Drivers in France reminded of this little-known, strict car wash rule to avoid large fines

Environmental regulations impose a €450 fine – even outside drought periods

Car washing is not always illegal on private property but it can cause issues when wastewater reaches a public area

Washing a car outside of designated facilities can lead to fines in France - even when drought restrictions are not in place. 

The regulations against unauthorised car washing are designed to prevent pollution caused by wastewater runoff, backed by a standard fine of €450.

If the activity results in proven environmental harm - such as the release of detergents, oil, or other pollutants into the soil or water - the penalties may rise to €75,000 and up to two years in prison, as set out in Article L216-6 of the Environmental Code.

Where is prohibited to wash your car in France?

Washing a vehicle on public roads is prohibited in France. This includes:

  • Public highways

  • Private roads open to public traffic

  • Pavements and walkways

  • Riverbanks, harbours and quays

  • Public parks and gardens

The ban applies regardless of drought status.

On private property, car washing is not automatically illegal. However, if wastewater reaches a public area - such as through runoff from a driveway - it can lead to a fine. 

The reasoning behind this ban is that the water used in vehicle washing typically contains detergents, oil residues and other pollutants. 

When discharged into drains or allowed to soak into the soil, this can contaminate groundwater and surface water systems. 

Recommended alternatives

Drivers are instead advised to use certified car washes, which are equipped with systems to treat and recycle wastewater in accordance with environmental rules.

Dry-cleaning methods and eco-friendly cleaning products are also acceptable alternatives and may reduce both water consumption and environmental risk.

Additional bans during droughts

Further bans on water use may be introduced by local authorities and prefectoral decrees during periods of drought. 

These decrees can prohibit car washing entirely, both on private land and in car washes, depending on the severity of the drought and local water levels. 

Fines may be issued for non-compliance, even if it does not cause any pollution.