Document ID: chunk:federal_register_of_legislation:F2023L00129:reg:10:p40
Version: federal_register_of_legislation:F2023L00129
Segment Type: reg
Provision Reference: reg 10 (pt 40/150)
Character Range: 826565–829461

belonging to an emission-OBD family that has already been certified.
4.1.2. Extension / Modification of an existing certificate
4.1.2.1. Extension to include a new engine system into an emission-OBD family
 At the request of the manufacturer and upon approval of the Type Approval Authority, a new engine system may be included as a member of a certified emission-OBD family if all the engine systems within the so-extended emission-OBD family still have common methods of monitoring / diagnosing emission-related malfunctions.
 If all OBD elements of design of the OBD-parent engine system are representative of those of the new engine system, then the OBD-parent engine system shall remain unchanged and the manufacturer shall modify the documentation package according to paragraph 8. of this annex.
 If the new engine system contains elements of design that are not represented by the OBD-parent engine system but itself would represent the whole family, then the new engine system shall become the new OBD-parent engine
system. In this case the new OBD elements of design shall be demonstrated to comply with the provisions of this annex, and the documentation package shall be modified according to paragraph 8. of this annex.
4.1.2.2. Extension to address a design change that affects the OBD system
 At the request of the manufacturer and upon approval of the Type Approval Authority, an extension of an existing certificate may be granted in the case of a design change of the OBD system if the manufacturer demonstrates that the design changes comply with the provisions of this annex.
 The documentation package shall be modified according to paragraph 8. of this annex.
If the existing certificate applies to an emission-OBD family, the manufacturer shall justify to the Type Approval Authority that the methods of monitoring/diagnosing emission-related malfunctions are still common within the family and that the OBD-parent engine system remains representative of the family.
4.1.2.3. Certificate modification to address a malfunction reclassification
 This paragraph applies when, following a request by the authority that granted the approval, or at its own initiative, the manufacturer applies for a modification of an existing certificate in order to reclassify one or several malfunctions.
 The compliance of the new classification shall then be demonstrated according to the provisions of this annex and the documentation package shall be modified according to paragraph 8. of this annex.
4.2. Monitoring requirements
 All emission-related components and systems included in an engine system shall be monitored by the OBD system in accordance with the requirements set in Appendix 3 and, in the case of dual-fuel engines or vehicles in section 7. of Annex 15. However, the OBD system is not required to use a unique monitor to detect each malfunction referred to in Appendix 3