Member States shall take the necessary measures to comply with this Directive not later than 5 September 2006. They shall forthwith inform the Commission thereof.

When Member States adopt these measures, they shall contain a reference to this Directive or shall be accompanied by such reference on the occasion of their official publication. The methods of making such reference shall be laid down by Member States.

Member States shall communicate the main provisions of national law which they adopt in the field covered by this Directive to the Commission.