Données / Data

The zones Gatelight knows and the rules that go with them are published as one open file. The app downloads this same file from here, so what you read on this page is what the app uses.

The files

This version

Data version
10 (format 1), data of 22 Oct 2026
zones-fr.json
1.3 MB, SHA-256 98c99993c815b4174df1bd3a0489fe87a45e85e7b789c8a3abc7219fd4bc7e56
Entries
26, of which 20 with rules checked against the official order and 6 that the app shows as “Rules unknown”

Licence notice

Base « Zones à faibles émissions — France », version 2026-10-22, publiée sous Open Database License (ODbL) 1.0 : https://opendatacommons.org/licenses/odbl/1-0/ . Modifications : normalisation, découpage par étapes, simplification des géométries, corrections d'après les arrêtés cités.

https://iliafiliaev.com/gatelight/data/zones-fr.json

Sources

Zones

ZoneRulesChecked
ZFE de Bordeaux MétropoleRules known to 31 Dec 202922 Oct 2026
ZFE de Caen la merRules known to 31 Dec 202922 Oct 2026
ZFE de Grenoble Alpes MétropoleRules known to 6 Jul 203122 Oct 2026
ZFE de la Métropole de LyonRules known to 31 Dec 202722 Oct 2026
ZFE de la Métropole Européenne de LilleNot checked yet: the app says “Rules unknown”—
ZFE de la Métropole Nice Côte d'AzurRules known to 17 Apr 202822 Oct 2026
ZFE de Montpellier Méditerranée MétropoleNot checked yet: the app says “Rules unknown”—
ZFE de Nantes MétropoleRules known to 31 Dec 202922 Oct 2026
ZFE utilitaires et poids lourds de Grenoble Alpes MétropoleRules known to 30 Jun 203022 Oct 2026
ZFE-m d'Angers Loire MétropoleRules known to 31 Dec 202622 Oct 2026
ZFE-m d'Annemasse AggloRules known to 31 Dec 203422 Oct 2026
ZFE-m de Clermont Auvergne MétropoleNot checked yet: the app says “Rules unknown”—
ZFE-m de Dijon MétropoleRules known to 31 Dec 202622 Oct 2026
ZFE-m de l'agglomération Pau Béarn PyrénéesNot checked yet: the app says “Rules unknown”—
ZFE-m de l'Eurométropole de StrasbourgRules known to 31 Dec 202722 Oct 2026
ZFE-m de la Métropole Aix-Marseille-ProvenceRules known to 31 Aug 203222 Oct 2026
ZFE-m de la Métropole Rouen NormandieRules known to 1 Sep 203222 Oct 2026
ZFE-m de la Ville de NîmesNot checked yet: the app says “Rules unknown”—
ZFE-m de Rennes MétropoleRules known to 29 Dec 203222 Oct 2026
ZFE-m de Saint-Étienne MétropoleRules known to 31 Dec 203422 Oct 2026
ZFE-m de Toulouse MétropoleRules known to 22 Feb 203222 Oct 2026
ZFE-m du Grand AnnecyRules known to 30 Dec 203422 Oct 2026
ZFE-m du Grand NancyRules known to 31 Dec 203422 Oct 2026
ZFE-m du Grand ReimsNot checked yet: the app says “Rules unknown”—
ZFE-m Le Havre Seine MétropoleRules known to 30 Dec 203422 Oct 2026
ZFE-m Métropole du Grand ParisRules known to 31 Dec 202922 Oct 2026

Licence

The file, with its table of rules, is published under the Open Database License (ODbL) 1.0. You may copy, share and adapt it under that licence: keep the attribution above, and if you publish an adapted database, share it under the same licence. This site adds no other conditions. Part of the perimeters come from ODbL databases (the national low-emission zone base, OpenStreetMap and some city open-data sets), which is why the whole file is under ODbL.

How the app uses it

The app checks for a newer file when you open it, at most once a day, and when you tap "Check for Update" in Settings. It reads index.json, checks its Ed25519 signature against a key built into the app, checks that the data is newer, downloads the file and checks its size and SHA-256 checksum. If any step fails, the file already on the phone stays. The app's Settings show the same sources under Sources and Licenses.

What the file is not

Gatelight is an unofficial app, and this file is not an official publication. It is not affiliated with the French state or with any city. The rules are retold from the official orders and may change: only the order itself is binding, and on the road, the signs. Every zone in the file links to its order and its own page.

Last reviewed 28 October 2026