Document ID: chunk:federal_register_of_legislation:F2023L00129:reg:10:p30
Version: federal_register_of_legislation:F2023L00129
Segment Type: reg
Provision Reference: reg 10 (pt 30/150)
Character Range: 797838–801064

No. 154.

              2.4.1.5.2. The equivalences set out in paragraph 2.4.1. shall apply in the following manner:

              2.4.1.5.2.1. The OTL's and dates referred to in Table 1 of Annex 3 to this Regulation and relevant to the assigned character for which the type-approval is sought shall apply;

              2.4.1.5.2.2. The requirements on NOx control measures described in paragraphs 2.1.2.2.1. to 2.1.2.2.4. of Annex 11 shall apply.

              2.4.2. As an alternative to the requirements set out in paragraph 4. of Annex 9B and those described in this annex, engine manufacturers whose world-wide annual production of engines within an engine type subject to this Regulation is less than 500 engines per year, may obtain type approval on the basis of the requirements of this Regulation when the emission control components of the engine-system are at least monitored for circuit continuity, and for rationality and plausibility of sensor outputs, and when the after-treatment system is at least monitored for total functional failure. Engine manufacturers whose world-wide annual production of engines within an engine type subject to this Regulation is less than 50 engines per year, may obtain type approval on the basis of the requirements of this Regulation when the emission control components of the engine system are at least monitored for circuit continuity, and for rationality and plausibility of sensor outputs ("component monitoring").

              A manufacturer shall not be permitted to use the alternative provisions specified in this paragraph for more than 500 engines per year.

              2.4.3. The Type Approval Authority shall inform the other Contracting Parties of the circumstances of each type approval granted under paragraph 2.4.1. and paragraph 2.4.2.

              2.5. Conformity of production

              The OBD system is subject to the requirements for conformity of production specified in paragraph 8.4. of this Regulation.

              If the Type Approval Authority decides that verification of the conformity of production of the OBD system is required, the verification shall be conducted in accordance with the requirements specified in paragraph 8.4. of this Regulation.

              3. Performance requirements
              3.1. The performance requirements shall be those set out in paragraph 5. of Annex 9B.

              3.2. OBD threshold limits

              3.2.1. The OBD threshold limits (hereinafter OTLs) applicable to the OBD system are those specified in the rows "general requirements" of Table 1 for compression ignition engines and of Table 2 for gas-fuelled engines and positive ignition engines.

              3.2.2. Until the end of the phase-in period set out in paragraph 4.10.7. of this Regulation, the OBD threshold limits specified in rows "phase-in period" of Table 1 for compression ignition engines and of Table 2 for gas fuelled engines and positive ignition engines.

       Table 1
       OTLs (Compression ignition engines)
                      Limit in mg/kWh
                      NOx               PM Mass
Phase-in period       1,500             25
General requirements  1,200             25

       Table