Article 3
The TSI shall apply to all new freight wagon rolling stock of the European Union’s rail system, taking into account Section 7 of the Annex. The TSI set out in the Annex shall also apply to existing freight wagon rolling stock: (a) when it is renewed or upgraded in accordance with Article 20 of Directive 2008/57/EC; or (b) with regard to specific provisions, such as the traceability of axles in point 4.2.3.6.4 and the maintenance plan in point 4.5.3. The detailed technical scope of this Regulation is set out in Chapter 2 of the Annex.