Document ID: chunk:federal_register_of_legislation:F2023L00129:reg:10:p32
Version: federal_register_of_legislation:F2023L00129
Segment Type: reg
Provision Reference: reg 10 (pt 32/150)
Character Range: 803896–807144

that group g of monitors on board a particular vehicle.

              6.2. Minimum in-use performance ratio

              6.2.1. The in-use performance ratio IUPRm of a monitor m of the OBD system as defined in paragraph 5. of Annex 9C, shall be greater than or equal to the minimum in-use-performance ratio IUPRm(min) applicable to the monitor m throughout the useful life of the engine as specified in paragraph 5.4. of this Regulation.

              6.2.2. The value of minimum in-use-performance ratio IUPR(min) is 0.1 for all monitors.

              6.2.3. The requirement of paragraph 6.2.1. is deemed to be fulfilled if for all groups of monitors g the following conditions are met:

              6.2.3.1. The average value  of the values IUPRg of all vehicles equipped with engines belonging to the OBD engine family under consideration is equal to or above IUPR(min), and

              6.2.3.2. More than 50 per cent of all engines considered in paragraph 6.2.3.1. have an IUPRg equal to or above IUPR(min).

              6.3. Documentation requirements

              6.3.1. The documentation associated with each monitored component or system and required by paragraph 8. of Annex 9B shall include the following information concerning in-use performance data:

              a) The criteria used for incrementing the numerator and the denominator;

                  b) Any criterion for disabling incrementation of the numerator or of the denominator.

              6.3.1.1. Any criterion for disabling incrementation of the general denominator shall be added to the documentation referred to in paragraph 6.3.1.

              6.4. Statement of OBD in-use Performance compliance

              6.4.1. In the application for type approval, the manufacturer shall provide a statement of OBD in-use Performance compliance in accordance with the model set out in Appendix 2 to this annex. In addition to this statement, compliance with the requirements of paragraph 6.1. shall be verified through the additional assessment rules specified in paragraph 6.5.

              6.4.2. This statement referred to in paragraph 6.4.1. shall be attached to the documentation related to the OBD engine-family required by paragraphs 5. and 6.3. of this annex.

              6.4.3. The manufacturer shall maintain records which contain all test data, engineering and manufacturing analyses, and other information which provides the basis for the OBD in-use performance compliance statement. The manufacturer shall make such information available to the Type Approval Authority upon request.

               6.4.4. During the phase-in period set out in paragraph 4.10.7. of this Regulation, the manufacturer shall be exempted from providing the statement required by paragraph 6.4.1.

              6.5. Assessment of the in-use performance

              6.5.1. The OBD in-use performance and compliance with paragraph 6.2.3. of this annex shall be demonstrated at least according to the procedure set out in Appendix 1 to this annex.

              6.5.2. National authorities and their delegates may pursue further tests to verify compliance with paragraph 6.2.3. of this annex.

              6.5.2.1. To demonstrate non-compliance with the