Article 18

Member States shall bring into force the laws, regulations and administrative provisions necessary to comply with this Directive in good time so that the measures provided for by this Directive may be put into effect not later than 1 January 1993. They shall forthwith inform the Commission and the other Member States of the measures taken.

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 a reference shall be laid down by the Member States.