(94)Since the objective of this Directive, namely to ensure a high level of investor protection by laying down a common framework for the authorisation and supervision of AIFMs, cannot be sufficiently achieved by the Member States, as evidenced by the deficiencies of existing nationally based regulation and oversight of those actors, and can therefore 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 Directive does not go beyond what is necessary in order to achieve that objective.