3.

The work programme shall consist of the following stages: designation of the joint representative body; development on the basis of a draft established by the joint representative body of a representative architecture of the conventional rail system, based on the list of subsystems (Annex II), to guarantee consistency between TSIs. This architecture must include in particular the different constituents of this system and their interfaces and act as a reference framework for defining the areas of use of each TSI; adoption of a model structure for developing TSIs; adoption of a method of cost-benefit analysis of the solutions set out in the TSIs; adoption of the mandates needed to draw up the TSIs; adoption of the basic parameters for each TSI; approval of draft standardisation programmes; management of the transition period between the date of entry into force of this Directive and publication of the TSIs, including the adoption of the reference system mentioned in Article 25.

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Source: EUR-Lex (Cellar) · retrieved 2026-10-29 · Text as adopted (Official Journal); later amendments are not incorporated in this text.