Recital 44

(44)Since the objectives of this Regulation, namely to lay down common technical requirements and administrative provisions for the emission type-approval and market surveillance of vehicles of categories M and N, and of systems, components and separate technical units intended for such vehicles, with respect to their emissions, as well as to pursue a high level of environmental and health protection, cannot be sufficiently achieved by the Member States, but can rather, by reason of its scale and effects, be better achieved at Union level, the Union may adopt measures in accordance with the principle of subsidiarity as set out in Article 5 of the Treaty on European Union. In accordance with the principle of proportionality, as set out in that Article, this Regulation does not go beyond what is necessary in order to achieve those objectives,