The Regulation creates a system of co-operation between Central Authorities of the member states. These authorities are obliged to facilitate communications between the courts of the relevant countries and must facilitate agreements between parents through mediation or other means.
Each Member State shall designate at least one central authority to assist with the application of the Regulation. There is a Central Authority in each country to facilitate the return of abducted children.
Per Article 53 Designation : “Each Member State shall designate one or more central authorities to assist with the application of this Regulation and shall specify the geographical or functional jurisdiction of each. Where a Member State has designated more than one central authority, communications shall normally be sent direct to the relevant central authority with jurisdiction. Where a communication is sent to a central authority without jurisdiction, the latter shall be responsible for forwarding it to the central authority with jurisdiction and informing the sender accordingly.”
https://www.gov.uk/government/organisations#foreign-commonwealth-office