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The most frequently asked questions about the new toll billing by CO2 class in the EU

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When you order the toll in future, you will have to specify the CO2 class of your vehicle. Vehicles with low CO2 emissions will benefit from lower toll rates, while vehicles with high CO2 emissions will pay higher rates.

The rule is: the more environmentally friendly your vehicle is, the cheaper the toll rate will be.

Don't worry, with our {{"link": "/uk/en/toll/co2-class-calculator", "linkStyle": "default", "linkTitle": "DKV Mobility CO2 Class Check", "linkType": "internal", "aria-label": "DKV Mobility CO2 Class Check", "linkLabel": "DKV Mobility CO2 Class Check", "target": "_self"}} we will guide you through the entire process and help you to determine the right CO2 class for your vehicle.

Find out which documents you should have to hand under "Which vehicle data is relevant for determining the CO2 class and where can I find it?".

If your result is CO2 class 2, 3, 4 or 5, please upload the certificate of conformity (COC) and your registration certificate part 1 or alternatively the customer information document (CIF) together with your registration certificate Part 1 in the upload area in the {{"link": "/uk/en/digital-solutions/customer-portal/customer-account", "linkStyle": "default", "linkTitle": "DKV Cockpit", "linkType": "internal", "aria-label": "DKV Cockpit", "linkLabel": "DKV Cockpit", "target": "_self"}} in order to obtain a better vehicle class for the {{"link": "/uk/en/toll/toll-boxes/dkv-box-europe", "linkStyle": "default", "linkTitle": "DKV BOX EUROPE", "linkType": "internal", "aria-label": "DKV BOX EUROPE", "linkLabel": "DKV BOX EUROPE", "target": "_self"}} and DKV BOX FLEX. It is not necessary to submit the documents for vehicles with CO2 class 1.

The required vehicle data* can be found in the Certificate of Conformity (COC), in the Customer Information File (CIF), or in the Registration Certificate Part 1:

• Vehicle class
• Wheel axle configuration
• Technically permissible gross weight when loaded (F1) [kg]
• Vehicle group
• Berth (sleeping cabin)
• Rated power of the motor [kW]
• Specific CO2 emissions [gCO2/tkm]
• Date of first registration
• Vehicle type/chassis configuration

*Subject to alterations

The five CO2 classes initially only apply to commercial vehicles in vehicle classes N2/N3 with a weight of more than 7.5 tonnes and first registration from 1 July 2019. Until now, the future {{"link": "/content/dam/dkv/assets/documents/maut/co2/informative-note-detailing-the-thresholds-of-co2-emission-classes.pdf", "linkStyle": "default", "linkTitle": "reference values (PDF)", "linkType": "file", "aria-label": "reference values (PDF)", "linkLabel": "reference values (PDF)", "target": "_blank"}} for determining the CO2 class have been defined for vehicle groups 4, 5, 9 and 10 with their subgroups.

From the beginning of 2025, CO2 tolling will also be extended to vehicle groups 1, 2, 3, 11, 12 and 16. You will find an {{"link": "#CO2vehicle groups", "linkStyle": "default", "linkTitle": "overview of the CO2 vehicle groups in the table", "linkType": "jumpmark", "aria-label": "overview of the CO2 vehicle groups in the table", "linkLabel": "overview of the CO2 vehicle groups in the table", "target": "_self"}} below.

There are currently no specific regulations or reference values for buses and coaches and some vehicle subgroups of vehicle classes N2 and N3. They are therefore provisionally assigned to CO2 class 1.

Vehicles registered before July 2019 are also automatically assigned to class 1. Emission-free vehicles that were registered before 1 July 2019 can be assigned to CO2 class 5 upon presentation of the relevant evidence.

• If the toll country has already introduced CO2 classes for the toll tariff, the F1 value (technically permissible total weight when laden) must now be proven when ordering tolls. 3. Furthermore, we recommend submitting the COC (Certificate of Conformity) or alternatively the CIF (Customer Information File) together with the Registration Certificate Part 1. If the relevant vehicle documents are not available, the vehicle will automatically be assigned to CO2 class 1 (the most expensive tariff class).
• Vehicles registered before July 2019 are automatically assigned to CO2 class 1. Emission-free vehicles that were registered before 1 July 2019 can be assigned to CO2 class 5 upon presentation of appropriate evidence.
• Vehicles registered from July 2019 onwards are assigned to one of the five CO2 classes.
• The F1 value (technically permissible total weight when loaded) is required for existing toll contracts and new orders. You can upload this proof in the {{"link": "/uk/en/digital-solutions/customer-portal/customer-account", "linkStyle": "default", "linkTitle": "DKV Cockpit", "linkType": "internal", "aria-label": "DKV Cockpit", "linkLabel": "DKV Cockpit", "target": "_self"}}.
• Six years after the initial registration date, the vehicles are reclassified according to CO2 classes 2 and 3.

The previous Euro emission class of your vehicle remains unchanged. However, the reference values for categorising the CO2 classes will be reduced by a percentage value each year. This reduction rate is 2.5% per year until 2026 and 3% per year from 2027. The vehicle will be reclassified - automatically by DKV Mobility for {

{"link": "/uk/en/toll/toll-boxes/toll-boxes-overview", "linkStyle": "default", "linkTitle": "DKV toll boxes", "linkType": "internal", "aria-label": "DKV toll boxes", "linkLabel": "DKV toll boxes", "target": "_self"}} - every 6 years from the date of initial registration (only applies to CO2 classes 2 and 3).

From 01.12.2023, the F1 weight of the vehicle is decisive for the assignment of the weight class and not the F2 weight as before. The F1 weight refers to the technically permissible total mass of the vehicle, while the F2 weight describes the permissible total mass in the respective country of registration. It is important to ensure that the driver adjusts the correct setting of the F1 weight class (incl. trailer) in the toll registration device / OBU. In addition, customers with a Toll Collect OBU must also enter the correct weight in the Toll Collect portal.

Currently, vehicles in vehicle groups 4, 5, 9 and 10 are subject to CO2 toll differentiation. Vehicle groups 1, 2, 3, 11, 12 and 16 are expected to be added during the course of 2026. An exact date has not yet been set. The new vehicle groups are as follows:

• a) Trucks with 4x2 axle configuration and a vehicle weight of 7.5 - 16 t
• b) Trucks with 6x4 axle configuration (all weights)
• c) Solo truck with an 8x2 axle configuration (all weights)

An additional expansion to vehicle groups 1s, 51/53/52/54 is planned for 2027:

• Vehicles in group 1s = "heavy goods vehicles" (> 7.4 - 7.5 t)
• Vehicles in group 51 = "medium-duty trucks" (> 5 - 7.4 t), solo truck or tractor unit, 4x2 axle configuration, front-wheel drive
• Vehicles in group 52 = "medium-duty trucks" (> 5 - 7.4 t), van, 4x2 axle configuration, front-wheel drive
• Vehicles in group 53 = "medium-duty trucks" (> 5 - 7.4 t), solo trucks or tractor units, 4x2 axle configuration, single drive axle that is not the front axle
• Vehicles in group 54 = "medium-duty trucks" (> 5 - 7.4 t), van, 4x2 axle configuration, single drive axle that is not the front axle