Member States shall ensure that the competent authorities designated pursuant to Article 18(2) cooperate closely with the competent authorities performing the general supervision of credit institutions in accordance with relevant Union law applicable to those institutions and with the resolution authority in the event of the resolution of a credit institution issuing covered bonds.

Member States shall further ensure that the competent authorities designated pursuant to Article 18(2) cooperate closely with each other. That cooperation shall include providing one another with any information which is relevant for the exercise of the other authorities’ supervisory tasks under the provisions of national law transposing this Directive.

For the purposes of the second sentence of paragraph 2 of this Article, Member States shall ensure that the competent authorities designated pursuant to Article 18(2) communicate:

Member States shall also ensure that the competent authorities designated pursuant to Article 18(2) cooperate with EBA or, where relevant, with the European Supervisory Authority (European Securities and Markets Authority), established by Regulation (EU) No 1095/2010 of the European Parliament and of the Council ( 1 ), for the purposes of this Directive.

For the purposes of this Article, information shall be regarded as essential if it could materially influence the assessment of the issue of covered bonds in another Member State.