Crit'Air 2026 Rule Changes - What UK Drivers Need to Know

The Crit’Air system saw significant changes in 2026: new cities enforcing low-emission zones, Paris tightening its weekday restrictions, Lyon starting to fine Crit’Air 3 vehicles, and a high-profile attempt to abolish ZFEs that was ultimately struck down. If you are a UK driver planning a trip to France this year, here is everything you need to know about the updated rules.

The January 2026 mandate: all cities over 150,000

The biggest change in 2026 is the enforcement of the national ZFE mandate. Under the 2019 Loi d’Orientation des Mobilites (LOM), every French city with a population exceeding 150,000 was required to establish an active ZFE-m (low-emission zone) by 1 January 2026.

This added several new cities to the list, including:

• Montpellier - ZFE now covers the city centre and inner ring
• Rennes - new ZFE within the rocade (ring road)
• Nantes - ZFE covering the central city area
• Toulon - ZFE active in the city core
• Dijon - central zone now enforced

These join the established ZFEs in Paris, Lyon, Marseille, Strasbourg, Grenoble, Toulouse, Nice, Rouen, and others that have been operating for several years.

For UK drivers, the practical impact is clear: almost any urban driving in France now requires a Crit’Air sticker.

Paris Crit’Air 3 weekday ban

Paris tightened its restrictions from January 2026. The key change:

Crit’Air 3 vehicles are now banned within the Paris ZFE on weekdays (Monday to Friday) between 8am and 8pm.

This affects most diesel vehicles registered between January 2006 and December 2010, and petrol vehicles registered between January 1997 and December 2005.

What Crit’Air 3 drivers can still do in Paris

• Weekends and public holidays - Crit’Air 3 vehicles are permitted with no time restriction
• Outside the ZFE boundary - the ban applies within the A86 ring road only
• 24-pass scheme - Paris offers a system of 24 single-day passes per year for restricted vehicles, allowing occasional weekday access. Passes must be registered online at pass.paris.fr before entering the zone

What is still banned at all times in Paris

Crit’Air 4, Crit’Air 5, and unclassified vehicles remain banned from the Paris ZFE at all times, including weekends. This has not changed.

The ZFE abolition that was struck down

The biggest political story of 2026 was the attempt to scrap ZFEs entirely. After years of debate, parliament finally voted it through: the National Assembly approved abolition on 14 April 2026 and the Senate on 15 April 2026, as part of a wider “simplification” law.

For a few weeks it looked as though ZFEs and the Crit’Air requirement might disappear. Then, on 21 May 2026, the Constitutional Council struck the measure down, ruling it a “cavalier législatif” - a provision unrelated to the bill it had been attached to. That decision is final.

The result:

• The abolition never became law
• No existing ZFE has been removed or suspended
• All current sticker requirements remain fully in force

If the government wants to abolish ZFEs in future it will have to start again with fresh legislation, and there is no timeline for that. For now, if you are driving to France in 2026 you need a Crit’Air sticker. Travelling without one is a gamble that could cost you between €68 and €450 in fines.

Lyon starts fining Crit’Air 3 from 1 July 2026

Enforcement is tightening as well as expanding. Lyon Métropole begins issuing fines (verbalisation) for Crit’Air 3 vehicles in its ZFE from 1 July 2026. Until now Lyon had run a grace period, so this is a real change for anyone driving an older diesel or petrol car into the city.

By contrast, Paris and Grenoble sit at opposite ends:

• Paris confirmed it will issue no fines in 2026 - its “pedagogical” phase is extended by a year, and Crit’Air 3 vehicles can use the 24h pass without penalty until December 2026
• Grenoble has been fining non-compliant vehicles for some time (€68 for a car), and continues to do so

The takeaway: enforcement now varies city by city, so do not assume a quiet experience in one city means another will be lenient.

Timeline of key Crit’Air changes

Here is how the system has evolved:

Year	Change
2017	Crit’Air system launched. Paris and Lyon first to adopt.
2019	LOM law passed, mandating ZFEs for cities over 150k by 2025 (later pushed to 2026).
2021	Strasbourg, Grenoble, and Toulouse activate ZFEs.
2023	Marseille, Nice, and Rouen ZFEs go live.
2024	ANPR camera enforcement begins in Paris and Lyon. Crit’Air 4 banned weekdays in Paris.
2025	Parliamentary debate on ZFE relaxation. More cities prepare for 2026 mandate.
2026	All cities over 150k must have active ZFEs. Paris bans Crit’Air 3 on weekdays. Parliament votes to abolish ZFEs (April), Constitutional Council strikes it down (May). Lyon fines Crit’Air 3 from July.

What might change next

Several developments are worth watching through the rest of 2026:

Crit’Air 2 diesel restrictions

Paris has signalled an intention to restrict Crit’Air 2 diesel vehicles from 2027. This would affect diesel vehicles registered between January 2011 and August 2015 (Euro 5). No formal date has been set, and this is subject to political approval.

Expanded ANPR enforcement

More cities are rolling out automated ANPR camera systems to detect vehicles without valid stickers. As of mid-2026, cameras are active in Paris, Lyon, Marseille, Strasbourg, Toulouse, and Grenoble. Additional cities are expected to follow throughout the year.

A renewed abolition attempt

The 2026 abolition was struck down on a technicality (an unrelated rider in a wider law), not on the principle, so opponents of ZFEs may try again with standalone legislation. If they do, it would still take months to pass and survive Constitutional Council review. Paris, Lyon, and other major cities are expected to maintain their ZFEs regardless of national legislation changes.

What UK drivers should do right now

The advice is straightforward: get your Crit’Air sticker before you travel. The political debate in France is interesting but irrelevant to your trip planning. Every ZFE that existed yesterday is still active today, and new ones have been added.

At £7, the sticker is valid for the lifetime of your vehicle and covers you for every trip to France. Check your vehicle’s category using the lookup tool above, and apply before your next trip.