Document ID: chunk:federal_register_of_legislation:F2023L00129:front:0:p36
Version: federal_register_of_legislation:F2023L00129
Segment Type: other
Provision Reference: 
Character Range: 98673–101793

3.1.4. (b) and in paragraph 3.2.4. (a) of this Regulation.

5.1.4.4. The extended documentation package shall remain strictly confidential. It may be kept by the Type Approval Authority, or, at the discretion of the Type Approval Authority, may be retained by the manufacturer. In the case the manufacturer retains the documentation package, that package shall be identified and dated by the Type Approval Authority once reviewed and approved. It shall be made open for inspection by the Type Approval Authority at the time of approval or at any time during the validity of the approval.
5.1.5. Provisions for electronic system security
              5.1.5.1. The general requirements, including the specific requirements for electronic system security, shall be those set out in paragraph 4. of Annex 9B of this Regulation and those described in paragraph 2. of Annex 9A.

5.2.  Specifications concerning the emission of gaseous and particulate pollutants
5.2.1. In undertaking the tests set out in Annex 4 the gaseous and particulate matter emissions shall not exceed the amounts shown in Table 1.
              5.2.2. For positive ignition engines subject to the test set out in Annex 6, the maximum permissible carbon monoxide content in the exhaust gases at normal engine idling speed shall be that stated by the vehicle manufacturer. However, the maximum carbon monoxide content shall not exceed 0.3 per cent vol.

              At high idle speed, the carbon monoxide content by volume of the exhaust gases shall not exceed 0.2 per cent vol., with the engine speed being at least 2,000 min-1 and Lambda being 1 ± 0.03 or in accordance with the specifications of the manufacturer.

              5.2.3. In the case of a closed crankcase, manufacturers shall ensure that for the tests set out in paragraphs 6.10. and 6.11. of Annex 4, the engine's ventilation system does not permit the emission of any crankcase gases into the atmosphere. If the crankcase is of an open type, the emissions shall be measured and added to the tailpipe emissions, following the provisions set out in paragraph 6.10. of Annex 4.

              5.2.4. For the dilute testing of positive ignition engines by using an exhaust dilution system, it is permitted to use analyser systems that meet the general requirements and calibration procedures of UN Regulation No. 83 or UN Regulation No. 154. In this case, the provisions of paragraph 9. and Appendix 2 to Annex 4 to this Regulation shall not apply.

               However, the test procedures in paragraph 7. of Annex 4 to this Regulation 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