Document ID: chunk:federal_register_of_legislation:F2023L00129:front:0:p40
Version: federal_register_of_legislation:F2023L00129
Segment Type: other
Provision Reference: 
Character Range: 110109–113081

the parent engine system according to paragraph 7.2. or, in the case of dual-fuel engines, to paragraph 3.1.2. of Annex 15, but itself would represent the whole family according to these paragraphs, then the new engine system shall become the new parent engine.  In this case the new elements of design shall be demonstrated to comply with the provisions of this Regulation and the information document specified in Annex 1 shall be modified.
7.4.  Parameters for defining an OBD-engine family
 The OBD-engine family shall be determined by basic design parameters that shall be common to engine systems within the family, in accordance with paragraph 6.1. of Annex 9B.
  8.  Conformity of production
8.1. Every engine or vehicle bearing an approval mark as prescribed under this Regulation shall be so manufactured as to conform, with regard to the description as given in the approval form and its annexes, to the approved type. The conformity of production procedures shall comply with those set out in Appendix 2 to the 1958 Agreement (E/ECE/324//E/ECE/TRANS/505/Rev.2), with the following requirements set out in paragraphs 8.2. to 8.5.
8.1.1. Conformity of production shall be checked on the basis of the description in the type approval certificates set out in Annexes 2A, 2B and 2C, as applicable.
8.1.2. Conformity of production shall be assessed in accordance with the specific conditions laid down in this paragraph and the relevant statistical methods laid down in Appendices 1, 2 and 3.
8.2. General requirements
              8.2.1. In applying Appendices 1, 2 or 3, the measured emission of the gaseous and particulate pollutants from engines subject to checking for conformity of production shall be adjusted by application of the appropriate deterioration factors (DF's) for that engine as recorded in the Addendum to the type approval certificate granted in accordance with this Regulation.

              8.2.2. The provisions set out in Appendix 2 to the 1958 Agreement (E/ECE/324//E/ECE/TRANS/505/Rev.2) shall be applicable where the approval authorities are not satisfied with the auditing procedure of the manufacturer.

              8.2.3. All engines subject to tests shall be randomly taken from the series production.

              8.3. Emissions of pollutants

              8.3.1. If emissions of pollutants are to be measured and an engine type approval has had one or more extensions, the tests shall be carried out on the engines described in the information package relating to the relevant extension.

              8.3.2. Conformity of the engine subjected to a pollutant test:

              After submission of the engine to the authorities, the manufacturer may not carry out any adjustment to the engines selected.

              8.3.2.1. Three engines shall be taken from the series production of the engines under consideration. Engines shall be subjected to testing on the WHTC and on the WHSC, if applicable, for the checking of