Renting a Car for the French Mountains in Winter: Tyres and Chains
France's loi Montagne: what your rental car must have on board to drive up to a ski resort, certified tyres or chains, and who is liable.
To drive through a commune covered by France's loi Montagne, from early November to the end of March, your rental car must meet one of two conditions: it must be fitted with winter tyres carrying the alpine pictogram, or it must carry chains or textile snow socks that fit its driven wheels. And if you are stopped, it is the driver who is fined, never the rental agency: so the equipment has to be written into the contract in black and white before you leave the car park.
The obligation does not depend on the weather that morning or on the altitude. It depends on the commune you are driving through. The massifs concerned are the Alpes, the Pyrenees, the Jura, the Vosges, the Massif central and Corsica, but inside each massif the list of communes is set by prefectoral decision and can change from one season to the next. Check it on the official French government source before you set off, then watch for the roadside signs that mark the entry to and exit from the zone.
- Two legal options: winter tyres with the alpine pictogram, or chains and snow socks on board for the driven wheels.
- The rule applies from early November to the end of March, in clear weather as much as in snow.
- The fine goes to the driver, not to the rental company: get the equipment written into the contract.
- The list of communes is set by the prefectures and changes: check the official source before every trip.
- Whenever visibility drops below 50 m, the maximum speed is 50 km/h everywhere, motorway included.
What the loi Montagne actually requires
The law lets you choose between permanent and removable equipment. Permanent means winter or all-season tyres carrying the alpine pictogram: a three-peaked mountain with a snowflake, moulded into the sidewall. Removable means approved metal chains or textile snow socks, kept in the boot and in the right size for the driven wheels. The old commercial markings for mud and snow have been progressively set aside in favour of the alpine pictogram alone, so treat that pictogram as the only proof that counts, and re-read the rule in force on the official source before the season.
- Permanent equipment: winter or all-season tyres bearing the alpine pictogram, fitted to the car.
- Removable equipment: approved chains or snow socks carried on board, sized for at least two driven wheels.
- Studded tyres fall under a separate regime with its own authorised period; you rarely meet them on a rental.
- Some vehicle categories and some roads are covered by specific provisions: that is the part to re-read on the official source.
The signs to recognise on the road
The entry to a zone is marked by a compulsory winter equipment sign, and the exit by the same image struck through. On the climbs you will also meet temporary signs put out by the road services when the carriageway is under snow: those require chains to be fitted there and then, and a car on winter tyres alone has to stop and chain up. Some passes and access roads close by prefectoral order during avalanche risk or snow clearing, so local radio and the departmental traffic information service are the right morning habit.
Winter tyres, chains or snow socks: what to choose on a rental
| Equipment | What it is worth on a rental | What to watch |
|---|---|---|
| Winter tyres with the alpine pictogram | Nothing to fit, nothing to forget, and a genuine gain in grip as soon as the road is cold, even without snow. | Check the pictogram on the sidewall of all four tyres, not just the line in the contract. |
| Metal chains | Maximum grip on packed snow and ice, and the only valid option when a temporary sign demands them. | You have to know how to fit them: practise once in the dry and in daylight, before you need them at night. |
| Snow socks | Quick to slip on, light, and enough to cover the last few kilometres up to the village. | They wear out very fast on dry asphalt and are not suited to long cleared stretches. |
| Four-wheel drive | Reassuring on the climb and useful on the badly cleared access to a hamlet or a car park. | It does not replace the required equipment: the rule is about tyres and chains, not about the drivetrain. |
One detail people discover too late: tyres, wheel rims, glass and the underbody are frequently treated separately in a rental's cover. And winter is exactly what punishes them. A badly tensioned chain scores a rim within a few turns of the wheel, grit from the salting trucks stars a windscreen, and a kerb hidden under snow scrapes a sill nobody had looked at. So before you sign, ask what the protection on offer actually covers and what stays on your account.
At the counter: the checks that prevent nasty surprises
- 1Read the winter equipment line in the contract: is it tyres fitted to the car, or chains supplied in the boot?
- 2Step outside and look at the tyre sidewalls: either the alpine pictogram is moulded there, or it is not.
- 3Open the boot: chains or snow socks should be there, in the right size, with the instructions and a pair of gloves.
- 4Do the condition report in daylight, sills and rims included, and photograph whatever is already damaged.
- 5Check the ice scraper and winter washer fluid, then the warning triangle and high-visibility vest, which must be carried in the vehicle.
- 6Note the assistance number and the counter's closing time: in winter, a late flight or train is paid for in hotel nights.
Driving up to the resort without frightening yourself
Speed limits do not relax because it is snowing, they tighten. On the motorway, 130 km/h in dry weather becomes 110 km/h in rain; on a dual carriageway with a central separator, 110 km/h becomes 100 km/h. On ordinary two-way roads the base is 80 km/h, raised to 90 km/h on some roads by the departement, and 50 km/h in built-up areas. And as soon as visibility drops below 50 m, whether from valley fog, falling snow or spindrift blown across the road, the limit becomes 50 km/h everywhere.
- Climb smoothly and avoid stopping in a hairpin: pulling away uphill on packed snow is the real trap.
- Brake early and in a straight line, and leave a gap that would look absurd on the flat.
- Fit chains before the slope, in a cleared lay-by, vest on, and not in the bend where you are already stuck.
- Take them off as soon as the road is cleared and salted: they damage themselves and they damage the car.
- Licence held under 3 years: 110 km/h on the motorway, 100 km/h in rain, and a blood alcohol limit of 0,2 g/L instead of 0,5 g/L, which in practice means nothing at all after the apres-ski.
- Leave early on Saturday: changeover days saturate the valley approaches and the last few kilometres can swallow a morning.
Roof box, ski rack and loading
A roof box changes the car: a higher centre of gravity, more windage on the passes, more noise, higher fuel consumption and a greater overall height. It is perfectly drivable, just more gently, and it is arranged at booking rather than in the car park.
- Ask for roof bars and a ski rack when you book: not every car has mounting points, and you will not find them on the way.
- Check in the contract that fitting a box is allowed, and who covers the box itself if it is damaged.
- Beware of covered car parks at resorts, stations and airports: the height barrier takes no notice of your roof box.
- Keep the chains in the cabin rather than under the luggage: you will want them at the least convenient moment.
- Skis inside an estate or a van work, as long as they are strapped down, because a loose ski becomes a projectile under braking.
Booking a car that is already equipped, with no surprise line
Renting in the mountains is mostly about avoiding the supplement you discover at the counter, in high season, when there is no fallback left. On DRIVO the price is shown in full before you pay: every item is visible, including the DRIVO service fee, shown on its own line and refunded with a free cancellation or an agency cancellation. The security deposit and what is included appear before you book, confirmation is instant, and cancellation is free up to 48 hours before pick-up. An optional full-protection add-on can be added at checkout to lower the excess. DRIVO brings together independent and local rental agencies as well as private owners across Europe and North Africa: down in the valleys these are often small outfits who know the road up to the resort better than anyone. Listings and support exist in five languages, assistance is reachable on WhatsApp or in the app, and beyond cars the marketplace also covers vans and utility vehicles, motorhomes and campervans wherever local supply exists.
Do I need winter tyres or chains in a rental car?
Either one. In a commune covered by the rule, the car is compliant if it has winter tyres with the alpine pictogram, or if it carries chains or snow socks usable on its driven wheels. Ask which of the two your contract provides, and check it before you drive off.
Is the agency liable if the car is not equipped?
If you are stopped it is the driver who is fined, not the rental company, and the vehicle can be immobilised. That is why the winter equipment must be stated in the contract and checked with your own eyes in the agency car park.
Are all-season tyres enough?
Only if they carry the alpine pictogram, the three-peaked mountain with a snowflake moulded into the sidewall. A commercial marking without that pictogram does not make you compliant, even if the tyre behaves well in the cold.
Does four-wheel drive exempt me from the equipment?
No. The rule is about tyres and about chains on board, not about the drivetrain. All-wheel drive helps you move off, but it does not brake any better on ice and exempts you from nothing.
When does the obligation apply, and where do I find the list of communes?
From early November to the end of March, in the designated communes of the massifs. The list is set by prefectoral decision, it changes, and only the official French government source counts: check it before each trip.