Member States shall bring into force the laws, regulations and administrative provisions necessary to comply with this Directive by 10 September 2017. They shall immediately inform the Commission thereof.

When Member States adopt those 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 reference shall be laid down by Member States.

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. On that occasion, Member States shall inform the Commission of their national targets set in accordance with point (e) of Article 3(4) of Directive 2009/28/EC and, where appropriate, of a differentiation of their national target as compared to the reference value referred to therein, and the grounds therefor.

In 2020, Member States shall report to the Commission on their respective achievements towards their national targets set in accordance with point (e) of Article 3(4) of Directive 2009/28/EC, specifying the reasons for any shortfall.