(4)Directive 2003/71/EC requires the Commission to make an assessment of the application of that Directive 5 years after the date of its entry into force and to present, where appropriate, proposals for its review. That assessment has revealed that certain elements of Directive 2003/71/EC should be amended in order to simplify and improve its application, increase its efficiency and enhance the international competitiveness of the Union, thereby contributing to the reduction of administrative burdens.