At the choice of the manufacturer one of the following durability test procedures shall be used to provide evidence to the approval authority that the environmental performance of a type-approved vehicle is durable:
Ar rogha an mhonaróra, déanfar ceann amháin de na tástálacha marthanachta a leanas a úsáid chun fianaise a sholáthar don údarás ceadaithe go bhfuil feidhmíocht chomhshaoil feithicle cineálcheadaithe marthanach: