Toll Weight Class tzGm vs. GVW

Difference between tzGm and zGG

The tzGm (technically permissible maximum mass, excluding persons) and the zGG (permissible total weight, including persons) both refer to the maximum mass with which a vehicle may be operated.

However, the two values differ in their specific meaning:

tzGm: Technically permissible maximum mass – excluding persons

• The tzGm denotes the maximum technically permissible mass of a vehicle including cargo, but excluding persons.

• The weight of the occupants is not taken into account for the tzGm.

• The tzGm refers to the maximum mass that the vehicle can carry and move according to the manufacturer's technical specifications.

• It takes into account the load limits of the vehicle components such as frame, axles, wheels and brakes, and ensures that the vehicle can be operated safely without overloading these components.

zGG: Permissible total weight – unladen weight + maximum load + persons

• The zGG describes the maximum permissible total weight including all persons on board.

• The zGG is generally set by law and must not be exceeded.

• To ensure road safety and protect road infrastructure, it is essential to avoid overloading.

Change as of 1 December 2023

Since 1 December 2023, the tzGm (technically permissible maximum mass, registration certificate part 1, field "F.1") has been used to calculate the toll. Previously, the zGG (permissible total weight, registration certificate part 1, field "F.2") formed the basis for calculation. In addition, there is a transitional arrangement: vehicles whose tzGm exceeds 3.5 t, but which were registered before 1 December 2023 and had a zGG of no more than 3.5 t up to that point, may continue to purchase vignettes and route tolls for vehicles up to 3.5 t tzGm until 31 January 2029.

The Europamaut team wishes you a pleasant journey!

In summary, the zGG is the legally defined upper limit for the permissible total weight of a vehicle in road traffic, while the tzGm represents the technically permissible mass that the vehicle may carry and move according to the manufacturer's specifications. To ensure road safety and the reliability of the vehicle, it is necessary to observe both limits.

We wish you a safe journey to Austria and are happy to help with any questions about toll regulations. You can find detailed information on the toll in Austria in our guide. Feel free to also use our route planner to plan your trip perfectly and see the suitable toll products displayed. Please contact us with any further questions about your trip or our digital vignette via our email.