| Global technical regulation No. 4 (WHDC) | | gtr No. 4 - Test procedure for compression-ignition (C.I.) engines and positive-ignition (P.I.) engines fuelled with natural gas (NG) or liquefied petroleum gas (LPG) with regard to the emission of pollutants (ECE/TRANS/180/Add.4) | English | | ZIP (1,210 Kb) | PDF (721 Kb) | | French | | ZIP (936 Kb) | PDF (859 Kb) | | Russian | | ZIP (1,341 Kb) | PDF (1,380 Kb) | | | | Appendix to gtr No. 4 - Proposal to develop a global technical regulation concerning heavy-duty vehicle exhaust-emissions type/approval/certification procedure and Report on the development of a global technical regulation concerning test procedure for compression-ignition (C.I.) engines and positive ignition (P.I.) engines fuelled with natural gas (NG) or liquefied petroleum gas (LPG) with regard to the emission of pollutants (ECE/TRANS/180/Add.4/Appendix 1) | | English | DOC (70 Kb) | PDF (65 Kb) | | French | DOC (68 Kb) | PDF (112 Kb) | | Russian | DOC (476 Kb) | PDF (137 Kb) | | Amendment 1 to gtr No. 4 - (ECE/TRANS/180/Add.4/Amend.1) | English | | DOC (3,670 Kb) | PDF (1,060 Kb) | | | | Appendix to Amendment 1 to gtr No. 4 - Proposal to develop Amendment 1 to gtr No. 4 (ECE/TRANS/180/Add.4/Amend.1/Appendix 1) | | English | DOC (134 Kb) | PDF (53 Kb) | | Amendment 2 to gtr No. 4 - (ECE/TRANS/180/Add.4/Amend.2) | English | | DOC(35 Kb) | PDF (106 Kb) | | French | | DOC(38 Kb) | PDF (107 Kb) | | | | Appendix 1 to amendment 2 to gtr No. 4 - Test procedure for compression ignition (C.I.) engines and positive-ignition (P.I.) engines fuelled with natural gas (NG) or liquefied petroleum gas (LPG) with regard to the emission of pollutants (ECE/TRANS/180/Add.4/Amend.2/Appendix 1) | | English | DOC (91 Kb) | PDF (37 Kb) | | French | DOC (91 Kb) | PDF (43 Kb) | | |