A notification procedure for data intermediation services should be established in order to ensure that data governance within the Union is based on trustworthy exchange of data. The benefits of a trustworthy environment would be best achieved by imposing a number of requirements for the provision of data intermediation services, but without requiring any explicit decision or administrative act by the competent authority for data intermediation services for the provision of such services. The notification procedure should not impose undue obstacles for SMEs, start-ups and civil society organisations and should comply with the principle of non-discrimination.