Document ID: chunk:federal_register_of_legislation:F2023C00229:reg:5:p34
Version: federal_register_of_legislation:F2023C00229
Segment Type: reg
Provision Reference: reg 5 (pt 34/36)
Character Range: 515394–518255

VI to this Directive. In applying Appendices 1, 2 or 3, the measured emission of the gaseous and particulate pollutants from engines subject to checking for con- formity of production shall be adjusted by application of the appropriate deterioration factors (DF's) for that engine as recorded in sec- tion 1.5 of the Appendix to Annex VI.

         Sections 2.4.2 and 2.4.3 of Annex X to Directive 70/156/EEC are applicable where the competent authorities are not satisfied with the auditing procedure of the manufacturer.'

     (r)      The following section 9.1.2 is added: '9.1.2. On-Board Diagnostics (OBD)
         9.1.2.1.    If a verification of the conformity of production of the OBD system is to be carried out, it must be conducted in accordance with the following:

         9.1.2.2.    When the approval authority determines that the quality of production seems unsatisfactory an engine is randomly taken from the series and subjected to the tests described in Appendix 1 to Annex IV to Directive 2005/78/EC. The tests may be carried out on an engine that has been run-in up to a maximum of 100 hours.

         9.1.2.3.    The production is deemed to conform if this engine meets the requirements of the tests described in Appendix 1 to Annex IV to Direc- tive 2005/78/EC.

         9.1.2.4.    9.1.2.4 If the engine taken from the series does not satisfy the requirements of section 9.1.2.2, a further random sample of four engines must be taken from the series and subjected to the tests described in Appendix 1 to Annex IV to Directive 2005/78/EC. The tests may be carried out on engines that have been run-in up to a maximum of 100 hours.

         9.1.2.5.    9.1.2.5. The production is deemed to conform if at least three engines out of the further random sample of four engines meet the requirements of the tests described in Appendix 1 to Annex IV to Directive 2005/78/EC.'

     (s)     The following section 10 is added:

'10.  CONFORMITY OF IN-SERVICE VEHICLES/ENGINES

         10.1 For the purpose of this Directive, the conformity of in-service vehicles/engines must be checked periodically over the useful life period of an engine installed in a vehicle.

         10.2. With reference to type-approvals granted for emissions, additional measures are appropriate for confirming the functionality of the emis- sion control devices during the useful life of an engine installed in a vehicle under normal conditions of use.

         10.3. The procedures to be followed regarding the conformity of in-service vehicles/engines are given in Annex III to Directive 2005/78/EC.'

     (t)      Appendix 1, section 3 is replaced by the following:

'3. The following procedure is used for each of the pollutants given in section 6.2.1 of Annex I (see Figure 2):

Let:

L = the natural logarithm of the limit value for the pollutant
xi = the