents on French roads. It applies throughout the entire probationary period, during which the driver’s points balance is also reduced (6 points in the first year, compared to 12 for a full license).

This 0.2 g/l threshold also applies to drivers of public transport vehicles (buses, coaches, taxis, ride-hailing services/VTC), regardless of how long they have held their license, as well as professional heavy goods vehicle drivers. For foreign tourists in France, it is important to check if their national license corresponds to a probationary status in terms of seniority; in most cases, French regulations apply the standard 0.5 g/l threshold to holders of valid foreign licenses, unless specific circumstances apply under French law.

AM license (scooters and microcars) and other categories

The AM license, which allows you to drive mopeds, light scooters, and microcars (such as Aixam or Ligier), follows the same logic as other licenses: the applicable threshold depends on driving experience rather than the vehicle category itself. A driver in a probationary period using an AM-category vehicle remains subject to the reinforced 0.2 g/l limit if they also hold another license that is still in its probationary period. Meanwhile, a microcar driver without any other license generally follows the standard regime.

For tourists considering renting a microcar during their stay—a common option in certain French coastal or island areas—it is essential to remember that driving under the influence is sanctioned in the same way as driving a standard car: loss of points (if applicable), fines, or even vehicle impoundment.

Larger motorized two-wheelers (A1, A2, A licenses) follow exactly the same rules as light vehicles: 0.5 g/l in general, and 0.2 g/l during the probationary period. There is no specific “motorcycle” threshold distinct from the “car” threshold in French law.

Boating licenses: the same limit as on the road

Contrary to popular belief, the authorized blood alcohol limit for operating a pleasure boat in France is not more permissive than on the road. A boating license (coastal or river) applies the same threshold as a standard Category B license: 0.5 g/l of blood, or 0.25 mg/l of breath. Beyond this, the pilot faces the same types of sanctions as on the road: fines, revocation of the boating license, or even criminal prosecution in the event of an accident.

This information is particularly relevant for tourists who combine car rentals with boat rentals during a stay in a coastal region (such as the French Riviera, Brittany, or Corsica). Maritime checks, conducted by maritime authorities or the maritime gendarmerie, are less frequent than roadside checks but do exist, especially during the high summer season in popular anchorage areas.

There is also no specific “probationary” threshold for boating licenses: a young driver on a probationary road license who also holds a boating license is not automatically subject to the 0.2 g/l threshold on the water, as the sanctioning regime for boating licenses remains distinct from road driving licenses.

Sanctions based on blood alcohol level: from fine to criminal offense

The severity of sanctions increases in stages depending on the level measured during the check. Between 0.5 and 0.8 g/l of blood, the offense remains a 4th-class contravention: a fixed fine, loss of points on the license, and a possible license suspension of up to three years, decided by the prefect or a judge.

From 0.8 g/l of blood onwards, driving under the influence becomes a criminal offense, judged by a criminal court. Penalties include a significantly higher criminal fine, suspension or cancellation of the license, community service, or even a suspended prison sentence in cases of recidivism or aggravating circumstances (such as an accident or the presence of children in the vehicle). A rental vehicle may also be impounded on the spot, which poses a major practical problem for a tourist on the move—not to mention the additional fees charged by the rental agency in the event of impoundment or associated damage.

For drivers on a probationary license exceeding 0.2 g/l, the base sanction is the same 4th-class contravention as for a standard driver exceeding 0.5 g/l, but the loss of points affects a smaller total balance, which can lead to the invalidation of the probationary license much more quickly.

Refusing to submit to a breathalyzer or blood test is itself a criminal offense, punishable by sanctions comparable to those for a blood alcohol level exceeding 0.8 g/l, regardless of the driver’s actual level.

Practical tips for tourists in rental cars

For visitors exploring France in a rental car, a few simple habits can help avoid any risk. First, it is better to designate a driver who does not consume alcohol during meals or outings rather than attempting to estimate your own level using a portable breathalyzer—while these devices are useful as an indicator, they do not replace an official test and have a margin of error.

Next, it is useful to know the available alternatives if you are in doubt: ride-hailing apps (VTC) are widely available in large French cities and tourist areas, as are taxis, allowing you to leave the rental vehicle where it is and pick it up the next day. Some rental companies also offer options to collect a vehicle at a different time or location; check this during your booking.

Finally, keep in mind that in the event of an accident while under the influence of alcohol, full responsibility falls on the driver: car rental insurance contracts almost systematically exclude coverage for damages in the event of driving with a blood alcohol level above the legal limit. An accident under these conditions can therefore result in considerable costs, far beyond a simple fine, including full responsibility for vehicle repairs and damages caused to third parties.

What is the legal blood alcohol limit for a standard license in France?

The legal limit for a standard license held for more than three years is 0.5 g/l of blood, or 0.25 mg/l of breath.

What is the legal limit for a probationary license?

The threshold is 0.2 g/l of blood, or 0.1 mg/l of breath, applicable throughout the entire probationary period (2 to 3 years).

Is the legal alcohol limit different for a boating license?

No, a boating license applies the same threshold as a standard Category B license: 0.5 g/l of blood, or 0.25 mg/l of breath.

What alcohol limit applies to an AM license (scooters, microcars)?

The threshold depends on the driver’s status: 0.5 g/l for an experienced driver, and 0.2 g/l if they are in a probationary period.

What are the risks for a blood alcohol level between 0.5 and 0.8 g/l?

This is a 4th-class offense: a fine, loss of points, and possible license suspension, without a mandatory court appearance.

At what level does alcohol consumption become a criminal offense?

From 0.8 g/l of blood, the offense becomes a criminal offense judged by a criminal court, with much heavier sanctions.

How many drinks correspond to the legal limit of 0.5 g/l?

On average, two standard drinks for an average-sized man, and one for a woman, but this varies depending on weight and food intake.

Are foreign tourists subject to the same alcohol limits?

Yes, a foreign driver traveling in France with a valid license is subject to the same legal limits as French drivers.

Sources

About the author

Viktor

Passionate about travel and cars, Viktor shares his tips on renting a car in France, choosing the right vehicle, planning your journeys, and making the most of the road, whether driving in the city, at the airport, or on a road trip.

Learn more about Viktor →

À découvrir

Image de l'article : Tire Guide: How to Extend Tire Life | Pro Tips

Auto-Tips

Drinking and driving: legal limits in France