Recital 10

Directive 2005/55/EC of the European Parliament and of the Council of 28 September 2005 on the approximation of the laws of the Member States relating to the measures to be taken against the emission of gaseous and particulate pollutants from compression-ignition engines for use in vehicles, and the emission of gaseous pollutants from positive-ignition engines fuelled with natural gas or liquefied petroleum gas for use in vehicles (Text with EEA relevance) · European Union

(10) New provisions for on-board diagnostics (OBD) should be introduced from 2005 with a view to facilitating the immediate detection of the deterioration or failure of engine emission control equipment. This should enhance diagnostic and repair capability, significantly improving the sustainable emission performance of in-service heavy-duty vehicles. Since, on the worldwide stage, OBD for heavy-duty diesel engines is in its infancy, it should be introduced in the Community in two stages to allow for system development so that the OBD system does not give false indications. In order to assist the Member States in ensuring that the owners and operators of heavy-duty vehicles meet their obligation to repair faults indicated by the OBD system, the distance covered or the time that has elapsed after a fault has been indicated to the driver should be recorded.

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Source: EUR-Lex (Cellar) · retrieved 2026-11-01 · Text as adopted (Official Journal); later amendments are not incorporated in this text.