Article 3
1. Member States shall bring into force the laws, regulations and administrative provisions necessary to comply with this Directive by 16 February 2020. They shall immediately inform the Commission thereof. When Member States adopt those measures, they shall contain a reference to this Directive or 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. Member States shall communicate to the Commission the text of the main measures of national law which they adopt in the field covered by this Directive. 3. Member States may entrust social partners with the implementation of this Directive where social partners jointly request to do so and provided that the Member States take all the necessary steps to ensure that they can at all times guarantee the results sought under this Directive.