Toll calculation used to feel relatively predictable: choose the road, count the axles and check the emission class. CO₂ differentiation adds another layer. Across Europe, charging systems are gradually reflecting the climate performance of heavy vehicles, so the vehicle assigned to a job can change its real cost.
The difficulty is that the CO₂ class is not simply the Euro emissions standard. Registration date, vehicle group and certified CO₂ data may all matter, and classifications can require a later review. An operator who copies last year’s toll rate into every quotation can quietly lose margin on regular routes.
Fleet records should therefore include the toll-relevant data and the class registered with each toll provider. It is also worth checking onboard units after a vehicle change. A correct truck with an outdated account setting can still lead to an incorrect charge or a penalty.
For pricing, use a route-specific toll estimate and keep a small buffer where the classification is uncertain. Compare the estimate with the actual statement after the trip. That small routine turns tolls from a guess into a cost you can manage.
Official source: European Commission — road charging
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