Given the cross-border nature of the services at stake and the horizontal range of obligations introduced by this Regulation, one authority appointed with the task of supervising the application and, where necessary, enforcing this Regulation should be identified as a Digital Services Coordinator in each Member State. Where more than one competent authority is appointed to supervise the application of, and enforce, this Regulation, only one authority in that Member State should be designated as a Digital Services Coordinator. The Digital Services Coordinator should act as the single contact point with regard to all matters related to the application of this Regulation for the Commission, the Board, the Digital Services Coordinators of other Member States, as well as for other competent authorities of the Member State in question. In particular, where several competent authorities are entrusted with tasks under this Regulation in a given Member State, the Digital Services Coordinator should coordinate and cooperate with those authorities in accordance with the national law setting their respective tasks and without prejudice to the independent assessment of the other competent authorities. While not entailing any hierarchical supraordination over other competent authorities in the exercise of their tasks, the Digital Services Coordinator should ensure effective involvement of all relevant competent authorities and should timely report their assessment in the context of cooperation on supervision and enforcement at Union level. Moreover, in addition to the specific mechanisms provided for in this Regulation as regards cooperation at Union level, Member State should also ensure cooperation among the Digital Services Coordinator and other competent authorities designated at national level, where applicable, through appropriate tools, such as by pooling of resources, joint task forces, joint investigations and mutual assistance mechanisms.