Grenoble ZFE Crit'Air 3 rules, hours, fines and visitor tips

Look at the sticker and the clock. Since 1 January 2025, Crit'Air 3 cars may no longer drive from 7:00 to 19:00, Monday to Friday, in the 13 communes. Crit'Air 4, 5 and unclassified vehicles were already banned.

A Crit'Air 0, 1 or 2 is not on that list. At the weekend, the page that describes Crit'Air 3 does not set the 7:00–19:00 window.

From 7:00 to 19:00, Monday to Friday, a Crit'Air 3, 4, 5 or unclassified car does not drive in the 13 communes. At the weekend, that window is not written for Crit'Air 3.

The Metropole has announced a period without fines for this restriction. It has not published an end date you can use to decide to enter. Plan the trip as if the fine can be issued.

Without a sticker, a fine can be issued even during that period. Order it only on certificat-air.gouv.fr. Ignore a text message that offers another link.

You leave a Crit'Air 3, 4, 5 or unclassified car before the 13 communes, on weekdays between 7:00 and 19:00. That has been the rule since 1 January 2025.

The announcement of a period without fines is not permission to enter. Without a sticker, a fine can be issued.

The page does not keep the time window for residents only. If you arrive on a weekday between 7:00 and 19:00 with a Crit'Air 3 or worse, you do not drive in the 13 communes.

Leave the car before the zone and continue another way. The page offers advice and grants, which are not automatic: they go through a mobility adviser.

The Crit'Air 3 page adds that the Metropole and SMMAG can cover public-transport subscriptions for 3 years, depending on resources. It is not automatic: the page points you to their support.