What the check actually reads
A milieuzone ban is set by emission class, not by how old the van looks. Two vehicles built the same year can land on opposite sides of a ban. Fleetkeur pulls the authoritative fields from the RDW open kentekenregister:
- Euro class — the emission standard the vehicle was type-approved under (Euro-4, Euro-5, Euro-6).
- First-registration date — drives transition rules where a city grandfathers vehicles registered before a cut-off.
- Fuel type — diesel, petrol, electric; ZE-zones care about this directly.
- Milieulabel & exemption certificates — any active ontheffing already on file.
Why dispatchers get caught
The common failure is assuming Euro-5 is "recent enough." In the strictest Amsterdam Centrum and Rotterdam ZE perimeters a Euro-5 diesel is restricted today, and Euro-4 diesel is out as of 2026. A routing app that does not read the kenteken cannot know this — it optimises distance, not compliance. That is the gap covered in why Routific and Onfleet miss local emission zones.
From check to plan
Inside the dispatch console, the check runs on every assignment, cached for 24 hours and refreshed before the next plan. If a vehicle fails the destination's ruleset, the assignment is blocked before the dispatcher confirms it — with alternates: swap the vehicle, shift the window, or file a daily ontheffing.
City rules vary
A kenteken that clears one binnenstad can be fined in the next. See the per-city detail for Amsterdam milieuzone and Rotterdam ZE-zone, or compare the three largest LEZs in our Rotterdam / Utrecht / Amsterdam comparison.
Fleetkeur reflects publicly available RDW and municipal data. Verify with the relevant gemeente for legally definitive guidance.