Session 77 | Geneva | 4-8 Jun 2018
Heavy-duty vehicle fuel efficiency harmonization (OICA)
12 Jun 2018 Working Party Informal Documents Worldwide Heavy-Duty Vehicle Emissions Certification Procedure WHDC Global Technical Regulation 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 Heavy-Duty Vehicle Fuel Efficiency Measurement Methods Harmonization HD Fuel Efficiency Measurement GRPE-77-0008