Proposal for a 03 series of amendments, modifying para. 5.4.1.4 (Table 5) to change emission limits for Classes 1, 2, and 3, amending para. 5.4.2.2 to establish CO measurement requirements at idle, adding para. 5.4.4.3 to establish requirements for O₂ content and lambda measurement at high idle with specified calculation methods, modifying para. 12 to change transitional provision references from 02 to 03 series, and inserting comprehensive new technical requirements throughout Annexes 1 through 7 and their Appendices 1 through 12 concerning vehicle propulsion unit families, test procedures for Type I, Type II and Type VII tests, exhaust dilution systems, driving cycles, gearshift procedures, reference fuels, chassis dynamometer specifications, and related emissions testing methodologies applicable to vehicles of category L₃, L₄ and L₅.

The agenda includes transposition of UN-GTR 2 into UN R40, with discussions on Euro 4 level amendments, maximum power determination for two-wheelers, battery electric vehicle range standardization using SAE J2982 procedures, and deterioration factors in GTR 23.

The 72nd EPPR session (March 2026) adopted the revised agenda and previous meeting report without changes. The 02 series of amendments to UN Regulation No. 40, transposing UN-GTR No. 2 to Euro 3 emission level (GRPE/2025/22 as amended by GRPE-93-26), was adopted for submission to WP.29/AC.1 in March 2026 and subsequently adopted by WP.29 at its 198th session. The IWG-EPPR Terms of Reference were extended for two years until 2027. IMMA offered to prepare a draft 03 series of amendments to UN Regulation No. 40 for Euro 4, tentatively expected by early June. The group agreed to reconvene around that time. The group reviewed information exchanges on maximum power determination, battery electric vehicle range determination standardization, and deterioration factors in GTR 23 on durability. Next meetings are scheduled for June, July, and September 2026, with the 76th session in October 2026 coinciding with GRPE.

Proposal to align the provisions of UN R40 with the Euro 3 emissions standard.

Proposal from the informal group on Environmental and Propulsion Performance Requirements of L-Category Vehicles to align the provisions of UN R40 with the Euro 3 emissions standard.

Proposal from the informal group on Environmental and Propulsion Performance Requirements of L-Category Vehicles to align the provisions of UN R40 with the Euro 3 emissions standard.

Proposal to establish a 02 series of amendments corresponding to the Euro 3 emissions standard (Euro 4 and Euro 5 to be covered in the future by a 03 and 04 series).

Stakeholder Update on Tentative Regulatory Proposal for Motorcycle Emissions in California.

At a public workshop, on November 17, 2020, CARB staff made a request to the participants to share compliance cost information which would be helpful in this effort. This survey is a formal request for the compliance cost information discussed at that meeting.

Announcement and link to an EC survey seeking views on the impact of Regulation (EU) No 168/2013 with regard to benefits, costs and technical feasibility of the Euro 5 Environmental Step.

Working draft of the proposed global technical regulation on the measurement procedure for two- or three-wheeled light motor vehicle equipped with a combustion engine with regard to the crankcase and evaporative emissions.

The main objective of this proposal is to establish an amendment to global technical regulation No. 2 on the Worldwide harmonized Motorcycle emissions Certification-test procedure (WMTC) to insert Environmental and Propulsion Performance Requirements (EPPR), currently only applicable for two-wheeled motorcycles. Should an amendment to GTR No. 2 be deemed inappropriate, alternatives including development of a new GTR will be considered.

The objectives also include development of requirements and/or test procedures to create synergies and uniform provisions with related 1958 Agreement UN Regulations, exchange information on current and future regulatory EPPR, e.g. for
“category 3 vehicles” or “L-category vehicles”, minimize differences between these regulatory EPPR, with the view to facilitate the development of light vehicles complying with such internationally harmonized requirements, and to assess coherence with other regulatory requirements and groups activities, such as those on Worldwide harmonized Light vehicles Test Procedures (WLTP) and on Electric Vehicles and the Environment (EVE).

Agenda for the teleconference planned to precede the fourth EPPR informal group session.

Request for a mandate to amend UN GTR No. 2 and to develop new UN GTRs and UN Regulations in the area of Environmental and Propulsion Performance Requirements (EPPR) for light vehicles

Progress report of the informal group on environmental and propulsion performance requirements (EPPR) for L-category vehicles to the Working Party on Pollution and Energy (GRPE).

Proposed mandate for the EPPR informal group incorporating European Commission comments on the draft Revision 4.

Proposal for the mandate and objectives of the Informal Working Group on Environmental and Propulsion Performance Requirements for L-category vehicles (EPPR) submitted for GRPE approval.

Request for a mandate to amend UN GTR No. 2 and to develop new UN GTRs and UN Regulations in the area of Environmental and Propulsion Performance Requirements (EPPR) for light vehicles

Draft of a request, for submission to the World Forum, to confirm the mandate for an expert group to develop regulations on environmental and propulsion performance requirements for motorcycles and other L-category vehicles, including through amendments to the GTR on motorcycle emissions.

Updated presentation on the TRL/ECORYS study on environmental and propulsion
performance requirements for motorcycles and other L-category vehicles under the auspices of the European Commission.

Summary of the Future Emission Reduction
Measures for Motorcycles from the Future Policy for Motor Vehicle Emission Reduction (The 11th Report) and Current Discussion in Japan

TRL/ECORYS Report: "International L-category approval in the area of environmental and propulsion performance requirements-Revision of UN Regulations and Global technical regulations: Mid-term report on the progress of the project

Summary report of the first meeting on the development of global standards for motorcycle environmental and propulsion performance requirements.

Introductory orientation presentation concerning the informal group established to develop common worldwide requirements for environmental and propulsion performance requirements (EPPR) for motorcycles and related vehicles (L-category vehicles).

Presentation on the Ecorys/TRL EPPR study project.

Revised proposal for the schedule and project plan for establishing unified global regulations on the environmental and propulsion performance of motorcycles and other L-category vehicles.

Presentation entitled “Summary of the Future Emission Reduction Measures for Motorcycles from The Future Policy for Motor Vehicle Emission Reduction”.

Informal working group on Environmental and Propulsion Performance Requirements (EPPR) for L-category vehicles: background information, terms of
reference and rules of procedure.

Proposal to establish an informal working group to consider the development of UN Regulations and Global Technical Regulations with regard to environmental and propulsion performance requirements (EPPR) for L-category vehicles (powered cycles, mopeds, motorcycles, tricycles and quadricycles).

United Kingdom recommendations for the draft terms of reference for the proposed informal working group on revision and amendments to international L-category vehicle requirements in the area of environmental and propulsion performance.

Draft project schedule and roadmap for the European Commission plan to revise and amend its international L-category vehicle approval system with regard to environmental and propulsion performance requirements.

Introduction to the EC intentions regarding L-category vehicles (powered cycles, mopeds, motorcycles, tricycles and quadricycles) in preparation for the stakeholder workshop scheduled for June 8, 2012.

Presentation prepared for the stakeholder consultation workshop scheduled for 8 June 2012 reviewing the aims of the EC’s International environmental and propulsion performance requirements (IEPPR) of L-category vehicles initiative.

Draft proposal for the terms of reference (aims, organization, and procedures) of a WP.29 informal working group for the revision and amendment of international L-Category vehicle requirements in the area of environmental and propulsion performance.

Introduction to the research program developed to support the European Commission’s “Revision and Amendments of International L-category Vehicle Approval in the Area of Environmental Performance and Propulsion Requirements” (IEPPR) initiative.

Invitation and draft agenda stakeholder consultation workshop – study on the revisions and amendments of international L-category vehicle requirements in the area of environmental and propulsion performance

This documents presents a flow chart for the process of aligning the EU’s “Regulation on environmental and propulsion performance
requirements” (REPPR) for L-category vehicles with related global regulations.