2.

National rules for implementing the essential requirements and, where relevant, acceptable national means of compliance, shall apply in the following cases: where the TSIs do not cover, or do not fully cover, certain aspects corresponding to the essential requirements, including open points as referred to in Article 4(6); where non-application of one or more TSIs or parts of them has been notified under Article 7; where a specific case requires the application of technical rules not included in the relevant TSI; national rules used to specify existing systems, limited to the aim of assessing technical compatibility of the vehicle with the network; networks and vehicles not covered by TSIs; as an urgent temporary preventive measure, in particular following an accident.

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Source: EUR-Lex (Cellar) · retrieved 2026-10-12 · Text as adopted (Official Journal); later amendments are not incorporated in this text.