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.
| Reference Number: | WP.29/2012/103 |
| Meeting Session(s): | 158th WP.29 session (13-16 Nov 2012) |
| Document date: | 18 Jul 12 |
| Document status: | Adopted text published |
| Regarding: | UN R49 Diesel/CNG/LNG Engine Emissions | UN R143 HD Dual Fuel Retrofit Systems |
| View full document file for more information | |
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
| Reference Number: | GRPE-82-23 |
| Submitted by: | OICA |
| Meeting Session(s): | 82nd GRPE session (12-15 Jan 2021) |
| Document date: | 11 Jan 21 |
| Document status: | Informal GR review |
| Regarding: | UN R49 Diesel/CNG/LNG Engine Emissions |
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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.
| Reference Number: | WP.29/2013/112 |
| Meeting Session(s): | 161st WP.29 session (12-15 Nov 2013) |
| Document date: | 26 Jul 13 |
| Document status: | Adopted text published |
| Regarding: | UN R49 Diesel/CNG/LNG Engine Emissions |
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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.
| Reference Number: | WP.29/2015/55 |
| Meeting Session(s): | 166th WP.29 session (23-26 Jun 2015) |
| Document date: | 08 Apr 15 |
| Document status: | Adopted text published |
| Regarding: | UN R49 Diesel/CNG/LNG Engine Emissions |
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Proposal to
| Reference Number: | WP.29/2016/41 |
| Meeting Session(s): | 169th WP.29 session (21-24 Jun 2016) |
| Document date: | 08 Apr 16 |
| Document status: | Adopted text published |
| Regarding: | UN R49 Diesel/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. | |
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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
| Reference Number: | WP.29/2017/130 |
| Meeting Session(s): | 173rd WP.29 session (14-17 Nov 2017) |
| Document date: | 25 Aug 17 |
| Document status: | Adopted text published |
| Regarding: | UN R49 Diesel/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. | |
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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.
| Reference Number: | WP.29/2021/130 |
| Meeting Session(s): | 185th WP.29 session (23-26 Nov 2021) |
| Document date: | 08 Sep 21 |
| Document status: | Adopted by WP.29 |
| Regarding: | UN R49 Diesel/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. | |
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Proposal to correct drafting errors in the text.
| Reference Number: | WP.29/2023/59 |
| Meeting Session(s): | 190th WP.29 session (19-22 Jun 2023) |
| Document date: | 04 Apr 23 |
| Document status: | Adopted by WP.29 |
| Regarding: | UN R49 Diesel/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 | |
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.
| Reference Number: | WP.29/2024/46 |
| Meeting Session(s): | 193rd WP.29 session (24-28 Jun 2024) |
| Document date: | 11 Apr 24 |
| Document status: | Adopted by WP.29 |
| Regarding: | UN R49 Diesel/CNG/LNG Engine Emissions |
| View full document file for more information | |
Proposal to remove additions to non-existing part of the 06 series of amendments (delete the PEMS PM number).
| Reference Number: | WP.29/2025/26 |
| Meeting Session(s): | 195th WP.29 session (3-7 Mar) |
| Document date: | 24 Dec 24 |
| Document status: | Adopted by WP.29 |
| Regarding: | UN R49 Diesel/CNG/LNG Engine Emissions |
| View full document file for more information | |