 While this system means no cars are listed as being due in November and December there is a 2 month grace period where a vehicle can be inspected up to 2 months after the due date without penalty i.e.a car with a license plate ending in 0 can be inspected as late as December without penalty.Vehicles are also allowed to be inspected up to 6 months before they are due although it is not possible to do so if it is still the previous year i.e.