Article 55 — Facilitation of the cross-certification process

1. Member States shall adopt a list of national certification authorities for defence purposes and notify it to the Commission, which shall make it available to Member States. 2. The Commission, taking into account the views of the EDA, shall draw up and keep updated, by means of implementing acts, an official list of national certification authorities for defence purposes as identified by Member States. Those implementing acts shall be adopted in accordance with the examination procedure referred to in Article 77(4). 3. A certification authority of one Member State may request from the certification authority of another Member State information about the scope of the certification of a certain defence product. 4. The national certification authorities referred to in paragraph 1 shall cooperate with each other in the performance of their tasks under this Regulation and shall give the authorities of other Member States all necessary support to that end. The Commission, inviting, where relevant, the EDA to provide its expertise, shall support such cooperation in order to facilitate an efficient and effective movement of defence products in the internal market.