Article 21
Transposition into national law 1. Member States shall bring into force the laws, regulations and administrative provisions necessary to comply with this Directive no later than 30 November 2004 with the exception of Article 3(2)(a) where the transposition of this Directive into national law shall take place no later than 30 May 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 a reference on the occasion of their official publication. The methods of making such a reference shall be laid down by Member States. 2. Member States shall communicate to the Commission the text of the main provisions of national law which they adopt in the field covered by this Directive.