How we source and check this

Every rule, charge and fine on this site comes from the authority that publishes it, with a link to the page and the date we read it. Here is how we find those figures, how we keep them current, and what we do when we cannot confirm one.

238schemes published

207cities

44countries

1261sourced facts

918sources checked automatically

27zone boundaries held

Every figure has a source

Official pages only. A charge, an operating time, an emission standard or a fine is published here only with the authority behind it, the exact page, and the date we read it.
No source, no figure. A record with a value and no source cannot be built, let alone published. That is checked automatically every time the site is built.
Gaps are stated, not filled. Where we could not confirm something, the page says so and explains why. Across the 238 published pages there are 1261 sourced facts and 643 places where we tell you we do not know.
Holding back is normal. A scheme we cannot back up well enough is not published. We hold back 1 today.

How we keep it current

When we read a source, we record the exact wording that supports each figure.
A checker fetches the page again and looks for that wording. 893 sources are checked this way.
If the wording is still there, the page stays up and its review date moves on.
If it has changed, the page comes out of search results until a person has re-read the source.
If the authority's site is simply down, nothing changes. A slow server should not take a correct page offline.

A further 25 sources are checked a second way: official documents whose text cannot be selected. For those we record the file's fingerprint and check that it has not been replaced. That does not tell us which sentence changed, and a later act published elsewhere is still something only a person finds.

138 sources (mostly PDFs and pages built in the browser) are re-read by a person before their review date.

Right now every publisher we rely on answers our checker.

Zone boundaries

For 27 of the 238 schemes, the authority publishes the zone's exact boundary under terms that let us use it. For those, the route planner tests your route against the boundary and tells you whether you enter. For the rest, it can only tell you that your route passes through a city that runs the scheme, and every warning says which of the two it is.

We match each boundary to its scheme by the authority's own name for it, never just because it is nearby. Where a route passes within half a kilometre of an edge, we never call it clear.

The 27 boundaries we hold, with their publisher and licence

Zone	City	Published by	Licence
Lage-emissiezone (LEZ) Antwerpen	Antwerp	OpenStreetMap contributors	Open Database License (ODbL) v1.0
Low Emission Zone (LEZ) Brussels	Brussels	OpenStreetMap contributors	Open Database License (ODbL) v1.0
Lage-emissiezone (LEZ) Gent	Ghent	Dienst Milieu & Klimaat — Stad Gent	Modellicentie Gratis Hergebruik Vlaanderen v1.0
Зона „Голям ринг“ — зона с ниски емисии на вредни вещества	Sofia	OpenStreetMap contributors	Open Database License (ODbL) v1.0
Зона „Малък ринг“ — зона с ниски емисии на вредни вещества	Sofia	OpenStreetMap contributors	Open Database License (ODbL) v1.0
Umweltzone Berlin	Berlin	Geoportal Berlin / Senatsverwaltung für Mobilität, Verkehr, Klimaschutz und Umwelt	Datenlizenz Deutschland – Zero – Version 2.0
Zona de Baixes Emissions (ZBE) Rondes de Barcelona	Barcelona	Àrea Metropolitana de Barcelona — Àrea de Mobilitat i Transport	Creative Commons Attribution 4.0
Zona de Bajas Emisiones de la Ciudad de Málaga	Málaga	Ayuntamiento de Málaga — Medio Ambiente y Sostenibilidad	Creative Commons Attribution 4.0
Zona de Bajas Emisiones de Zaragoza — ZBE Primera Fase (Casco Histórico)	Zaragoza	Ayuntamiento de Zaragoza — Servicio de Planificación y Tecnologías de la Movilidad (IDEZar)	Condiciones generales para la puesta a disposición de los documentos reutilizables del Ayuntamiento de Zaragoza
Zone à Faibles Émissions mobilité (ZFE-m) de la Métropole de Lyon	Lyon	Point d'Accès National transport.data.gouv.fr	Licence Ouverte / Open Licence v2.0
Zone à Faibles Émissions mobilité (ZFE-m) de Marseille	Marseille	Point d'Accès National transport.data.gouv.fr	Licence Ouverte / Open Licence v2.0
Zone à Faibles Émissions métropolitaine (ZFE)	Paris	Direction de la Voirie et des Déplacements — Ville de Paris	Open Database License (ODbL) v1.0
Zone à Faibles Émissions mobilité (ZFE-m) de la Métropole Rouen Normandie	Rouen	Point d'Accès National transport.data.gouv.fr	Licence Ouverte / Open Licence v2.0
Zone à faibles émissions mobilité (ZFE-m) de Saint-Étienne Métropole	Saint-Étienne	Point d'Accès National transport.data.gouv.fr	Licence Ouverte / Open Licence v2.0
Zone à Faibles Émissions (ZFE) de Toulouse Métropole	Toulouse	Point d'Accès National transport.data.gouv.fr	Licence Ouverte / Open Licence v2.0
Bradford Clean Air Zone (Class C+)	Bradford	City of Bradford Metropolitan District Council	Open Government Licence v3.0
Glasgow's Low Emission Zone	Glasgow	Glasgow City Council (GlasgowGIS)	Open Government Licence v3.0
Sheffield Clean Air Zone (Class C)	Sheffield	Sheffield City Council	Open Government Licence v3.0
Zona a Traffico Limitato (ZTL) 5 sector: A, B, F, G, O	Florence	Comune di Firenze — Direzione Infrastrutture di Viabilità e Mobilità	Creative Commons Attribution 4.0
Area B	Milan	Comune di Milano / AMAT — Agenzia Mobilità Ambiente Territorio	Creative Commons Attribution 4.0
Area C	Milan	Comune di Milano / AMAT — Agenzia Mobilità Ambiente Territorio	Creative Commons Attribution 4.0
Milieuzone Amsterdam	Amsterdam	OpenStreetMap contributors	Open Database License (ODbL) v1.0
Piggdekkavgift, Bergen kommune	Bergen	OpenStreetMap contributors	Open Database License (ODbL) v1.0
Piggdekkgebyr, Oslo kommune	Oslo	OpenStreetMap contributors	Open Database License (ODbL) v1.0
Piggdekkgebyr, Trondheim kommune	Trondheim	OpenStreetMap contributors	Open Database License (ODbL) v1.0
Zona de Emissões Reduzidas 1	Lisbon	Câmara Municipal de Lisboa — Geodados CML	Creative Commons Attribution 4.0
Zona de Emissões Reduzidas 2	Lisbon	Câmara Municipal de Lisboa — Geodados CML	Creative Commons Attribution 4.0

Public holidays

Many schemes switch off on public holidays, so "is it on when I arrive?" depends on the date. We take holiday lists from official publishers and never calculate them ourselves. Outside the period a list covers, the answer says it cannot tell. For 29 schemes we hold no calendar at all; for those we treat a holiday as an ordinary day, which can over-warn but never sends you into a zone that is running.

The 5 holiday lists in use

List	Published by	Covers	Schemes
the official French public holidays for metropolitan France	Direction interministérielle du numérique (DINUM) — data.gouv.fr	2025-01-01 to 2031-12-31	1
the official Catalan calendar of public holidays	Generalitat de Catalunya. Departament d'Empresa i Treball	2025-01-01 to 2026-12-31	1
bank holidays in England and Wales	Government Digital Service — GOV.UK	2025-01-01 to 2028-12-31	1
the Swedish Transport Agency's 2026 list of days with no congestion tax in…	Transportstyrelsen (Swedish Transport Agency)	2026-01-01 to 2026-12-31	1
the Swedish Transport Agency's 2026 list of days with no congestion tax in…	Transportstyrelsen (Swedish Transport Agency)	2026-01-01 to 2026-12-31	1

What this site does not do

Where we do not hold a zone's boundary, it cannot say whether your exact streets enter the zone, only that the city on your route operates it.
It tests the route line from the routing service, not your actual drive.
It does not tell you whether your own vehicle is allowed in. Each scheme page links the authority's own checker.
It is not legal advice. Rules change, so read the authority's page before you travel.

Corrections

If a figure here disagrees with the authority's own page, the authority is right. Tell us through the contact details on the About page and we will take the page down until it has been re-checked.

Countries we cover Plan a route What the schemes mean