Division 7.1.2 Rolling stock being upgraded

In respect of rolling stock already in operation, this TSI applies to existing high-speed trains or conventional rolling stock to be upgraded under the conditions specified in Article 3 of this Decision. In this particular context, it relates fundamentally to the application of a migration strategy that enables an economically justifiable adaptation of existing installations to be made taking into account the principle of grandfather rights.

In the majority of cases, the application of this TSI on existing rolling stock will demand important modifications, which will mainly be undertaken at the time that the trainsets undergo major refurbishment or overhauls.