The Working Party on Pollution and Energy (GRPE) prepares regulatory proposals concerning motor-vehicle pollutant emissions, fuel efficiency, energy consumption, and similar environmental performance areas for consideration by the World Forum/WP.29. More than 120 government, industry, and other interested experts contribute to this work at each session.
GRPE work is closely related to European Union emissions and fuel-efficiency standards. UN Regulation Nos. 49, 83, and 101 correspond respectively to the EU emissions standards for light passenger vehicles (e.g., Euro 6), heavy vehicle emissions standards (e.g., EURO VI), and fuel-efficiency and CO2 emissions standards for light passenger vehicles.
GRPE usually convenes during January and June of each year and supervises a number of subgroups working on specific technical aspects of vehicle powertrain environmental performance.
| UN R154: Proposal to amend GRPE/2026/9 |
| Reference Number: GRPE-94-33/Rev.2 |
| Meeting Sessions: 94th GRPE session (17-19 Mar) |
| Document date: 19 Mar 26 |
| Document status: Formal GR review |
| Relevant to: UN Regulation No. 154 | Light Vehicle Emissions Type Approval Test Procedure |
| Click here to view the full document file |
| UN R180: Proposal to amend GRPE/2026/10 |
| Reference Number: GRPE-94-37/Rev.2 |
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Proposal to amend UN R180 to incorporate vehicles with Automated Driving Systems. Changes include adding ADS abbreviation and definitions for “ADS user” and “Vehicle user”; amending terminology throughout from “driver” to “vehicle user” or “driver and/or ADS”; introducing the Excess Exhaust Emissions Driver/user Warning System definition; modifying accelerator pedal references to include torque demand from ADS; and clarifying that warnings shall be sent to the ADS, which will then inform the relevant ADS user. |
| Meeting Sessions: 94th GRPE session (17-19 Mar) |
| Document date: 19 Mar 26 |
| Document status: Formal GR review |
| Relevant to: UN Regulation No. 180 | On-Board Monitoring Systems |
| Click here to view the full document file |
| UN R154: Proposal for amendments to 04 series of amendments |
| Reference Number: GRPE-94-57/Rev.2 |
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Proposal clarifies the OBFCM requirements |
| Submitted by: OICA |
| Meeting Sessions: 94th GRPE session (17-19 Mar) |
| Document date: 17 Mar 26 |
| Relevant to: UN Regulation No. 154 | Light Vehicle Emissions Type Approval Test Procedure |
| Click here to view the full document file |
| UN R154: Statement OBFCM_Lifetime Value |
| Reference Number: GRPE-94-58/Rev.1 |
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Proposal for change in transitional provisions to take into considerations of the lifetime value retention status |
| Submitted by: OICA |
| Meeting Sessions: 94th GRPE session (17-19 Mar) |
| Document date: 17 Mar 26 |
| Relevant to: UN Regulation No. 154 | Light Vehicle Emissions Type Approval Test Procedure |
| Click here to view the full document file |
| UN R180: Proposal for Supplement to the original version |
| Reference Number: GRPE-94-61/Rev.1 |
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Provides corrections and updates to the requirements, including to reflect the fact that requirements for manipulation devices and manipulation strategies |
| Submitted by: OICA and UK |
| Meeting Sessions: 94th GRPE session (17-19 Mar) |
| Document date: 18 Mar 26 |
| Relevant to: UN Regulation No. 180 | On-Board Monitoring Systems |
| Click here to view the full document file |
| UN R154: ADS/AVRS amendments to 00, 01, 02, 03 Series of Amendments |
| Reference Number: GRPE-94-63/Rev 1 |
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This proposal updates provisions for automated vehicles and automated driving systems. |
| Submitted by: OICA |
| Meeting Sessions: 94th GRPE session (17-19 Mar) |
| Document date: 18 Mar 26 |
| Relevant to: UN Regulation No. 154 | Light Vehicle Emissions Type Approval Test Procedure |
| Click here to view the full document file |
| UN R83: Proposal to amend GRPE/2025/23 |
| Reference Number: GRPE-94-18/Rev.1 |
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Proposal to clarify Annex 3, table A3/1 regarding minimum type-approval requirements for Euro 6e, Euro 6e-bis, and Euro 6e-bis-FCM under UN R83 by specifying the relevant series of amendments for UN R24, R85, and R168, which were omitted when the 08 Series was created as no new amendments were anticipated at the time. A minor editorial correction is also included. |
| Submitted by: OICA |
| Meeting Sessions: 94th GRPE session (17-19 Mar) |
| Document date: 19 Mar 26 |
| Document status: Informal GR review |
| Relevant to: UN Regulation No. 83 | Motor Vehicle Emissions |
| Click here to view the full document file |
| UN R154: Proposal to amend GRPE/2026/13 |
| Reference Number: GRPE-94-66 |
| Submitted by: EC, Japan, OICA, and UK |
| Meeting Sessions: 94th GRPE session (17-19 Mar) |
| Document date: 19 Mar 26 |
| Document status: Formal GR review |
| Relevant to: UN Regulation No. 154 | Light Vehicle Emissions Type Approval Test Procedure |
| Click here to view the full document file |
| UN R83: Proposal to amend WP.29/2026/25 |
| Reference Number: GRPE-94-24/Rev.1 |
| Submitted by: EC |
| Meeting Sessions: 94th GRPE session (17-19 Mar) |
| Document date: 19 Mar 26 |
| Document status: Formal GR review |
| Relevant to: UN Regulation No. 83 | Motor Vehicle Emissions |
| Click here to view the full document file |
| UN R83: List of documents for the 09 series of amendments |
| Reference Number: GRPE-94-67 |
| Meeting Sessions: 94th GRPE session (17-19 Mar) |
| Document date: 19 Mar 26 |
| Relevant to: UN Regulation No. 83 | Motor Vehicle Emissions |
| Click here to view the full document file |
| Replacement brake emissions: Proposal to amend GRPE/2026/26 |
| Reference Number: GRPE-94-36/Rev.1 |
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This document is also available with tracked changes. |
| Submitted by: CLEPA |
| Meeting Sessions: 94th GRPE session (17-19 Mar) |
| Document date: 18 Mar 26 |
| Document status: Formal GR review |
| Relevant to: WP.29 Regulatory Project | Approval of Non-Original and Identical Brake Parts with regard to the Particulate Emissions |
| Click here to view the full document file |
| UN R96: Proposal for Supplement to the 05 Series of amendments |
| Reference Number: GRPE-94-62 |
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Proposal for amendments to ECE/TRANS/WP.29/GRPE/2026/24 |
| Submitted by: EUROMOT |
| Meeting Sessions: 94th GRPE session (17-19 Mar) |
| Document date: 18 Mar 26 |
| Relevant to: UN Regulation No. 95 | Occupant Protection in Lateral Collisions |
| Click here to view the full document file |
| UN R154: Overall Summary of 04 series of amendments |
| Reference Number: GRPE-94-64 |
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Review of the different proposed amendments (03/04 series with different Supplements) to the regulations |
| Submitted by: Japan |
| Meeting Sessions: 94th GRPE session (17-19 Mar) |
| Document date: 18 Mar 26 |
| Relevant to: UN Regulation No. 154 | Light Vehicle Emissions Type Approval Test Procedure |
| Click here to view the full document file |
| PMP informal group status report to GRPE |
| Reference Number: GRPE-94-26 |
| Meeting Sessions: 94th GRPE session (17-19 Mar) |
| Document date: 18 Mar 26 |
| Relevant to: WP.29 Discussion Topic | Particle Measurement Programme, GTR No. 24 | Laboratory Measurement of Brake Emissions for Light-Duty Vehicles, WP.29 Regulatory Project | Heavy-duty Vehicle Brake Particle Emissions Measurement, UN Regulation No. 179 | Approval of vehicles with regard to the particle emissions of their braking system, and WP.29 Regulatory Project | Approval of Non-Original and Identical Brake Parts with regard to the Particulate Emissions |
| Click here to view the full document file |
| Comparing Heavy-Duty Vehicle Fuel Consumption & CO₂ Certification Across Global Markets |
| Reference Number: GRPE-94-25/Rev.1 |
| Submitted by: ICCT |
| Meeting Sessions: 94th GRPE session (17-19 Mar) |
| Document date: 18 Mar 26 |
| Relevant to: WP.29 Discussion Topic | Heavy-Duty Vehicle Fuel Efficiency Measurement Methods Harmonization |
| Click here to view the full document file |
| UN R83: Proposal to amend GRPE/2026/11 and GRPE/2026/12 |
| Reference Number: GRPE-94-65 |
| Submitted by: EC, OICA, and UK |
| Meeting Sessions: 94th GRPE session (17-19 Mar) |
| Document date: 18 Mar 26 |
| Document status: Formal GR review |
| Relevant to: UN Regulation No. 83 | Motor Vehicle Emissions |
| Click here to view the full document file |
| UN R96: Explanatory notes for GRPE/2026/24 |
| Reference Number: GRPE-94-11/Rev.1 |
| Submitted by: EUROMOT |
| Meeting Sessions: 94th GRPE session (17-19 Mar) |
| Document date: 18 Mar 26 |
| Relevant to: UN Regulation No. 96 | Tractor and NRMM Engine Emissions |
| Click here to view the full document file |
| GTR 22: Proposal to amend GRPE/2026/5 |
| Reference Number: GRPE-94-42/Rev.1 |
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This document is also available with tracked changes. |
| Meeting Sessions: 94th GRPE session (17-19 Mar) and 95th EVE session (16 Mar) |
| Document date: 18 Mar 26 |
| Document status: Formal GR review |
| Relevant to: GTR No. 22 | Electrified Vehicle Battery Durability |
| Click here to view the full document file |
| GRPE-94: Updated agenda for the March 2026 session |
| Reference Number: GRPE-94-01/Rev.3 |
| Meeting Sessions: 94th GRPE session (17-19 Mar) |
| Document date: 18 Mar 26 |
| Click here to view the full document file |
| UN R179: Proposal to amend GRPE/2026/25 |
| Reference Number: GRPE-94-35 |
| Meeting Sessions: 94th GRPE session (17-19 Mar) |
| Document date: 17 Mar 26 |
| Document status: Formal GR review |
| Relevant to: UN Regulation No. 179 | Approval of vehicles with regard to the particle emissions of their braking system and WP.29 Regulatory Project | Review of Regulations for Applicability to ADS Vehicles |
| Click here to view the full document file |