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.

Transposition of UN-GTR No.2 into the 02 series of amendments of UN-
Regulation No.40

Draft changes under consideration for submission to the January 2023 GRPE session.

This document is also available with tracked changes.

Revised mandate pursuant to discussions during the 36th EPPR informal group session.

This proposal has been prepared by the EPPR IWG Secretary, in close collaboration with WLTP IWG experts, in order to align the definitions of chassis dynamometer rollers between EPPR and WLTP GTRs. The content of this overview has been followed by WLTP although the specific definitions are not contained in GTR No. 15. This proposal recommends elaborating and introducing such definitions into the EPPR GTRs.

Overview of the current work and future plans of the EPPR informal group towards establishing harmonized emissions-related requirements of motorcycles and related vehicles.

Catalog of documents submitted to the EPPR informal group, including classification by test cycle and highlighting in red of documents currently under discussion.

Comments on the draft minutes from the 9th session, including proposed European Commission revisions and initial discussions during the 10th EPPR informal group session.

Comparison of the proposal to extend the mandate of the informal group working on motorcycle and other L-category vehicle propulsion system requirements with the original mandate of the group.

Proposal to extend the EPPR informal working group mandate into 2020 in order to permit the group to cover the full range of identified emissions and fuel consumption issues related to the full range of motorcycle and related light vehicles (Category 3/Category L).

Update on the JRC comprehensive environmental effects study to evaluate the air quality and the share of pollutants contributed by L-category vehicles, covering the requirements of test types I, III, IV, V, VII and VIII.

Published report by TRL/ECORYS under a contract from the European Commission to assess the expected impact (cost/benefit) of the proposals for global technical regulations to address fuel-efficiency, emissions, and related performance characteristics of motorcycles and related L-category vehicles.

European Commission working draft for a GTR to evaluate the propulsion performance of two- and three-wheeled light vehicles:

• maximum design vehicle speed; a test procedure comprising of repeated test runs over a defined distance on a test track or road to determine the maximum speed a vehicle is able to attain under standard conditions;
• net torque, net power; test procedures comprising of dynamometer runs at full load operation with measurements over a range of combustion engine and/or electric motor speeds to determine the maximum power and torque curves of the propulsion units;
• maximum thirty minutes power: test procedure comprising of a test run at a constant power over thirty minutes to determine the maximum power an electric powertrain is able to produce over a thirty minutes period;
• maximum continuous rated power, switch-off distance and maximum assistance factor: test procedure for light vehicles designed to pedal comprising of test runs on a test bench with measurements to determine the maximum continuous rated power, the driving distance with motor assistance after stopping to pedal (switch-off distance) and the maximum ratio of motor power to rider input power (assistance factor).