Overview

The PTV Routing API supports the co2EmissionClass parameter as part of the vehicle profile. This parameter reflects the CO₂ emission class as defined by the European Union under Directive 1999/62/EC (Article 7ga) on the charging of heavy goods vehicles for the use of certain infrastructures.

Setting this parameter correctly ensures that toll costs are calculated accurately — for example, in Germany, the Lkw-Maut applies differentiated rates based on the emission class of the vehicle.

Parameter details

Valid values and their meaning:

Note: Values 2–4 require the vehicle's emissionStandard to be set to at least EURO_6. Using a value of 2–4 with a lower emission standard will result in an error.

Impact on toll calculation

The co2EmissionClass is relevant for toll calculations. Countries such as Germany have introduced CO₂-based toll surcharges as part of the Lkw-Maut reform. A higher emission class (lower emissions) results in reduced toll costs.

Example

To calculate a route for an electric truck (class 5), include the following in the vehicle section of your request:

{
 "vehicle": {
   "co2EmissionClass": 5
 }
}

For a Euro 6 combustion vehicle at the highest combustion class:

{
 "vehicle": {
   "co2EmissionClass": 4,
   "emissionStandard": "EURO_6"
 }
}

Further information

Full parameter reference: Routing API Reference – calculateRoute