Member States shall bring into force the laws, regulations and administrative provisions necessary to comply with this Directive before 11 August 2004. They shall forthwith inform the Commission thereof.
Member States shall provide that the provisions referred to in the first subparagraph shall first apply to the supervision of accounts for the financial year beginning on 1 January 2005 or during that calendar year.
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.