1.Member States shall adopt and publish, by 31 December 2019, the laws, regulations and administrative provisions necessary to comply with this Directive. They shall forthwith communicate to the Commission the text of those provisions.
They shall apply those provisions from 1 January 2020.
When Member States adopt those provisions, they shall contain a reference to this Directive or be accompanied by such a reference on the occasion of their official publication. Member States shall determine how such reference is to be made.
2.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.
3.By way of derogation from paragraph 1, Member States shall, by 31 December 2021, adopt and publish the laws, regulations and administrative provisions necessary to comply with Article 9a of Directive (EU) 2016/1164. They shall communicate to the Commission the text of those provisions without delay.
They shall apply those provisions from 1 January 2022.
When Member States adopt those provisions, they shall contain a reference to this Directive or be accompanied by such a reference on the occasion of their official publication. Member States shall determine how such reference is to be made.