Article 43 2.

Subject to the conclusion of an agreement to that effect between the Union and third countries as referred to in paragraph 1, ACER may also exercise its tasks under Articles 3 to 13 with regard to third countries, provided that those third countries have adopted and apply the relevant rules in accordance with paragraph 1 and have mandated ACER to coordinate the activities of their regulatory authorities with those of the regulatory authorities of Member States. Only in such cases the references to issues of cross-border character shall relate to borders between the Union and third countries, and not to borders between two Member States.