Article 5
1. Member States shall bring into force the laws, regulations and administrative provisions necessary to comply with this Directive or shall ensure that management and labour have introduced the necessary measures by agreement, not later than 12 months after the date of entry into force of this Directive. 2. When Member States adopt provisions, 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. They shall forthwith communicate to the Commission the text of those provisions. 3. 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.