Mountain law - compulsory snow tyres or chains

Presentation

The mountains in complete safety

From November, 1st 2021, the Mountain law will come into force in certain communes, including Chamrousse, highlighting safety in the mountains with the obligation to equip cars with chains or snow tyres.
  • Chamrousse french law mountain tyre snow chain winter ski resort grenoble isère alpes france - © Freepik

In summary

  • What: Mountain law applied in 2021 (law of modernisation, development and protection of mountain territories of 2016)
  • Who: cars, motor homes, heavy goods vehicles and coaches/buses
  • Where: 48 French departments, including Isère, located in the mountains (Alps, Corsica, Massif Central, Jura, Pyrenees and Vosges)
  • When: winter season from November, 1st to March, 31th
  • How: snow car equipment
  • How much: carry snow chains (metal or textile) for at least 2 driven wheels OR be equipped with 4 winter tyres (excluding vehicles equipped with studded tyres)
  • Why: to improve safety and limit traffic jams on mountain roads

In addition, a new signage system will gradually be introduced with specific signs at the entrances and exits of these mountain areas.
Note: a tolerance will be applied for the winter of 2021. Until now, this equipment was strongly recommended or even imposed by prefectural decree.
For more information, visit the French government website.
Ice ? Snow ? Closed passes? Itinisère offers you the possibility of keeping yourself informed of winter driving conditions before taking to the road.