As from July 1st, 2026, a surcharge for CO₂ emissions will be applied to the rates of the kilometer charge in Flanders. To determine the CO₂ emission class of a vehicle, use our CO₂ emission class calculator

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Do you have a question or comment about Viapass? Please do not hesitate to contact us using the contact form below. We'll get back to you as soon as possible. If you have any questions about your On Board Unit, please call your service provider, not Viapass.

To be able to drive in Belgium with a trial plate without On Board Unit, all conditions must be met.