Document ID: chunk:federal_register_of_legislation:F2023L00129:reg:10:p64
Version: federal_register_of_legislation:F2023L00129
Segment Type: reg
Provision Reference: reg 10 (pt 64/150)
Character Range: 891811–894721

6.3.2.2. Qualification of deteriorated components used to demonstrate the detection of Class B2 malfunctions
 In the case of Class B2 malfunctions, and upon request of the Type Approval Authority, the manufacturer shall demonstrate by an emission test according to paragraph 7. that the deteriorated component or device does not lead the relevant emission to exceed its applicable OTL.
6.3.2.3. Qualification of deteriorated components used to demonstrate the detection of Class C malfunctions
 In the case of Class C malfunctions, and upon request of the Type Approval Authority, the manufacturer shall demonstrate by an emission test according to paragraph 7. that the deteriorated component or device does not lead the relevant emission to exceed its applicable regulated emission limit.
6.3.3. Test report
 The test report shall contain, at a minimum, the information set out in Appendix 4 to this annex.
6.4. Approval of an OBD system containing deficiencies
6.4.1. Approval authorities may approve upon request of a manufacturer an OBD system even though the system contains one or more deficiencies.
 In considering the request, the Type Approval Authority shall determine whether compliance with the requirements of this annex is feasible or unreasonable.
 The Type Approval Authority shall take into consideration data from the manufacturer that details such factors as, but not limited to, technical feasibility, lead time and production cycles including phase-in or phase-out of engines designs and programmed upgrades of computers, the extent to which the resultant OBD system will be effective in complying with the requirements of this annex and that the manufacturer has demonstrated an acceptable level of effort toward meeting the requirements of the annex.
 The Type Approval Authority will not accept any deficiency request that includes the complete lack of a required diagnostic monitor (i.e. a complete lack of the monitors required in Appendix 3 to this annex).
6.4.2. Deficiency period
 A deficiency is granted for a period of one year after the date of approval of the engine system.
 If the manufacturer can adequately demonstrate to the Type Approval Authority that substantial engine modifications and additional lead time would be necessary to correct the deficiency, then this deficiency can be granted again for an additional one year, provided that the total deficiency period does not exceed three years (i.e. three times one year deficiency allowance is permitted).
 The manufacturer cannot apply for a renewal of the deficiency period.
6.5. Procedure for selecting the reference fuel in case of a gas engine
 Demonstration of the OBD performance and malfunction classification shall be performed by using one of the reference fuels mentioned in Annex 5 on which the engine is designed to operate.
 The selection of this reference fuel is done by the Type Approval Authority ,