1. Member States shall take the necessary measures to comply with this Directive by 20 January 2007. 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.

2. Where Member States adopt measures pursuant to Article 3(1), 8(2) or 8(3) or Article 30, they shall immediately communicate those measures to the Commission and to the other Member States.