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Proposal for Supplement 1 to the 06 series of amendments to Regulation No. 49
Reference Number: WP.29/2012/103

Text adopted by the GRPE to amend Regulation No. 49 in order to establish provisions for the type-approval of heavy-duty dual-fuel vehicles.

Meeting Sessions: 158th WP.29 session (13-16 Nov 2012)
Document date: 18 Jul 12
Document status: Adopted text published
Relevant to
UN Regulation No. 49 | Diesel and CNG/LNG Engine Emissions and UN Regulation No. 143 | Heavy-Duty Dual Fuel Retrofit Systems
View full document file for more information
Download from UNECE: .pdf format .doc format
UN R49: Proposal for supplement to 06 series of amendment
Reference Number: GRPE-82-23

Proposes the modifications (essentially corrections of mistakes) are derived from the text of document ECE/TRANS/WP.29/GRPE/2021/7 from Japan, related to UN GTR 04, as modified by Informal Document GRPE- 82-09

Submitted by: OICA
Meeting Sessions: 82nd GRPE session (12-15 Jan 2021)
Document date: 11 Jan 21
Document status: Informal GR review
Relevant to
UN Regulation No. 49 | Diesel and CNG/LNG Engine Emissions
View full document file for more information
Download from UNECE: .pdf format .docx format
Proposal for Supplement 2 to the 06 series of amendments to Regulation No. 49
Reference Number: WP.29/2013/112

GRPE-approved text, based on a proposal prepared by the Euro VI Expert Working Group of the European Commission to revise the 06 series of amendments to UN R49 in order to address situations that were not covered by the latest series of amendments and to clarify the text.

Meeting Sessions: 161st WP.29 session (12-15 Nov 2013)
Document date: 26 Jul 13
Document status: Adopted text published
Relevant to
UN Regulation No. 49 | Diesel and CNG/LNG Engine Emissions
View full document file for more information
Download from UNECE: .pdf format
Proposal for Supplement 3 to the 06 series of amendments to Regulation No. 49
Reference Number: WP.29/2015/55

Proposal to adapt certain requirements to the current state of technology and to transpose the latest decisions of the European Union (EU) regarding on-board diagnostics (OBD) threshold limits.

Meeting Sessions: 166th WP.29 session (23-26 Jun 2015)
Document date: 08 Apr 15
Document status: Adopted text published
Relevant to
UN Regulation No. 49 | Diesel and CNG/LNG Engine Emissions
View full document file for more information
Download from UNECE: .pdf format .doc format
Proposal for Supplement 4 to the 06 series of amendments to Regulation No. 49
Reference Number: WP.29/2016/41

Proposal to

  • align the requirements related to measurement equipment linearity verification with the Regulation No. 96,
  • adapt the requirements related to fuel injection malfunction monitoring (On-Board Diagnostic systems) to the current state of technology, and
  • correct the documentation requirements for off-cycle emissions.

Meeting Sessions: 169th WP.29 session (21-24 Jun 2016)
Document date: 08 Apr 16
Document status: Adopted text published
Relevant to
UN Regulation No. 49 | Diesel and CNG/LNG Engine Emissions
Adoption Vote
This proposal (WP.29/2016/41) was adopted by the World Forum. Thirty-five Contracting Parties out of the 43 applying UN R49 were present for the vote by AC.1. Thirty-five voted in favor with zero against and zero abstaining.
View full document file for more information
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Proposal for Supplement 5 to the 06 series of amendments to UN Regulation No. 49
Reference Number: WP.29/2017/130

Proposal to introduce provisions to align UN R49 with recently introduced stage D EU legislation in order enable manufacturers to continue to utilize the provisions in paragraph 4 of Annex 9A to approve light commercial vehicles with a light duty OBD architecture under this regulation. This proposal incorporates all of the provisions of the latest amendment to EU legislation. As stage D is unrelated to OBD, the proposal is to make stage C and all subsequent stages equivalent to EOBD 6-2. The proposal corrects

  1. the constants for equation (34) to calculate exhaust mass flow using carbon balance method,
  2. the constants used for CVS verification,
  3. the formula for regression analysis according to Annex 4, Appendix 3, and
  4. the rise time (to 3.5 s from 2.5 s) for the PEM analyzers under paragraph A.2.2.1. of the 06 series.

Meeting Sessions: 173rd WP.29 session (14-17 Nov 2017)
Document date: 25 Aug 17
Document status: Adopted text published
Relevant to
UN Regulation No. 49 | Diesel and CNG/LNG Engine Emissions
Adoption Vote
This proposal (WP.29/2017/130) was adopted by the World Forum. Thirty-three Contracting Parties out of the 44 applying UN R49 were present for the vote by AC.1. Thirty-three voted in favor with zero against and zero abstaining.
View full document file for more information
Download from UNECE: .pdf format .doc format
UN R49: Proposal for Supplement 7 to the 06 series of amendments
Reference Number: WP.29/2021/130

Proposal from GRPE to correct and clarify the text and to introduce linearity requirements for humidity sensors to address humidity content measurement for the calculation of the specific exhaust emission.

Meeting Sessions: 185th WP.29 session (23-26 Nov 2021)
Document date: 08 Sep 21
Document status: Adopted by WP.29
Relevant to
UN Regulation No. 49 | Diesel and CNG/LNG Engine Emissions
Adoption Vote
This proposal (WP.29/2021/130) was adopted by the World Forum. Thirty-five Contracting Parties out of the 47 applying UN R49 were present for the vote by AC.1. Thirty-five voted in favor with zero against and zero abstaining.
View full document file for more information
Download from UNECE: .pdf format .docx format
UN R49: Proposal for Supplement 8 to the 06 series of amendments
Reference Number: WP.29/2023/59

Proposal to correct drafting errors in the text.

Meeting Sessions: 190th WP.29 session (19-22 Jun 2023)
Document date: 04 Apr 23
Document status: Adopted by WP.29
Relevant to
UN Regulation No. 49 | Diesel and CNG/LNG Engine Emissions
Adoption Vote
This proposal (WP.29/2023/59) was adopted by the World Forum. Thirty-one Contracting Parties out of the 49 applying UN R49 were present for the vote by AC.1. Thirty-one voted in favor with zero against and zero abstaining.
View full document file for more information
Download from UNECE: .pdf format .docx format
UN R49: Proposal for Supplement 9 to the 06 series of amendments
Reference Number: WP.29/2024/46

Proposal to permit the use of hydrogen (H2) as fuel for emissions type-approval of heavy duty vehicles and to introduce an option to measure the total hydrocarbon (THC) emissions instead of measuring the non-methane hydrocarbon emissions in certain cases.

Meeting Sessions: 193rd WP.29 session (24-28 Jun 2024)
Document date: 11 Apr 24
Document status: Adopted by WP.29
Relevant to
UN Regulation No. 49 | Diesel and CNG/LNG Engine Emissions
View full document file for more information
Download from UNECE: .pdf format .docx format
UN R49: Proposal for Supplement 10 to the 06 series of amendments
Reference Number: WP.29/2025/26

Proposal to remove additions to non-existing part of the 06 series of amendments (delete the PEMS PM number).

Meeting Sessions: 195th WP.29 session (3-7 Mar)
Document date: 24 Dec 24
Document status: Adopted by WP.29
Relevant to
UN Regulation No. 49 | Diesel and CNG/LNG Engine Emissions
Adoption Vote
This proposal (WP.29/2025/26) was adopted by the World Forum. Thirty-three Contracting Parties out of the 50 applying UN R49 were present for the vote by AC.1. Thirty-three voted in favor with zero against and zero abstaining.
View full document file for more information
Download from UNECE: .pdf format .docx format
UN R49: Proposal for a Supplement 11 to the 06 series of amendments
Reference Number: WP.29/2025/93

Proposal to maintain consistency between UN R49 and UN R83 in light of amendments to the 06 and 07 series of UN R83.

Meeting Sessions: 197th WP.29 session (10-14 Nov)
Document date: 27 Aug 25
Document status: Formal WP.29 review
Relevant to
UN Regulation No. 49 | Diesel and CNG/LNG Engine Emissions
View full document file for more information
Download from UNECE: .pdf format .docx format
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