The EPPR informal group works on motorcycle and related vehicle category emissions, including the Worldwide Motorcycle Emissions Test Cycle (WMTC under GTR 2), on-board diagnostics (GTR 19), and the durability of emissions-control devices. The group published revised Terms of Reference on 2 December 2020.
| Progress in Deterioration Factor of China Stage V emission standard (Draft for motorcycles and mopeds |
| Reference Number: EPPR-65-04/Rev.1 |
| Submitted by: TICERI |
| Meeting Sessions: 65th EPPR session (14 Jan 2025) |
| Document date: 10 Jan 25 |
| Relevant to: GTR No. 23 | Durability of L-category Vehicle Pollution Control Devices |
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| Assigned Deterioration Factor Analyses from US EPA Motorcycle Certification Information |
| Reference Number: EPPR-65-05 |
| Submitted by: US EPA |
| Meeting Sessions: 65th EPPR session (14 Jan 2025) |
| Document date: 10 Jan 25 |
| Relevant to: GTR No. 23 | Durability of L-category Vehicle Pollution Control Devices |
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| L-Vehicle Environmental and Propulsion Performance Requirements: Agenda for the 65th (January 2025) session |
| Reference Number: EPPR-65-01/Rev.2 |
| Meeting Sessions: 65th EPPR session (14 Jan 2025) |
| Document date: 10 Jan 25 |
| Relevant to: GTR No. 2 | Motorcycle Emissions and Fuel Consumption, UN Regulation No. 40 | Emission of Gaseous Pollutants by Motorcycles, WP.29 Discussion Topic | L-vehicle Environmental and Propulsion Performance Requirements, GTR No. 23 | Durability of L-category Vehicle Pollution Control Devices, WP.29 Discussion Topic | Measurement of Motorcycle Max Power, WP.29 Discussion Topic | L-Category Battery Electric Vehicle Range, and WP.29 Discussion Topic | Electric L-category Vehicle Battery Durability |
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| L-Vehicle Environmental and Propulsion Performance Requirements: Agenda for the 66th (February 2025) session |
| Reference Number: EPPR-66-01 |
| Meeting Sessions: 66th EPPR session (18 Feb 2025) |
| Document date: 27 Jan 25 |
| Relevant to: GTR No. 2 | Motorcycle Emissions and Fuel Consumption, UN Regulation No. 40 | Emission of Gaseous Pollutants by Motorcycles, WP.29 Discussion Topic | L-vehicle Environmental and Propulsion Performance Requirements, GTR No. 23 | Durability of L-category Vehicle Pollution Control Devices, WP.29 Discussion Topic | Measurement of Motorcycle Max Power, and WP.29 Discussion Topic | L-Category Battery Electric Vehicle Range |
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| L-Vehicle Environmental and Propulsion Performance Requirements: Report of the 66th (February 2025) session |
| Reference Number: EPPR-66-02 |
| Meeting Sessions: 66th EPPR session (18 Feb 2025) |
| Document date: 24 Feb 25 |
| Relevant to: UN Regulation No. 40 | Emission of Gaseous Pollutants by Motorcycles, GTR No. 2 | Motorcycle Emissions and Fuel Consumption, and GTR No. 23 | Durability of L-category Vehicle Pollution Control Devices |
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| L-Vehicle Environmental and Propulsion Performance Requirements: Agenda for the 67th (March 2025) session |
| Reference Number: EPPR-67-01 |
| Meeting Sessions: 67th EPPR session (24 Mar 2025) |
| Document date: 07 Mar 25 |
| Relevant to: GTR No. 2 | Motorcycle Emissions and Fuel Consumption, UN Regulation No. 40 | Emission of Gaseous Pollutants by Motorcycles, WP.29 Discussion Topic | L-vehicle Environmental and Propulsion Performance Requirements, GTR No. 23 | Durability of L-category Vehicle Pollution Control Devices, WP.29 Discussion Topic | Measurement of Motorcycle Max Power, and WP.29 Discussion Topic | L-Category Battery Electric Vehicle Range |
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| EPPR informal group status report to GRPE |
| Reference Number: EPPR-67-02/Rev.2 |
| Meeting Sessions: 67th EPPR session (24 Mar 2025) |
| Document date: 31 Mar 25 |
| Relevant to: GTR No. 2 | Motorcycle Emissions and Fuel Consumption, UN Regulation No. 40 | Emission of Gaseous Pollutants by Motorcycles, WP.29 Discussion Topic | L-vehicle Environmental and Propulsion Performance Requirements, GTR No. 23 | Durability of L-category Vehicle Pollution Control Devices, WP.29 Discussion Topic | Measurement of Motorcycle Max Power, and WP.29 Discussion Topic | L-Category Battery Electric Vehicle Range |
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| L-Vehicle Environmental and Propulsion Performance Requirements: Report of the 67th (March 2025) session |
| Reference Number: EPPR-67-03 |
| Meeting Sessions: 67th EPPR session (24 Mar 2025) |
| Document date: 04 Apr 25 |
| Relevant to: GTR No. 2 | Motorcycle Emissions and Fuel Consumption, UN Regulation No. 40 | Emission of Gaseous Pollutants by Motorcycles, WP.29 Discussion Topic | L-vehicle Environmental and Propulsion Performance Requirements, GTR No. 23 | Durability of L-category Vehicle Pollution Control Devices, WP.29 Discussion Topic | Measurement of Motorcycle Max Power, and WP.29 Discussion Topic | L-Category Battery Electric Vehicle Range |
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| L-Vehicle Environmental and Propulsion Performance Requirements: Agenda for the 68th (May 2025) session |
| Reference Number: EPPR-68-01/Rev.1 |
| Meeting Sessions: 68th EPPR session (28 May 2025) |
| Document date: 20 May 25 |
| Relevant to: GTR No. 2 | Motorcycle Emissions and Fuel Consumption, UN Regulation No. 40 | Emission of Gaseous Pollutants by Motorcycles, GTR No. 23 | Durability of L-category Vehicle Pollution Control Devices, WP.29 Discussion Topic | Measurement of Motorcycle Max Power, and WP.29 Discussion Topic | L-Category Battery Electric Vehicle Range |
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| L-Vehicle Environmental and Propulsion Performance Requirements: Agenda for the 68th (May 2025) session |
| Reference Number: EPPR-68-03 |
| Meeting Sessions: 68th EPPR session (28 May 2025) |
| Document date: 28 May 25 |
| Relevant to: GTR No. 2 | Motorcycle Emissions and Fuel Consumption, UN Regulation No. 40 | Emission of Gaseous Pollutants by Motorcycles, WP.29 Discussion Topic | L-vehicle Environmental and Propulsion Performance Requirements, GTR No. 23 | Durability of L-category Vehicle Pollution Control Devices, WP.29 Discussion Topic | Measurement of Motorcycle Max Power, WP.29 Discussion Topic | L-Category Battery Electric Vehicle Range, and WP.29 Discussion Topic | Electric L-category Vehicle Battery Durability |
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| EPPR informal group updated and approved terms of reference |
| Reference Number: EPPR-68-04 |
| Meeting Sessions: 68th EPPR session (28 May 2025) |
| Document date: 28 May 25 |
| Relevant to: GTR No. 2 | Motorcycle Emissions and Fuel Consumption, UN Regulation No. 40 | Emission of Gaseous Pollutants by Motorcycles, WP.29 Discussion Topic | L-vehicle Environmental and Propulsion Performance Requirements, GTR No. 23 | Durability of L-category Vehicle Pollution Control Devices, WP.29 Discussion Topic | Measurement of Motorcycle Max Power, WP.29 Discussion Topic | L-Category Battery Electric Vehicle Range, and WP.29 Discussion Topic | Electric L-category Vehicle Battery Durability |
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| EPPR informal group terms of reference: Draft updates |
| Reference Number: EPPR-68-02 |
| Meeting Sessions: 68th EPPR session (28 May 2025) and 70th EPPR session (18 Sep 2025) |
| Document date: 28 May 25 |
| Relevant to: GTR No. 2 | Motorcycle Emissions and Fuel Consumption, UN Regulation No. 40 | Emission of Gaseous Pollutants by Motorcycles, WP.29 Discussion Topic | L-vehicle Environmental and Propulsion Performance Requirements, GTR No. 23 | Durability of L-category Vehicle Pollution Control Devices, WP.29 Discussion Topic | Measurement of Motorcycle Max Power, WP.29 Discussion Topic | L-Category Battery Electric Vehicle Range, and WP.29 Discussion Topic | Electric L-category Vehicle Battery Durability |
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| L-Vehicle Environmental and Propulsion Performance Requirements: Report of the 68th (May 2025) session |
| Reference Number: EPPR-68-05 |
| Meeting Sessions: 68th EPPR session (28 May 2025) |
| Document date: 02 Jun 25 |
| Relevant to: GTR No. 2 | Motorcycle Emissions and Fuel Consumption, UN Regulation No. 40 | Emission of Gaseous Pollutants by Motorcycles, WP.29 Discussion Topic | L-vehicle Environmental and Propulsion Performance Requirements, GTR No. 23 | Durability of L-category Vehicle Pollution Control Devices, WP.29 Discussion Topic | Measurement of Motorcycle Max Power, WP.29 Discussion Topic | L-Category Battery Electric Vehicle Range, and WP.29 Discussion Topic | Electric L-category Vehicle Battery Durability |
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| L-Vehicle Environmental and Propulsion Performance Requirements: Agenda for the 69th (June 2025) session |
| Reference Number: EPPR-69-01 |
| Meeting Sessions: 69th EPPR session (30 Jun 2025) |
| Document date: 11 Jun 25 |
| Relevant to: GTR No. 2 | Motorcycle Emissions and Fuel Consumption, UN Regulation No. 40 | Emission of Gaseous Pollutants by Motorcycles, WP.29 Discussion Topic | L-vehicle Environmental and Propulsion Performance Requirements, GTR No. 23 | Durability of L-category Vehicle Pollution Control Devices, WP.29 Discussion Topic | Measurement of Motorcycle Max Power, and WP.29 Discussion Topic | L-Category Battery Electric Vehicle Range |
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| UN R40: Proposal for the 02 series of amendments |
| Reference Number: EPPR-69-02 |
| Submitted by: IMMA |
| Meeting Sessions: 69th EPPR session (30 Jun 2025) |
| Document date: 27 Jun 25 |
| Relevant to: UN Regulation No. 40 | Emission of Gaseous Pollutants by Motorcycles |
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| UN R40: Proposal for a 02 series of amendments |
| Reference Number: EPPR-69-03 |
| Submitted by: IMMA |
| Meeting Sessions: 69th EPPR session (30 Jun 2025) |
| Document date: 27 Jun 25 |
| Relevant to: UN Regulation No. 40 | Emission of Gaseous Pollutants by Motorcycles |
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| Click here to view the full document file |
| L-Vehicle Environmental and Propulsion Performance Requirements: Report of the 69th (June 2025) session |
| Reference Number: EPPR-69-04 |
| Meeting Sessions: 69th EPPR session (30 Jun 2025) |
| Document date: 11 Jul 25 |
| Relevant to: GTR No. 2 | Motorcycle Emissions and Fuel Consumption, UN Regulation No. 40 | Emission of Gaseous Pollutants by Motorcycles, WP.29 Discussion Topic | L-vehicle Environmental and Propulsion Performance Requirements, GTR No. 23 | Durability of L-category Vehicle Pollution Control Devices, WP.29 Discussion Topic | Measurement of Motorcycle Max Power, and WP.29 Discussion Topic | L-Category Battery Electric Vehicle Range |
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| L-Vehicle Environmental and Propulsion Performance Requirements: Agenda for the 70th (September 2025) session |
| Reference Number: EPPR-70-01 |
| Meeting Sessions: 70th EPPR session (18 Sep 2025) |
| Document date: 24 Jul 25 |
| Relevant to: GTR No. 2 | Motorcycle Emissions and Fuel Consumption, UN Regulation No. 40 | Emission of Gaseous Pollutants by Motorcycles, WP.29 Discussion Topic | L-vehicle Environmental and Propulsion Performance Requirements, GTR No. 23 | Durability of L-category Vehicle Pollution Control Devices, WP.29 Discussion Topic | Measurement of Motorcycle Max Power, and WP.29 Discussion Topic | L-Category Battery Electric Vehicle Range |
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| EPPR informal group status report to GRPE |
| Reference Number: EPPR-70-02/Rev.1 |
| Meeting Sessions: 70th EPPR session (18 Sep 2025) |
| Document date: 16 Sep 25 |
| Relevant to: GTR No. 2 | Motorcycle Emissions and Fuel Consumption, UN Regulation No. 40 | Emission of Gaseous Pollutants by Motorcycles, GTR No. 23 | Durability of L-category Vehicle Pollution Control Devices, WP.29 Discussion Topic | Measurement of Motorcycle Max Power, and WP.29 Discussion Topic | L-Category Battery Electric Vehicle Range |
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| L-Vehicle Environmental and Propulsion Performance Requirements: Report of the 70th (September 2025) session |
| Reference Number: EPPR-70-03 |
| Meeting Sessions: 70th EPPR session (18 Sep 2025) |
| Document date: 22 Sep 25 |
| Relevant to: UN Regulation No. 40 | Emission of Gaseous Pollutants by Motorcycles, GTR No. 2 | Motorcycle Emissions and Fuel Consumption, and WP.29 Discussion Topic | L-vehicle Environmental and Propulsion Performance Requirements |
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| EPPR informal group draft status report to GRPE |
| Reference Number: EPPR-71-02 |
| Meeting Sessions: 71st EPPR session (14 Oct 2025) |
| Document date: 02 Oct 25 |
| Relevant to: GTR No. 2 | Motorcycle Emissions and Fuel Consumption, UN Regulation No. 40 | Emission of Gaseous Pollutants by Motorcycles, WP.29 Discussion Topic | L-vehicle Environmental and Propulsion Performance Requirements, WP.29 Discussion Topic | Measurement of Motorcycle Max Power, WP.29 Discussion Topic | L-Category Battery Electric Vehicle Range, and WP.29 Discussion Topic | Electric L-category Vehicle Battery Durability |
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| UN R40: Formal submission for a 02 series of amendments |
| Reference Number: EPPR-71-03 |
| Meeting Sessions: 71st EPPR session (14 Oct 2025) |
| Document date: 02 Oct 25 |
| Relevant to: UN Regulation No. 40 | Emission of Gaseous Pollutants by Motorcycles |
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| L-Vehicle Environmental and Propulsion Performance Requirements: Agenda for the 71st (October 2025) session |
| Reference Number: EPPR-71-01/Rev.1 |
| Meeting Sessions: 71st EPPR session (14 Oct 2025) |
| Document date: 13 Oct 25 |
| Relevant to: UN Regulation No. 40 | Emission of Gaseous Pollutants by Motorcycles, GTR No. 2 | Motorcycle Emissions and Fuel Consumption, and WP.29 Discussion Topic | L-vehicle Environmental and Propulsion Performance Requirements |
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| UN R40: Informal document superseding the formal proposal for the 02 series |
| Reference Number: EPPR-71-05 |
| Meeting Sessions: 71st EPPR session (14 Oct 2025) |
| Document date: 13 Oct 25 |
| Relevant to: UN Regulation No. 40 | Emission of Gaseous Pollutants by Motorcycles |
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| L-Vehicle Environmental and Propulsion Performance Requirements: Report of the 71st (October 2025) session |
| Reference Number: EPPR-71-06 |
| Meeting Sessions: 71st EPPR session (14 Oct 2025) |
| Document date: 14 Oct 25 |
| Relevant to: UN Regulation No. 40 | Emission of Gaseous Pollutants by Motorcycles and GTR No. 2 | Motorcycle Emissions and Fuel Consumption |
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| UN R40: Informal document proposing amendments to the 02 series submission |
| Reference Number: EPPR-71-04/Rev.1 |
| Meeting Sessions: 71st EPPR session (14 Oct 2025) |
| Document date: 14 Oct 25 |
| Relevant to: UN Regulation No. 40 | Emission of Gaseous Pollutants by Motorcycles |
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