4 REQUIREMENTS

Requirements for Diesel, Liquefied Petroleum Gas and Natural Gas Engines

4.1 Subject to clauses 4.1.1, 4.1.2 and 4.1.3, engines which operate on diesel, liquefied petroleum gas or natural gas, and which comply with the technical requirements of Appendix A, Appendix B and Appendix C, as varied by Part 5 of this vehicle standard, will be accepted as complying with this vehicle standard.

4.1.1 Engines which operate on diesel shall comply with the relevant limit values in row B1 of Table 1 to section 6.2.1 of Appendix A and with the relevant limit values in row B1 of Table 2 to section 6.2.1 of Appendix A.

4.1.2 Engines which operate on liquefied petroleum gas or natural gas shall comply with the relevant limit values in row B1 of Table 2 to section 6.2.1 of Appendix A.

4.1.3 Engines which operate on diesel shall be equipped with an on board diagnostics (OBD) system which complies with the Stage 1 requirements as described in sections 6.5 of Annex I and 3.2 of Annex IV of Appendix B, as amended by Appendix C, or the Stage 2 requirements as described in sections 6.5 of Annex I and 3.3 of Annex IV of Appendix B, as amended by Appendix C.

Requirements for Petrol Engines

4.2 Subject to clause 4.2.1, vehicles which operate on petrol and which comply with technical requirements of United Nations – Economic Commission for Europe Regulation No. 83 Uniform Provisions Concerning the Approval of Vehicles with Regard to the Emissions of Pollutants According to Engine Fuel Requirements, Revision 3, incorporating the 05 series of Amendments, and all amendments up to and including supplement 5, will be accepted as complying with this vehicle standard.

4.2.1 Vehicles shall comply with the limit values in row “A(2000)” of the table to paragraph 5.3.1.4 of the Regulation.