15.12.2012 Official Journal of the European Union L 347/1 II (Non-legislative acts) REGULATIONS COMMISSION IMPLEMENTING REGULATION (EU) No 1203/2012 of 14 December 2012 on the separate sale of regulated retail roaming services within the Union (Text with EEA relevance) THE EUROPEAN COMMISSION, Having regard to the Treaty on the Functioning of the European Union, of implementing acts, detailed rules on the information obligations about the possibility for roaming customers to opt for an alternative roaming provider and on a technical solution for the implementation of the separate sale of regulated retail roaming services. 3)  In accordance with Article 5(4) of Regulation (EU) No Having regard to Regulation (EU) No 531/2012 of the 531/2012, the technical solution to implement the European Parliament and of the Council of 13 June 2012 on separate sale of regulated retail roaming services may roaming on public mobile communications networks within the combine one or more technical modalities for the Union (!), and in particular Article 5(2) thereof, purposes of meeting all the criteria set out in Article 5(3) of Regulation (EU) No 531/2012. Several technical modalities should therefore need to be implemented, if not all of these criteria can be met by only one technical After consulting the Body of European Regulators for Electronic modality. This Regulation should lay down detailed rules Communications, on this technical solution comprising the requirements for domestic providers to deploy network elements and to provide related services concerning each technical modality, in order to ensure access to these facilities Whereas: necessary to allow alternative roaming providers to offer separate roaming services and to provide for the switching process between donor and recipient roaming providers. (1) Regulation (EU) No 531/2012 introduces the concept of separate sale of regulated retail roaming services. Firstly, Article 4(1) of Regulation (EU) No 531/2012 imposes an obligation on domestic providers to enable their 4) At the same time, the technical solution should make it customers to access regulated voice, SMS and data possible to give effect to the obligations referred to in roaming services, provided as a bundle, by any alternative Article 4(1) of Regulation (EU) No 531/2012. Therefore roaming provider. Furthermore, the provisions on the technical solution should ensure both the possibility separate sale of regulated retail roaming services as laid for customers to access regulated voice, SMS and data down in Article 4(1) include the requirement for roaming services, provided as a bundle by any alternative domestic providers and roaming providers not to roaming provider and that domestic providers and prevent roaming customers from accessing regulated roaming providers comply with the obligation not to data roaming services provided directly on a visited prevent customers from accessing regulated data network by an alternative roaming provider. roaming services provided directly on a visited network by an alternative roaming provider. (20 In order to ensure consistent and simultaneous imple- mentation across the Union of the separate sale of (5)  Currently all retail roaming services are provided together regulated retail roaming services, Regulation (EU) No 531/2012 requires the Commission to adopt, by means () O] L 172, 30.6.2012, p. 10. with domestic mobile communication services by the domestic provider. Regulation (EU) No 531/2012 enables the roaming customer to select an alternative roaming provider for regulated roaming services