Proposal to introduce new requirements relating to Auxiliary Emission Strategies, cold engine starts and the use of Portable Emissions Measurement Systems (PEMS) to measure particle numbers.
| Reference Number: | WP.29/2021/66 |
| Meeting Session(s): | 184th WP.29 session (22-24 Jun 2021) |
| Document date: | 12 Apr 21 |
| Document status: | Adopted by WP.29 |
| Regarding: | UN R49 Diesel/CNG/LNG Engine Emissions |
| Adoption Vote | |
| This proposal (WP.29/2021/66), as amended by para 97, was adopted by the World Forum. Thirty-four Contracting Parties out of the 47 applying UN R49 were present for the vote by AC.1. Thirty-four voted in favor with zero against and zero abstaining. | |
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Proposal from GRPE to introduce provisions for the approval of a vehicle type with an approved engine with regard to their emission of pollutants, and the reporting of the CO2 emissions and fuel consumption for type approval of vehicles with a reference mass exceeding 2,380 kg but not exceeding 2,610 kg.
| Reference Number: | WP.29/2022/74 |
| Meeting Session(s): | 187th WP.29 session (20-24 Jun 2022) |
| Document date: | 06 Apr 22 |
| Document status: | Adopted by WP.29 |
| Regarding: | UN R49 Diesel/CNG/LNG Engine Emissions |
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Proposal to permit the use of hydrogen (H2) as fuel for emissions type approval of heavy-duty vehicles, to insert provisions in Supplement 7 to the 06 series that were unintentionally omitted, to add a requirement for the accuracy of the humidity sensor, correct a typographical error (NOx mode), and to clarify the procedures.
| Reference Number: | WP.29/2023/60 |
| Meeting Session(s): | 190th WP.29 session (19-22 Jun 2023) |
| Document date: | 04 Apr 23 |
| Document status: | WP.29 amended and adopted |
| Regarding: | UN R49 Diesel/CNG/LNG Engine Emissions |
| Adoption Vote | |
| This proposal (WP.29/2023/60), as amended by para. 99 of the session report, 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. | |
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Proposal aims to clarify the measurement data.
| Reference Number: | GRPE/2024/22 |
| Submitted by: | OICA |
| Meeting Session(s): | 91st GRPE session (14-16 Oct 2024) |
| Document date: | 21 Aug 24 |
| Document status: | Formal GR review |
| Regarding: | UN R49 Diesel/CNG/LNG Engine Emissions |
Proposal to introduce new provisions to accommodate type-approval of hydrogen Type 1A dual fuel engines and vehicles, modifications to include Fourier Transform Infrared (FTIR) and Quantum Cascade Laser (QCL) instruments and new provisions to accommodate monitoring on-board fuel and/or energy consumption during PEMS testing.
| Reference Number: | GRPE/2025/12 |
| Submitted by: | EC |
| Meeting Session(s): | 92nd GRPE session (25-28 Mar) |
| Document date: | 10 Jan 25 |
| Document status: | Formal GR review |
| Regarding: | UN R49 Diesel/CNG/LNG Engine Emissions |
| View full document file for more information | |
| Documents establishing the amendments | |||||
|---|---|---|---|---|---|
| 07 series of amendments | WP.29/2021/66 | ||||
| Supplement 1 | WP.29/2022/74 | ||||
| Supplement 2 | WP.29/2023/60 | ||||
| Supplement 3 | GRPE/2024/22 | ||||
| Supplement 4 | GRPE/2025/12 | ||||