Article 19 Subsequent changes relevant for the certification of CO2 emissions and fuel consumption related properties of components, separate technical units and systems

The manufacturer shall notify the approval authority of any changes to the design or the manufacturing process of components, separate technical units or systems concerned which occur after the certification of the values relating to the CO₂ emissions and fuel consumption related properties of the relevant component family, separate technical unit family or system family pursuant to F1Article 12(8) or Article 17 and which may have a non-negligible effect on the CO₂ emissions and fuel consumption related properties of those components, separate technical units and systems.

Upon receipt of the notification referred to in paragraph 1, the approval authority shall inform the manufacturer whether or not the components, separate technical units or systems affected by the changes continue to be covered by the certificate issued, or whether additional testing in accordance with Article 14 is necessary in order to verify the impact of the changes on the CO₂ emissions and fuel consumption related properties of the components, separate technical units or systems concerned.

Where the components, separate technical units or systems affected by the changes are not covered by the certificate, the manufacturer shall, within one month of receipt of that information from the approval authority, apply for a new certification or an extension pursuant to Article 18. If the manufacturer does not apply for a new certification or an extension within that deadline, or if the application is rejected, the certificate shall be withdrawn.