Article 8

Member States shall ensure that the functionality of the legacy Class B systems referred to in Annex B of the TSI as well as their interfaces are kept as currently specified excluding those modifications that might be deemed necessary in order to mitigate safety-related flaws of these systems.

Member States shall make available such information regarding their legacy systems as is required for purposes of development and safety-certification of apparatus allowing interoperability of Class A equipment as defined in Annex A of the TSI with their legacy Class B facilities.