Proposal to introduce provisions for implementing the option (contained in footnote) for approval of certain “medium-duty” vehicles either under UN R152 (M₁/N₁) or UN R131 (M₂/N₂ /M₃). The proposal aims to clarify terms and establish procedures for demonstrating equivalent performance.

Proposal from the CS/OTA informal group to update the interpretation document pursuant to amendments introduced via the 01 series of amendments to UN R156.

Proposals to improve the text related to terminology across propulsion types (e.g., use of term “powertrain”) pursuant to similar improvements agreed via documents WP.20/2025/87 and 90.

Proposal to amend Appendix 1 to Annex 1 to insert reference to UN Regulation No. 156 series of amendments number in the Model of declaration of compliance for Software Update Management System, and amend Annex 4 to insert reference to the 01 series of amendments to UN Regulation No. 156 and delete reference to “this Regulation” in the Model of Certificate of Compliance for Software Update Management System. These amendments note which series of UN Regulation No. 156 the declaration and certificate apply to, as the management system may have to change due to requirements of the 01 Series.

Proposal to increase the usability and safety of the system and to ensure that the technical requirements reflect the latest system capabilities.

Proposal to clarify that the tolerance for the speed of the pedestrian dummy crossing the vehicle path is 0.4 km/h across all the series of amendments.

Proposal to update the declaration of compliance and Certificate of Compliance models to communicate the relevant series of amendments to ensure alignment between the management systems and the corresponding requirements of UN R156.

Proposal to include information in the test report to identify the specific software installed on the vehicle(s) used for compliance testing under UN Regulations.

This document presents activities in China on a testing methodology for traffic rule compliance by ADS-equipped vehicles. The document addresses safety risks from inconsistent adherence to traffic regulations and proposes that ADS shall comply with traffic rules applicable to the dynamic driving task in the country of operation, applying the same rules as human drivers. It describes 12 core driving tasks categorized into safety, operation, and interaction clusters, 398 evaluation criteria, and 4 traffic elements. The methodology integrates virtual simulation, closed-site testing, and real-road testing to verify ADS compliance with traffic rules comprehensively within the operational design domain and in critical scenarios.

Proposal to establish definitions for “e-axle”, “e-axle trailer” and “dynamo function” and to establish provisions for the approval of e-axle trailers with regard to their “dynamo function”.

Proposal from OICA, CLEPA, and CITA to amend CITA’s proposal to enable real-time reading of electrical transmission brake demand values via an electronic vehicle interface and an off-board electronic device during periodical technical inspections, including a 24-month transitional period.

Proposals to resolve issues with accepting the approval of M₂, M₃ and N₂ vehicles to Regulation No. 152.

This document proposes amendments to UN Regulation 13 for trailers with dynamo function, superseding GRVA-22-26, GRVA-2025-15, and GRVA-21-12. The dynamo function converts vehicle kinetic energy into electrical energy without affecting braking system forces and is limited to trailers of category O₂, O₃, and O₄ pending further development. Maximum retardation power limits are 22 kW for O₃/O₄ trailers and 2 kW for O₂ trailers, measured using specified methods. Requirements include wheel locking prevention with braking rate not exceeding 0.04 per wheel, functional safety assessment per Annex 18, and demonstration that anti-lock and stability control systems comply when dynamo function is enabled. The dynamo function shall not be used during brake application testing. Administrative amendments update Annexes 2, 4, 5, 10, 19, 20, and 21 to reference e-axles and dynamo functions.