Document ID: chunk:federal_register_of_legislation:F2023L00129:front:0:p37
Version: federal_register_of_legislation:F2023L00129
Segment Type: other
Provision Reference: 
Character Range: 101249–105022

and the emission calculations provided in paragraph 8. of Annex 4 shall apply.

              5.3. Emission limits

              Table 1 provides the emissions limits that apply to this Regulation.

       Table 1
       Emission limits
                                                                                                                        Limit values
CO                                                                                                                      THC           NMHC      CH4       NOX*      NH3    PM mass   PM number
(mg/kWh)                                                                                                                (mg/kWh)      (mg/kWh)  (mg/kWh)  (mg/kWh)  (ppm)  (mg/kWh)  (#/kWh)
WHSC (CI)                                                                                                               1,500         130                           400    10        10         8.0 x 1011
WHTC (CI)                                                                                                               4,000         160                           460    10        10         6.0 x 1011**
WHTC (PI)                                                                                                               4,000                   160       500       460    10        10         6.0 x 1011**
    Notes:
   PI Positive Ignition
   CI Compression Ignition
   * The admissible level of NO2 component in the NOX limit value may be defined at a later stage.
   ** The limit shall apply as from the dates set out in row B of Table 1 in Appendix 9 to Annex 1 to this Regulation.

5.4.  Durability and deterioration factors
              The manufacturer shall determine deterioration factors that will be used to demonstrate that the gaseous and particulate emissions of an engine family or engine- after-treatment system family remain in conformity with the emission limits set out in paragraph 5.3. over the normal useful life periods set out below.

              The procedures for demonstrating the compliance of an engine system or engine-after-treatment system family over the normal useful life are set out in Annex 7.

              The mileage and period of time by reference to which the tests for durability of pollution control devices undertaken for type approval and testing of conformity of in-service vehicles or engines are to be carried out shall be the following:

                  (a)  160,000 km or five years, whichever is the sooner, in the case of engines fitted to vehicles of category M1, N1 and M2;

                  (b)  300,000 km or six years, whichever is the sooner, in the case of engines fitted to vehicles of category N2, N3 with a maximum technically permissible mass not exceeding 16 tonnes and M3 Class I, Class II and Class A, and Class B with a maximum technically permissible mass not exceeding 7.5 tonnes;

                  (c)  700,000 km or seven years, whichever is the sooner, in the case of engines fitted to vehicles of category N3 with a maximum technically permissible mass exceeding 16 tonnes and M3, Class III and Class B with a maximum technically permissible mass exceeding 7.5 tonnes.

5.5. Requirements to ensure correct operation of NOx control measures
              5.5.1. When applying for type approval, manufacturers shall present to the Type Approval Authority information showing that the NOx system retains its emission control function during all conditions regularly pertaining in the region (e.g. European Union), especially at low temperatures.

              In addition, manufacturers shall provide the Type Approval Authority with information on the operating strategy of any exhaust gas recirculation system (EGR), including its