Member States shall adopt and publish the laws, regulations and administrative provisions necessary to comply with this Directive no later than 3 July 2001. They shall forthwith inform the Commission thereof.

Member States shall apply these measures with effect from 3 January 2002. However, Member States shall allow the manufacturer, or his authorised representative established in the Community, to avail himself of the provisions of this Directive as from 3 July 2001.

With regard to the reduced permissible sound power levels of stage II referred to in Article 12, these provisions shall apply with effect from 3 January 2006.

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 to the Commission the texts of the provisions of national law which they adopt in the field governed by this Directive.