RDW emission zone API — ZE zone licence plate check for fuel type and Euro standard. Check whether a vehicle may enter Zero Emission zones via RDW Open Data.

GET /v1/logistics/emission-zone

Determines whether a vehicle is permitted to enter the Zero Emission (ZE) zones of Amsterdam, Rotterdam, Utrecht, Den Haag, and Eindhoven.

The verdict is based on the vehicle's fuel type and Euro emission standard as registered in RDW Open Data — no GeoJSON polygon lookup is performed. The binary emission-standard rule covers the practical fleet management question: "Can I send this van into the city centre?"

Request parameters

Parameter	Type	Required	Description
`kenteken`	string	✓	Dutch license plate, e.g. `V-123-AB` or `V123AB` (hyphens optional)

Example request

curl -H "X-API-Key: YOUR_KEY" \
  "https://api.omnizoek.nl/v1/logistics/emission-zone?kenteken=V123AB"

Example response — non-compliant

{
  "kenteken": "V-123-AB",
  "ze_compliant": false,
  "fuel_types": ["Diesel"],
  "euro_standard": "Euro 5",
  "emission_category": "D",
  "vehicle_category": "N1",
  "reason": "Euro 5 diesel — not permitted in any Dutch ZE zone from 2025 onwards.",
  "zones_checked": ["Amsterdam", "Rotterdam", "Utrecht", "Den Haag", "Eindhoven"]
}

Example response — compliant

{
  "kenteken": "EV-001-X",
  "ze_compliant": true,
  "fuel_types": ["Elektriciteit"],
  "euro_standard": null,
  "emission_category": null,
  "vehicle_category": "M1",
  "reason": "Zero-emission vehicle — always compliant in all Dutch ZE zones.",
  "zones_checked": ["Amsterdam", "Rotterdam", "Utrecht", "Den Haag", "Eindhoven"]
}

Response fields

Field	Type	Description
`kenteken`	string	Formatted license plate with hyphens
`ze_compliant`	boolean	`true` if the vehicle may enter all five major ZE zones
`fuel_types`	array	Fuel type(s) as registered in RDW
`euro_standard`	string \| null	Euro emission standard, e.g. `"Euro 6"`
`emission_category`	string \| null	Emission category code from RDW
`vehicle_category`	string \| null	European vehicle category, e.g. `"M1"`, `"N1"`
`reason`	string	Human-readable compliance verdict
`zones_checked`	array	ZE cities included in the assessment

Compliance rules (2025/2026)

Vehicle type	Compliant?
Fully electric / hydrogen	✅ Always
Euro 6 petrol or diesel	✅ Through 2029
Euro 5 diesel	❌ Not from 2025
Euro 5 petrol	❌ Not from 2026
Euro 4 and below	❌ Never

Error responses

Status	Cause
`404`	License plate not found in RDW
`503`	RDW Open Data API is unreachable

Caching

RDW vehicle lookups are cached per normalised plate for 1 hour.

Notes

The compliance decision is based on rules effective 2025/2026. Rules may change — OmniAPI will update the embedded table accordingly.
City-specific polygon containment (is this exact address inside a ZE zone?) is planned as a future v2 feature.

ZE Zone Compliance (RDW)