[360] 23 (b) it was not reasonably possible for the operator to notify the CSIRT in accordance with paragraph (1) or (9), as the case may be. PART 5 DIGITAL SERVICES Definition 19. In this Part, “digital service” means a digital service set out in Schedule 2 which is normally provided for remuneration, at a distance, by electronic means and at the individual request of a recipient of services where— “at a distance” in relation to a digital service means that the service is provided without the party providing the service and the party receiving the service being simultaneously present, “by electronic means” in relation to a digital service means that the service is sent initially and received at its destination by means of electronic equipment for the processing (including digital compression) and storage of data, and entirely transmitted, conveyed and received by wire, by radio, by optical means or by other electromagnetic means, and “at the individual request of a recipient of services” in relation to a digital service means that the service is provided through the transmission of data on individual request. Relevant digital service provider 20. (1) A relevant digital service provider means a digital service provider who, in respect of a digital service— (a) provides the digital service in the Union, (b) has its main establishment in the State or has designated a representative in the State, and (c) is not a micro or small enterprise as defined in Commission Recommendation 2003/361/EC of 6 May 20036 concerning the definition of micro, small and medium-sized enterprises. (2) Where a relevant digital service provider is— (a) an undertaking which is subject to the requirements of Regulations 23 and 24 of the European Communities (Electronic Communications Network and Services) (Framework) Regulations 2011, or (b) a trust service provider subject to the requirements of Article 19 of Regulation (EU) No. 910/2014 of the European Parliament and of the Council of 23 July 20145, 6 O.J. No. L 124, 20.5.2003, p.36