In view of the above-mentioned arguments, the Commission considers that although a DOC and a DPF belong, together with the other components (for instance, Lean NOx Trap, the purpose of which is to reduce the NOx in the exhaust gas) to a diesel passenger car’s or light duty truck’s after-treatment/diesel emission control system, the mere fact that they exist next to each other in the same exhaust line or influence each other’s development does not make them substitutes from the demand side and/or supply side viewpoint, as these are two separate components with different characteristics, prices and intended use. Moreover, as regards substitutability on the supply side, there are differences in the production ...[+++] processes of the DOC and DPF substrates, leading to the conclusion that there is no substitutability between DOC substrates and DPF substrates on the supply side.

They will eliminate the particle filter under the vehicles, and they will eliminate also the selective catalytic reduction, SCR, which is ammonia that they put back into the exhaust pipe to clean the residue into the vehicles.