vehicle registration certificate confirming its weight class (if the vehicle data has not been downloaded from the Central Register of Vehicles and Drivers (CEPiK)),
document confirming the exhaust emission class (if the vehicle data has not been downloaded from the CEPiK and the exhaust emission class is not included in the registration certificate),
online (the fastest method) via the Online Customer Account – click Log in to the OCA in the upper right corner;
in person at a Customer Service Facility (MOK) – find the nearest MOK on the map of Customer Service Facilities.
If, during registration in the OCA, after entering the vehicle registration number, the data from the CEPiK has not been downloaded automatically, enter manually the weight class from the vehicle registration certificate and the exhaust emission class from the document confirming the exhaust emission class.