It shall reflect the complexity of the structure of the vehicle, system, component or separate technical unit to be tested in relation to the requirements of the relevant regulatory act and its boundary conditions.
Léireoidh sí castacht struchtúr na feithicle, an chórais, na comhpháirte nó an aonaid theicniúil ar leithligh ar a bhfuil tástáil le déanamh i ndáil le ceanglais an ghnímh rialála ábhartha agus a choinníollacha teorann.