1. The supervision, monitoring and methods of impact assessment shall be based on the submission of annual reports by the Member States on implementation of the actions taken pursuant to this Regulation and to the measures referred to in Article 3.
2. The Commission shall periodically review the application of this Regulation and of the measures referred to in Article 3, and shall report to the European Parliament and to the Council, on the first occasion by 20 April 2007, and every three years thereafter. For this purpose, the Commission may request from the Member States information additional to the information contained in the reports submitted by them in accordance with paragraph 1.
3. For the purposes of drafting the reports referred to in paragraph 2, the Commission shall request the opinion of the Committee.
4. The reports shall contain an evaluation of the results achieved by the actions taken pursuant to this Regulation including appropriate information about developments in the sector, in particular concerning economic, social, employment and technological aspects, as well as about quality of service, in the light of the original objectives and with a view to future needs.