The roadworthiness test is the test vehicles periodically have to through at an officially approved testcompany. The following rules apply since 20 May 2018: - a new car has to be inspected latest 36 months (3 years) after the month it was used for the first time - the second inspection should be conducted latest 24 months (2 years) after it passed the first inspection - after that the general rule applies; latest 14 months after the month the most recent inspection was conducted (so this rule applies to every car that is older than 5 years) The last day of the inspection period is always on the last day of the month. At a regular roadworthiness test an environmental check will be conducted, as well as a noise level check. If you don’t let you car be inspected in time for the roadworthiness test, then it will automatically be banned from driving. If that happens you’re only allowed to drive it to a workshop to repair it or to an inspection company to let it be inspected for the roadworthiness test, if the car is still registered. All minor faults you get at a roadworthiness test should be taken care of as soon as possible, even those for which you don’t have to come back for a follow-up test. If you do not take care of these minor faults before the next inspection then that would lead to the requirement of a follow-up test at that inspection. The reason they are less strict when it comes to minor faults is that otherwise it would be very inconvenient and costly to have to come back for an inspection every time for a minor fault. You should take care of these issues as soon as possible and not use the car more then you need.