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1.At the request of the manufacturer and upon approval of the approval authority, a new component, separate technical unit or system may be included as a member of a certified component family, separate technical unit family or system family if they meet the criteria for family definition set out in:
Appendix 3 to Annex V as regards the family concept of engines;
Appendix 6 to Annex VI as regards the family concept of transmissions, torque converters, other torque transferring component and additional driveline components;
Appendix 4 to Annex VII as regards the family concept of axles;
Appendix 5 to Annex VIII as regards the family concept for the purposes of determining air drag.
In such cases, the approval authority shall issue a revised certificate denoted by an extension number.
The manufacturer shall modify the information document referred to in Article 16(2) and provide it to the approval authority.
2.Where the characteristics of the specific component, specific separate technical unit or specific system, in terms of CO2 emissions and fuel consumption related properties as determined in accordance with paragraph 1, lead to higher CO2 emissions and fuel consumption values than those of the parent component, parent separate technical unit or parent system, respectively, the new component, separate technical unit or system shall become the new parent component, separate technical unit or system.