4. (b) UN Global Technical Regulations Nos. 4, 5, and 10

GRPE may wish to consider a proposal from the expert of Japan for a new Amendment to UN GTR No. 4, proposing to correct errors and potential unclear provisions to improve the quality and understanding of UN GTR No. 4.

GRPE-82-09/Rev.1 | GTR 4: Proposal to amend document GRPE/2021/7 Proposal to improve the text of provisions introduced in Amendment 3 to UN GTR No.4.
GRPE/2021/7 | GTR 4: Proposal for an amendment Proposal to correct the improper or confusing provisions described in Amendment 3 to UN GTR No.4.
GRPE/2021/7 | GTR 4: Proposal for an amendment Proposal to correct the improper or confusing provisions described in Amendment 3 to UN GTR No.4.
GRPE-82-09/Rev.1 | GTR 4: Proposal to amend document GRPE/2021/7 Proposal to improve the text of provisions introduced in Amendment 3 to UN GTR No.4.
GRPE-82-09/Rev.1
GTR 4: Proposal to amend document GRPE/2021/7 (Japan)
11 Jan 2021 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 Proposal to improve the text of provisions introduced in Amendment 3 to UN GTR No.4. GRPE-82-0009/Rev.1
GRPE/2021/7
GTR 4: Proposal for an amendment (Japan)
04 Nov 2020 Working Party Formal 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 Proposal to correct the improper or confusing provisions described in Amendment 3 to UN GTR No.4. GRPE/2021/0007