If a major modification has been made to your vehicle, what must you do?

A)Have an ITV (technical inspection) to certify said modification.Correct
B)Nothing, as long as the modification has been carried out by an authorised workshop.
C)Wait until the vehicle has to pass its next ITV to declare the modifications then.
When a major modification has been carried out on a vehicle, a technical inspection must be performed to certify said modification before driving normally again.