The reduction efficiency shall be determined by comparison of the emissions measured over the weighted WHTC for REC to be applied to heavy-duty engines or over the weighted NRTC for REC to be applied to non-road mobile machinery or agricultural and forestry tractor engines.
Pour un DAM de la classe IIB, l'accroissement incrémental de NO2 ne doit pas être de plus de 30 points de pourcentage.